2017-2024 Audi S5 4 Door General maintenance User Manual
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General maintenance for Your Audi S5 4 Door Fourth Generation (2017-2024)

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General maintenance  
209  
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210  
Care of vehicle and cleaning  
Care of vehicle and cleaning  
do to the paintwork. High temperatures (for instance in strong  
sunlight) further intensify the corrosive effect.  
General notes  
Regular care helps to maintain the value of the vehicle.  
After the period when salt is put on the roads it is important to have  
the underside of the vehicle washed thoroughly.  
Regular and careful care helps to maintain the value of the vehicle.  
This may also be one of the requirements for upholding any  
warranty claims in the event of corrosion or paint defects.  
Automatic car washes  
Before going through a car wash, be sure to take the usual precau-  
tions such as closing the windows and sunroof. If the vehicle has  
special accessories such as spoilers or a roof carrier or two-way  
radio aerial, etc., it is advisable to consult the car wash operator.  
Audi dealers and specialist retailers carry stocks of suitable car care  
products. Please follow the instructions for use on the packaging.  
WARNING  
It is best to use a car wash without revolving bristles if possible.  
• Cleaning products and other materials used for car care can  
Washing your car with a high-pressure cleaner  
damage health if misused.  
When cleaning the vehicle with a high-pressure cleaner, always  
follow the operating instructions for the equipment. This applies  
particularly to the operating pressure and the spraying distance. Do  
not hold the spray nozzle too close to soft materials, such as rubber  
hoses or seals.  
• Car care materials can contain toxic substances and must  
always be kept in a safe place out of reach of children.  
For the sake of the environment  
Do not use a nozzle that sprays the water out in a direct stream or  
one that has a rotating jet for forcing off dirt.  
• When purchasing car care products, try to select ones which are  
not harmful to the environment.  
• Surplus cleaning materials should not be disposed of together  
Washing the car by hand  
with ordinary household waste.  
When washing the car by hand, use plenty of water to soften the dirt  
first, and rinse off as well as possible.  
Then clean the vehicle with a soft sponge, glove or brush, using only  
slight pressure. You should start on the roof and work down. Special  
car shampoo should only be used for very persistent dirt.  
Care of exterior  
Washing the vehicle  
Rinse the sponge or glove thoroughly and often.  
The longer substances like insects, bird droppings, resinous tree  
sap, road dirt, industrial deposits, tar, soot or road salt and other  
aggressive materials remain on the vehicle, the more damage they  
Wheels, sills and similar should be cleaned last. Use a second  
sponge for this.  
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Care of vehicle and cleaning  
211  
Even if a wax solution is used regularly in the car wash, it is advis-  
able to protect the paint with a coat of wax at least twice a year.  
WARNING  
• Do not wash the vehicle with the ignition switched on – risk of  
In the summer, you will find it is much easier to remove dead insects  
(which accumulate on the bumper and the front of the bonnet) if the  
car has been waxed recently.  
accident.  
• Do not clean the underside of the car or inside the wheel arches  
without protecting your hands and arms. You may cut yourself on  
sharp metal parts.  
Polishing  
Polishing is only necessary if the paint has lost its shine, and the  
gloss cannot be brought back by putting on wax.  
• Take care when washing the car during the winter: moisture  
and ice on the brakes may affect braking efficiency – this could  
cause an accident.  
The car must be waxed after polishing if the polish used does not  
contain wax compounds to seal the paint.  
Caution  
Caution  
• Do not wash the vehicle in direct sunlight – otherwise the paint  
Matt painted and plastic parts must not be treated with wax or  
polish.  
can be damaged.  
• Do not use insect sponges, or abrasive household sponges, etc.  
– they can damage the surfaces.  
• The headlights should only be washed with water – do not wipe  
Ornamental trim and mouldings  
them with a dry cloth or sponge. It is best to use soapy water.  
• Never wash tyres with a jet that sprays the water out in a direct  
stream. This could damage the tyres – even if the spray is kept at a  
distance and only used for a very short time.  
The metal brightwork on the body is made of aluminium rather than  
chrome (for environmental reasons).  
Dirt or marks on the trim mouldings should be removed with an  
acid-free cleaning agent (do not use a chrome cleaner). Body polish  
is also unsuitable for use on trim mouldings. The intensive cleaning  
fluids often used before the car goes into a car wash may contain  
alkaline substances, which can cause dull or milky patches when  
they dry out.  
For the sake of the environment  
The car should only be washed in special wash bays. This prevents  
oily water from getting into the public drains. In some districts,  
washing vehicles anywhere else may be prohibited.  
Audi dealers carry stocks of cleaning products which have been  
tested for use on your vehicle and are not harmful to the  
environment.  
Waxing and polishing  
Waxing  
Waxing protects the paintwork. It is time to apply a good coat of wax  
when water no longer forms droplets and rolls off the clean paint-  
work.  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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212  
Care of vehicle and cleaning  
Plastic parts  
WARNING  
Plastic parts will come clean with regular washing. If this is not suffi-  
cient, plastic parts should only be treated with a special solvent-free  
plastic cleaning agent. Do not use paint cleaners, polishes or wax on  
plastic parts.  
Do not use water-repellent coatings on the windscreen. In bad visi-  
bility conditions such as light rain, low sun or when driving at  
night these coatings can cause increased dazzle, which is a  
serious safety hazard. Such coatings can also cause the wiper  
blades to judder.  
Paint damage  
Caution  
Minor damage to the paint, such as scratches or stone chips, should  
be touched up without delay before the metal starts to corrode. Suit-  
able touch-up brushes or sprays for your car can be obtained from  
an Audi dealer.  
• Remove snow and ice from windows and mirrors with a plastic  
scraper only. To avoid scratches caused by dirt on the glass, the  
scraper should only be pushed in one direction and not moved to  
and fro.  
• The heating element for the rear window is located on the inner  
side of the window. To avoid damaging the heating element, do not  
put stickers on the inner side of the window.  
The number of the original paint finish on the vehicle is given on the  
data sticker ⇒ page 279.  
If corrosion is already visible it must be thoroughly removed by a  
qualified workshop.  
• Never use warm or hot water to remove snow and ice from  
windows and mirrors. This could cause the glass to crack!  
Windows  
Rubber seals (weatherstrips)  
Clear vision is an essential safety factor.  
The weatherstrips will remain pliable and last longer if they are  
occasionally treated with a suitable care product (for example sili-  
cone spray). This will also prevent premature ageing and leaks. The  
doors will be easier to open as well. If they are kept pliable, the door  
seals will be less likely to freeze up in the winter.  
The windscreen must not be cleaned with insect remover or wax,  
otherwise the windscreen wipers will not function properly  
(juddering).  
Traces of rubber, oil, grease or silicone can be removed with a  
window cleaning solution or a silicone remover. Wax residue can  
only be removed with a special cleaner. Your Audi dealer will be able  
to provide you with more detailed information.  
Wheels  
The windows should also be cleaned on the inside at regular inter-  
vals.  
The wheels require regular attention to preserve their appearance.  
It is important to remove road salt and brake dust by washing the  
wheels at regular intervals, otherwise the finish will be impaired.  
Use a separate cloth or chamois to dry the windows. Cloths used for  
waxing and polishing contain residues that will cause smears on the  
glass.  
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Care of vehicle and cleaning  
Plastic parts and leatherette  
213  
After washing, the wheels should only be cleaned with an "acid-  
free" cleaning agent for alloy wheels. This is available from Audi  
dealers and specialist retailers. Never leave the cleaning agent on  
the rims for any longer than specified in the instructions before  
rinsing it off. If the wheel cleaner fluid contains acid it can attack the  
surfaces of the wheel bolts.  
Plastic parts and leatherette can be cleaned with a damp cloth. If  
this is not sufficient, plastic parts and leatherette should only be  
treated with a special solvent-free plastic cleaner.  
Car polish or other abrasive agents should not be used. If the  
protective paint coating is damaged by stone chips etc., the  
damaged area should be touched up immediately.  
Textile covers and trim parts  
Textile covers and trim parts (e.g. seats, door trim) should be  
cleaned regularly with a vacuum cleaner. This will remove surface  
dirt which could otherwise be rubbed into the textile material  
during use. Do not use steam cleaners, as the steam could carry the  
dirt deeper into the textile material.  
