2025-2026 Audi A5 4 Door Checking and Filling User Manual
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Checking and Filling for Your Audi A5 4 Door Third Generation (2025-2026)

Checking and Filling  
Checking and Filling  
Fuel  
Note  
Filling the tank just one time with leaded  
fuel or other metallic additives will cause  
permanent deterioration to the catalytic  
converter function.  
Types of gasoline  
The correct gasoline grade is stated on the inside  
of the fuel filler door.  
When gasoline with an octane rating that is  
too low is used, high speeds or heavy engine  
load can lead to engine damage.  
The vehicle is equipped with a catalytic converter  
and must only be driven with unleaded gasoline.  
Tips  
Audi recommends using TOP TIER Detergent Gas-  
oline. For additional information on TOP TIER De-  
The vehicle may be filled with fuel that has a  
higher octane rating than what is required by  
the engine.  
The individual gasoline grades are differentiated  
by octane ratings. This value is given with  
(R+M)/2 equating to AKI or in RON.  
Gasoline mixture  
Gasoline with alcohol (ethanol)  
The headings below match the sticker in the fuel  
filler door (examples):  
You can fuel your vehicle with unleaded gasoline  
that has an ethanol content of up to 15%, for ex-  
ample “E15”.  
UNLEADED FUEL ONLY MIN. (R+M)/2 87  
Regular / MIN. RON 91 Regular  
Gasoline adapted to the season  
Use regular gasoline with minimum 87 AKI /  
91 RON ð  
.
Many gasoline fuels are adapted to the seasons.  
When the season changes, refueling at high-traf-  
fic gas stations is recommended. It is more likely  
that the gasoline will be suitable for the season  
there.  
Audi recommends using premium gasoline with  
minimum 91 AKI / 95 RON to achieve the rated  
horsepower and torque.  
UNLEADED FUEL ONLY PREMIUM MIN.  
(R+M)/2 91 / SUPER MIN. RON 95  
Note  
Using premium gasoline with minimum 91 AKI /  
95 RON is recommended.  
Do not use gasoline that does not meet the  
specifications.  
Ethanol fuels with a high ethanol percent-  
age, such as E30 – E100, must not be used.  
The fuel system will be damaged!  
Methanol fuels with a high methanol per-  
centage, such as M5 – M100, must not be  
used. The fuel system and the engine will be  
damaged!  
If premium gasoline is not available, you can also  
use regular gasoline 87 AKI / 91 RON. However  
this does reduce the engine power slightly.  
UNLEADED FUEL ONLY PREMIUM MIN.  
(R+M)/2 93 / SUPER PLUS MIN. RON 98  
Using premium plus gasoline with at least 93  
AKI / 98 RON is recommended.  
If you are unable to find out if a specific gas-  
oline mixture meets the specifications, ask  
the gas station operator or their fuel suppli-  
er.  
If no premium plus gasoline is available, you can  
also use premium gasoline with 91 AKI / 95 RON.  
However this does reduce the engine power  
slightly.  
Do not use any gasoline mixture whose  
composition cannot be identified.  
Audi does not assume any responsibility for  
damage to the fuel system or for perform-  
ance problems caused by using gasoline  
234  
Checking and Filling  
mixtures different from those specified.  
This type of damage also does not fall under  
the New Vehicle Limited Warranty or under  
the emissions control system warranty.  
If you notice a higher fuel consumption or  
poor handling or performance problems due  
to such gasoline mixtures, Audi recom-  
mends fueling with unblended gasoline.  
There is a malfunction in the fuel tank system.  
Drive to an authorized Audi dealer or authorized  
Audi Service Facility immediately to have the  
malfunction corrected.  
Fueling procedure  
Gasoline additives  
An important issue for many automobile manu-  
facturers is combustion residue in the engine  
that results from the use of certain fuels.  
Although types of gasoline differ depending on  
the manufacturer, there are similarities. Certain  
substances in the gasoline may cause deposits in  
the engine. Additives in the gasoline that should  
keep the engine and fuel system clean do not all  
function equally.  
Fig. 156 Right rear side of the vehicle: opening the fuel  
filler door  
Audi recommends using TOP TIER Detergent Gas-  
oline. For additional information on TOP TIER De-  
If you use incorrect fuels over a long period of  
time, the maximum engine performance may be  
impaired by combustion residue.  
Fig. 157 Fuel filler door with attached fuel cap  
Note  
The fuel filler door is unlocked or locked by the  
central locking system.  
Damage or malfunctions caused by the use  
of incorrect types of gasoline are not cov-  
ered by the New Vehicle Limited Warranty.  
Only gasoline additives that have been ap-  
proved by Audi may be used.  
Unlock the vehicle if necessary.  
Press on the left side of the fuel filler door to  
open it ðfig. 156.  
Unscrew the tank cap counterclockwise.  
Place the cap from above on the open fuel filler  
door ðfig. 157.  
Insert the fuel pump nozzle all the way into the  
fuel filler neck.  
Begin fueling. Once the fuel pump nozzle turns  
off the first time, the fuel tank is full. Do not  
continue fueling, or else the expansion space in  
the tank will be filled with fuel.  
After the fuel pump has turned off, wait five  
seconds before removing the nozzle to allow  
the rest of the fuel to finish dripping into the  
fuel tank.  
Refueling  
Messages  
The following messages may appear, depending  
on the vehicle equipment:  
Messages  
If the indicator light appears with a corre-  
sponding message, refuel the vehicle.  
Tank system: malfunction! Please contact  
Service  
235  
Checking and Filling  
Turn the fuel cap clockwise until it clicks into  
place.  
Close the fuel filler door and then press on the  
left side until it latches.  
ing an accident. This can cause explosions,  
fires, and injuries.  
If you must transport fuel in a fuel contain-  
er, note the following:  
Always place the fuel container on the  
ground before filling. Never fill the fuel  
container with fuel while it is inside or on  
the vehicle. Electrostatic discharge can oc-  
cur while refueling and the fuel vapors  
could ignite.  
The correct fuel type for your vehicle can be  
found on a label located on the inside of the fuel  
filler door. For additional information on fuel, see  
ðpage 234.  
For the tank capacity in your vehicle, refer to the  
Technical Data ðpage 308.  
When using fuel containers made of met-  
al, the fuel pump nozzle must always re-  
main in contact with the container to re-  
duce the risk of static charge.  
To reduce the risk of fuel leaking out or vapors  
escaping, make sure that the fuel tank is closed  
1)  
correctly. Otherwise the  
turn on.  
indicator light will  
Insert the fuel pump nozzle as far as possi-  
ble into the filler opening while refueling.  
Follow the applicable legal regulations in  
the country where you are driving when  
using, storing and transporting fuel con-  
tainers.  
