2020 AUDI A8 auxiliary battery

Warm and cold

Air quality display
Applies to: vehicles with air quality display
You can display information about the air quality.
> Applies to: MMI: Select on the home screen:
VEHICLE > Climate control > Air quality.
> Applies to: Rear Seat Remote: Press AIR QUAL.
on the home screen.
Pollutant filter
A pollutant filter cleans the air in the vehicle inte-
rior when the blower is switched on.
A schematic display represents the effectiveness
of the filter. The display visualizes the amount of
pollutant particles in the vehicle interior in com-
parison to the surroundings.
@ Tips
For optimal air quality in the vehicle interior,
close all windows and doors and activate A/C
cooling mode, the AUTO function, and recircu-
lation mode.
Well
a/c] Air conditioner: increase in CO2 concentra-
tion. Ventilate vehicle. See owner's manual
Ventilate the vehicle. If this message continues
to display, stop driving as soon as you can safely
park your vehicle and contact an authorized Audi
dealer or authorized Audi Service Facility. If this
message appears, drive to an authorized Audi
dealer or authorized Audi Service Facility immedi-
ately.
Steering wheel heating
Switching on and off
Applies to: vehicles with steering wheel heating
> Press the @ button to switch steering wheel
heating on/off.
You can also operate the steering wheel heating
using the multifunction steering wheel
=> page 40.
108
G) Tips
The steering wheel heating setting will be au-
tomatically stored in the active personal pro-
file.
Applies to: vehicles with steering wheel heating
@& Steering wheel heating: on/Steering wheel
heating: off
This message appears if you have switched the
steering wheel heating on or off.
Steering wheel heating: malfunction! See own-
er's manual
If this message appears, there is a malfunction.
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
Auxiliary climate control
Applies to: vehicles with auxiliary climate control
The auxiliary climate control system warms or
cools the vehicle interior. The vehicle will turn on
the auxiliary climate control system if needed,
depending on the last temperature that was set
with the climate control system controls. This
function can be used when the drive system is
switched off.
You can turn the auxiliary climate control system
on and off immediately in the MMI or set a timer.
Requirement: The charge level of the high-volt-
age battery must be sufficient.
@ Tips
— The temperature that the auxiliary climate
control adjusts to depends on the last tem-
perature that was set > page 104.
— Using the auxiliary climate control while
charging can also reduce the charge level of
the high-voltage battery.
— Starting or stopping the vehicle will not
switch off the auxiliary climate control auto-
matically.

4N0012721BD
Checking and Filling

Multiple batteries with different technologies
may be installed in your vehicle:
— Vehicle battery (for example, for starting the
engine, basic power supply) > page 285, 12
Volt vehicle battery or > page 286, Other bat-
tery types
— Auxiliary battery (for example, for recuperation
or optional equipment) > page 286, Other bat-
tery types
— Applies to: Plug-in hybrid drive: High-voltage
battery (for example, for electric driving)
= page 136, Introduction.
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 286. 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.

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 286.


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.

@) Note
— If the vehicle will be parked for long periods
of time, protect the battery against the cold
so that it will not be destroyed by “freezing”
=> page 286, 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.
PAO A Ula wer Lasley,
Explanation of warnings:
Always wear eye protection.



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

Fire, sparks, open flame, and smoking are
forbidden.


Battery acid is highly corrosive. Always
wear protective gloves and eye protection.
A highly explosive mixture of gases can
form when charging batteries. >


