check engine light AUDI A7 2020 User Guide

4K8012721BC
Checking and Filling

authorized Audi Service Facility can also pro-
vide you with important information about
the recommended coolant additive.
Checking coolant

RAZ-0540 © =

MIN

Fig. 149 Engine compartment - Coolant expansion tank:
@ cover with release button; @) markings
Follow the safety precautions > page 227, Gener-
al information.
Checking the coolant level
> Park the vehicle on a level surface.
> Switch the ignition off.
> Open the hood > page 229.
The coolant expansion tank for some engines is
located in the water drip tray under a cover. Slide
the
cover that is located below the windshield
wiper on the front passenger's side toward the
windshield and remove the cover.
> Check the coolant level in the coolant expan-
sion tank > page 230, fig. 147 using the outer
markings @) > fig. 149. The coolant level must
be between the markings @) when the engine is
cold. When the engine is warm it can be slight-
ly above the upper marking.
> If you add coolant to the coolant expansion
tank for the combustion engine, see
=> page 234, Cooling system.
Adding coolant
Requirement: there must be a residual amount of
coolant in the expansion tank >@).
If you must add coolant, use a mixture of water
and coolant additive. Mixing the coolant additive
with distilled water is recommended.
> Allow the engine to cool.
> Place a large, thick towel on the coolant expan-
sion tank cap.
> Push the release button @) > fig. 149 on the
cap and carefully turn it to the left until you
feel resistance > /\.
> Push the release button again and remove the
cap completely.
>» Add coolant mixed in the correct ratio
= page 234 up to the MAX marking.
> 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.
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 can
be a dangerous area. Stop the engine and al-
low it to cool before working in the engine
compartment. Always follow the informa-
tion found in > page 227, General informa-
tion.
— 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.

C) Note
Do not add coolant if the expansion tank is
empty. Air could enter the cooling system and >
235

Checking and Filling

damage the engine. If this is the case, do not
continue driving. See an authorized Audi deal-
er or authorized Audi Service Facility for assis-
tance.
Brake fluid

BFV-0229|


Fig. 150 Engine compartment: cap on brake fluid reservoir
Follow the safety precautions > page 227, Gener-
al information.
Checking the brake fluid level
> Slide the cover that is located below the wind-
shield wipers on the driver's side toward the
windshield and remove the cover.
> Read the brake fluid level on the brake fluid res-
ervoir > page 230, fig. 147. The brake fluid lev-
el must be between the MIN and MAX markings
of.
The brake fluid level is monitored automatically.
Message
Ga / © 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.
236

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
accident. Do not continue driving. See an au-
thorized 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 = i. B or fm] indicator light turns on,
there is a malfunction in the power supply, the
battery, or the vehicle electrical system.
/ 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/driving
stability may be limited. Drive to an authorized >

4K8012721BC
Checking and Filling

Audi dealer or authorized Audi Service Facility im-
mediately.
= Electrical system: malfunction! Please con-
tact Service
Switch off all electrical equipment that is not
needed. Vehicle functions/driving stability may
be limited. Drive to an authorized Audi dealer or
authorized Audi Service Facility immediately.
= 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.

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
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 239. 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.

Battery
Peale mee alerted)
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 238, 12
Volt vehicle battery or > page 238, Other bat-
tery types
— Auxiliary battery (for example, for recuperation
or optional equipment) = page 238, Other bat-
tery types
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 239.

Z\ 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.

237

4K8012721BC
Checking and Filling

Charging the 12 Volt vehicle battery

Fig. 151 Engine compartment: connectors for a charger or
jump start cables
Note the safety precautions > page 227, General
information, > A\ in Battery general informa-
tion on page 237 and > /\.
Requirement: only use chargers with a maximum
charging current of 14.8 volts. The battery ca-
bles remain connected.
> Switch off the ignition and all electrical equip-
ment.
> Open the hood > page 229.
> Open the cover on the positive terminal
> fig. 151.
> Clamp the charger terminal clamps to the jump
start pins according to the instructions. (Hex
head bolt under a cover ©, hex head bolt 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 229.

Z\ 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 239.
— Ahighly 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.
G) Tips
Read all of the manufacturer's instructions
for the charger before charging the battery.

Windshield washer
system

B4M-0135)


Fig. 152 Engine compartment: washer fluid reservoir cap
Follow the safety precautions > page 227, Gener-
al information.
The windshield washer reservoir © contains the
cleaning solution for the windshield and the
headlight washer system > fig. 152, > page 230.
The reservoir capacity can be found in
=> page 291.
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.
Message
& Please add washer fluid
239

Checking and Filling

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 a certain 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.
If you have changed the oil yourself, you must re-
set the oil change interval.
240
Applies to: MMI: To reset the display, select on
the home screen: VEHICLE > Settings & Service
> Service intervals.
C) 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.

