2020 AUDI A8 check engine

Checking and Filling

Applies to: Audi tablet: Select on the home
screen: VEHICLE > 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.
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.
288

Emergency assistance

To benefit fully from the advantages of the uni-
directional tire design, you should replace faulty
tires as soon as possible and restore the correct
running direction on all of the tires.
> Reinstall the caps on the wheel bolts if necessa-
ry.
> Store the vehicle tool kit in its designated
place.
> If the removed wheel does not fit in the spare
wheel well, store it securely in the luggage
compartment > page 100.
> Check the tire pressure on the installed wheel
as soon as possible.
> Correct the tire pressure and store it in the MMI
=> page 308.
> The wheel bolt tightening specification must be
90 ft lbs (120 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.
Space-saving spare tire
Applies to: vehicles with space-saving spare tire (compact
spare tire)
The spare tire is intended for short-term use only.
Have the damaged tire checked and replaced if
necessary by an authorized Audi dealer or author-
ized Audi Service Facility as soon as possible.
There are some restrictions on the use of the
compact spare tire. The compact spare tire has
been designed specifically for your type of vehi-
cle. Do not replace it with the spare tire from an-
other type of vehicle.
The compact spare tire is located in the luggage
compartment under the cargo floor cover
> page 316.
The tire pressure must be 61 PSI (420 kPA).
Snow chains
For technical reasons, the use of snow chains on
the compact spare tire is not permitted.
322
If you have to drive with snow chains and a front
tire fails, mount the spare tire in place of a rear
tire. Install the snow chains on the rear tire that
you removed, and install that in place of the
front tire that failed.

ZA\ WARNING
— After installing a spare tire, the tire pressure
must be checked as soon as possible.
— Do not drive faster than 50 mph (80 km/h)
with a compact spare tire. Driving faster
than that increases the risk of an accident.
— To reduce the risk of an accident, avoid hard
acceleration or braking and driving fast
around curves with the compact spare tire.
— To reduce the risk of an accident, never drive
with more than one compact spare tire.
— Normal summer or winter tires must not be
mounted on the compact spare wheel rim.

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.

4N0012721BD
Emergency assistance



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
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 274.
— 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.
— Plug-in hybrid drive: You must not give a
jump start with your vehicle. This could
cause significant damage to the electrical
system in your vehicle.
G) 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.
aoe aalale]
Both jump start cables must be connected in the
correct order.

Fig. 205 Engine compartment: connectors for jump start
cables or a charger



Fig. 206 Connecting the jump start cables
The jump start cable connections are located in
the engine compartment.
Follow the information about the vehicle battery
=> page 284.
Connecting the positive cable (red) to the
positive terminal
> Open the red cover on the positive terminal
> fig. 205.
1. Attach one end of the positive cable (red) to
the jump-start pin @ 9° fig. 206 on your vehi-
cle.
2. Attach the other end of the positive cable
(red) to the positive terminal @) on the pow-
er source.
Connecting the negative cable (black) to the
negative terminal
3. Attach one end of the negative cable (black)
to the negative terminal @) on the power
source. >
323

Fuses and bulbs


This can cause damage to the electrical sys-
tem and increases the risk of fire.
(G) 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-


- 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.
Fuse assignment - left side of cockpit