WARNING  
Improper fueling procedures and improper  
handling of fuel can result in explosions, fires,  
severe burns, and other injuries.  
Make sure that the fuel container meets  
the industry standards, for example ANSI  
or ASTM F852-86.  
Do not smoke. Keep away from open flames.  
The ignition must be turned off when refuel-  
ing.  
Mobile devices, radio devices, and other ra-  
dio equipment should always be turned off  
when refueling. Electromagnetic rays could  
cause sparks and start a fire.  
Note  
Remove fuel that has overflowed onto any  
vehicle components immediately to reduce  
the risk of damage to the vehicle.  
If you do not insert the fuel pump nozzle all  
the way into the filler tube, then fuel can  
leak out. Spilled fuel can ignite and start a  
fire.  
Never drive until the fuel tank is completely  
empty. The irregular supply of fuel that re-  
sults from that can cause engine misfires.  
Uncombusted fuel may enter the exhaust  
system and increase the risk of damage to  
the catalytic converter.  
Never get into the vehicle when refueling. If  
there is an exceptional situation where you  
must enter the vehicle, close the door and  
touch a metal surface before touching the  
fuel pump nozzle again. This will reduce the  
risk of electrostatic discharge that can cause  
flying sparks. Sparks can start a fire when  
refueling.  
For the sake of the environment  
Do not overfill the fuel tank, or fuel could  
leak out when the vehicle is warming up.  
Fuel should never enter the sewer system or  
come into contact with the ground.  
WARNING  
Tips  
Audi does not recommend transporting fuel  
containers inside the vehicle. Fuel could leak  
out of the container and ignite, especially dur-  
The fuel filler door on your vehicle does not  
lock if you lock the vehicle from the inside us-  
ing the central locking switch.  
1)  
Depending on the engine and country  
236  
Checking and Filling  
Manually releasing the fuel filler door  
Malfunction Indicator Lamp (MIL)  
See an authorized Audi dealer or authorized  
Audi Service Facility if you cannot open the fuel  
filler door.  
Afterward, drive to an authorized Audi dealer or  
authorized Audi Service Facility to have the  
malfunction corrected.  
If the  
indicator light blinks or turns on, there  
is a malfunction related to emissions which can,  
for example, cause poor emissions quality and  
damage to the catalytic converter. Drive slowly to  
an authorized Audi dealer or authorized Audi  
Service Facility to have the malfunction correct-  
ed.  
Emissions control  
system  
The indicator light can also turn on if the fuel fill-  
1)  
er cap is not closed correctly ðpage 235  
.
General information  
Engine compartment  
WARNING  
General information  
The temperature of the exhaust system is  
high, both when driving and after stopping  
the engine.  
Special care is required if you are working in the  
engine compartment  
For work in the engine compartment, such as  
checking and filling fluids, there is a risk of in-  
jury, scalding, accidents, and burns. For this  
reason, follow all the warnings and general  
safety precautions provided in the following in-  
formation. The vehicle's engine compartment is  
Never touch the exhaust tail pipes once they  
have become hot. This could result in burns.  
Do not park your vehicle over flammable  
materials such as grass or leaves because  
the high temperature of the emissions sys-  
tem could start a fire.  
a dangerous area. ð  
.
Do not apply underbody protectant in the  
exhaust system area, because this increases  
the risk of fire.  
Explanation of warning symbols:  
Observe all warnings - there is a risk for  
injury!  
Catalytic converter  
Hot engine components!  
Rotating parts!  
Observe the safety precautions ðpage 237, Gen-  
eral information.  
The radiator fan can turn on at any time!  
.
The vehicle may only be driven with unleaded  
gasoline, or the catalytic converter will be de-  
stroyed.  
High voltage! Turn off the engine before  
coming into contact with any ignition  
system components!  
Never drive until the tank is completely empty.  
The irregular supply of fuel that results from that  
can cause engine misfires. Uncombusted fuel  
could enter the exhaust system, which could  
cause overheating and damage to the catalytic  
converter.  
The catalytic converter can be damaged  
if the oil level is too high!  
Hot coolant - there is a risk of scalding!  
Always follow the instructions in the  
Owner’s Manual.  
1)  
Depending on the engine and country  
237  
Checking and Filling  
To protect your face, hands, and arms from  
hot steam or coolant, cover the cap with a  
thick cloth when opening.  
WARNING  
The engine/motor compartment in any motor  
vehicle is a potentially dangerous area and  
can cause serious personal injury.  
Do not remove the engine cover under any  
circumstances. This increases the risk of  
burns.  
Always use extreme caution when doing any  
work in the engine compartment. Always  
follow commonly accepted safety practices  
and use common sense. Never risk personal  
injury.  
Due to the risk of electric shock, never touch  
the ignition cable or other components in  
the electronic high-voltage ignition system  
when the engine is running or is starting.  
If a position is selected while the vehicle is  
stationary and the engine is running, do not  
press the accelerator pedal inadvertently.  
Pressing the accelerator pedal will cause the  
vehicle to move, and this could result in an  
accident.  
Never perform any work in the engine com-  
partment unless you know exactly how to  
carry out the job and have the correct tech-  
nical information and the correct tools.  
If you are uncertain about what to do, have  
the work performed by an authorized Audi  
dealer, an authorized Audi Service Facility,  
or another qualified workshop. Serious per-  
sonal injury may result from work that is not  
performed correctly.  
If inspections or repairs must be performed  
while the engine is running, moving compo-  
nents (such as the ribbed belt, generator,  
and radiator fan) pose an additional risk.  
Set the parking brake first and select the  
“P” (Park) position.  
WARNING  
Turn off the engine.  
Always make sure that no parts of the  
body, jewelry, ties, loose clothing, and  
long hair can be caught in moving engine  
components. Before any work, always re-  
move any jewelry and/or ties, tie back long  
hair, and make sure all clothing fits close  
to the body to reduce the risk of anything  
becoming caught in engine components.  
Pay attention to the following warnings list-  
ed when work on the fuel system or on the  
electrical equipment is required.  
Turn off the ignition.  
Set the parking brake.  
Select the “P” (Park) position.  
Allow the engine to cool.  
Keep children away from the engine com-  
partment.  
Never spill fluids on a hot engine. These flu-  
ids (such as the freeze protection contained  
in the coolant) can catch fire.  
Avoid short circuits in the electrical system.  
Never reach into the radiator fan. The fan is  
temperature-controlled and can turn on  
suddenly, even when the ignition is turned  
off.  
Do not smoke.  
Never work near open flames.  
Always have a working fire extinguisher  
nearby.  
Never open the hood when there is steam or  
coolant escaping from the engine compart-  
ment, because there is a risk that you could  
be burned. Wait until no steam or coolant is  
escaping.  
