check engine AUDI Q7 2021 Owner´s Manual

4M1012721BC
Checking and Filling

> Turn the cap to the right to tighten it until you
feel resistance a second time.
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 245, 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.
Brake fluid

BFV-0229]


Fig. 171 Engine compartment: cap on brake fluid reservoir
Observe the safety precautions > page 245, 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 247, fig. 168 at both
openings and remove it.
> Read the brake fluid level on the brake fluid res-
ervoir > page 247, fig. 168. The brake fluid lev-
el must be between the MIN and MAX markings
of.
The brake fluid level is monitored automatically.
Messages
EG / @ 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.

Z\ 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
accident. Do not continue driving. See an

253

Checking and Filling


authorized Audi dealer or authorized Audi
Service Facility for assistance.
— 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.
— The brake fluid in your vehicle must meet
the standard VW 501 14 and is available at
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.


@) Note
— 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.
— Do not allow any brake fluid to come into
contact with the vehicle paint, because it
will corrode the paint.
Electrical system
If the zz / B or z= indicator light turns on,
there is a malfunction in the power supply, the
battery, or the vehicle electrical system.
HB / BB Electrical system: malfunction! Safely
stop vehicle
Do not continue driving and switch the ignition
off > A\. See an authorized Audi dealer or author-
ized Audi Service Facility for assistance.
= Electrical system: malfunction! Restart not
possible. Please contact Service
If you switch the ignition off, 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.
=] Electrical system: malfunction! Please con-
tact Service
254
Switch off all electrical equipment that is not
needed. If necessary, some equipment will be
switched off automatically. Vehicle functions or
driving stability may be limited. Drive to an au-
thorized Audi dealer or authorized Audi Service
Facility immediately.
z= Electrical system: low battery charge. Bat-
tery
will be charged while driving
The starting ability may be impaired.
If this message turns off after a little while, the
vehicle battery has charged enough while driving.
If this message does not turn off, drive immedi-
ately to an authorized Audi dealer or authorized
Audi Service Facility.

ZA\ WARNING
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 switch the ignition off. See an author-
ized Audi dealer or authorized Audi Service Fa-
cility for assistance.

Battery
ela lame (Tem eeecela)
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 > A\.
Multiple batteries with different technologies
may be installed in your vehicle:
— Vehicle battery (for example, for starting the
engine, basic power supply) > page 255, 12
Volt vehicle battery or > page 256, Other bat-
tery types
— Auxiliary battery (for example, for recuperation
or optional equipment) > page 256, Other bat-
tery types
Not running the vehicle for long periods of
time
The battery will gradually drain if the vehicle
does not run for long periods of time. To ensure >

4M1012721BC
Checking and Filling

that the vehicle can still be started, the electrical
equipment will be limited or switched 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.
Even when electrical equipment is switched off,
the equipment can still drain the battery if the
vehicle is not driven for Long periods of time.
Deep draining results in a chemical reaction that
destroys the inside of the battery. The battery
must be charged every month to prevent this
= page 256. Contact an authorized Audi dealer or
authorized Audi Service Facility for more infor-
mation.
Winter operation
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.
so that it will not be destroyed by “freezing”
=> page 256, Charging 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
switch off temporarily. This will be indicated
by a message that will be displayed in the
instrument cluster until the temperature re-
turns to normal.
12 Volt vehicle battery
Explanation of warnings:
Always wear eye protection.

forbidden.

ZA 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.
— 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 256.

ZA WARNING
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.

@) Note
— If the vehicle will be parked for long periods
of time, protect the battery against the cold
A highly explosive mixture of gases can
form when charging batteries.

Always keep children away from battery
acid and the battery.
Battery acid is highly corrosive. Always
wear protective gloves and eye protection.
® Fire, sparks, open flame, and smoking are

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

@) For the sake of the environment

“© % Lead-acid batteries must be disposed of
using methods that will not harm the environ-
ment. Do not dispose of them in household
trash. They contain harmful substances, such
as sulfuric acid and lead, and also recyclable
raw materials. Contact an authorized Audi
dealer or authorized Audi Service Facility for
more information.
255

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.

ZA\ 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
“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.
256
rging the 12 Volt vehicle battery

Fig. 172 Engine compartment: connectors for a charger or
jump start cables
Observe the safety precautions > page 245, Gen-
eral information, > /\ in Battery general infor-
mation on page 255 and > /\.
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 246.
> Press the release lever on the positive terminal
and fold the cover upward > fig. 172.
> 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 246.