WARNING  
Please note when cleaning the wheels that water, ice and road salt  
can impair the effectiveness of the brakes – this can cause an  
accident.  
Normal cleaning  
We recommend that you use a soft sponge or lint-free, micro-fibre  
cloth for normal cleaning. Only use brushes on floor coverings and  
mats, as other textile surfaces could become damaged.  
Care of interior  
In the case of normal surface dirt you can use a foam cleaner. Use a  
sponge to spread the foam on the textile surface and to work it into  
the material lightly. However, make sure that the textile material  
does not become soaking wet. Then dab off the foam with a dry and  
absorbent cloth (e.g. a micro-fibre cloth) and vacuum off any  
residue once the surface is completely dry.  
MMI display screen and control console  
The MMI display screen can be cleaned with a soft cloth and a  
special “LCD cleaner” (available from retailers of electrical goods).  
Moisten the cloth with a small amount of the cleaning fluid.  
Clean the MMI control console with a fine brush first to prevent any  
dirt from getting in between the control buttons and the housing.  
We then recommend wiping the MMI control console using a cloth  
moistened with washing-up liquid and water.  
Removal of stains  
To treat stains caused by spilled drinks (coffee, fruit juice or similar)  
make up a solution with a mild detergent for sensitive fabrics and  
apply it with a sponge. If the stains are difficult to remove, a  
washing paste can be applied directly onto the stain and worked  
into the fabric. The surface will then have to be wiped with clear  
water to remove any residue left by the paste. To do so, use a damp  
cloth or sponge and then dab the stain with an absorbent cloth.  
Caution  
To avoid scratching the screen, do not wipe the MMI display with a  
dry cloth.  
• To avoid any possibility of damage, do not let any liquid get  
Treat chocolate or make-up stains with a washing paste and then  
rinse off with water (using a damp sponge).  
inside the control console.  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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214  
Care of vehicle and cleaning  
A spirit-based cleaner can be used to remove grease, oil, lipstick or  
ball point pen. Then dab the dissolved grease or colour particles off  
with an absorbent cloth or similar. You may also have to treat the  
stain once more using washing paste and water.  
use. However, this means that the typical natural characteristics of  
the surface are less apparent, though this does not affect quality.  
Cleaning and care  
Because of the natural properties of the specially selected hides  
employed, the finished leather has a certain sensitivity to grease  
and dirt, etc. so a degree of care is required in everyday use and  
when looking after the leather. Dark clothing (especially if damp or  
incorrectly dyed) may stain leather upholstery. Dust and grit in the  
pores and seams can have an abrasive effect and damage the  
surface of the leather. Therefore leather should be cleaned at  
regular intervals, depending on the actual amount of use. When  
they have been in use for a certain time, your car seats will acquire  
a typical and distinctive patina. This is characteristic for real leather  
upholstery, and is a sign of genuine quality.  
If the covers or textile trim panels are badly soiled we recommend  
that you have them cleaned by a professional cleaning company.  
Note  
Please make sure you close any velcro fasteners on your clothing, as  
these could otherwise damage the upholstery.  
Applies to vehicles: with leather upholstery  
Natural leather  
To maintain the value of natural leather you should note the  
following points:  
Audi does everything possible to preserve the special  
qualities of leather as a natural product.  
General notes  
Caution  
We have a wide selection of leathers. The main type used is nappa  
in various forms, that is leather with a smooth surface in a selection  
of colours.  
• Avoid exposing leather to direct sunlight for long periods, other-  
wise it may tend to lose some of its colour. If the car is left for a  
prolonged period in the bright sun, it is best to cover the leather.  
The amount of dye used determines the appearance and properties  
of leather. If the leather is left in a more natural state, it retains its  
typical natural appearance and is pleasant and comfortable for the  
seat occupants. Fine veins, healed scars, insect bites, wrinkles and  
a subtle variation in shading remain visible; these are the character-  
istic features of genuine natural leather.  
• Sharp-edged objects on clothing, such as belts, zip fasteners,  
rivets or similar, can also leave permanent scratches and rough  
marks on the surface of the leather.  
Note  
• Use a suitable impregnating cream with ultra-violet protection at  
regular intervals and after cleaning. This cream will nourish and  
moisturise the leather, keep it supple and able to breathe. In addi-  
tion, it will also help to protect the surface of the leather.  
Natural napped leather does not have a protective surface coating  
of dye. It is therefore somewhat more prone to damage. You should  
bear this in mind if children or pets often travel in the car, or if there  
are other factors that could lead to damage.  
• Clean the leather every 2 to 3 months and remove fresh dirt as  
Types of leather with a coloured surface coating are likely to be  
more resistant to damage. This has a great advantage for day-to-day  
necessary.  
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Care of vehicle and cleaning  
215  
• Remove stains from fresh ball-pen and other inks, lipstick, shoe  
– Treat fat-based, dried-in stains with grease-dissolving  
cream and similar stains as soon as possible.  
spray.  
• Preserve the colour of the leather. A special coloured cream will  
renew the colour of the leather when required and will eliminate  
differences in colour.  
– Treat less common stains such as ball-pen and other  
inks, felt-tip pens, nail polish, dispersion paint, shoe  
cream etc. with a special leather stain remover.  
Applies to vehicles: with leather upholstery  
Leather care products  
Cleaning and care of leather upholstery  
– The leather should be treated regularly (about twice a  
year) with a special leather-care product.  
Natural leather requires an extra degree of attention and  
care.  
– Apply the cream very sparingly.  
Normal cleaning  
– Then wipe off with a soft, dry cloth.  
– Moisten a cotton or woollen cloth with water and wipe  
over the leather surfaces.  
Should you have any questions regarding the care and cleaning of  
the leather upholstery in your vehicle, we recommend that you  
contact your Audi dealer. The staff there will gladly provide you with  
further information on cleaning and care of your upholstery and on  
our complete range of leather care products:  
More stubborn dirt  
– More stubborn dirt can be removed using a mild soap  
solution (pure liquid soap: two tablespoons dissolved in  
one litre of water).  
• Cleaning and care set  
• Coloured leather-care cream  
– It is very important not to let the water soak through the  
leather or penetrate into the seams.  
• Stain remover for ball-pen inks, shoe cream etc.  
• Grease dissolving spray  
– Then wipe off with a soft, dry cloth.  
• New products and further developments  
Removal of stains  
Caution  
– Remove fresh water-based stains such as coffee, tea,  
juices, blood etc. with an absorbent cloth or kitchen roll,  
dried-on stains with the cleaning agent from the care set.  
On no account use solvents (such as petrol, turpentine), wax polish,  
shoe cream or similar materials.  
– Remove fresh fat-based stains on the surface such as  
butter, mayonnaise, chocolate, etc. with an absorbent  
cloth or kitchen roll or with the cleaning agent from the  
care set.  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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216  
Care of vehicle and cleaning  
Applies to vehicles: with Alcantara seat covers  
Seat belts  
Cleaning Alcantara  
Seat belts should be looked after properly to ensure that  
they give the full protection.  
Removing dust and dirt  
– Keep the seat belts clean.  
– Moisten a cloth just a little and wipe down the seat  
covers.  
– For cleaning, use a mild soap solution.  
– Check the condition of the seat belts at regular intervals.  
Removing stains  
– Moisten a cloth with lukewarm water or diluted methyl-  
ated spirits.  
Very dirty belts may not retract properly.  
Make sure that the inertia reel seat belts are completely dry before  
allowing them to retract.  
– Dab at the stain. Start at the outside and work inwards.  
– Dry the area you have cleaned with a soft cloth.  
Caution  
Do not use leather cleaning products on Alcantara seat covers.  
You may use a suitable shampoo on dust and dirt.  
• Do not remove the seat belts from the vehicle to clean them.  
• Do not use chemical cleaning agents on the seat belts, as this  
can damage the webbing. Ensure that the belts do not come into  
contact with corrosive fluids.  
Dust and grit in the pores and seams can have an abrasive effect  
and damage the surface of the leather. If the car is left standing in  
the sun for long periods, the leather should be protected against  
direct sunlight to prevent it from fading. However, slight colour vari-  
ations will arise in normal use.  
• If you find any damage to the belt webbing, belt fittings, the belt  
retractor or the buckle, the belt in question must be replaced by a  
qualified workshop.  