4K8012721BC
Fuses and bulbs

This can cause damage to the electrical sys-
tem and increases the risk of fire.
oO 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:
G@) 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. 174 Left side of the cockpit: fuse panel with plastic
clip









Fuse panel
6 |Volume control
7 |Instrument cluster
8 |Front MMI display
9 |Steering wheel heating
Fuse
No. | Equipment
2 |MMI Infotainment system control module
3 | Audi music interface
4 |Head-up display
5 Climate control system, fragrance system,
lonizer
9 |Steering column lock


Fuse panel





order
RAZ-0195} [i


and @) is in the opposite
on right-hand drive vehicles.


No. | Equipment



Steering column adjustment
CD/DVD player

Steering column electronics

WM)
Bl)
WlnN
Light switch, switch panels

No. | Equipment
2 |Engine components
Engine components
4 | Engine components

279

4K8012721BC
Index

Luggage compartment lid with foot motion . 41
Panoramic glass roof........... 000s eee 44
Sunshade (rOOf)'s + ween a 2 wome a 2 cores va eee 44
WINdOWS « wissen 2 6 onsen 6 waren a a commer a aos 42
Closing aid (power closing doors).......... 32
Cockpit dimming : « sea « = ves se eee ee oes 53
Cockpit (OVERVIEW) « » wos sv sees = yam ov see 6
COLGFNUMBERs « sasaz « s mame 3 awe so eUeR 2 291
Combustion engine..............0e ee eee 97
Coming home/Leaving home
refer to Entry/exit lighting.............. 51
Compact spare tire.............2..02... 273
Compartments......... 0.0.00 eee eee eee 80
Compass inthe mirror..............00005 57
Compliance.... 0.2.2... eee eee ee eee 289
Configuration wizard « cccc.s «ews oo emi ae € 20
CONMECUiees ow smears 2 6 eames 3 He 2 6 HeaMEW © wens 174
Data plans........... ee eee eee eee 179
Data Privacyes ss ees sy ose s pees s 3 eee 284
Emergency:calll sess 2s mesic + ewrama » wenn « 180
Infotainment....................2005 174
Infotainment services... ..0... 6.0.5 cee 175
Online roadside assistance............. 181
Vehicle control services... cc... cee es 176
Connected devices
Device overvieW........-... 00-2 e eee ee 220
Connections
referto Media...............0-0- 205, 209
Consumer information.................. 286
Consumption
REGUGCING = gaan s 2 aams « noun 6 = Ree 4 5 ROR 97
Consumption (fuel) ........ 2.0.0 16
Contacts
Add destination ¢ says x ¢ mea x aauen 4 2 ome 191
Importing and exporting.............. 172
Memory capacity.............02-.000e 172
Opening (business card)............... 166
Updating inthe MMI...........0. 20008 172
Gonvenience:key's « wssa x « ssn 3 o owe 6 + eee 32
Convenience closing..............-.... 43
also refer to Vehicle key.............005 36
Convenience opening and closing
Windows or panoramic glass roof........ 43
Coolant temperature display.............. 14
GOOG MOAEic s sass s sae 2 2 em EE ee G 86
Cooling system
Adding
coolant................200005 235
Checking the coolant level............. 235
COOLANE eects ow cosmaee te a awaates ow ane We wwii 234
Gornering lights: =» seme 2s aww a 6 eae 2 5 oe 48
Cross traffic assist (intersection assistant) .. 150
Cruise control system..............2005 127
CUB HOLMES ccs ¢ « ceca so hes se eee vB eS 79
Current consumption...............00005 16
D
Data plans... 2... eee ee 179
Data Privacy.................. 0000000. 284
Date crces oo aromas ao munnen @ o emerens ¥ axerenene © events 16
Setting... cece cece eee eee ee eee 219
Daytime running lights.................. 48
Declaration of compliance............... 289
DEF (instrument cluster)................. 12
Demo mode
refer to Presentation mode............. 195
Destination onthe map................. 187
Detatlss, « + mess = eames 2 + avai «2 anaem o « amen 186
Determining correct load limit........... 255
Digital'compass sv so sows «2 ews vs ee ee 57
Dimensions:: « goss = ¢ ewe =o howe +o eee 2 291
Dimming the exterior mirrors............. 54
Dimming the rearview mirror............. 54
Directory
S@QttinGS wows ¢ « eee ¢ Rees Go Ree ce dewE E L72
also refer to ContactS ........00...0008 166
Display
Cleaning........ 0... eee ee eee eee 264
Disposal...... 0.0... c eee eee eee eee 286
Distam@e rics os ssssans a « ansnee oo axons o @ wuan @ ae 16
Distance warning ........0..eceee eee eee 140
Doors
Child safety lock.............02..00000- 42
Door contact switch..............000005 52
Mechanically unlocking and locking....... 35
Power closing/closing aid............... 32
Driver information system................ 13
Drives
refer to Media..............00005 205, 209
Drive select
refer to Audi drive select............... 104
295

