Get Check and replace -> In the engine compartment Guide for Volkswagen Touareg SUV Third Generation (2018-2025)

– You will have to apply the brakes much

harder, as the brake servo does not work.

Avoid crashing into the towing vehicle.

Check and replace

In the engine compartment

– Observe the information and instructions in

the operating instructions of the vehicle to be

towed.

Safety warnings for work on the

engine compartment

Driver of the towing vehicle:

– Accelerate with special care and caution.

Avoid abrupt manoeuvres.

Always park the vehicle on a firm, level surface

and take all necessary safety precautions before

carrying out any work on the engine

compartment.

– Brake earlier than usual and gently.

– Observe the information and instructions in the

towed

owner's manual of the

vehicle.

The engine compartment of the vehicle is a

hazardous area. Only carry out work on the

engine and engine compartment yourself if you

are familiar with the necessary operations and

generally applicable safety measures and if you

have the correct tools, equipment and operating

Serious injuries can occur

fluids.

if work is

→

.

carried out improperly

If necessary, have

all work carried out by a specialist workshop.

Volkswagen recommends that this work be

carried out by a Volkswagen dealer.

WARNING

Any accidental movement of the vehicle

during maintenance work could cause

serious injury.

● Never work under the vehicle without first

securing it against rolling away. When

working under the vehicle with the wheels

on the ground, the vehicle must be on a

level surface, the wheels must be locked

and the vehicle key must be removed from

the ignition switch.

● If you have to work under the vehicle,

additionally support it securely with suitable

stands. The jack is not suitable for this

purpose and may not be able to withstand

the load, which could result in serious

injury.

● The start-stop system must always be

switched off.

WARNING

The engine compartment of any vehicle is a

dangerous area where serious injuries can

occur!

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313

● When carrying out any kind of work,

always be extremely cautious and prudent

and observe the generally applicable safety

measures. Never put yourself at risk.

● When replenishing operating fluids, avoid

getting them on engine components or the

exhaust system. These fluids could cause

a fire.

● Never carry out work on the engine or

engine compartment unless you are familiar

with the necessary operations. If you are

not sure what needs to be done, have the

necessary work carried out by a specialist

workshop. Failure to carry out the work

properly may result in serious injury.

WARNING

The electrical system is under high voltage and

can cause electric shock, burns, serious injury

and death!

● Never short-circuit the electrical system.

The 12-volt battery could explode.

● Never open or close the engine cowling if

steam or engine coolant is escaping from

the engine compartment. Hot vapour or

coolant can cause severe burns. Always wait

until you no longer see or hear vapour or

coolant escaping from the engine

compartment.

● To reduce the risk of electric shock or

serious injury, observe the following while

the combustion engine is running or when

starting and, on hybrid vehicles, while the

propulsion system is engaged or when it

is switched on:

– Never touch the electrical wiring of the

ignition system.

– Never touch the electrical cables or

electrical connections of gas discharge

lamps.

– On hybrid vehicles, never touch high-

voltage components, the high-voltage

battery or the high-voltage on-board

power supply, especially the orange

high-voltage cables.

● Always wait until the engine has

cooled down before opening the

engine bonnet.

● Touching hot engine or exhaust system

components can cause skin burns.

● When the engine has cooled down, observe

the following before opening the engine

bonnet:

– Engage the electronic parking brake and

move the selector lever to the P

position.

WARNING

There are rotating parts in the engine

compartment which could cause serious injury.

– Switch off the ignition and remove the key

from the ignition lock.

– Always keep children away from the

engine compartment and never leave

them unattended.

● Never reach into the radiator fan or radiator

fan area. Touching the rotor blades can

cause serious injury. The fan is

● When the engine is hot, its cooling system is

under pressure. Never open the cap of the

engine coolant expansion tank when the

engine is hot. Doing so could cause coolant

to splash out and result in serious burns

and other injuries.

– Turn the expansion tank cap slowly and

carefully anticlockwise and at the same

time apply slight pressure to the cap.

temperature-dependent and may start

automatically, even when the ignition is

switched off and the key is out of the

ignition switch.

● If work is to be carried out during

engine start-up or while the engine is

running, be aware that rotating parts

may be damaged.

The high voltage ignition system (e.g. poly

V-belt, alternator or radiator fan) and the

high-voltage ignition system represent a

mortal danger. Always act with the utmost

caution.

– Always protect your face, hands and

arms from hot coolant or steam with a

large, thick cloth.

- Always make sure that no part of the

body, no jewellery or tie, no clothing if

loose-fitting, and no clothing that is too

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Instruction manual

If your hair is long, it may get caught in

the rotating parts of the engine

NOTICE

When replacing or changing operating fluids,

make sure that you use the correct fluids in

the correct filler ports. Using the wrong

operating fluids can lead to serious

malfunctions and engine damage.

compartment. Before working on the

engine compartment, remove any

jewellery or ties you may be wearing, tie

back your hair if it is long, and tie up any

loose clothing to prevent it from getting

caught in engine parts.