Caution  
• Do not use solvents, wax polish, shoe cream, stain removers,  
leather cleaning products or any similar products on Alcantara.  
• To avoid damage, stubborn stains should be removed by a qual-  
ified workshop.  
• On no account use brushes, hard sponges or similar utensils.  
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Fuel and filling the tank  
217  
Fuel and filling the tank  
Petrol  
Filling the tank  
Petrol grade  
Filling the tank  
The correct grade of petrol is listed inside the fuel tank  
flap.  
The vehicle is equipped with a catalytic converter and must only be  
run on unleaded petrol. Unleaded petrol must comply with the  
European EN 228 standard. The petrol grades have different octane  
ratings (RON). If, in exceptional circumstances, the correct octane  
rating is not available, please note the following:  
Fig. 207 Vehicle as  
seen from the rear  
right: Opening fuel  
tank flap  
Your engine normally requires Super Plus unleaded petrol (98 RON)  
according to ⇒ page 281, “Performance, weights and dimensions”.  
Premium unleaded fuel with 95 RON can also be used. This can,  
however, result in a slight loss of power under certain driving condi-  
tions. If premium unleaded petrol is not available, the engine can be  
run on regular unleaded petrol with 91 RON as an emergency  
measure. In this case only use moderate engine speeds and a light  
throttle. Avoid using full throttle. Fill up with premium or Super Plus  
petrol as soon as possible.  
Caution  
Fig. 208 Fuel tank flap  
with tank cap attached  
• Petrol complying with the EN 228 standard can contain small  
quantities of ethanol. However, “bioethanol fuels”, which are  
retailed under various different names such as E50 and E85, and  
which contain a large proportion of ethanol, must not be put into  
the vehicle, as this would damage the fuel system.  
The flap that covers the tank cap is unlocked and locked  
automatically by the central locking.  
• Even one tankful of leaded fuel would permanently impair the  
Unscrewing the tank cap  
efficiency of the catalytic converter.  
– Press the left side of the flap to open it ⇒ fig. 207 -arrow-.  
• High engine speed and full throttle can damage the engine when  
using petrol with an octane rating lower than the correct grade for  
the engine.  
– Unscrew the tank cap anti-clockwise.  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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218  
Fuel and filling the tank  
– Hook the cap onto the open flap ⇒ page 217, fig. 208.  
WARNING (continued)  
build up during filling, causing the fuel vapour to ignite. Danger  
of explosion. Always place the canister on the ground to fill it.  
Closing the tank cap  
– Screw on the tank cap clockwise until it cannot be turned  
further.  
− Insert the filler nozzle as far as possible into the spare fuel  
canister.  
– Press the left side of the flap to close it (you should hear  
it click into place).  
− If the spare fuel canister is made of metal, the filler nozzle  
must be in contact with the canister during filling. This helps  
prevent an electrostatic charge building up.  
When the automatic filler nozzle is operated correctly it will switch  
itself off as soon as the tank is “full”. Do not try to put in more fuel  
after the nozzle cuts out, as this will fill the expansion chamber in  
the fuel tank.  
− Make sure you never spill fuel in the vehicle or in the luggage  
compartment. Fuel vapour is explosive. Risk of fatal accident!  
Caution  
The correct fuel grade for your vehicle is given on a sticker on the  
inside of the tank flap. Further notes on fuel ⇒ page 217.  
• Remove any fuel spills from the paintwork immediately.  
• Never run the tank completely dry. If there is an irregular fuel  
supply, misfiring can occur. As a result unburnt fuel can enter the  
exhaust system and cause damage to the catalytic converter(s).  
The tank capacity of your vehicle is given in the Technical data  
section ⇒ page 279.  
WARNING  
For the sake of the environment  
Fuel is highly inflammable and can cause serious burns and other  
injuries.  
Do not try to put in more fuel after the automatic filler nozzle has  
switched off; this may cause the fuel to overflow if it becomes  
warm.  
• For safety reasons always switch off the auxiliary heating*  
before refuelling the vehicle.  
• For safety reasons we do not recommend carrying a spare fuel  
canister in the vehicle. The canister could become damaged in an  
accident and leak.  
• Observe all relevant statutory regulations on using, storing and  
transporting spare fuel canisters.  
• When filling your tank or a spare fuel canister with fuel, do not  
smoke and keep away from naked flames. Risk of explosion!  
• If, in exceptional circumstances, you have to carry a spare fuel  
canister, please observe the following warnings:  
− Never fill fuel into the spare fuel canister with the canister  
placed in or on top of the vehicle. An electrostatic charge could  
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Fuel and filling the tank  
219  
Releasing the tank flap manually  
The tank flap can be released manually if the central  
locking system should fail to operate.  
Fig. 209 Luggage  
compartment:  
Releasing the fuel tank  
flap manually  
The manual release mechanism is located behind the side  
trim on the right of the luggage compartment.  
– Open the right-hand side trim.  
– Release the ring from its holder and pull the ring  
⇒ fig. 209. You should now be able to open the tank flap  
in the usual way ⇒ page 217.  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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220  
Checking and topping up fluids  
Checking and topping up fluids  
Bonnet  
Opening the bonnet  
Releasing the bonnet  
The bonnet is released from inside the vehicle.  
Fig. 211 Release catch  
under the bonnet  
Fig. 210 Detail of foot-  
well on driver's side:  
Release lever  
Before opening the bonnet make sure that the windscreen  
wiper arms are not lifted away from the glass. Otherwise the  
paint may get damaged.  
– Open the driver's door.  
– Lift the bonnet slightly ⇒  
.
– Pull the lever under the dashboard in the direction indi-  
– Press the release catch under the bonnet upwards  
cated (arrow) ⇒ fig. 210.  
⇒ fig. 211. This will release the arrester hook.  
– Open the bonnet.  
The bonnet springs out of its lock.  
The bonnet is held open by two gas-filled struts.  
WARNING  
To avoid the risk of being scalded, never open the bonnet if you see  
steam or coolant escaping from the engine compartment. Wait  
until no steam or coolant can be seen before opening the bonnet.  
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Checking and topping up fluids  
221  
Working on components in the engine  
compartment  
WARNING (continued)  
• Observe the following additional warnings if work on the fuel  
Extra caution is necessary when working on components  
in the engine compartment.  
system or the electrical system is necessary:  
− Always disconnect the battery.  
− Do not smoke.  
Always be aware of the danger of injury and scalding as well as the  
risk of accident or fire when working in the engine compartment  
(e.g. when checking and refilling fluids). Always observe the warn-  
ings listed below and follow all normal safety precautions. The  
engine compartment of any motor vehicle is a potentially  
− Never work near naked flames.  
− Always keep an approved fire extinguisher immediately  
available.  
hazardous area. ⇒  
.
Caution  
When topping up fluids make sure the correct fluid is put into the  
correct filler opening. This can otherwise cause serious malfunc-  
tions or engine damage.  
WARNING  
• Switch off the engine.  
• Remove the ignition key.  
• Apply the parking brake.  
For the sake of the environment  
• Move the gear lever into neutral.  
• Wait for the engine to cool down.  
• Keep children away from engine compartment.  
Inspect the ground underneath your vehicle regularly so that any  
leaks are detected at an early stage. If you find oil spots or other  
fluids, have your vehicle inspected by a qualified workshop.  
• Never spill fluids on hot engine components. These fluids can  
cause a fire (e.g. radiator anti-freeze).  
Note  
• Take care not to cause short circuits in the electrical system,  
On right-hand drive vehicles* some of the containers/ reservoirs  
mentioned below are located on the other side of the engine  
compartment.  
especially when working on the battery.  
• Do not touch the radiator fan when the engine is hot. The fan  
may start running suddenly.  
• Do not unscrew the cap on the expansion tank when the engine  
Closing the bonnet  
is hot. The cooling system is under pressure.  
• Protect face, hands and arms by covering the cap with a large,  
– To close the bonnet, pull it down to overcome the spring  
pressure.  
thick rag to protect against escaping coolant and steam.  
• If any tests have to be performed with the engine running,  
there is an extra safety risk from the rotating parts, such as the  
drive belts, alternator and radiator fan, etc., and from the high-  
voltage ignition system.  
– Then let it drop into the catches; do not press down ⇒  
.
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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222  
Checking and topping up fluids  
1
A Jump-start terminal (+) under a cover . . . . . . . . . . . . .  