All work on the battery or electrical system  
in your vehicle can result in injuries, chemi-  
cal burns, accidents, or burns. Because of  
this, all work must be performed only by an  
authorized Audi dealer or authorized Audi  
Service Facility.  
The cap on the coolant expansion tank must  
never be opened when the coolant is hot.  
The cooling system is under pressure. There  
is a risk of burns  
Limit your exposure to exhaust and chemi-  
cals to as short a time as possible.  
238  
Checking and Filling  
WARNING  
California Proposition 65 Warning:  
Engine exhaust, some of its constituents,  
and certain vehicle components contain or  
emit chemicals known to the State of Cali-  
fornia to cause cancer and birth defects and  
reproductive harm. In addition, certain flu-  
ids contained in vehicles and certain prod-  
ucts of component wear contain or emit  
chemicals known to the State of California  
to cause cancer and birth defects or other  
reproductive harm.  
Fig. 159 Unlocked hood: lever  
Observe the safety precautions ðpage 237, Gen-  
eral information.  
Battery posts, terminals and related acces-  
sories contain lead and lead compounds,  
chemicals known to the State of California  
to cause cancer and reproductive harms.  
Wash hands after handling.  
Make sure the wiper arms are not raised up from  
the windshield. Otherwise the paint could be  
damaged.  
Opening the hood  
1)  
With the door open, pull the lever below  
Note  
the instrument panel in the direction of the ar-  
When filling fluids, be sure not to add any flu-  
ids to the wrong reservoirs. Otherwise severe  
malfunctions and engine damage will occur.  
row ðfig. 158.  
Raise the hood slightly ð  
Press the lever ðfig. 159 in the direction of the  
arrow. This releases the hooks.  
Open the hood.  
.
For the sake of the environment  
You should regularly check the ground under  
your vehicle in order to detect leaks quickly. If  
there are visible spots from oil or other fluids,  
bring your vehicle to an authorized Audi deal-  
er or authorized Audi Service Facility to be  
checked.  
Closing the hood  
Push the hood down until you override the  
force of the struts.  
Let the hood fall lightly into the latch. Do not  
press it in. ð  
.
Messages  
Opening and closing the hood  
The following messages may appear, depending  
on the vehicle equipment:  
The hood is released from inside the vehicle.  
Warning! Hood is not locked. Stop vehicle  
and check the lock  
The hood latch is not locked correctly. Stop im-  
mediately and close the hood.  
WARNING  
Never open the hood when there is steam or  
coolant escaping from the engine compart-  
ment, because there is a risk that you could  
Fig. 158 Footwell: release lever  
1)  
The symbol is not available in all countries.  
239  
Checking and Filling  
be burned. Wait until no steam or coolant is  
escaping.  
hood is latched if the front corners cannot  
be lifted.  
For safety reasons, the hood must always be  
latched securely while driving. Because of  
this, always check the hood after closing it  
to make sure it is latched correctly. The  
If you notice that the hood is not latched  
while you are driving, stop immediately and  
close it, because driving when the hood is  
not latched increases the risk of an accident.  
Engine compartment overview  
The most important check points.  
Fig. 160 Engine compartment overview: diagram  
Observe the safety precautions ðpage 237, Gen-  
eral information.  
6
Brake fluid reservoir () ðpage 247  
The coolant expansion tank and the engine oil  
filling opening may be located in different places  
within the engine compartment, depending on  
the engine version.  
1
2
Washer fluid reservoir () ðpage 252  
Jump start points: (+) under a cover, (-)  
ground point ðpage 251, Charging the 12  
volt vehicle battery ðpage 291, Jump start-  
ing  
3
4
5
Engine oil filler opening () ðpage 242,  
Checking the engine oil level  
Sticker for engine oil specifications  
ðpage 241  
Coolant expansion tank () (depending on  
the engine) ðpage 246  
240  
Checking and Filling  
Engine oil  
Tips  
Audi recommends using engine oils provided  
by Audi Genuine Parts.  
If the engine oil level is too low  
Messages  
The following messages may appear, depending  
on the vehicle equipment:  
Turn off engine. Oil pressure too low  
Stop driving and turn off the engine. Check the  
engine oil level ðpage 242.  
Fig. 161 Engine oil sticker  
If the engine oil level is too low, add engine oil  
ðpage 243. Only continue driving once the in-  
dicator light turns off.  
1 Engine oil viscosity  
2 Engine oil standard  
If the engine oil level is correct and the indica-  
tor light still turns on, turn the engine off and  
do not continue driving. See an authorized Audi  
dealer or authorized Audi Service Facility for as-  
sistance.  
If you need to add engine oil, use an oil that  
meets the engine oil standard listed on the stick-  
er ðfig. 161. The sticker with the specified  
standard is located in the front of the engine  
compartment ðpage 240, fig. 160. When using  
the specified engine oil, you can adjust the oil  
level as often as needed.  
Applies to: vehicles with oil level warning  
Please add oil immediately  
Stop driving and turn off the engine. Check the  
engine oil level ðpage 242 and add engine oil  
immediately ðpage 243.  
If engine oil that meets the recommended speci-  
fication is not available, in an emergency you  
may add a maximum of 0.5 quart (0.5 liter) en-  
gine oil of the that meets the following different  
standard one time until the next regular oil  
change.  
Please add max. x qt (x l) oil. You can contin-  
ue driving  
Add the amount of oil shown immediately  
Standard VW 504 00, ACEA C3, ACEA C4,  
API SP or ILSAC GF-6A. All viscosity classes  
within these standards are permitted.  
ðpage 243.  
Please reduce oil level  
Audi recommends having the oil changed by an  
authorized Audi dealer or authorized Audi Service  
Facility.  
There is too much oil in the engine and there is a  
risk of damaging the catalytic converter or en-  
gine. Drive to an authorized Audi dealer or au-  
thorized Audi Service Facility immediately to have  
engine oil extracted if necessary. Avoid high en-  
gine speeds, full acceleration, and heavy engine  
loads.  
Note  
Audi recommends using approved engine oil  
that meets the respective VW standard. Using  
engine oils which do not meet these quality  
standards can cause damage to the engine. As  
an exception and only in an emergency, 0.5 qt  
(0.5 l) of engine oil that differs from the  
standards listed may be used.  
Oil level sensor: oil change necessary. Please  
contact Service  
Fuel has entered the engine oil. This will cause  
the engine oil level to rise slowly and the engine  
oil quality to decrease. Do not extract engine oil  
to reduce the level, because this will increase the   
241  
Checking and Filling  
risk of engine damage. Drive to an authorized  
Audi dealer or authorized Audi Service Facility im-  
mediately to have engine oil extracted.  
Checking the engine oil level  
The engine oil level can be checked in the MMI.  
Observe the safety precautions ðpage 237, Gen-  
eral information.  
Oil level system: malfunction! Please con-  
tact Service  
Park the vehicle on a level surface.  
