open hood AUDI A5 2021 User Guide

Checking and Filling

Coolant loss usually indicates that there is a leak.
Immediately drive your vehicle to an authorized
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, coolant loss can re-
sult from the coolant boiling due overheating
and then being forced out of the cooling system.

ZA WARNING
— The engine compartment in any vehicle is a
potentially dangerous area. Stop the engine,
switch the ignition off, and allow the engine
to cool before working in the engine com-
partment. Always follow the information
found in > page 230, General information.
— 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.
— When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases 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.

@) Note
Do not continue driving if the coolant expan-
sion tank is empty. Do not add any coolant,
because air could enter the cooling system
and damage the engine. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.
238
Brake fluid

BFV-0229]


Fig. 170 Engine compartment: cap on brake fluid reservoir
Observe the safety precautions > page 230, Gen-
eral information.
Checking the brake fluid level
The brake fluid reservoir is located under a cover
on the driver’s side.
> Lift the cover > page 232, fig. 167 at both
openings and remove it.
>» Read the brake fluid level on the brake fluid res-
ervoir > page 232, fig. 167. The brake fluid lev-
el must be between the MIN and MAX markings
oA.
The brake fluid level is monitored automatically.
Messages
EG i @ Brakes: stop vehicle and check brake
fluid level
Stop the vehicle and check the brake fluid level.
See an authorized Audi dealer or authorized Audi
Service Facility for assistance.
Changing the brake fluid
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.

ZA WARNING
— If the brake fluid level is below the MIN
marking, it can impair the braking effect and
driving safety, which increase the risk of an

8W7012721BB
Checking and Filling

Other battery types
Explanation of warnings:
Fire, sparks, open flame, and smoking are
& forbidden.
Always keep children away from battery
@) acid and the battery.


@/ | Always follow the instructions in the oper-
fQ | ating manual.

Z\ 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 different bat-
tery types can be poisonous or flammable.
— The contents of these battery types can be
corrosive. If any battery contents come into
contact with the skin, flush the affected
area for at least 15 minutes with clean wa-
ter. Then wash the affected area with soap.
Have the affected area examined by a medi-
cal professional.
@) Note
Components must not be connected to the
battery terminals and wires on these battery
types because this increases the risk of dam-
age, for example due to overvoltage.

@ For the sake of the environment

“5 J These types of batteries must be dis-
posed of using methods that will not harm
the environment. Do not dispose of them in
household trash. They contain harmful sub-
stances and recyclable raw materials. Contact
an authorized Audi dealer or authorized Audi
Service Facility for more information.
ing the 12 Volt vehicle battery

Fig. 171 Engine compartment: connectors for a charger or
jump start cables
Observe the safety precautions > page 230, Gen-
eral information, > /\ in Battery general infor-
mation on page 240 and > /A\.
Requirement: only use chargers with a maximum
charging current of 14.8 volts. The battery ca-
bles remain connected.
The charging cable connections are located in the
motor compartment. The ground point ©) is al-
ways located on the vehicle body.
>» Switch off the ignition and all electrical equip-
ment.
> Open the hood > page 231.
> Press the release lever on the positive terminal
and fold the cover upward > fig. 171.
> Clamp the charger terminal clamps to the jump
start pins according to the instructions. (Hex
head bolt under a cover (), ground point on the
vehicle body ©).
> Insert the power cable for the charging device
into the socket and switch the device on.
>» At the end of the charging process, switch the
charger off and pull the power cable out of the
socket.
> Remove the charging device terminal clamps.
> Close the cover on the positive terminal.
> Close the hood = page 231.

ZA WARNING
— 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 > page 241. >

241

Index

Drive select
refer to Audi drive select.............0. 118
Drive system... ... 00.20. cee eee eee eee 110
Audi driveselect . cc.0i ices d ceca cain 118
Drive system (message) ........00. eee eee 112
Driving down hills............0. 00.0 eee 116
DrivING PFOGKAME. « « eserce «© sone 6 0 sons aw ane 146
Driving through water.................. 116
DrIVING ELIMI 5 & cescinne 6 5 cose vo een & enawens a 17
Driving tips
Driving through water...............0- 116
Efficient driving................00000- 110
Uphilland downhill................... 116
DFIVING:-trACK es: « 2 sews & 2 seme xc owe oe 116
Driving Up:hills. < 2 sees + » yews 5» ewes c 2 eee 116
Dust filter
refer to Pollutant filter................. 98
DY MAMIE StEEKING = wwe = 2 qewe a 2 anes = noR 119
E
E-itidilss < same « 2 sau: ¢ 5 sepa 2 s neem 2 5 pee 180
SOCHINGSiccsain » sew © © wravens a & soomem w V soveTS 6 180
EDL
refer to Electronic Differential Lock...... 121
EDR
refer to Event Data Recorder (EDR)...... 290
Efficiency assist.............0 02. eee ee 137
PREGietiVe CONTTOlacs ¢ = wax + xeme 2 2 pene 142
Electrical system. ...........0.0020000. 239
Electromechanical parking brake......... 114
Electronic Differential Lock.............. 121
Electronic immobilizer................00. 39
Electronic Stabilization Control........... 121,
Embedded SIM Card « seswiie ss sien os wiven oo 8 183
Emergency assistance ............00000e 274
Emergency braking function............. 115
Emergency call.........cceeeeveee 178, 187
Emergency flashers...............000005 61
Emergency mode............020 eee eee 109
Emergency operation
DOOGIS s seas 3 ¢ Sone 2b ROMA ca aK o ANeRE se 37
Fuel tillerdoor ic = swiss a 2 saves wo wien «2 axe 229
Luggage compartment lid............... 44
Panoramic glass roof...............2-0. 47
Emissions control system..............- 229
304
EMErGy’CONSUMENS Hs 6 ceive e sieves ww neeewe wo x
Energy management... 006. eeee ee eens
Engine
Breakingin.............. cece eee eee
Emergency StOpies : « sews ss weea s eae gs
JUMPISTAREIING » « canseis ws wssins 6 # oeenss a a une
Start/Stop system...........--0000005
Starting/Stopping ws ss caw se ewes yams
Engine compartment
Opening and closing the hood..........
Overview ......- 2. eee cee eee eee
Safety precautions............-0.ee0ee
Engine data
refer to Sport displays..................
Engine oil
AGING «scence ox cesses > 5 eons owes av ara
Changing.......... eee eee eee eee
Checking oillevel.............---000--
CONSUMPTION ess « & sivees 2 o onerees & o ewer @ 8 ov
Indicator light..............02..0000-
Replacement interval.................
Temperature display.................-.
Engine sound
Audi drive select............ 0.00000
Engine Start/Stop mode
refer to Start/Stop system.............
Engine startsSySte ny wcusooe » scaseas o « seas oo one
Engine stop
refer to Start/Stop system.............
Entry/exit lighting. ............0 0...
Entry ASSISTANGE!S. 4 « scusnze » » sxnzece » o asnseue ow anes
also refer to Exit assistance.............
GlSO refer to Seats ¢ seen % 3 aes sv awn % Ears
Environment
Unleaded gasoline..................0.
ESG
refer to Electronic Stabilization Control...
ESCSpOlbnnsos 5 2 omners x x emmes oo nveoeee ao manne ©
eSIM
refer to Embedded SIM card............
Event Data Recorder (EDR)..............
Exitassistamee « scccene a 0 sxesese = v vreuain 3 o anes © 5
EXHE WAP Gicnes 2 a caees vw cscs «Heaven «© enone
Exterionantenna s wise <2 wees 2 6 mec ss oes
Exterior lighting + « ¢ see: +» sees y sae ees