- Never press the accelerator pedal

carelessly, but always with the utmost

caution. The vehicle could start to move

even with the electronic parking brake

engaged.

Operating fluids leaking from the vehicle

pollute the environment.

Therefore, look under the vehicle regularly. If

there are operating fluid stains on the floor, take

the vehicle to a specialist workshop and have it

checked. If operating fluid leaks

operational, dispose of it properly.

● Never leave any objects in the engine

compartment, e.g. rags or tools. Such

objects can cause malfunctions, engine

damage and fire.

Preparing the vehicle for engine

compartment work

WARNING

If additional insulating elements (e.g. blankets)

are placed in the engine compartment, this could

prevent the engine from functioning properly,

could cause a fire and could result in serious

injury.

Checklist

Before working on the engine compartment,

always carry out the following operations in the

order given →

Place the vehicle on a firm, level surface, taking

the necessary safety precautions.

:

● Never cover the engine with blankets or

other insulating materials.

WARNING

Operating fluids and some materials in the

engine compartment are highly flammable and

can cause fire and serious injury!

Depress the brake pedal and hold it down until

the ignition is switched off.

Connect the electric parking brake → p. 231.

Move the selector lever to the P position.

→

p. 176.

● Never smoke near the engine compartment.

Switch off the ignition and remove the key

from the ignition lock → p. 168.

Wait for the engine to cool down sufficiently.

Keep children and others away from the

engine compartment at all times.

● Never work near naked flames or

sparks.

● Never pour operating fluids on the engine.

These could ignite on contact with hot

engine parts and cause injury.

Make sure that the vehicle cannot move

unexpectedly.

● When working on the fuel system or the

electrical system, please note the

following:

– Always uncouple the 12-volt battery.

Make sure that the vehicle is unlocked

when uncoupling the 12-volt battery,

otherwise the anti-theft alarm will be

triggered.

WARNING

For your own safety, do not ignore this

important checklist, otherwise serious accidents

and injuries may occur.

● Always follow the instructions in the

checklist and observe the generally

applicable safety measures.

– Never work in the vicinity of heaters,

space heaters or open flames.

● Always have an operational and serviced

fire extinguisher on hand.

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315

If the engine bonnet does not close properly,

raise it again and close it again.

Opening and closing the engine

bonnet

When the bonnet is closed properly, it is flush

with the adjacent body parts. The engine

bonnet is no longer highlighted on the

instrument panel → p. 317 or the display is

switched off.

WARNING

If the engine bonnet is not closed correctly, it

could open unexpectedly while driving and

prevent forward visibility. This can lead to

accidents and serious injury.

● After closing the engine bonnet, make sure

that the lock is properly engaged in the

locking plate. The engine bonnet must be

flush with the adjacent body parts.

Fig. 241 In the footwell on the driver's side: engine

bonnet release lever. On right-hand drive vehicles,

the arrangement is symmetrical.

● If, while driving, you notice that the engine

bonnet is not closed properly, stop the

vehicle immediately and close the bonnet.

● Only open or close the engine bonnet

when no one is in the area of the engine

compartment.

Fig. 242 Above the radiator grille: engine cowling

release lever.

NOTICE

● To prevent damage to the engine bonnet and

wiper arms, open the engine bonnet only

when the wiper is switched off and the wiper

arms are above the windscreen.

Opening the engine bonnet

– Before opening the engine bonnet, make sure

that the windscreen wiper arms are above

● Always place the wiper arms on the glass

before starting to drive

the windscreen →

.

– Open the driver's door and pull the unlocking

lever in the direction of the arrow.

→ fig. 241 . The engine bonnet is released

from the locking mechanism of the locking

plate by the force of a spring →

.

– Lift the bonnet by the opening lever

→ fig. 242 (arrow) and open it fully. The

bonnet is held open by the pressurised gas

spring.

Close the engine bonnet

– Pull the engine bonnet down until the

resistance of the pressurised gas spring

.

→

– Drop the bonnet from a distance of

approx. 30 cm into the locking mechanism

of the locking plate. Do not press it down

afterwards!

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Instruction manual

Do not continue driving! If necessary, raise the

engine bonnet again and close it again.

Indication on the display

The display is also shown when the ignition is

switched off and switches off a few seconds

after the vehicle has been locked with the doors

closed.

WARNING

Ignoring the warning signs displayed may

cause the vehicle to stall in traffic and could

lead to accidents and serious injury.

● Never ignore warning notes.

● Stop the vehicle as soon as safely possible.

Fig. 243 On the instrument panel display: engine

bonnet open or not closed correctly.

The symbolic representation may vary

depending on the version of the control

box.

If the engine bonnet is open or not closed

correctly, this is indicated on the instrument

panel display by a symbolic representation →

fig. 243 .

ments.

Removing and fitting the engine compartment cover

Fig. 244 With the engine cowling open: engine compartment cover.