Shut the engine off when it is warm.  
Turn only the ignition on again.  
Wait approximately five minutes so that the en-  
The sensor that checks the engine oil level has  
malfunctioned. Drive immediately to an author-  
ized Audi dealer or authorized Audi Service Facili-  
ty to have the malfunction corrected.  
gine oil can flow back into the engine oil pan.  
Applies to MMI: Select on the home screen: VE-  
HICLE > Settings & Service > Oil level.  
Oil pressure sensor: malfunction! Please  
contact Service  
Read the oil level in the display. Add engine oil  
if the bar in the oil level indicator is just below  
“min” ðpage 243.  
The sensor that checks the engine oil pressure  
has malfunctioned. Drive immediately to an au-  
thorized Audi dealer or authorized Audi Service  
Facility to have the malfunction corrected.  
Note  
Please drive to warm up engine  
If the engine oil level is too low or too high,  
there is a risk of engine damage.  
Especially low outside temperatures are a main  
reason why fuel may get into the engine oil. The  
fuel can only evaporate from the engine oil if the  
engine oil temperature is high enough.  
Tips  
The oil level indicator in the display is only an  
informational display. If the oil level is too  
low, a minimum oil warning appears in the in-  
strument cluster. Add oil and close the hood.  
The current oil level will be displayed on the  
MMI the next time the ignition is turned on.  
Drive in the “S” position.  
Drive the engine at higher RPMs while avoiding  
full acceleration.  
You should drive for at least 30 minutes. The in-  
dicator light may not turn off during this time.  
Repeat the steps that are described at any time.  
Tips  
The engine oil consumption may be up to  
0.5 quart/600 miles (0.5 liter/1,000 km), de-  
pending on driving style and operating condi-  
tions. In RS models, the oil consumption may  
be up to 0.8 qt/600 mi (0.8 L/1,000 km).  
Consumption may be higher during the first  
3,000 miles (5,000 km). The engine oil level  
must be checked regularly. It is best to check  
each time you refuel your vehicle and before  
long drives.  
Have an authorized Audi dealer or authorized  
Audi Service Facility repair the malfunction if the  
indicator light does not turn off after a few  
drives.  
WARNING  
When the message Please drive to warm  
up engine appears, adjust your speed accord-  
ing to the weather, road, terrain, and traffic  
conditions. You should never disobey the traf-  
fic laws applicable in the country in which you  
are driving in order to follow driving recom-  
mendations.  
Because of the lubrication and cooling of  
the engine, combustion engines consume  
oil. The oil consumption varies depending  
on the engine and may change during the  
service life of the engine. Engines generally  
consume more oil at the beginning during  
the break-in period. Then oil consumption  
stabilizes after the break-in period.  
Tips  
The oil pressure warning  
is not an oil level  
indicator. Always check the oil level regularly.  
242  
Checking and Filling  
Under normal conditions, oil consumption  
depends on the quality and viscosity of the  
oil, the engine RPM, the climate conditions,  
and the road conditions. The dilution of oil  
from condensation or fuel residue as well as  
the age of the oil also play a role. Because  
engine wear increases with mileage, oil con-  
sumption will increase again over time until  
it may be necessary to replace worn compo-  
nents.  
Turn off the engine.  
Open the hood ðpage 239.  
Unscrew the cap for the engine oil filler  
opening ðfig. 162.  
Carefully add 0.5 quart (0.5 liter) of the correct  
oil ðpage 241.  
Close the engine oil filler opening cap.  
Close the hood ðpage 239.  
Restart the ignition after two minutes and read  
the current oil level in the MMI ðpage 242.  
Applies to: using engine oil that meets the rec-  
ommended specification: Add some more en-  
gine oil again if necessary.  
Because all these variables play a role, it is  
not possible to define an oil consumption  
standard. Therefore, the oil level must be  
checked regularly.  
If you believe that your engine has increased  
its oil consumption, contact an authorized  
Audi dealer or authorized Audi Service Fa-  
cility to determine the cause. Please note  
that an exact oil consumption measurement  
must be done with the necessary care and  
accuracy and may take time. An authorized  
Audi dealer or authorized Audi Service Fa-  
cility is trained in accurately measuring the  
oil consumption.  
WARNING  
When adding oil, do not let oil drip onto hot  
engine components. This increases the risk  
of a fire.  
You must close the cap on the oil filler open-  
ing correctly so that oil does not leak out on-  
to the hot engine and exhaust system when  
the engine is running, because this is a fire  
hazard.  
Always clean skin thoroughly if it comes into  
contact with engine oil.  
You can find information on engine oil and  
engine oil capacities for the USA at www.  
audiusa.com/help/maintenance, or for Can-  
customer-area/care-and-maintenance/  
audi-service-schedules.html, or call  
800-822-2834.  
Engine oil is poisonous and must be kept out  
of reach of children.  
Store the engine oil securely in the original  
container.  
Note  
Only use high-grade engine oil that explicit-  
ly meets the Audi oil quality standard for  
your vehicle. Using another oil may cause  
severe vehicle damage.  
Adding engine oil  
Do not mix any additives with the engine oil.  
Additives may cause engine damage that is  
not covered by your New Vehicle Limited  
Warranty.  
For the sake of the environment  
Oil should never enter the sewer system or  
come into contact with the ground.  
Follow the legal regulations in the country  
where you are located when disposing of  
empty oil containers.  
Fig. 162 Engine compartment: engine oil filling opening  
cover (example)  
Observe the safety precautions ðpage 237, Gen-  
eral information.  
243  
Checking and Filling  
Changing engine oil  
Drain the oil into a container designed for  
this purpose that is large enough to hold the  
full amount of oil in your engine.  
Audi recommends having the oil changed at an  
authorized Audi dealer or authorized Audi Serv-  
ice Facility.  
Engine oil is poisonous. Always store out of  
reach of children.  
Observe the safety precautions ðpage 237, Gen-  
eral information.  
Prolonged contact of used engine oil with  
the skin may cause skin damage. Always  
wash oil off immediately with soap and wa-  
ter to protect your skin.  
The engine oil must be changed at the intervals  
specified in the Warranty & Maintenance Book-  
let. This is very important because the lubrication  
function of the oil gradually declines during regu-  
lar vehicle operation.  
Note  
Do not mix any additives with the engine oil.  
Additives may cause engine damage that is  
not covered by your New Vehicle Limited War-  
ranty.  
The engine oil should be changed more frequent-  
ly under certain circumstances. Have the oil  
changed more frequently if you often drive short  
distances, your vehicle is predominantly in stop-  
and-go traffic situations, is in very dusty environ-  
ments, or is operated for long periods of time in  
temperatures below zero.  
For the sake of the environment  
Before changing the engine oil, make sure  
you can dispose of the used engine oil cor-  
rectly.  