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 256. >

4M1012721BC
Checking and Filling


— A highly explosive mixture of gases can form
when charging batteries. Only charge the
battery in well-ventilated areas.
— 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 can leak out, 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.
— Do not connect or disconnect the charging
cable while charging because this increases


the risk of an explosion.

@) Tips
Read all of the manufacturer's instructions
for the charger before charging the battery.
Windshield washer
system

B4M-0135)


Fig. 173 Engine compartment: washer fluid reservoir cap
Observe the safety precautions > page 245, Gen-
eral information.
The windshield washer reservoir © contains the
cleaning solution for the windshield/rear window
and the headlight washer system* > fig. 173,
=> page 247. The reservoir capacity can be found
in > page 314.
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.
Messages
3 Please add washer fluid
Fill the washer fluid for the windshield washer
system and the headlight washer system* when
the ignition is switched 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 lead to vehicle damage.
— Never add radiator anti-freeze or other addi-
tives to the washer fluid.
— Do not use a glass cleaner that contains
paint solvents, because this could damage
the paint.
Service interval display
The service interval display detects when your ve-
hicle is due for service.
The service interval display works in two stages:
— Inspection or oil change reminder: after driv-
ing acertain distance, a message appears in the
instrument cluster display each time the igni-
tion is switched on or off. The remaining dis-
tance 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 switching 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: VE-
HICLE > 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.
257
>

Checking and Filling

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.
@) Note
— Only reset the oil change indicator if the oil
was changed.
— Following the service intervals is critical to
maintaining the service life and value of
your vehicle, especially the engine. Even if
the mileage on the vehicle is low, do not ex-
ceed the time for the next service.
258

Emergency assistance

> Store the vehicle tool kit in its designated
place.
> Store the replaced tire securely in the luggage
compartment > page 87.
> Check the tire pressure on the installed wheel
as soon as possible.
> Correct the tire pressure and store it in the MMI
=> page 278.
> The wheel bolt tightening specification must be
120 ft lbs (160 Nm). Have it checked as soon as
possible with a torque wrench. Drive carefully
until then.
> Have the faulty wheel replaced as quickly as
possible.
Jump starting
You should only perform the steps that follow if
you have the necessary tools and technical ex-
pertise.
If the engine does not start because the vehicle
battery is drained, you can jump start your vehi-
cle using another vehicle. Jump start cables are
needed to do this.
Both vehicle batteries must have 12 V nominal
voltage. The voltage capacity (Ah) of the vehicle
battery that is giving power must not be less
than the capacity of the drained vehicle battery.
Jump start cable
Only use a jump start cable with a large enough
diameter. Note the manufacturer's specifica-
tions.
Only use a jump start cable with insulated termi-
nal clamps.
Positive cable - usually red.
Negative cable - usually black.

ZA WARNING
— A drained battery can freeze at tempera-
tures around 32 °F (0 °C). If the vehicle bat-
tery is frozen, it must be thawed before con-
necting the jump start cables. If it is not,
the risk of an explosion and chemical burns

292


increases. After jump starting the vehicle,
drive to an authorized Audi dealer or author-
ized Audi Service Facility immediately to
have the vehicle battery checked.
— Read the warnings when working in the en-
gine compartment > page 245.
— Handling the jump start cables incorrectly
may cause the vehicle battery to explode
and lead to serious injuries.

@) Note
Jump start cables can cause considerable
damage to the vehicle electrical system if
they are connected incorrectly.
Gi) Tips
— There must be no contact between the
vehicles, or else voltage could flow when
connecting the positive terminal and drain
the vehicle battery of the vehicle providing
the jump start.
— The drained vehicle battery must be con-
nected correctly to the electrical system.
— Switch off electrical equipment that is not
needed.

Fuses and bulbs

ZA\ WARNING
Do not repair fuses and never replace a blown
fuse with one that has a higher amp rating.
This can cause damage to the electrical sys-
tem and increases the risk of fire.
@) Note
If a new fuse burns out again shortly after you
have installed it, have the electrical system
checked as soon as possible by an authorized
Audi dealer or authorized Audi Service Facili-
ty.
@) Tips
— The following table does not list fuse loca-
tions that are not used.
— Some of the equipment listed in the follow-
ing tables applies only to certain model ver-
sions or certain optional equipment.