230, 256  
227  
WARNING  
2
A Brake fluid reservoir () . . . . . . . . . . . . . . . . . . . . . . . .  
3
224  
223  
225  
231  
A Engine oil filler cap () . . . . . . . . . . . . . . . . . . . . . . . .  
• For safety reasons the bonnet must always be completely  
closed when the vehicle is moving. After closing it always check  
that it is properly secured. The bonnet must be flush with the adja-  
cent body panels.  
4
A Engine oil dipstick (orange) . . . . . . . . . . . . . . . . . . . . . .  
5
A Radiator expansion tank () . . . . . . . . . . . . . . . . . . . . .  
6
A Windscreen washer container () . . . . . . . . . . . . . . . .  
• Should you notice that the bonnet is not safely secured when  
the vehicle is moving, stop the vehicle immediately and close the  
bonnet properly, otherwise it could cause an accident.  
7
A Jump-start terminal (-) with hexagon head . . . . . . . . . 230, 256  
8
A Hydraulic fluid reservoir for power steering . . . . . . . .  
190  
Engine oil  
Engine compartment layout  
General notes  
Engine compartment layout  
Main components for checking and refilling  
We recommend that you have the oil change carried out by an Audi  
dealership/qualified workshop according to the intervals stated in  
the Service Schedule or according to the service interval display in  
the instrument cluster.  
Whether your vehicle is serviced at flexible service intervals or fixed  
service intervals is shown in the Service Schedule.  
The correct oil specifications for your engine are listed in the Tech-  
nical data section ⇒ page 281, “Performance, weights and dimen-  
sions”.  
Check that the specifications quoted (VW standards) appear on the  
container either singly or in combination with other specifications.  
Flexible service intervals (Audi LongLife Service*)  
Special engine oils ⇒ page 281, “Performance, weights and dimen-  
sions” have been developed as part of the Audi LongLife Service  
(⇒ “Service Schedule”).  
This type of oil must be used if you intend to take advantage of the  
extended maintenance intervals allowed by Audi's LongLife Service.  
Fig. 212 Locations of fluid containers, engine oil dipstick and engine oil filler  
cap  
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Checking and topping up fluids  
Checking oil level  
223  
• Do not mix the LongLife oil with oil intended for fixed service  
intervals, as the requirements for the extended service intervals are  
then no longer guaranteed.  
– Park your vehicle on a level surface.  
– Allow the warm engine to run briefly at idling speed and  
then switch off the ignition.  
• In exceptional circumstances, if the engine oil level is too low  
⇒ page 223 and you cannot obtain the specified LongLife oil, you  
can put in a small quantity of oil for fixed service intervals -  
⇒ page 281, “Performance, weights and dimensions”. This should  
not be done more than once and no more than 0.5 litres should be  
used.  
– Wait approx. 2 minutes.  
– Pull out the dipstick. Wipe the dipstick with a clean cloth  
and insert it again, pushing it in as far as it will go.  
Fixed service intervals (Inspection Service)*  
– Then pull the dipstick out again and check the oil level  
⇒ fig. 213. If the oil level is too low, add more engine oil  
⇒ page 224.  
If you do not take advantage of the Audi LongLife service for your  
car, you can use the oils for fixed service intervals - ⇒ page 281,  
“Performance, weights and dimensions”. In this case, your car must  
be serviced after a fixed interval of 1 year / 15,000 km (10,000 miles)  
– see Service Schedule.  
a
Oil level in area A  
– Do not top up oil.  
• In exceptional circumstances, if the engine oil level is too low  
⇒ page 223 and you cannot obtain the oil specified for your vehicle,  
you can put in a small quantity of oil conforming to the specification  
ACEA A2 or ACEA A3. This should not be done more than once and  
no more than 0.5 litres should be used.  
b
Oil level in area A  
– Oil can be topped up. After topping up the oil level should  
a
be in area A.  
c
Oil level in area A  
Checking the oil level  
– Oil must be topped up. After topping up the oil level  
a
should be in area A.  
Depending on how you drive and the conditions in which the car is  
used, oil consumption can be up to 0.5 ltr./1000 km. Oil consump-  
tion is likely to be higher for the first 5000 km. For this reason the  
engine oil level must be checked at regular intervals, preferably  
when filling the tank and before a journey.  
Fig. 213 Markings on  
oil dipstick  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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224  
Checking and topping up fluids  
• No additives should be used with engine oil. Any damage caused  
by the use of such additives would not be covered by the factory  
warranty.  
Topping up the engine oil  
For the sake of the environment  
• Never pour oil down drains or into the ground.  
• Always observe statutory requirements when disposing of  
empty oil canisters.  
Fig. 214 Engine  
compartment: Engine  
oil filler cap  
Cooling system  
– Unscrew cap from oil filler opening ⇒ fig. 214.  
Coolant  
– Carefully put in the specified grade of oil ⇒ page 281  
The purpose of the coolant is to carry heat away from the  
engine. The correct amount of anti-freeze is important to  
prevent the cooling system from freezing in winter.  
0.5 litres at a time.  
– After two minutes check the oil level once again  
⇒ page 223.  
The cooling system is filled for life at the factory, so the coolant does  
not need to be changed. The coolant consists of a mixture of water  
and anti-freeze additive G12+. This is a glycol-based anti-freeze with  
anti-corrosion additives.  
– If the oil level is too low, add more engine oil.  
– Replace the oil filler cap carefully and push the dipstick  
all the way in.  
Anti-freeze additive  
The amount of anti-freeze additive required depends on the temper-  
atures to be expected in the winter season. If the anti-freeze concen-  
tration is too low the coolant can freeze, resulting in failure of the  
cooling system and heater.  
WARNING  
• Ensure that no oil comes into contact with hot engine compo-  
nents when topping up: this could cause a fire.  
The cooling system is filled at the factory with the correct amount of  
anti-freeze for the country concerned.  
• Wash your skin thoroughly if it comes into contact with engine  
oil.  
In most cases the mixture consists of 60% water and 40% additive.  
This mixture gives the necessary antifreeze protection down to –  
25 °C and protects the alloy parts of the cooling system against  
corrosion. It also prevents scaling and raises the boiling point of the  
coolant.  
Caution  
a
• The oil level must never be above area A, as this may result in  
damage to the catalytic converter or to the engine. Contact a quali-  
fied workshop to extract the engine oil if necessary.  
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Checking and topping up fluids  
225  
Countries with warm climate  
Checking coolant level  
The coolant level can be checked at a glance.  
The coolant concentration must not be reduced by adding plain  
water, even in the summer or in warm climates. The concentration  
of the anti-freeze additive must always be at least 40%.  
Countries with cold climate  
If greater anti-freeze protection is required in very cold climates, the  
proportion of the anti-freeze additive G12+ can be increased. A  
concentration of 60% offers protection down to about -40 °C. The  
concentration of the antifreeze additive must not be more than 60%,  
otherwise this would reduce the antifreeze protection. In addition,  
the cooling effect will be adversely affected.  
Fig. 215 Engine  
compartment: Mark-  
ings on radiator expan-  
sion tank  
Vehicles for export to countries with a cold climate (such as Sweden,  
Norway and Finland) are supplied with antifreeze protection down  
to about -35 °C. The concentration of the antifreeze additive for  
these countries should always be at least 50%.  
– Switch off the ignition.  
– Read off coolant level on radiator expansion tank  
⇒ fig. 215. When the engine is cold it should be between  
the “MIN” and “MAX” marks. When the engine is hot it  
may be slightly above the “MAX” mark.  
Caution  
• It is advisable to have the cooling system checked before the  
winter season to make sure that the antifreeze concentration is  
adequate for the conditions to be expected. This applies particularly  
if you intend to take the car into a colder climate zone. If necessary,  
have the anti-freeze concentration increased to 50 - 60% as required.  
The coolant level should be checked with the engine switched off.  
The coolant level is monitored by a warning lamp in the instrument  
cluster ⇒ page 32. However, we recommend that it should be  
checked occasionally.  
• Use only anti-freeze additive G12+, an additive meeting the spec-  
ification “TL-VW 774 F ”. Other additives may give considerably infe-  
rior corrosion protection. The resulting corrosion in the cooling  
system can lead to a loss of coolant, causing serious damage to the  
engine.  