Cleansing additives in the oil make fresh oil ap-  
pear darker after the engine has run briefly. This  
is normal and no reason to change the engine oil  
more frequently than recommended.  
Engine oil must always be disposed of cor-  
rectly. Do not dump it in the yard, in the for-  
est, or in open water, river channels, or sew-  
ers.  
Have your used engine oil recycled by bring-  
ing it to a used oil collection site or contact  
a gas station.  
Because correctly disposing of engine oil is diffi-  
cult and special tools and technical knowledge  
are needed for an oil change, Audi recommends  
having your engine oil changed by an authorized  
Audi dealer or authorized Audi Service Facility.  
Cooling system  
If you change the engine oil yourself, please note  
the following important information:  
Coolant  
The engine cooling system is filled with a mixture  
of purified water and coolant additive at the fac-  
tory. This coolant must not be not changed.  
WARNING  
If you change the engine oil on the vehicle  
yourself, the following precautions must be  
followed:  
The coolant level is monitored using the indi-  
cator light. However, you should occasionally  
check the coolant level.  
Wear protective eyewear.  
Due to the risk of scalding, allow the engine  
to cool down sufficiently.  
Messages  
The following messages may appear, depending  
on the vehicle equipment:  
Maintain enough distance when you are re-  
moving the oil drain plug. While doing this,  
keep your forearm parallel to the ground to  
reduce the risk of hot oil dripping down your  
arm.  
Turn off engine and check coolant level. See  
owner's manual  
The coolant level is too low.  
244  
Checking and Filling  
Do not continue driving and turn off the ignition.  
Check the coolant level ðpage 246.  
for the climate. This is especially important  
when driving in colder climates.  
If the G12evo coolant additive is not availa-  
ble in an emergency, do not add any other  
additive. You could damage the engine. If  
this happens, only use distilled water and  
restore the correct mixture ratio with the  
specified coolant additive as soon as possi-  
ble.  
If the coolant level is too low, add coolant  
ðpage 246. Only continue driving once the in-  
dicator light turns off.  
Coolant temperature: too high. Please let  
engine run while vehicle is stationary  
Let the engine run at idle for a few minutes to  
cool off, until the indicator light turns off.  
Only refill with new coolant.  
Radiator sealant must not be mixed with  
the coolant.  
If the indicator light does not turn off, do not  
continue driving the vehicle. See an authorized  
Audi dealer or authorized Audi Service Facility  
for assistance.  
You can continue driving if the permitted  
G12evo coolant additive was not added.  
However, go to an authorized Audi dealer or  
authorized Audi Service Facility immediately  
to have the coolant replaced to reduce the  
risk of engine damage.  
Coolant system: malfunction! Please turn  
off engine  
Do not continue driving, shut off the engine, and  
turn off the ignition. See an authorized Audi deal-  
er or authorized Audi Service Facility for assis-  
tance.  
Due to the risk of engine damage, the cool-  
ing system should only be refilled by an au-  
thorized Audi dealer or authorized Audi  
Service Facility. An authorized Audi dealer or  
authorized Audi Service Facility can also pro-  
vide you with important information about  
the recommended coolant additive.  
Coolant additive  
The coolant additive is made of anti-freezing and  
corrosion protection agents. Only add the follow-  
ing coolant additives mixed with distilled water.  
Coolant additive  
G12evo  
Specification  
TL 774 L  
The amount of coolant additive that needs to be  
mixed with water depends on the climate where  
the vehicle will be operated. If the coolant addi-  
tive percentage is too low, the coolant can freeze  
and damage the engine.  
Coolant  
additive  
Freeze protec-  
tion  
Warm  
regions  
min. 40%  
max. 45%  
min. -13 °F  
(-25 °C)  
Cold  
regions  
min. 50%  
max. 55%  
max. -40 °F  
(-40 °C)  
Note  
Before the start of winter, have an author-  
ized Audi dealer or authorized Audi Service  
Facility check if the coolant additive in your  
vehicle matches the percentage appropriate  
245  
Checking and Filling  
be between the markings 2 when the engine is  
cold. When the engine is warm it can be slight-  
ly above the upper marking.  
Checking coolant  
If you must add coolant, use a mixture of water  
and coolant additive. Audi recommends mixing  
the coolant additive with distilled water.  
Allow the engine to cool ð  
Place a large, thick towel on the coolant expan-  
sion tank cap.  
.
Push the release button 1 ðfig. 163 on the  
cap and carefully turn it to the left until you  
Fig. 163 Engine compartment - coolant expansion tank  
feel resistance ð  
Push the release button again and remove the  
cap completely.  
Requirement for adding coolant: there must be  
a residual amount of coolant in the expansion  
.
(diagram):  
1
cover with release button;  
2
coolant expan-  
sion tank markings( 4-cylinder engine)  
tank ð  
.
Add the correct mixture ratio of coolant  
ðpage 245 up to the upper marking  
ðfig. 163.  
2
Make sure that the fluid level remains stable.  
Add more coolant if necessary.  
Turn the cap to the right to tighten it until you  
feel resistance a second time.  
Fig. 164 Coolant expansion tank markings (6-cylinder en-  
gine)  
Checking the coolant level/adding coolant  
(2)  
Applies to: vehicles with coolant expansion tank in the ple-  
num chamber  
Observe the safety precautions ðpage 237, Gen-  
eral information.  
Depending on the version of the engine, the cool-  
ant expansion tank will be located in the engine  
compartment ðpage 246, Checking the coolant  
level/adding coolant (1) or in the plenum cham-  
ber under a cover ðpage 246, Checking the cool-  
ant level/adding coolant (2):  
In vehicles with a 6-cylinder engine, the coolant  
expansion tank is located under a cover in the  
plenum chamber ðpage 240, fig. 160.  
Park the vehicle on a level surface.  
Turn off the ignition.  
Allow the engine to cool ð  
Open the hood ðpage 239.  
Remove the cover that is located under the  
windshield wiper on the front passenger's side.  
Place a large, thick towel on the coolant expan-  
sion tank cap.  
.
Checking the coolant level/adding coolant  
(1)  
Applies to: vehicles with coolant expansion tank in the engine  
compartment  
In vehicles with a 4-cylinder engine, the coolant  
expansion tank is located in the engine compart-  
ment ðpage 240, fig. 160.  
Push the release button 1 ðfig. 163 on the  
cap and carefully turn it to the left until you  
feel resistance ð  
.
Park the vehicle on a level surface.  
Push the release button again and remove the  
cap completely.  
There is a float located in the coolant expansion  
tank. Read the coolant level using the coolant  
level float ðfig. 164. When the engine is cold,  
the float must be located between the MIN  
Turn off the ignition.  
Open the hood ðpage 239.  