285

Fuses and bulbs






































Fuse panel @) (red) Fuse panel (4) (black)
3 | Exhaust treatment, sound actuator 8 | Night vision assist, active suspension
4 |Rear climate control system control panel 9 | Adaptive cruise assist
5 |Right trailer hitch light ll Intersection assistant, driver assist sys-
6 | Trailer hitch positioning motor tems
7 |Trailer hitch 12 | Exterior sound
8 |Left trailer hitch light 14 | Right headlight
9 |Trailer hitch socket 15 [Left headlight
10 | Sport differential Fuse panel (5) (red)
11 | Exhaust treatment No. | Equipment
Fuse panel (8) (brown) 1 |Active suspension
No. | Equipment 2 |Service disconnect switch
1 | Driver assist systems control module 3_ | Refrigerator
2 |Rear Audi phone box 4 | Electric motor
3 | Rear seat adjustment 5 | Brake system
4 |Side assist 6 |High-voltage battery water pump
5 | Rear seat entertainment 7 |Interior climate control
6 |Tire pressure monitoring system 8 |A/C compressor
7 | Emergency call system 9 | Auxiliary battery control module
g | Parking heater radio receiver, fuel tank 10 |High-voltage battery
monitoring 11 |High-voltage battery
9 |Automatic transmission selector lever 14 | Thermal management
10 |TV tuner, data exchange control module 15 | Thermal management
11 | Vehicle opening/start (NFC) Fuse panel © (white)
12 | Garage door opener No. Equipment
13 | Rearview camera, peripheral cameras 1 | Reamecenter armrest heanng
14 | Central locking, tail lights 2 | Rear sliding sunroof
15 | Left rear seat adjustment 3 | CD/DVD player
16 trent belt tensioner on front passenger's 5 lac socket
6 | Passenger’s side rear safety belt tensioner
Fuse panel (4) (black) 7 |Front center armrest heating
No. | Equipment 8 |Rear footrest heating
Seat ventilation, rear seat heating, rear- 11 |Rear Seat Remote
1 |viewsmirror,.cefrigerator, diagnostic:con- 12 |Driver’s side rear safety belt tensioner
nector
2 |Gateway control module (communication) Bulbs
3 |Sound actuator
4 | Transmission heating valve Cs
5 | Engine start, electric motor Your vehicle is equipped with maintenance-free
7 |Active accelerator pedal headlights and tail lights. However, if a light bulb >

330

Index

Auxiliary climate control................ 108
Average consumption. . . vico.. s sccwe oe ein 16
Average'speed 5. 5 i cess ecu s eceen sc eae 16
B
Bag: HOOKS’: « sexs « v saves 5 & wee + ¥ ewe & & eee 99
Battery
Charge levelindicator.................. 12
Charging (12 Volt vehicle battery)....... 286
High-voltage battery..............000- 136
Vehicle battery (12 Volt)............... 284
Winter operation (12 Volt vehicle battery) . 285
Battery (vehicle)
refer to High-voltage battery........... 136
Block route... 2.6.6... cece eee eee eee 234
BLOWERS. «cress uv sence 0 « samen e « coneaae « o scatings 105
Bluetooth
Audio player..............0 0-00 e ee eee 252
Connecting acell phone............... 200
Deleting adevice.......... cece ee ee eee 268
Device overview...............0.0000. 268
Disconnecting a device................ 268
Displaying profiles.................... 268
Searching foradevice..............05. 268
Selecting adevice...............-.00. 268
Specifying’a favorite weiss e scsive os sues e 268
BOOS: s ¢ wars 5 = ova 6 2 sue ye HeUR oe EGE 16
Boost function sacs ss sees 3 ¢ cepa yo vees oe 116
Boost
pressure indicator................. 16
Brake fluid
Checking the brake fluid level........... 283
Brak@Siovn: + « seuss ¥ x sus ¢ 2 ees 2 o eae Fe ee 123
Brakeiassist's cscs 2 sscmws ve asco sw aan 3 133
Brake fluid... 0... eee eee eee eee 283
Emergency braking function............ 125
AO Becca a a commas oo a amasoes wx atoms amare © Se 126
New brake pads.............0-. eee ee 123
Break-in security feature..............0.. 46
Breaking in
New brake pads..............---0000- 123
NGWtIRGS:: « x zaxus x x soups 4 ¥ eons Fe eee ge 296
Browser
refer to Media center..........0.eee0us 256
Bulb'replacement cs + « sews a 2 exis xe ewe 3 330
Business: address): s « can x s gem as caw aca 234
344
C
California Proposition 65 Warning........ 275
Battery Specific-ces s cose sv eam 2s wees s 285
CALLLISt®s « meee ¢ 9 ewan & Hatem & E Rae gS 204, 206
Cameras... 2... eee eee 155
Locations wis « ¢ caren 5 ¢ sare se eee es ews 156
Capacities
Puteltanike. « swasaue x ancasnsos e anomees 2 a anawnme @ x a 342
Washer fluid reservoir................. 342
Cargo net... .. cece cece eee ee eee eee 101
Caw ROY ies cosens ao eveaiee a © crear « @ eames @ aoe 47
Car phone
Serial number (IMEI) ...............005 211
SWItChING GN: cen « = scum ¢ : neue & 5 woe e ge 211
Carwash... . 2... eee eee eee eee 309
Catalytic converter..............-00000- 274
Cell phone
refer to Telephone............00eee 00 200
Cell phone compartment
refer to Audi phone box............... 202
Central lOCKING ss « « saves 5 « eee sy eee 2 ees 43
AUtOLOGKS. & accu + anasies x wee + coum oe oem 43
Convenience key............0e ee eeeeeee 48
Convenience opening and closing......... 54
Luggage compartment lid............... 50
Mechanically unlocking and locking....... 46
M@SSAQES « sees i eee8 bv ose ey Pe 8s ee 45
Remote control key.... 20... . eee seen eee 48
Setting ..... 6... eee cece eee eee 44
NGNICLE-KEY scien & & gece s & ets 3 ¢ Saree & x eae 48
Central locking switch............0e ee eee 45
Ceramic brakes............ 0.0 .00000005 123
Certification... 0... eee eee eee 339
Changing light bulbs................... 330
Charging
refer to Power SOUrCES...... eee ee eee ee 97
Charging clip
refer to Wall mount clip............... 150
Charging display............... 0.0 ee 140
Charging the battery (mobile devices) . 202, 254
Charging time............. cee eee eee ee 137
Child safety lock
Climate control system controls inthe rear. 53
POWEr WIN OWS: 5 & exes 5 2 awe se cee & 6 53
Rear GOONS isi: 3 © cee 2 o cena + wave eo ete 53