Coolant losses  
Any loss of coolant normally indicates a leak in the cooling system.  
In this case the cooling system should be inspected by a qualified  
workshop without delay. It is not sufficient merely to top up the  
coolant.  
• The coolant additive G12+ can be mixed only with additives G11  
and G12.  
If there are no leaks in the system, a loss of coolant can only occur  
if the coolant boils and is forced out of the system as a result of  
overheating.  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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Checking and topping up fluids  
Caution  
WARNING  
Radiator sealants must not be added to the coolant. Such additives  
could seriously impair the function of the cooling system.  
• The cooling system is under pressure. Do not unscrew the cap  
on the expansion tank when the engine is hot: you could be  
scalded by escaping steam  
• The coolant and coolant additive can be a health hazard. Store  
the coolant additive in the original container in a safe place out of  
reach of children – risk of poisoning.  
Topping up the coolant  
Be careful when topping up coolant.  
– Switch off the engine.  
For the sake of the environment  
– Wait for the engine to cool down.  
Drained off coolant should not be used again. Drain off the used  
coolant into a suitable container and dispose of it in the proper  
manner (observe environmental regulations).  
– Cover the cap on the expansion tank ⇒ page 225, fig. 215  
with a cloth, and carefully unscrew the cap anti-clock-  
wise ⇒  
.
– Add coolant.  
Radiator fan  
– Screw the cap on again tightly.  
The radiator fan can start running spontaneously.  
The radiator fan is driven by the engine via a poly V-belt. The speed  
of the fan is varied by a viscous clutch according to the temperature.  
Make sure that the coolant meets the required specifications  
⇒ page 224, “Coolant”. Do not use a different type of additive if anti-  
freeze additive G12+, G12 or G11 is not available. In this case use  
only water and bring the coolant concentration back up to the  
correct level as soon as possible by putting in the specified additive.  
There is also an auxiliary electric fan, which cuts in automatically  
whenever the temperature of the coolant and the engine compart-  
ment rises above a certain level.  
Always top up with fresh, unused coolant.  
The auxiliary fan can continue to run for as long as 10 minutes after  
stopping the engine – even after the ignition is switched off. It may  
Do not fill above the “MAX” mark. Excess coolant is forced out of the  
system through the valve in the filler cap when the engine gets hot.  
also start running suddenly ⇒  
after a while if  
• residual heat raises the coolant temperature, or  
If a lot of coolant has been lost, wait for the engine to cool down  
before putting in cold coolant. Failure to do so could result in  
serious engine damage.  
• the hot engine compartment is additionally heated up by the  
sun.  
WARNING  
When working in the engine compartment be aware that the radi-  
ator fan may start running suddenly – risk of injury.  
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Checking and topping up fluids  
Changing brake fluid  
227  
Brake fluid  
When required, the brake fluid should be changed by a  
competent mechanic with the proper equipment.  
Checking brake fluid level  
The brake fluid level can be checked at a glance.  
Brake fluid gradually absorbs moisture from the atmosphere. If the  
water content in the brake fluid is too high, this may cause corrosion  
in the brake system over time. In addition, the boiling point of the  
brake fluid will be considerably reduced. This could adversely affect  
the braking ability in certain circumstances.  
For this reason the brake fluid must be changed periodically.  
Your vehicle's Service Schedule will tell you when the brake fluid has  
to be changed.  
Fig. 216 Engine  
compartment: Mark-  
ings on brake fluid  
reservoir  
It is advisable to have the brake fluid changed as part of a regular  
Inspection Service at your Audi workshop. They are familiar with the  
procedure and have the necessary special tools and spare parts as  
well as the proper facilities for disposing of the old fluid.  
– Check the fluid level on the brake fluid reservoir  
⇒ fig. 216. It should always be between the “MIN” and  
“MAX” marks.  
Use only the genuine brake fluid specified by the factory Qualified  
workshops know that the brake fluid “DOT 4” is approved by Audi.  
The brake fluid must be fresh and unused.  
In right-hand drive vehicles the brake fluid reservoir is on the other  
side of the engine compartment.  
WARNING  
The fluid level may drop slightly after a period of time due to the  
• Brake fluid is poisonous; store it in the sealed original container  
automatic compensation for brake pad wear. This is quite normal.  
in a safe place out of reach of children.  
However, if the level goes down noticeably in a short time, or drops  
below the “MIN” mark, there may be a leak in the brake system. If  
the fluid level in the reservoir is too low, this will be indicated by the  
brake warning lamp ⇒ page 31. If this should happen, take the car  
to a qualified workshop immediately and have the brake system  
inspected.  
• Heavy use of the brakes may cause a vapour lock if the brake  
fluid is left in the system for too long. This would seriously affect  
the efficiency of the brakes and the safety of the car – risk of acci-  
dent.  
Caution  
Please note that brake fluid will attack the paintwork on contact.  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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Checking and topping up fluids  
Please note that certain convenience features, such as the Audi  
advanced key*, the remote control key or the electrical seat adjust-  
ment may not be available when you unlock the vehicle. These func-  
tions will be restored when you switch on the ignition and start the  
engine.  
For the sake of the environment  
If the fluid has to be drained out of the brake system, use an appro-  
priate container to catch the used brake fluid and dispose of it in the  
proper manner.  
Winter conditions  
At low temperatures the battery has to work very hard. It also  
provides only a fraction of the starting power it has at normal  
temperatures.  
Battery  
General notes  
For this reason, we recommend having the battery checked and  
charged if necessary before the start of winter ⇒ page 230.  
All work on batteries requires specialist knowledge.  
The battery is virtually maintenance-free. It is checked as part of the  
Inspection Service.  
WARNING  
We recommend that you replace a battery once it is older than 5  
years.  
• All work on batteries requires specialist knowledge. For queries  
regarding the vehicle battery please contact an Audi dealership or  
other qualified workshop (risk of chemical burns / risk of explo-  
sion).  
When an airbag is triggered, the battery will, under certain circum-  
stances, be disconnected from the on-board power supply for  
safety reasons ⇒  
page 166.  
in “General notes on airbag system” on  
• The battery must not be opened. Do not attempt to make any  
changes to the electrolyte level of the battery. Otherwise, there is  
a risk that a mixture of oxygen and hydrogen gas can accumulate  
and cause an explosion.  
Disconnecting the battery  
If the battery is disconnected, some of the vehicle's functions will  
become inoperative (e.g. electric windows). These functions will  
require resetting after the battery is reconnected. For this reason,  
the battery should only be disconnected from the vehicle's electrical  
system when absolutely necessary.  
Note  
If the vehicle is to be left standing for a period of several weeks at  
extremely low temperatures, the battery should be removed from  
the vehicle. This ensures that it cannot “freeze up” and be  
damaged.  
If the vehicle is not used for long periods  
If you do not drive your vehicle for a period of several days or weeks,  
the power management will gradually shut off the on-board  
systems one by one, or reduce the amount of current they are using.  
This limits the amount of power consumed and helps to ensure reli-  
able starting even after a long period ⇒ page 192.  
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Checking and topping up fluids  
229  
Important safety warnings for handling a car  
battery  
WARNING (continued)  
charges) when handling cables and electrical equipment. Never  
cross the battery poles. The resulting high-energy sparks can  
cause injury.  
All work on batteries requires specialist knowledge.  
The vehicle battery is located under the floor panel in the luggage  
compartment.  
• A highly explosive mixture of gases is given off when the  
battery is under charge. Only charge battery in a well ventilated  
area.  
Wear safety glasses!  
• Keep children away from the battery and battery acid.  
• Switch off all electrical equipment before starting any work on  
the vehicle electrical system. Remove the ignition key. The minus  
cable of the battery must be disconnected. When changing a light  
bulb, it is sufficient to only turn off the light.  
Battery acid is extremely corrosive. Wear protec-  
tive gloves and safety glasses.  
Keep open flames, sparks, uncovered lights and  
lit cigarettes away from battery!  
• Before disconnecting the battery, turn off the anti-theft  
A highly explosive mixture of gases is given off  
when the battery is under charge!  
system! Otherwise, the alarm will sound.  
• When disconnecting the battery from the vehicle's electrical  
Keep children away from the battery and battery  
acid.  
system, first disconnect the minus cable and then the plus cable.  
