Get Checking and topping up fluids -> Engine compartment Guide for Audi Rs Q8 SUV First Generation (2020-2026)

Checking and topping up fluids

catalytic converter, for example. Drive slowly to a

qualified workshop without delay and have the

fault rectified.

WARNING

A vehicle’s engine compartment is a potential-

ly hazardous area and working there can lead

to serious injuries.

The indicator lamp may also light up if the fuel

tank flap has not been closed properly

– Always exercise extreme caution when work-

ing in the engine compartment. Always keep

to the generally accepted safety procedures

and use your common sense. Never put

yourself at risk of injury.

ðpage 312

Engine compartment

General information

– Do not perform any work in the engine com-

partment if you do not fully understand the

procedure or if you do not have suitable in-

formation, tools and equipment.

Extra caution is necessary when working on com-

ponents in the engine compartment.

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 ob-

serve the warnings listed below and follow all

normal safety precautions. The engine compart-

ment of any motor vehicle is a potentially haz-

ardous area. ð

– If you are not sure how to proceed, have the

work performed by a qualified workshop.

Work which is not performed properly can

cause serious injuries.

WARNING

– Switch off the engine.

– Switch off the ignition.

Explanation of warning symbols:

– Apply the parking brake.

Observe all warnings – risk of injury!

– Select transmission position P (Park).

– Wait for the engine to cool down.

– Keep children away from the engine com-

partment.



Hot engine parts!

Rotating parts!



– Never spill fluids on a hot engine. These flu-

ids can cause a fire (e.g. radiator anti-

freeze).

Fan can switch on at any time!

High voltage! The voltage of these com-

ponents (such as the high-voltage sys-

tem or ignition system) is lethal! Touch-

– Take care not to cause short circuits in the

electrical system.

– Never touch the radiator fan. The fan is tem-

perature-controlled and may switch on sud-

denly even if the ignition is switched off.

– 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.



ing damaged live high-voltage compo-

nents could cause you to be fatally elec-

trocuted.

High voltage! Switch off the engine be-

fore touching any part of ignition sys-

tem!



The catalytic converter can be damaged

if the engine oil level is too high!



– Plug-in hybrid drive: The cap on the coolant

expansion tank for the high-voltage system

is fitted with a sealing tag which must not

be removed under any circumstances

ðpage 323, Fig. 200. If there is no sealing

Hot coolant – risk of scalding!



Always read the instructions in the Own-

er’s Manual.





Depends on engine and country

320

Checking and topping up fluids

tag on the coolant expansion tank for the

high-voltage system, please take the vehicle

to a qualified workshop.

– Always keep an approved fire extinguisher

immediately available.

– Any work on the batteries and electrical sys-

tem in your vehicle entails a risk of injury

and chemical burns in addition to danger of

accident or fire. For this reason, you must

have the work carried out by a qualified

workshop.

– Plug-in hybrid drive: The cap and sealing tag

on the coolant expansion tank for the high-

voltage system must only be opened by a

qualified workshop.

– The cap on the coolant expansion tank must

not be opened if the coolant is hot. The cool-

ing system is under pressure; there is a risk

of being scalded.

– Do not expose yourself to exhaust gases or

chemical substances for any longer than

necessary.

– Protect face, hands and arms by covering

the cap with a large, thick cloth to protect

against escaping coolant and steam.

– Never remove the engine cover panel – risk

of burns!

CAUTION

When topping up fluids make sure the correct

fluid is put into the correct filler opening. This

can otherwise cause serious malfunctions or

engine damage.

– Never touch ignition cables or other compo-

nents of the electronic high-voltage ignition

system while the engine is running or being

started – risk of electrocution!

For the sake of the environment

Inspect the ground underneath your vehicle

regularly so that any leaks are detected at an

early stage. If you find spots of oil or other

fluids, have your vehicle inspected by a quali-

fied workshop.

– The accelerator pedal must on no account

be pressed inadvertently when a gear is en-

gaged and the engine is running with the ve-

hicle stationary. The vehicle will otherwise

start moving immediately and could cause

an accident.

– If any tests or repairs 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:

– First apply the parking brake and select

transmission position P (Park).

– Always make sure that no parts of the

body, jewellery, ties, loose items of cloth-

ing or long hair can become caught up in

rotating engine parts. Before commencing

any work, always remove ties and jewel-

lery, tie back long hair and wear tight

clothing to prevent these from becoming

caught up in the engine parts.

– Observe the following additional warnings if

work on the fuel system or the electrical sys-

tem is necessary:

– Do not smoke.

– Never work near naked flames.

321

Checking and topping up fluids

►

Lift the bonnet slightly ð

Opening/closing bonnet

Press the release lever ðFig. 199 in the direc-

tion indicated by the arrow. This will release the

arrester hooks.

The bonnet is released from inside the vehicle.

►

Open the bonnet.

Closing the bonnet

►

To close the bonnet, pull it down to overcome

the spring pressure.

►

Then let it drop into the catches; do not press

down. ð

Driver messages

Fig. 198 Footwell: Release lever

The following driver messages may appear, de-

pending on the equipment installed in your vehi-

cle:



Warning! Bonnet not locked. Stop vehicle

and check bonnet lock

The bonnet lock is not correctly engaged. Stop

your vehicle without delay and close the bonnet.

WARNING

Fig. 199 Unlocked bonnet: Lever

– 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.

Please refer to the safety notes ðpage 320, Gen-

eral information.

The wiper arms should be resting on the wind-

screen: make sure they are not in a raised posi-

tion. Otherwise the paint may get damaged.

– 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. It should not be possible

to lift the front edges of the bonnet.

– 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.

Opening the bonnet

►

Applies to vehicles with plug-in hybrid drive:

Switch off the ignition before you release the

bonnet; otherwise the combustion engine may

start automatically.

►

With the door open, pull the lever  under

the dashboard in the direction indicated by the

arrow ðFig. 198.

Symbol  not available in all countries.

322

Checking and topping up fluids

Engine compartment layout

Main components for checking and refilling

Fig. 200 Engine compartment layout: Example

Please refer to the safety information

ðpage 320, General information.

cap may be different on some engine and country

versions.

Jump-start terminals: under a cover (+); hex-

agon head (–) ðpage 333, Charging the 12-

volt vehicle battery, ðpage 360, Jump-start-

ing

Note

Plug-in hybrid drive*: Please note the infor-

mation for the coolant expansion tank on

ðpage 327, Checking the coolant level and

for jump-starting on ð in Preparations on

page 360.

Coolant expansion tank for combustion en-

gine () ðpage 327

Engine oil filler cap () ðpage 325, Check-

ing the engine oil level

Sticker for engine oil specification

ðpage 324

Brake fluid reservoir () under a cover

ðpage 329

Plug-in hybrid drive: Coolant expansion tank

for high-voltage system () ðpage 327

Windscreen washer container ()

ðpage 334

The positions of the brake fluid reservoir, the

coolant expansion tank and the engine oil filler

323

Checking and topping up fluids -> Engine compartment for Your Audi Rs Q8 SUV First Generation (2020-2026)

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