Index

Ww
Wall mount clip................0000005 150
Warning lights
refer to Indicator liGhts 2s « ¢ ows st pees va 7

CLEARING! « + cusses oo ancien + came © sezens 6-6 Ht 311
Glossary of tire and loading terminology .. 292
Loose wheel warning.............s0008 304
Replacing waives & messes wo scenes eo aecueme se sxc 319
Tire pressure monitoring system........ 307
Tires and vehicle load limits............ 301
WIHeeLWIenchis « sais: «2 one s & save a x cerns 316
Wi-Fi
Hotspotsettingsi. s ¢ sae x ¢ sees oo caw = 221,
Online Media « « scsss x 6 namie «6 cme & 6 anes 252
Using ahotspot............. 0c eee eee 217
Wild animal recognition................ 163
Window and mirror heating............. 109
Windows
Child safety lock.............0.-.-00 eee 53
Cleaning and removing ice............. 311
Convenience opening and closing......... 54
Defrosting......... cece eee eee 106
Opening and closing................45. 54
Power wind owS-sc . «ssc ao mee ve eee eo 54
Windshield
Cleaning... .. cece eee eee eee eee 68
also refer to Windshield................ 68
Windshield washer system........... 68, 287
Reservoir capacity’: « « sasjs ys sues yo tees e 342
Windshield wipers................000005 68
Winter operation
Auxiliary climate control............... 108
GaP WASHES «cusses « « seoewe + « aieeaue © 0 enemas © ane 309
Cooling systeM.......... 00 cece ee eee 281
Defrosting the windows............... 106
Rear window defogger..............-. 106
Removing ice from windows............ 311
S@at MEAtiniG’s + sens « x wave: & e Hee = ¥ ewes 106
SMOWICHAIMS reise & avacous a a scanner a aeesine «8 ave 305
Steering wheelheating................ 108
Surface heating wicws s sees ss pawe 2 wees 107
356
THRO Siiscs ss cacuans vo cxneons +o coowaine w H cuamane +H ona 305
Vehicle battery (12 Volt)............... 285
Windshield washer system............. 287
WIRREP RIGS ¢ scan + 5 noms 2 owes o Bae a oe 305
Wiper blades
ChanGing' =: = + sme « » sews =o eee & o eee x 69
Cle ARMING bcs ss ssaaus vv isos v epazeas waa ew a8 69
Wireless CarPlay
refer to Audi smartphone interface...... 264
Wireless charging
Audi phone box............-..0000005 202