Check the coolant level in the coolant expan-  
sion tank ðpage 240, fig. 160 using the outer  
markings 2 ðfig. 163. The coolant level must  
246  
Checking and Filling  
marking and the edge of the filler opening  
(MAX) on the coolant expansion tank  
ðfig. 164. When the engine is warm, the float  
can also be slightly above MAX.  
If the coolant level is correct, turn the cap to  
the right to tighten it until you feel resistance a  
second time, and then reinstall the cover below  
the windshield wiper.  
If you must add coolant, use a mixture of water  
and coolant additive. Audi recommends mixing  
the coolant additive with distilled water.  
Requirement for adding coolant: there must be  
a residual amount of coolant in the expansion  
Note  
Coolant loss that results in the coolant expan-  
sion tank becoming nearly empty primarily in-  
dicates that there are significant leaks in the  
cooling system, which can lead to further  
damage.  
Do not add coolant if the expansion tank is  
empty. Air could enter the cooling system  
and increase the risk of damage. If this is  
the case, do not continue driving. See an au-  
thorized Audi dealer or authorized Audi  
Service Facility for assistance.  
If there is any coolant remaining, add addi-  
tional coolant. Drive to an authorized Audi  
dealer or authorized Audi Service Facility  
immediately to have the malfunction cor-  
rected. If the indicator light turns on  
again, do not continue driving and turn off  
the ignition. See an authorized Audi dealer  
or authorized Audi Service Facility for assis-  
tance.  
tank ð  
.
Add coolant in the correct mixture ratio  
ðpage 245 until the float is positioned at the  
edge of the filler opening on the coolant expan-  
sion tank (= MAX) ðfig. 164.  
Make sure that the fluid level remains stable.  
Add more coolant if necessary.  
Turn the cap to the right to tighten it until you  
feel resistance a second time, and then rein-  
stall the cover below the windshield wiper.  
If there is too much coolant in the expan-  
sion tank after adding coolant, drive to an  
authorized Audi dealer or authorized Audi  
Service Facility as soon as possible to have  
the coolant level corrected.  
WARNING  
The engine/motor compartment in any vehi-  
cle is a potentially dangerous area. Shut off  
the engine, turn off the ignition, and allow  
the engine to cool before working in the en-  
gine compartment. Always follow the infor-  
mation found in ðpage 237, General infor-  
mation.  
Using non-distilled water increases the risk  
of engine damage. Its chemical components  
may cause significant corrosion damage in  
the engine.  
If you had to add a large amount of non-dis-  
tilled water (more than 0.5 liter), then im-  
mediately drive to an authorized Audi dealer  
or authorized Audi Service Facility to have  
the coolant changed.  
Never open the hood if you can see or hear  
steam or coolant escaping from the engine  
compartment. This increases the risk of  
burns. The cooling system is under pressure.  
When you no longer see or hear steam or  
coolant escaping, you may open the engine  
compartment with caution.  
Brake fluid  
When working in the engine compartment,  
remember that the radiator fan can turn on  
even if the ignition is turned off, which in-  
creases the risk of injury.  
Coolant additive and coolant can be danger-  
ous to your health. For this reason, store the  
coolant in the original container and away  
from children. There is a risk of poisoning.  
Fig. 165 Engine compartment: cap on brake fluid reservoir  
247  
Checking and Filling  
Observe the safety precautions ðpage 237, Gen-  
eral information.  
an authorized Audi dealer or authorized  
Audi Service Facility. If this brake fluid is not  
available, another high-grade brake fluid of  
equivalent quality may be used, and it must  
meet the U.S. Federal Motor Vehicle Stand-  
ard (FMVSS) 116 DOT 4, Class 6.  
Checking the brake fluid level  
The brake fluid reservoir is located under a cover  
on the driver’s side.  
Reusing brake fluid or using brake fluid that  
is not permitted for your vehicle will signifi-  
cantly impair the braking performance and  
can even result in a failure of the brake sys-  
tem. The manufacturer of the vehicle is not  
liable for failures or damage resulting from  
this. It will also not be covered by the war-  
ranty.  
Park the vehicle on a level surface.  
Lift the cover ðpage 240, fig. 160 at both  
openings and remove it.  
Read the brake fluid level on the brake fluid  
reservoir ðpage 240, fig. 160. The brake fluid  
level must be between the MIN and MAX mark-  
ings ð  
.
The brake fluid level is monitored automatically.  
Note  
Messages  
If the brake fluid level is above the MAX  
marking, brake fluid may leak out over the  
edge of the reservoir and result in damage  
to the vehicle.  
The following messages may appear, depending  
on the vehicle equipment:  
 / Brakes: stop vehicle and check brake  
fluid level  
Do not allow any brake fluid to come into  
contact with the vehicle paint, because it  
will corrode the paint.  
Stop the vehicle and check the brake fluid level.  
See an authorized Audi dealer or authorized Audi  
Service Facility for assistance.  
Electrical system  
Changing the brake fluid  
The following messages may appear, depending  
on the vehicle equipment:  
Brake fluid should be changed at regular inter-  
vals. Have the brake fluid changed by an author-  
ized Audi dealer or authorized Audi Service Facili-  
ty. The authorized Audi dealer or authorized Audi  
Service Facility will inform you of the replace-  
ment intervals.  
If the  
/
or  
indicator light turns on,  
there is a malfunction in the power supply, the  
battery, or the vehicle electrical system.  
/
Electrical system: malfunction! Safely  
stop vehicle  
WARNING  
Safely stop your vehicle, do not continue driving,  
and turn off the ignition ð . See an authorized  
Audi dealer or authorized Audi Service Facility for  
assistance.  
If the brake fluid level is below the MIN  
marking, it can impair the braking effect and  
driving safety, which increases the risk of an  
accident. Do not continue driving. See an au-  
thorized Audi dealer or authorized Audi  
Service Facility for assistance.  
Electrical system: malfunction! Restart not  
possible. Please contact Service  
If the brake fluid is old, bubbles may form in  
the brake system during heavy braking. This  
could impair braking performance and driv-  
ing safety, which increases the risk of an ac-  
cident.  
If you turn off the ignition, you will not be able to  
restart the vehicle. Vehicle functions or driving  
stability may be limited. Drive to an authorized  
Audi dealer or authorized Audi Service Facility im-  
mediately.  
The brake fluid in your vehicle must meet  
the standard VW 501 14 and is available at  
248  
Checking and Filling  
Not running the vehicle for long periods of  
time  
Electrical system: malfunction! Please con-  
tact Service  
The battery will gradually drain if the vehicle  
does not run for long periods of time. To ensure  
that the vehicle can still be started, the electrical  
equipment will be limited or turned off. Some  
convenience functions, such as interior lighting  
or power seat adjustment, may not be available  
under certain circumstances. The convenience  
functions will be available again when you start  
the engine.  