• Before reconnecting the battery, turn off all electrical equip-  
ment. First connect the plus cable, then the minus cable. The  
battery cables must not be connected to the wrong battery poles  
- serious risk of cable fire.  
WARNING  
Always be aware of the danger of injury and chemical burns as  
well as the risk of accident or fire when working on the battery and  
the electrical system.  
• Never charge a frozen or thawed out battery - risk of explosion  
and chemical burns! A battery must be replaced once it has been  
frozen. When it is discharged the battery can freeze at tempera-  
tures around 0°C.  
• Wear safety glasses. Do not allow acid or lead particles to come  
into contact with eyes, skin or clothing.  
• Make sure that the vapour hose is always attached to the  
• Battery acid is extremely corrosive. Wear protective gloves and  
safety glasses. Do not tilt the battery - acid can leak out of the  
vapour vent. If electrolyte should splash into the eyes rinse at once  
for several minutes using clear water. Then seek medical care  
immediately. Neutralize any acid splashes on the skin or clothing  
with soap solution, and rinse off with plenty of water. If acid is  
swallowed by mistake, consult a doctor immediately.  
battery.  
• Never use a damaged battery - risk of explosion! Replace a  
damaged battery immediately.  
Caution  
• Never disconnect the car's battery with the engine running or  
with the ignition turned on, otherwise the electrical system or elec-  
trical components will be damaged.  
• Keep open flames, sparks, uncovered lights and lit cigarettes  
away from battery. Avoid sparks (including those from static  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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230  
Checking and topping up fluids  
• Do not expose the battery to direct sunlight over a long period of  
time, as the intense ultraviolet radiation can affect the battery  
housing.  
– Now connect the battery charger to the mains and switch  
on.  
– After charging the battery: switch off the battery charger  
and disconnect the mains cable.  
• If the car is left standing for long periods, protect the battery  
from extreme cold temperature so that it does not “freeze up” and  
become damaged.  
– Now disconnect the charger cables.  
– Refit the red cap onto the positive terminal.  
– Close the bonnet ⇒ page 221.  
Charging the battery  
Terminals for charging the battery are fitted in the engine  
compartment.  
When it is discharged the battery can freeze at temperatures  
around 0°C. A frozen battery must be thawed before charging ⇒  
However, it is advisable to replace the battery if it has frozen,  
because the ice can crack the battery casing and allow the battery  
acid to escape.  
.
Charging the battery  
Important: Before you charge the battery make sure you read the  
manufacturer's instructions for using the battery charger.  
Fig. 217 Engine  
When charging with a low current (for instance with a small battery  
charger) the battery does not have to be disconnected. The battery  
must not be opened while you are charging it.  
compartment: Termi-  
nals for jump leads and  
battery charger  
Fast-charging the battery  
– Note the warnings ⇒  
in “Important safety warnings  
for handling a car battery” on page 229 and ⇒  
.
For technical reasons it is not permissible to fast-charge the battery  
using charging devices with an output voltage higher than 14.8 V.  
– Switch off all electrical equipment. Remove the ignition  
key.  
WARNING  
– Open the bonnet ⇒ page 220.  
Never charge a frozen battery – it could explode.  
– Open the red cap on the positive terminal ⇒ fig. 217.  
– Follow the correct procedure for connecting the charger  
cables to the jump-start terminals (terminal with red cap  
= “positive”, terminal with hexagon = “negative”).  
Note  
Use only the terminals in the engine compartment to charge the  
battery.  
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Checking and topping up fluids  
231  
Replacing the battery  
Windscreen washer  
A replacement battery must have the same specifications  
as the original equipment battery.  
Plain water on its own is not sufficient for the windscreen  
washer system.  
Your vehicle is equipped with an intelligent power management  
system to control the distribution of electrical energy ⇒ page 192.  
The power management function ensures that the battery is  
charged much more efficiently than on vehicles without a power  
management system. For this additional power to be available after  
replacing the battery, we recommend that the replacement battery  
used is of the same make and type as the original-equipment  
battery. The battery must be encoded in the control unit for power  
management. This has to be done by a qualified workshop.  
Fig. 218 Engine  
compartment: Wind-  
screen washer  
container  
A replacement battery must have the same capacity, voltage (12 V)  
and current rating. It must also have the same dimensions as the  
original, factory-fitted battery and have sealed caps. The battery  
must comply with the standards TL 825 06 (dated December 1997 or  
later) and VW 7 50 73 (August 2001 or later).  
The container for the windscreen washer contains the cleaning  
fluid for the windscreen and the headlight washer system*  
⇒ fig. 218. Container capacity: ⇒ page 279.  
Plain water on its own is not enough to clean the glass properly. It  
is therefore advisable to add a suitable washer fluid additive (with  
wax solvent) to the water. A washer fluid with freeze-resistant addi-  
tive should be used in winter.  
Caution  
• Make sure that the vent hose is always attached to the opening  
on the side of the battery. Gases or battery acid can otherwise  
escape and possibly cause damage.  
• The battery holder and clamps must always be correctly secured.  
• Before starting any work on the battery, always observe the  
warnings listed under ⇒ page 229, “Important safety warnings for  
handling a car battery”.  
Caution  
• Never put in radiator anti-freeze or other additives.  
• Never use washer fluid which contains paint thinners or solvents  
as it can damage the paintwork.  
For the sake of the environment  
Batteries contain toxic substances including sulphuric acid and  
lead. They must be disposed of appropriately and must not be put  
together with ordinary household waste. Make sure the battery  
removed from the vehicle cannot tip over. Otherwise, sulphuric acid  
could escape.  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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232  
Wheels and tyres  
Wheels and tyres  
Concealed damage  
Wheels  
Damage to tyres and rims is often not readily visible. If you notice  
unusual vibration or the car pulling to one side, this may indicate  
that one of the tyres is damaged. Reduce speed immediately if there  
is any reason to suspect that damage may have occurred. Inspect  
the tyres for damage. If no external damage is visible, drive slowly  
and carefully to the nearest qualified workshop and have the car  
inspected.  
General notes  
– When driving with new tyres, be especially careful during  
the first 500 km.  
– If you have to drive over a kerb or similar obstacle, drive  
very slowly and as near as possible at a right angle to the  
kerb.  
Tyres with directional tread pattern  
An arrow on the tyre sidewall indicates the direction of rotation on  
tyres with directional tread. Always note the direction of rotation  
indicated when mounting the wheel. This guarantees optimum grip  
and helps to avoid aquaplaning, excessive noise and wear.  
– Inspect the tyres regularly for damage (cuts, cracks or  
blisters, etc.). Remove any foreign bodies embedded in  
the treads.  
– Damaged wheels and tyres must be replaced immedi-  
ately.  
Tyre service life  
Correct inflation pressures and sensible driving habits  
will increase the service life of your tyres.  
– Keep grease, oil and fuel off the tyres.  
– Replace any missing valve caps as soon as possible.  
– Mark the wheels before taking them off so that they  
rotate in the same direction when put back.  
– When removed, the wheels or tyres should be stored in a  
cool, dry and preferably dark place.  
New tyres  
Fig. 219 Open driver's  
door (LHD vehicle) with  
sticker listing tyre  
New tyres do not give maximum grip straight away and should  
therefore be “run in” by driving carefully and at moderate speeds for  
about the first 500 km. This will also help to make the tyres last  
longer.  
inflation pressures  
– Check the tyre pressures at least once a month.  
The tread depth of new tyres may vary, according to the type and  
make of tyre and the tread pattern.  
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Wheels and tyres  
233  
Wheel balancing  
– The tyre pressures should only be checked when the  
tyres are cold. The slightly raised pressures of warm tyres  
must not be reduced.  
The wheels on new vehicles are balanced. However, various factors  
encountered in normal driving can cause them to become unbal-  
anced, which results in steering vibration.  
– The pressures must be altered to suit major changes in  
the load being carried.  
Unbalanced wheels should be rebalanced, as they otherwise cause  
excessive wear on steering, suspension and tyres. A wheel must  
also be rebalanced when a new tyre is fitted or if a tyre is repaired.  
– Avoid fast cornering and hard acceleration.  
– Inspect the tyres for irregular wear from time to time.  
Incorrect wheel alignment  
Incorrect wheel alignment causes excessive tyre wear, impairing the  
safety of the vehicle. If you notice excessive tyre wear, contact your  
Audi dealer.  