Fig. 197 Front passenger's footwell (right-hand drive vehi-
cle): fuse panel with plastic clip

(brown) nT <7 wo @ 7 oo 3 o

Zz ° . | Equipment

Catalytic converter heating

Engine components

Engine components

Engine components

Brake light sensor

Engine components

Engine components

Engine components

WOlLOlINI
AD)
M|ASWIN/
PR
Engine components

B o Oil pressure sensor, oil temperature sensor

Bb BR Engine components

BR N Engine components

b Ww Engine cooling

BE R Engine control module

B wn Engine sensors
Bb a Fuel pump



panel with plastic clip Fuse


No. | Equipment

1 {Ignition coils



3 | High-voltage heating

298

4M1012721BC

Closing
Automatic luggage compartment lid...... 42
Convenience closing..........0...e5e0% 46
HOO « sisson sa cnamee ov atteoe a como eo ae vo 246
Luggage compartment lid............... 42
Luggage compartment lid with foot motion . 43
Panoramic glass:r00ficc:. «sien as nani we 6 cas 46
Sunshade (roof) .................000008 46
WINGGWS = scau 5 wae 5 § eee & 2 eS a 45
Closing aid (power closing doors).......... 34
Cockpit dimming....................008 55
Cockpit (overview) ............00 eee eee 6
(60) (0) 1-0: =) ee 313
Combustion engine sisi. «esses oe cave oo aoe 104
Coming home/Leaving home
refer to Entry/exit lighting.............. 53
Compartments’ » ween « « weonn + 4 weenie a 0 comes 87
Compass inthe mirror................0-. 61
Compliance. « seve ss seve sv wren 2 o exe ¥ os 311
ConferencerCallin.. ss agus sy eewe su ewe gay 189
Configuration wizard.............0...00 19
CONMECE as 2 news ¢ < Ree dB NOR FD Ree sD ae 194
Data plans: « secs os sew vs ewe v was wv 198
Data Privacy... .... eee cee cece 306
Emergency call.............-.-00000- 199
Infotainment: « s wees 2 & wees ss wae & owes 194
Infotainment services. ....... 000... 005 195
Online roadside assistance............. 200
Vehicle control services. .........0.0005 196
Connected devices
Device overview cc ss wine oo ween ov ewe 238
Connections
refer to Media.............000005 222,226
Consumer information..............0004 308
Consumption
Reducing... ... 2... cee eee eee eee eee 104
Consumption’ CUED) «cases oo russe ov seenere « sine 15
Contacts
Importing..............0-..0 000 eee ee 191,
Updating inthe: MMI a « « asa « paaws s nyen 191
also refer to Directory................. 188
Convenience keys. veces eevee meee soe 34
Convenience closing................... 46
also refer to Vehicle key..............05 38
Convenience opening and closing
Windows or panoramic glass roof........ 46
Coolant temperature display.............. 14
Cooling MOG etic. i = ssc se eocwere ve serene wv omen 94
Cooling system
Adding
coolant................-000 ee 252
Checking the coolant level............. 252
GOOlANE svc 2 x oes ov ewe eo a 2 o oe 251
Cornering lighti:; ¢ 2 aces > = awe yo ees ee ee 50
Cross traffic assist (intersection assistant) .. 159
Cruise control system............000005 136
Cup holders. ....... 0 cece eee eee eee 86
Current consumption.............-0 eens 15
D
Data module
Serial:number (IMED) ¢ esses ss casas canes 191
Data plans... 1... eee eee eee 198
Data Privacy...... 0... s cee cece eee 306
Date... eee eee LS
SOttiliG's s savy 3 ¥ HAY s 4 BaueS 4 E RaER & sae 236
Daytime running lights...............0-. 50
Declaration of compliance...........0005 311
DEF (instrument cluster) ...............4- 12
Demo mode
refer to Presentation mode............. 212
Destination onthe map...............4. 205
Details, . a ssc « sxaneus os stineoue oo omnis mo auncems 205
Determining correct load limit........... 273
Digitalicompass siavis « s sess oa saves o 8 suse a 3 61
DIM@NSIONS. « s ween « seems oy noes 6 2 ew & e 3:13
Dimming the exterior mirrors............. 56
Dimming the rearview mirror............. 56
Directory.......... 2.0.00. cece eee eee 188
Businessicatd cis ss aces so meas s eames s we 189
SOEGINGS
cscs « 2 mazes & aenseee « stems © 6 amt « 191
Display
Cleaning...........0 0. 283
Disposal..... 0.0.0... eee eee eee eee ee 308
DistamG@ sericea & ssseie ss owes so covnine oo creme @ os 15
Distance: warning csvevs © « sce vs sseoee wo senses 148
Doors
Child safety lock...................000. 44
DOOrCONntactSWitch » + ceau sv sees yc aeam a: 54
Mechanically unlocking and locking....... 37
Power closing/closing aid............... 34
Driver information system.............--. 13
317