Turn off all electrical equipment that is not need-  
ed. If necessary, some equipment will be turned  
off automatically. Vehicle functions or driving  
stability may be limited. Drive to an authorized  
Audi dealer or authorized Audi Service Facility im-  
mediately.  
Electrical system: low battery charge. Bat-  
tery will be charged while driving  
The starting ability may be impaired.  
Even when electrical equipment is turned off, the  
equipment can still drain the battery if the vehi-  
cle is not driven for long periods of time. Deep  
draining results in a chemical reaction that de-  
stroys the inside of the battery. The battery must  
be charged every month to prevent this  
ðpage 251. Contact an authorized Audi dealer or  
authorized Audi Service Facility for more infor-  
mation.  
If this message turns off after a little while, the  
vehicle battery has charged enough while driv-  
ing.  
If the message does not turn off, drive immedi-  
ately to an authorized Audi dealer or authorized  
Audi Service Facility to have the malfunction  
corrected.  
WARNING  
Winter operation  
When there is an electrical system malfunc-  
tion, vehicle functions may not work and driv-  
ing stability may be limited, which increases  
the risk of an accident. Do not continue driv-  
ing and turn off the ignition. See an author-  
ized Audi dealer or authorized Audi Service Fa-  
cility for assistance.  
Cold weather places an especially high load on  
the 12 volt vehicle battery. Have the battery  
checked by an authorized Audi dealer or author-  
ized Audi Service Facility before cold weather be-  
gins.  
Replacing the battery  
Applies to: 12 volt vehicle battery  
Battery  
All work on the battery must only be performed  
by an authorized Audi dealer or authorized Audi  
Service Facility.  
Battery general information  
Because of the complex power supply, all work  
on batteries such as disconnecting, replacing,  
etc., should only be performed by an authorized  
Audi dealer or authorized Audi Service Facility  
The 12 volt vehicle battery was developed based  
on the installation location and is equipped with  
safety features. If a 12 volt vehicle battery must  
be replaced, ask an authorized Audi dealer or au-  
thorized Audi Service Facility about the electro-  
magnetic compatibility, size, and the necessary  
maintenance, power, and safety standards for  
the new 12 volt vehicle battery. The battery vent  
on the 12 volt vehicle battery must always be on  
the negative terminal side. The battery vent on  
the positive terminal side must always be closed.  
ð
.
Multiple batteries with different technologies  
may be installed in your vehicle:  
Vehicle battery (for example, for starting the  
engine, basic power supply) ðpage 250, Safety  
precautions  
Auxiliary battery (for example, for recuperation  
or optional equipment) ðpage 250, Safety pre-  
cautions  
When replacing the 12 volt lead-acid vehicle bat-  
tery, only use a maintenance-free 12 volt lead-  
acid battery that conforms to the TL 825 06 and  
249  
Checking and Filling  
VW 7 50 73 standards. These standards must be  
from October 2014 or newer.  
and become damaged ðpage 251, Charg-  
ing the 12 volt vehicle battery.  
There are electrical components under the  
cargo floor behind a trim panel that warm  
up during operation. To reduce the risk of  
the components overheating, do not store  
objects such as blankets under the cargo  
floor. If the components overheat, they will  
turn off temporarily. This will be indicated  
by a message that will be displayed in the  
instrument cluster until the temperature re-  
turns to normal.  
WARNING  
All work on the battery or electrical system  
in your vehicle can result in injuries, chemi-  
cal burns, accidents, or burns. Because of  
this, all work must be performed only by an  
authorized Audi dealer or authorized Audi  
Service Facility.  
Always have an authorized Audi dealer or  
authorized Audi Service Facility replace the  
12 volt vehicle battery, because an adapta-  
tion must be performed on the vehicle elec-  
trical system when the battery is replaced.  
Only an authorized Audi dealer or author-  
ized Audi Service Facility has the necessary  
technology to perform the adaption correct-  
ly. Otherwise, there could be a loss of safe-  
ty-related functions among other things,  
which increases the risk of an accident.  
Using a 12 volt vehicle battery that does not  
match the same specifications and dimen-  
sions as the factory-installed 12 volt vehicle  
battery can result in short circuits or cause a  
fire. Serious injuries or death may result.  
Only use maintenance-free and leak-proof  
12 volt vehicle batteries that match the  
same specifications and dimensions as the  
factory-installed 12 volt vehicle battery.  
Never connect a charging cable or jump  
start cable directly to the 12 volt vehicle  
battery. Only use the connections in the en-  
gine compartment ðpage 251.  
Always have an authorized Audi dealer or  
authorized Audi Service Facility replace the  
12 volt vehicle battery, because an adapta-  
tion must be performed on the vehicle elec-  
trical system when the battery is replaced.  
Only an authorized Audi dealer or author-  
ized Audi Service Facility has the necessary  
technology to perform the adaption correct-  
ly.  
Using a vehicle battery that does not meet  
the AUDI AG quality specifications or with a  
capacity that is too low will void the vehi-  
cle’s certification for use on public roads,  
and this will void the vehicle registration  
ð
.
For the sake of the environment  
Batteries and electrical/electronic devices  
must be disposed of in an environmentally  
safe manner ðpage 310, Disposal instruc-  
tions.  
Safety precautions  
WARNING  
Explanation of warning symbols:  
California Proposition 65 Warning:  
Battery posts, terminals and related acces-  
sories contain lead and lead compounds,  
chemicals known to the State of California  
to cause cancer and reproductive harms.  
Wash hands after handling.  
Observe all warnings - there is a risk for in-  
/ Always follow the instructions in the Own-  
jury!  
er’s Manual.  
12 volt vehicle battery. Energized compo-  
nents. Improper handling can result in  
short circuits ð in Battery general in-  
formation on page 250.  
Note  
If the vehicle will be parked for long periods  
of time, protect the 12 volt vehicle battery  
against the cold so that it will not “freeze”  
250  
Checking and Filling  
With the exception of charging the 12 volt  
vehicle battery and jump starting, all oth-  
er procedures involving the 12 volt vehicle  
battery must be performed by an author-  
ized Audi dealer or authorized Audi Serv-  
ice Facility ð in Battery general infor-  
mation on page 250 ð in Battery gen-  
eral information on page 250.  
Note  
Applies to: mild hybrid drive  
Components must not be connected to the  
battery terminals and wires on the 48 volt  
battery because this increases the risk of  
damage, for example due to overvoltage.  
Have maintenance work performed only by  
trained personnel.  
Electrolyte fluid is highly corrosive. Always  
wear protective gloves and eye protection.  