Tyre pressure and vehicle loading  
The tyre pressure must be adjusted according to the load the vehicle  
is carrying. We recommend adhering to the tyre pressure specifica-  
tions for a maximum load. The tyre inflation pressures are listed on  
a sticker on the end face of the driver's door ⇒ page 232, fig. 219.  
WARNING  
However, if you prefer an extra-smooth ride and the vehicle is not  
fully loaded, you can select the tyre pressure for a normal load (no  
more than three people travelling in the vehicle). However, should  
you wish to drive with a full load you must increase the tyre pressure  
to the specified maximum.  
• Always adapt the tyre pressure accordingly when the vehicle  
load changes.  
• Under-inflated tyres flex more and can overheat at continuous  
high speeds. This can cause tread separation and tyre blow-out,  
which could result in an accident.  
Under-inflation or over-inflation will reduce the life of the tyres  
considerably and also impair the car's handling. Correct inflation  
pressures are very important, especially at high speeds. The pres-  
sures should therefore be checked at least once a month and before  
starting a journey.  
For the sake of the environment  
Under-inflated tyres will increase the fuel consumption.  
Do not forget the spare wheel* when checking the tyre pressures.  
Keep the spare tyre inflated to the highest pressure required for the  
road wheels.  
Driving habits  
Fast cornering, heavy acceleration and hard braking (squealing  
tyres) all increase tyre wear.  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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234  
Wheels and tyres  
Tread wear indicators  
WARNING (continued)  
The tread wear indicators show the condition of the tyre  
treads.  
aquaplaning in deep puddles of water and when driving through  
corners. Braking is also adversely affected.  
• The speed has to be adapted accordingly, otherwise there is a  
risk of losing control over the vehicle.  
Changing wheels round  
Fig. 220 Tyre tread:  
Tread wear indicators  
The original tyres on your vehicle have 1.6 mm high “tread wear  
indicators” ⇒ fig. 220 running across the tread. Depending on the  
make, there will be 6 to 8 of them spaced at equal distances around  
the tyre. Markings on the tyre sidewall (for instance the letters “TWI”  
or a triangle) indicate the positions of the tread wear indicators.  
Fig. 221 Changing  
wheels round  
The minimum tread depth required by law in Germany is 1.6 mm  
(measured in the tread grooves next to the tread wear indicators).  
Other specifications may apply in export countries.  
To ensure that the wear is equal on all tyres the wheels should be  
changed round from time to time according to the system  
⇒ fig. 221. All the tyres will then last for about the same time.  
WARNING  
Replacing wheels and tyres  
To avoid putting safety at risk, the tyres must be replaced at the  
latest when the tread is worn down to the tread wear indicators.  
It is important to use the correct wheels and tyres when  
replacement is necessary.  
• Especially in difficult driving conditions such as wet or icy  
roads, it is important that the tyres have sufficient tread depth.  
The tread depth should same on the tyres of both the front and the  
rear axles.  
– All four wheels must be fitted with tyres of the same type,  
size (rolling circumference) and preferably the same  
tread pattern.  
• The decrease in driving safety due to insufficient tread depth is  
– If possible, tyres should be replaced at least in pairs and  
not individually (i.e. both front tyres or both rear tyres  
together).  
particularly evident in vehicle handling, when there is a risk of  
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Wheels and tyres  
235  
means, for example, that the tyre was produced in the 10th week of  
2006.  
– Never use tyres whose actual size exceeds the dimen-  
sions of the factory-approved makes of tyre.  
Please note that with some types of tyres, the actual tyre size can  
differ from the nominal size marked on the tyre (for instance 245/40  
R 18 93 Y), and there may be significant differences in the contours  
of the tyres, even though the tyres are marked with the same  
nominal size designation. When replacing the tyres, it is therefore  
important to make sure that the actual size of the new tyres does  
not exceed the dimensions of the factory-approved makes of tyre.  
– If you wish to fit the vehicle with non-standard rims or  
tyres, it is advisable to consult an Audi dealer before  
purchasing them.  
The tyres and wheel rims are an essential part of the vehicle's  
design. The tyres and rims approved by Audi are specially matched  
to the characteristics of the vehicle and make a major contribution  
Failure to observe this requirement can affect the clearance needed  
for the tyres. This could result in contact between the tyres and  
suspension components or bodywork. The brake lines could also be  
to good roadholding and safe handling ⇒  
.
The sizes of the rims and tyres approved for your vehicle are listed  
in the vehicle's documents (e.g. EC Certificate of Conformity or COC  
damaged and the vehicle's safety could be severely impaired ⇒  
When using tyres with the maximum permitted nominal dimen-  
sions, this can also void the vehicle's registration.  
.
5)  
document ). The vehicle documents vary depending on the  
country of residence.  
Understanding the tyre designations makes it easier to choose the  
correct tyres. For example, radial ply tyres have the following tyre  
designations marked on the sidewall:  
If you use tyres that are approved by Audi you can be sure that the  
actual tyre dimensions will be correct for your vehicle. If you decide  
to fit a different type of tyre, you must obtain the appropriate manu-  
facturer's certificate from the tyre retailer to confirm that the tyres  
are suitable for your vehicle. Keep this certificate in a safe place.  
245 / 40 R 18 93 Y  
This contains the following information:  
Your local Audi dealer will be able to advise you on which tyres may  
be fitted to your vehicle.  
245  
40  
R
Tyre width in mm  
Height/width ratio in %  
Tyre construction: Radial  
Rim diameter in inches  
Load rating code  
All four wheels must always be fitted with tyres of the same type,  
make and tread pattern, otherwise the drive-line can be damaged by  
the constant differences in wheel speeds. For the same reason, only  
use a spare wheel* with the same tyre dimensions as the normal  
road wheels.  
18  
93  
Y
It the spare tyre* is not the same type as the tyres fitted on the car  
(for example if the car has winter tyres or wide-section tyres) you  
should only use the spare tyre if a puncture occurs, and then only  
for a short period of time. In this case, please drive with extra care.  
Refit the normal road wheel as soon as possible.  
Speed rating code letter  
The manufacturing date is also indicated on the tyre sidewall  
(possibly only on the inner side of the wheel):  
DOT ... 1006...  
It is best to have all servicing of wheels and tyres performed by a  
qualified workshop. They have the necessary special tools and  
5)  
COC = certificate of conformity  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
document_0900452a81793dcc.book Seite 236 Mittwoch, 21. März 2007 5:42 17  
236  
Wheels and tyres  
replacement parts, trained personnel and facilities for disposing of  
the old tyres.  
Wheel bolts  
The wheel bolts are designed to suit the rims on your car.  
The wheel bolts are matched to the rims. When installing different  
wheels (for instance wheels with winter tyres) it is important to use  
the correct wheel bolts with the right length and correctly shaped  
bolt heads. This is essential for the secure fit of the wheels and for  
the proper function of the brake system.  
WARNING  
• It is very important to ensure that the tyres you have chosen  
have adequate clearance. When selecting replacement tyres, do  
not rely entirely on the nominal tyre size marked on the tyre; with  
some makes of tyre the effective tyre size can differ significantly  
from the nominal dimensions, even though the tyres have the  
same size designation. Inadequate tyre clearance can result in  
damage to the tyres or the vehicle, causing a serious safety risk. It  
may also invalidate the vehicle's type approval for use on public  
roads.  
Audi dealers have full information on the technical requirements  
when installing or changing tyres, rims or wheel trims.  
The wheel bolts should be clean and turn easily.  
A special adapter is required to turn the anti-theft wheel bolts*  
⇒ page 254.  
• Please ask your Audi dealer or qualified workshop whether run  
flat tyres can be used on your vehicle. Unauthorised use of these  
tyres can invalidate the vehicle's type approval for use on public  
roads. Furthermore, this could cause damage to your vehicle and  
possibly also result in an accident.  
Winter tyres  
Winter tyres will significantly improve the car's handling  
in winter road conditions.  
• Avoid running the car on tyres that are more than 6 years old.  
If you have no alternative, you should drive slowly and with extra  
care at all times.  
– Use only radial ply winter tyres.  
– Winter tyres must be fitted on all four wheels.  
– Only use winter tyres of the correct type approved for  
your vehicle.  
For the sake of the environment  
Old tyres must be disposed of according to the laws in the country  
concerned.  