Index

DriversySteim 5 cscs «x sevens © 5 eswanes 6 ¥ wumees 97,99
Audi drive select.............0 eee eee 104
Driving down hills.............2--0000- 102
DrivingprogKraims. » « swewcs + + snes oo mtmsen @ 93,139.
Driving through water................0. 103
DriVING TIMes + 3 secur so ceswen + wees s aaaeER a oo 16
Driving tips
Driving through water................. 103
Efficient driving. ..........00..ee eee eee 97
Uphill and downhill................... 102
Driving up hills: =z sees ¢ 2 sees ae ewan es es 102
Dust filter
refer to Pollutant filter..............0.. 88
DVD drive (media drives)................ 206
Dynamic all-wheel steering.............. 106
E
E-mail
Message options «. 2 6 cs. s seven se ees e 170
SettingS 0... . 0... c eee eee eee eee 170
EDL
refer to Electronic Differential Lock...... 108
EDR
Event Data Recorder wi .2 os ecce se eecee es 282
Efficiency assist... 0... eee eee 128
Electrical system. .........-.0 0 eee ee eee 236
Electromechanical parking brake......... 101
Electronic Differential Lock.............. 109
Electronicimmobilizetiiec:. . 2 sive «6 cess «2 one 37
Electronic Stabilization Control........... 108
Embedded SIM Gard « savers « « sways x 2 cawa 9 oa 175
EM@rgency assist sans « x asas 5 aaven ss news s L51,
Emergency assistance..............+-0. 267
Emergency braking function............. 102
Emergency call............200005. 167, 180
Emergency flashers..............--0000- 52
Emergency fueling.............--..000- 226
Emergency: Mode viic = + saree 2 waren oo tere 2 96
Emergency operation
Doors... 2... ee eee 35)
Fueltilledoor's « + saws & 3 naan & s aes a § me 226
Luggage compartment lid............... 41
Panoramic glass roof.............000005 44
Emissions control system.............. 227
Energy COMSUMERS! 5 sia oo wend 6 saan ao ave 17
296
Energy Managements os sce 6 eevee wo wise so 97
Engine
Breakingin.......... 0... cee eee eee eee 97
GCOOlSNE + acas 3 < seam Blais 2 a eae,8 © Game 234
Emergency Sto piss: os sess oo scons 2 susan @ 2 one 90
Jump starting ........ cece eee eee 273
Start/Stop system.............-00 ee eee 98
Starting/Stopping)=. +s mces ss sees s eres s 90
Engine compartment
Opening and closing the hood.......... 229
Overview... 22.2... eee eee eee 230
Safety precautions.............eee sees 227
Engine oil
ACAING « scr © 2 seems 2 o ewe a 2 even & eee 230
CHANGING ns + vsnnas ov ensues « & enetane ww venues © 233
Checking oillevel.............2--000-- 230
CONSUMPTION is x sas oe caw oo wees oo we 230
Indicator light...........-...2.0000 02 231
Replacement interval..............00. 240
Temperature display................0-5 16
Engine sound
Audi drivesselectis « wcsne ss seinen a esawew ¥ ive 104
Enginesstartisystem ecco s aco 6 2 eases 6 & weve 91
Engine stop
refer to Start/Stop system.............. 98
Entry/exitilightingjen: « «cence m 2 owas a a amnion a 51
Enithy aSSistance:: + 2 sowie so sew 6 © eee oo coe 61
also refer to Exit assistance............. 61
Environment
Unleaded gasoline................2.0. 223
eSIM
refer to Embedded SIM card............ 175
Event Data Recorder (EDR).............. 282
Exit assistance... 0.6... eee eee 61
Exit warning ................00 000 eee 149
Exterior lighting.................02.-005 48
EXteriOn MIPKONS scisane os serene oo vemos wanes 4 @ 53
Folding settings...............-.000005 33
External voice operation................. 28
F
Factory default settings
Multi Media Interface................. 220
Fast forwarding and rewinding (media file). 209
Fast forwarding (media files)............ 209
FaStrOute’s « cocces 2s swan 2 0 aren © 9 sane © rans 183