Index

Drives
refer to Media.............000 eee 222,226
Drive select
refer to Audi drive select............... 113
Drive systeM..... ee eee eee ee ee 104, 106
Audi drive Select s cso 2 ¢ cawe 2 2 gence a ee 113
Driving down hills...............-0.00- 110
Driving program..............0005 101, 147
Driving through water............-..005 111
Driving time... 6... eee eee eee 15
Driving tips
Driving through water................- 111
Efficientdriving ¢ wuss « ¢ cows se cows xe ea 104
Offroad driving............. cee eee eee 110
Uphill and downhill................00. 110
Driving uphills.................2..004. 110
DVD drive... . 2... eee eee eee eee eee 223
E
EPMA Cc ctienans a sxexsign oo someone oF 6 eaninn a 4 auata 192
Settings............. 0.000.002 0 02 192
EDL
refer to Electronic Differential Lock...... 117
EDR
refer to Event Data Recorder (EDR)...... 303
Efficiency'assist:«. « « swas ss saws ye ees soe 137
Predictive COMtOle:.c. oo snswse « oecase «4 suesecm 143
Electtical'system:. « «wes: 2 amie oe came 6 oe 254
Electromechanical parking brake......... 108
Electronic Differential Lock.............. Li?
Electronic immMobiliZetjewy: . ¢ wees 4 é wows sa ee 39
Electronic Stabilization Control........... 117
Embedded SIM card............0e0eeeee 195
Emergency assist...........000-00 ee eee 159
Emergency assistance..............000. 286
Emergency braking function............. 109
Emergemey calli: «oven se soesace es eons 190, 199
Emergency flashers..............--.00-5 53
Emergency mode..............---2ee0- 103
Emergency operation
DOORS a cess v x wasn + 5 cose 6H some ¥ shaaem FF
Fuel filler door
Luggage compartment lid............... 44
Panoramic glass roof..............0.005 47
Emissions control system..............% 244
318

EM@rgy CONSUIMENS ies & 0 csv wiemnes a ree wo 16
Energy Management. . . cw. seca ee enn 105
Engine
Breakingin.............. cece eee eee 104
Coolant... 6... ee eee eee eee eee 251
Emergency StOp ix : « wows ss wigs s nares se we 98
JUIMPISTAREIING » « canaeie ws awssins 6 # sense aw nn 292
Start/Stop system...........--0000005 105
StartinG/StOppiNG wx 2 = sew + v gems + 2 wes = 98
Engine compartment
Opening and closing the hood.......... 246
Overview .... 2... eee eee eee eee 247
Safety precautions............-0.ee0ee 245
Engine oil
AGOING « seven = ¢ eye + + seers 3 es Fc ees 248
CHANG IG psu: 1s + wausan 6 e tenses © cascan wx sanitene © 250
Checking oillevel..............--000-- 248
Consumption ss ¢ ssws « « sews se eee so 248
Tndicator light: « cas + sao e > waren @ macorn 248
Replacement interval................. 257
Temperature display................0-5 15
Engine sound
Audi drive’select« «isis +s css 2 a secu 2 0 3 114
Enigine’startsystem «css ¢ ees ss eee « x eee 99
Engine stop
refer to Start/Stop system............. 105
Entry/exit lighting oe. <2 sca se erwe ve owen a < 53
Enthy 4SSiStance:. « + aus + ¢ sqm 9 cease es 66
REAR SCALES cusses x cusses © w suenens oo mane wo oes 67
also refer to Exit assistance............. 66
Environment
Unleaded gasoline.............e eee eee 241
ESC
refer to Electronic Stabilization Control... 117
ESC OfffOad sours s = sqws & = nua ¢ 2 sates ee 118
eSIM
refer to Embedded SIMcard............ 195
Event Data Recorder (EDR).............. 303
EXHBSSSISTANGCE « ema 3 x new ¢ 2 eee 4 8 em ¥ ¥ 66
EXiIQWarnitiGhers: < = sas ¥ 2 eares 3 2 ecteN Eo ee 157
Exterior antenna..................000. 186
Exterior lighting.......... 0.0.0 e eee eee 50
Exterior mirrors. ..........0..0.00.0000. 56
Folding settings..............cceee vues 35
External voice operation................. 28