– Please note that the maximum permissible speed for  
winter tyres may be lower than for summer tyres.  
Note  
– Also note that winter tyres are no longer effective when  
• Never mount used tyres if you are not sure of their previous  
the tread is worn down.  
history.  
– After fitting the wheels you must always check the tyre  
pressures. The correct tyre pressures are listed on the  
sticker on the end face of the driver's door.  
• For technical reasons it is not normally possible to use wheel  
rims from other vehicles. In some cases this also applies to rims  
from other vehicles of the same model.  
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Wheels and tyres  
“All-weather” tyres can also be used instead of winter tyres.  
237  
In winter road conditions winter tyres will considerably improve the  
car's handling. Due to their type of construction (width, rubber  
compound, tread pattern), summer tyres give less grip on ice and  
snow. This applies particularly to vehicles equipped with wide  
section tyres or high speed tyres (code letters H, V or Y on the side-  
wall).  
Using winter tyres with V-rating  
Please note that the generally applicable 240 km/h speed rating for  
winter tyres with the letter "V" is subject to technical restrictions;  
the maximum permissible speed for your vehicle may be signifi-  
cantly lower. The maximum speed limit for tyres with a V-rating  
depends directly on the maximum axle weights for your car and on  
the listed weight rating of the tyres being used.  
Only use winter tyres of the correct type approved for your vehicle.  
The sizes of the winter tyres approved for your vehicle are listed in  
the vehicle's documents (e.g. EC Certificate of Conformity or COC  
6)  
It is best to contact an Audi dealer to check the maximum speed  
which is permissible for the V-rated tyres fitted on your car on the  
basis of this information.  
document ). The vehicle documents vary depending on the  
country of residence. Also refer to ⇒ page 234.  
Winter tyres are no longer fully effective when the tread is worn  
down to a depth of 4 mm.  
WARNING  
The performance of winter tyres is also severely impaired by ageing,  
even if the tread is still much deeper than 4 mm.  
Exceeding the maximum speed permitted for the winter tyres  
fitted on your car can cause tyre failure, resulting in a loss of  
control of the vehicle – risk of accident.  
Winter tyres are subject to the following maximum speed limits  
according to speed rating code letter: ⇒  
Speed rating code letter Maximum speed limit  
⇒ page 234  
For the sake of the environment  
Summer tyres should be fitted again as soon as possible; they give  
better handling on roads which are free of snow and ice. Summer  
tyres produce less rolling noise, do not wear down as quickly and,  
most importantly, reduce fuel consumption.  
Q
S
T
160 km/h  
180 km/h  
190 km/h  
210 km/h  
H
V
Snow chains  
240 km/h  
Snow chains will improve the vehicle's handling on snow-  
covered roads.  
(note restrictions)  
In Germany vehicles capable of exceeding these speeds must have  
an appropriate sticker attached so it is visible to the driver. Suitable  
stickers are available from Audi dealers and specialist retailers.  
Please note regulations to this effect in your country.  
– Snow chains can be used on the front wheels only.  
– Keep your speed below 50 km/h.  
Snow chains will improve braking ability as well as traction in winter  
conditions.  
6)  
COC = certificate of conformity  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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238  
Wheels and tyres  
For technical reasons snow chains may only be used on tyres with  
certain wheel rim/tyre combinations.  
Rim size  
8.5Jx18  
Rim offset  
29 mm  
Tyre size  
245/40  
8.0Jx18  
31 mm  
225/45  
Only use snow chains with fine-pitch links. The links must not  
protrude more than 13.5 mm from the tyres (including tensioner).  
Remove the chains when roads are free of snow. Otherwise they will  
impair handling, damage the tyres and wear out very quickly.  
where snow chains are compulsory on certain roads, this normally  
also applies to cars with four-wheel drive. Snow chains may only be  
fitted to the front wheels (also on vehicles with four-wheel drive).  
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Accessories and modifications to the vehicle  
239  
Accessories and modifications to the vehicle  
Accessories and replacement parts  
WARNING  
Always ask your dealer or specialist retailer for advice  
before purchasing accessories and replacement parts.  
Never attach accessories (such as cup holders or telephone  
brackets) to the surfaces covering the airbag units or the areas  
around the airbags: this could cause injury if the airbag is  
triggered.  
Your car is designed to offer a high standard of active and passive  
safety. For this reason, we recommend that you ask an Audi dealer  
for advice before fitting accessories or replacement parts. Audi  
dealers have the latest information from the manufacturer and can  
recommend accessories and replacement parts which are suitable  
for your requirements. They can also answer any questions you  
might have regarding official regulations.  
Modifications  
Modifications must always be carried out according to  
our specifications.  
We recommend you to use only Audi accessories and Audi Genuine  
®
Unauthorised modifications to the electronic components or soft-  
ware in the vehicle may cause malfunctioning. Due to the way the  
electronic components are linked together in networks, other  
systems may be affected by the faults. This can seriously impair  
safety, lead to excessive wear of components, and also invalidate  
the type approval for your vehicle.  
parts . Audi has tested these parts and accessories for suitability,  
reliability and safety. Audi dealers have the necessary experience  
and facilities to ensure that the parts are installed properly.  
Although the market is constantly scrutinised, Audi cannot judge or  
assume responsibility for the reliability, safety and suitability of  
non-genuine products - even though in some instances, these parts  
may have been approved by an officially recognised technical  
testing authority or accompanied by an official approval certificate.  
You will appreciate that your Audi dealer cannot be held liable for  
any damage caused by modifications and/or work performed incor-  
rectly.  
Any retro-fitted equipment which has a direct effect on the vehicle  
and/or the way it is driven (e.g. cruise control system or electroni-  
cally-controlled suspension) must be approved for use in your  
vehicle and bear the e mark (the European Union's approval  
symbol).  
We recommend that all work should be performed by an Audi work-  
shop using Audi Genuine parts  
®
.
WARNING  
If any additional electrical components are fitted which do not serve  
to control the vehicle itself (for instance a refrigerator box, laptop or  
ventilator fan, etc.), these must bear the CE mark (manufacturer  
conformity declaration in the European Union).  
Incorrectly performed modifications or other work on your vehicle  
can lead to malfunctions and cause accidents.  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
document_0900452a81793dcc.book Seite 240 Mittwoch, 21. März 2007 5:42 17  
240  
Accessories and modifications to the vehicle  
driver's immediate control of the vehicle. Any such equipment must  
carry the CE mark. Any retrofit equipment that could influence the  
driver's control of the vehicle must have a type approval for your  
vehicle and must carry the e mark.  
Radio transmitters and business  
equipment  
Radio transmitters (fixed installation)  
Retrofit installations of radio transmitters in the vehicle are subject  
to official approval. Audi generally authorises in-vehicle installa-  
tions of approved types of radio transmitters provided that:  
WARNING  
Mobile telephones or radio equipment which are operated inside  
the vehicle without a correctly installed external aerial can create  
excessive magnetic fields that could cause a health hazard.  
• the aerial is installed correctly,  
• the aerial is not installed in the interior of the vehicle (and  
screened cables are used together with non-reflective aerial trim-  
ming),  
Note  
• the effective transmitting power does not exceed 10 Watts at the  
• Any retrofit installation of electrical or electronic equipment in  
the vehicle will affect its type approval. In extreme cases this could  
mean that you might lose the type approval for your vehicle.  
aerial base.  
Audi dealers and specialist retailers will be able to inform you about  
options for installing and operating radio transmitters with a higher  
transmitting power.  
• Please refer to the mobile telephone/radio operating  
instructions.  
Mobile radio transmitters  
When using commercial mobile telephones or radio equipment it is  
possible that they might interfere with the electronics of your  
vehicle and cause malfunctions. The reasons could be:  
• no external aerial  
• external aerial incorrectly installed  
• transmitting power more than 10 W.  
Therefore you must not operate portable mobile telephones or radio  
equipment inside the vehicle without a correctly installed external  
aerial ⇒  
.
Please note also that the maximum range of the equipment can only  
be achieved with an external aerial.  
Business equipment  
Retrofit installation of business or other equipment in the vehicle is  
permitted, provided the equipment cannot interfere with the  
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Accessories and modifications to the vehicle  
241  
Controls  
Safety  
Driving tips  
General maintenance  
Self-help  
Technical data  
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242  

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