First aid: if electrolyte fluid enters the  
eyes, immediately flush with clean water  
for several minutes. Seek medical atten-  
tion immediately. Immediately neutralize  
electrolyte fluid on the skin or clothing us-  
ing a soap solution and rinse with plenty  
of water. Seek medical attention immedi-  
ately if electrolyte fluid is ingested.  
Have the 48 volt lithium battery replaced  
only by an authorized Audi dealer or author-  
ized Audi Service Facility. Audi recommends  
an authorized Audi dealer or authorized  
Audi Service Facility, because these loca-  
tions have trained personnel and the re-  
quired parts and tools.  
Never try to replace the 48 volt lithium bat-  
tery yourself. The 48 volt lithium battery in  
this vehicle may only be replaced with a 48  
volt lithium battery designed by Audi specif-  
ically for this vehicle. Using other 48 volt  
lithium or lead batteries will result in con-  
siderable malfunctions or even total failure  
of the electrical system.  
Always wear eye protection.  
If electrolyte fluid enters the eyes, imme-  
diately flush with clean water for several  
minutes. Seek medical attention immedi-  
ately.  
Never make modifications to the lithium  
battery.  
Fire, sparks, open flame, and smoking are  
prohibited. Avoid creating sparks and  
short circuits when handling cables and  
electrical devices.  
Never open the 48 volt battery.  
Charging the 12 volt vehicle battery  
Always keep children away from battery  
electrolyte fluid and the battery.  
A highly explosive mixture of gases can  
form when charging batteries.  
WARNING  
All work on the batteries must only be per-  
formed by an authorized Audi dealer or au-  
thorized Audi Service Facility.  
Gases that escape from these batteries can  
be poisonous or flammable.  
Fig. 166 Engine compartment: connectors for a charger or  
jump start cables  
The contents of these batteries can be corro-  
sive. If any battery contents come into con-  
tact with the skin, flush the affected area  
with clean water for at least 15 minutes.  
Then wash the affected area with soap. Have  
the affected area examined by a medical  
professional.  
Observe the safety precautions ðpage 237, Gen-  
eral information, ð  
in Battery general infor-  
mation on page 250 and ð  
.
Requirement: only use chargers with a maximum  
charging current of 14.8 volts. The battery ca-  
bles remain connected.  
251  
Checking and Filling  
The charging cable connections are located in the  
Tips  
engine compartment. The ground point  
ways located on the vehicle body.  
is al-  
Read all of the manufacturer's instructions  
for the charger before charging the battery.  
Turn off the ignition and all electrical equip-  
ment.  
Windshield washer  
system  
Open the hood ðpage 239.  
Press the release lever on the positive terminal  
and fold the cover upward ðfig. 166.  
Clamp the terminal clamps on the charger cor-  
rectly onto the positive terminal  
+
and the  
ground point .  
Insert the power cable for the charger into the  
socket and turn on the charger.  
Keep the hood completely open during the  
charging session ð  
.
At the end of the charging session, turn off the  
charger and pull the power cable out of the  
socket.  
Fig. 167 Engine compartment: washer fluid reservoir cap  
Remove the charger terminal clamps.  
Close the cover on the positive terminal.  
Close the hood ðpage 239.  
Observe the safety precautions ðpage 237, Gen-  
eral information.  
The windshield washer fluid reservoir contains  
the cleaning solution for the windshield and the  
headlight washer system* ðpage 240. The reser-  
voir capacity can be found in ðpage 308.  
WARNING  
Never use charging equipment that is un-  
suitable, visibly damaged, and/or dirty.  
Check the charging equipment for damage  
before every use.  
To reduce the risk of lime scale deposits on the  
spray nozzles, use clean water with low amounts  
of calcium. Always add window cleaner to the wa-  
ter. When the outside temperatures are cold, an  
anti-freezing agent should be added to the water  
so that it does not freeze.  
Never connect a charging cable or jump  
start cable directly to the 12 volt vehicle  
battery. Only use the connections in the en-  
gine compartment ðpage 251.  
A highly explosive mixture of gases can form  
when charging batteries. Only charge the  
battery in well-ventilated areas.  
Messages  
The following messages may appear, depending  
on the vehicle equipment:  
A drained battery can freeze at tempera-  
tures around 32 °F (0 °C). Do not charge or  
use a frozen or thawed battery. If ice forms,  
the battery housing can crack and battery  
electrolyte fluid can leak, which increases  
the risk of an explosion and chemical burns.  
Contact an authorized Audi dealer or author-  
ized Audi Service Facility for more informa-  
tion.  
Please add washer fluid  
Fill the washer fluid for the windshield washer  
system and the headlight washer system* when  
the ignition is turned off.  
Note  
The concentration of anti-freezing agent  
must be adjusted to the vehicle operating  
conditions and the climate. A concentration  
that is too high can result in vehicle dam-  
age.  
Leave the hood open while the 12 volt vehi-  
cle battery is charging. If the hood is closed,  
it could cause an electrical short circuit,  
which increases the risk of fire.  
252  
Checking and Filling  
Never add radiator anti-freeze or other addi-  
tives to the washer fluid.  
Note  
Only reset the oil change indicator if the oil  
was changed.  
Do not use a glass cleaner that contains  
paint solvents, because this could damage  
the paint.  
Regular service work on the vehicle is not  
only beneficial for sustainable use of the ve-  
hicle and retention of its value, but also for  
operational and traffic safety. For this rea-  
son, always have service work performed ac-  
cording to the Audi guidelines.  
Service interval display  
The service interval display detects when your ve-  
hicle is due for service.  
Even if the mileage on the vehicle is low, do  
not exceed the time for the next service.  
Audi is not responsible for damage to the  
vehicle that occurred due to inadequate  
service or insufficient part availability.  
The service interval display works in two stages:  
Inspection or oil change reminder: after driv-  
ing a certain distance, a message appears in the  
instrument cluster display each time the igni-  
tion is turned on or off. The remaining distance  
or time is displayed briefly.  
Inspection or oil change due: if your vehicle  
has reached an inspection or oil change interval  
or both intervals at the same time, the mes-  
sage Inspection due! or Oil change due! or Oil  
change and inspection due! appears briefly af-  
ter turning the ignition on or off.  
Checking service intervals  
You can check the remaining distance or time un-  
til the next oil change or next inspection in the  
Infotainment system.  
Applies to MMI: Select on the home screen: VEHI-  
CLE > Settings & Service > Service intervals.  
Resetting the indicator  
An authorized Audi dealer or authorized Audi  
Service Facility will reset the service interval dis-  
play after performing service.  
If you have changed the oil yourself, you must re-  
set the oil change interval.  
Applies to: MMI: To reset the display, select on  
the home screen: VEHICLE > Settings & Service >  
Service intervals.  
WARNING  
Inadequate service, a lack of service, or failing  
to adhere to the service intervals can result in  
the vehicle breaking down in traffic, acci-  
dents, and serious injuries.  
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