Fig. 211 Left side of the cockpit: fuse panel with plastic
clip

Fuse panel (2) (black)
No. | Equipment


Climate control system, interior air sensor

N Phone, roof antenna

Climate control system, fragrance system,
particulate matter sensor

Head-up display

Audi music interface, USB sockets

Steering column lock
Front MMI display
Instrument cluster


Ol/aOIN/uys

10 | Volume control

11 | Light switch, switch panels


12 | Steering column electronics

328
Fuse panel (@ (black)

14 MMI Infotainment system control module

15 Steering column adjustment

16

Steering wheel heating

Fuse assignment - left footwell

lo} | He
ia i, L



. | Equipment

Engine ignition coils

Engine start

Electric motor coupling

Windshield wiper control module

Left headlight electronics

Climate control system blower

Instrument panel

Windshield wipers

OND)
OMA)
WININI]
eR
Panoramic glass roof

Fuse panel (2) (black)
No. Equipment

Engine mount


Left rear door control module

4N0012721BD

Child:safety:seats © wc cs cnc so wane ov emcee 91
Securing to the top tether anchor........ 95
Securing with a safety belt.............. 94
Securing with LATCH...............0--5 93
GIGANING was: «2 wesc a 2 wee 2 2 er ee oe a 2 309
Cleaning Alcantara............2-.00000- 312
Cleaning artificial leather............... 312
Cleaning carbon components........ 311,313
Cleaning controls..............00 ee eee 312
Cleaning decorative parts/trim........... 311
Cleaning exhaust tail pipes.............. 311
Cleaning:plastio parts: 5 2 sacs + ssn « 4 sex 312
Cleaming:textiles cision a x saves x a noms v x onan 312
Climate control system..............0.. 104
Climate control system controls in the rear
Childisafety lO¢Kiisne » + iscsi © © snemoss a o ammuaue w 4 53
Closing
Automatic luggage compartment lid...... 51
Convenience closing...........eeeeeaee 54
HOO « wissen oo scawiee a vane v4 ames ao oie a a 276
Luggage compartment lid............... 50
Luggage compartment lid with foot motion . 52
Panoramic glass roof...............204. 55
Rear window sunshade..............005 56
Sunshade (roof) ................00.0005 55
Sunshade (windows) .............0.0005 54
WENGOWS « ssncsie = s cosmsne % « cosmins o coanees wo a seme 54
Closing aid (power closing doors).......... 43
COASTING sam s wen «ore ao wee ae re a 118
Cockpit diMMING « « sss + ¢ wows se ces +e oes 65
Cockpit (OVERVIEW) « = aims se swag s pase a x res 6
GOlGFNUMBEr: ¢ sess sy poem 5 eae 5 e eRR « 341
Combustion engine.................005 118
Combustion engine startup.............. 116
Comfort auxiliary air conditioning......... 109
Comfort entry...... 0.00... eee eee eee ee 129
Coming home/Leaving home
refer to Entry/exit lighting.............. 63
Compact spare tire................0.00. 322
COMPAFEMENESS « sccwn « 0 wince 2 6 eeewene @ 0 ommete 98
Compass inthe mirror............-....-- 70
Compliance. « seve ss wesw sv exces 2 ora ¥ os 339
Configuration wizard.................00. 20
CONNMEGts ¢ 2 wwe x y meme 2 eRe ty eee Re 216
Data plans: « win os wesc vo cman o mane oe 221
Data Privacy. ...... eee eee eee eee eee 334
Emergency/calll «sci © wens e ¥ een 2 3 esecoee 223
Infotainment.......... 0. cece eee eee 216
Infotainment’services. . ci. . evew a ee 217
Online roadside assistance............. 224
Vehicle control services................ 218
Connected devices
Device overvieW.........-..02- 00s eee 268
Connections
fefer to Médidies: = s sews s ¢ news + eee 250, 255
Consumer information.................. 336
Consumption
Reducing « « cas « wows « + wees o x pew so me 121
Consumption (fuel) ........ 2... e eee ee eee 16
Contacts
‘Add destinations « sscis a sass 6 & avian « & a0 235
Importing and exporting.............. 211
MGITIONY: CAPaCity cu s & saces 2 & nas 4 £ Sana 211
Opening (business card)............... 205
Updating inthe MMI.................. 211
Convenience key’: «sini ee eye ev ere as owe 43
Convenience closing.................-. 54
also refer to Vehicle key.............00. 47
Convenience opening and closing
SSUNSHAPE secre «a wine a & siemens Windows or panoramic glass roof........ 54
Coolant temperature display.............. 14
Cooling MOC iis. ce ssw ee eevee ov eevee oo oe 105
Cooling system
AddING
COOLANT: cies a + essing © 1 erecnse nw nome 282
Checking the coolant level............. 282
GOGLANE evccs 2 owe ov samen 2 o ome 7 o eR 281
Cornering light <. « «ees : s sews se eee se es 60
Cross traffic assist (intersection assistant) .. 189
Cruise control system..........-...00-5 166
Cup holders......... 0... cece eee eee 98
Current consumption.................005 16
Curve tilting function..............0000. 129
D
Data plans cosces x « smones x 5 sweets a 6 ononens © ot ones 221
Data: PrivaGy’. 2 sien a sree x x vessieie 6 3 oooueue ¥ 6 334
DAtG cence. is comsas 2 2 rocuow vo nae + 8 Bee = RR 16
SOLE Gh + sucseie « senna ou snenene # 6 ecewse oo) asus 266
Daytime running lights.................. 60
Declaration of compliance............... 339
DEF (instrument cluster)...............0. 12