If the engine compartment cover has to be

removed and fitted, the preparations for work on

the engine compartment → page 313 must first

be observed !

Removing the engine compartment cover

requires a certain amount of manual skill. In

case of uncertainty, Volkswagen therefore

recommends that a Volkswagen dealer should be

consulted for removal.

or seek professional help.

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317

Fitting the engine compartment cover

Legend to fig. 244 : Centre

Carefully press down all the components of the

engine compartment cover at the corresponding

fixing points.

1

2

3

64

cover Right cover Left

cover Housings

Holes for sockets for starting aids

tes → . Before installation, make sure that the

rubber buffers are correctly positioned in the

High-voltage general warning sign.

Engine compartment gasket

4

grooves → fig. 244

.

7

5

3

– Insert the left cover → fig. 244 under the

engine compartment gasket

→ fig. 244

7

4

and press it into the housings

until it clicks into place.

– Insert the right-hand cover → fig. 244

under the engine compartment gasket

2

1

3

2

Engine compartment covers → fig. 244

y

have to be dismantled in the following cases:

→ fig. 244

7

4

and press it into the housings

until it clicks into place.

– Replacement of the left headlamp bulb.

- Fit the centre cover → fig. 244

on the

1

Engine compartment covers → fig. 244

1

y

holes in the opposite direction of the arrow,

insert it under the engine compartment gasket.

have to be dismantled in the following cases:

7

and press it down until

→ fig. 244 to

be fitted.

– Replacement of the right headlamp

bulb

→

p. 295.

– Close the engine bonnet → p age 313.

– Charging of the coolant in the circuit of low

temperature.

NOTICE

Remove the engine compartment cover

To avoid damage to the engine compartment

cover and the engine compartment gasket,

carefully disassemble and assemble the

individual components.

When removing the components from the

engine compartment cover, always carefully

corresponding fixing

pull them out at the

points

→

.

● When removing components, do not jerk or

tilt them.

– Open the engine bonnet → page 313.

● To engage them in the fixing points, press the

components only lightly

1

– Pull the cover → fig . 244

in the

.

direction of the arrow by pressing on the seal

of the opening.

tor

7 slightly to one side.

2

– Pull the cover

upwards by pressing

slightly towards

7

the engine bay gasket

on one side.

3

– Pull the left cover

by pressing the engine

upwards

7

light-

compartment seal to one side.

operative. Volkswagen dealers are always

informed in good time of any changes.

Liquids and operating media

All fluids and operating media, such as tyres,

WARNING

engine coolant or vehicle batteries, are subject

to continuous development. In the case of

combustion engines, this also applies to toothed

belts, engine oils, spark plugs and so on.

Inappropriate or improperly used fluids and

operating media can lead to accidents,

injuries, burns and serious poisoning.

Therefore, whenever fluids or media need to be

changed, please contact a specialist workshop.

● Store operating fluids only in their

original, tightly closed containers.

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Instruction manual

● Never store operating liquids in empty

food cans, bottles or other similar

containers, as they could be ingested by

someone else.

Windscreen washer fluid

● Keep liquids and operating media out of

the reach of children.

● Always read and heed the information and

warnings on the operating fluid containers.

● When using products that emit harmful

vapours, always work outdoors or in a well-

ventilated area.

● Never use fuel, turpentine, engine oil, nail

polish remover or any other evaporating

liquids for the maintenance of the vehicle.

These substances are toxic and highly

flammable and can cause fires and

explosions!

Fig. 245 In the engine compartment: Vacuum reservoir

cover.

Check the washer fluid level regularly and restore

it if necessary.

NOTICE

There is a sieve in the filler neck of the tank of

the scrubber-drier. When filling the tank, this

sieve retains large dirt particles so that they do

not reach the ejectors. The sieve should only

be removed for cleaning. If the strainer is

damaged or not fitted, these dirt particles could

enter the system during filling and clog the

washer ejectors.

● Use only suitable operating fluids. Never mix

up operating fluids, otherwise serious

malfunctions and engine damage may occur!

● If accessories and other optional equipment

are fitted upstream of the cooling air inlets,

the cooling effect of the engine coolant is

reduced. At high ambient temperatures and

high engine loads, the engine can overheat!

– Open the engine bonnet → page 313.

Leaking operating fluids may pollute the

environment. If

If any operating fluid comes out, collect it in a

suitable container and dispose of it properly and

– The windscreen washer tank can be

recognised by the symbol on the cover →

fig. 245.

– Check if there is still enough liquid in the tank.

an environmentally sound

in

– If refilling is necessary, mix clean water (not

Volkswagen-recommended

distilled) with a

manner

.

→

in the

rinsing agent

correct ratio as

indicated on the packaging.

– If the outside temperature is low, add a special

prevent the water from

anti-freeze liquid to

freezing →

.

Capacities

The capacity of the window washer tank is

approx. 4.5 to 7.5 litres.

WARNING

Never mix inappropriate coolant additives or

similar additives with the washer fluid.

Otherwise you may

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