2020 AUDI A6 auxiliary battery

4K0012721BD
Checking and Filling

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.

Battery
Praia Ueeece(el)
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 242, 12
Volt vehicle battery or > page 242, Other bat-
tery types
— Auxiliary battery (for example, for recuperation
or optional equipment) > page 242, 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
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 243. 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.

Z\ 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 243.

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.

CG) 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”
241
>

4K0012721BD

Fuses and bulbs


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

Fuse panel (@) (black)


C) 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.
Fuse assignment - left footwell
RAZ-0195
ay
WOlLOINI
DI
M)WIN|
kr
i
Toren
BARRIER P ala


Fig. 184 Left footwell: fuse panel with plastic clip
The fuse assignment @) and @) is in the opposite
order on right-hand drive vehicles.
4 |Engine components

Brake light sensor

Engine valves

Engine components

Engine components

WOl/OINI
Aun
Engine components

10 | Oil pressure sensor, oil temperature sensor

11 | Engine components

12 | Engine components

13 | Engine cooling

14 | Engine control module, fuel injectors

15 | Engine sensors

16 | Fuel pump

Fuse panel @ (red)

z ° . | Equipment

Anti-theft alarm system

Engine control module

Left front lumbar support

Horn

Parking brake

Gateway control module (diagnosis)

Roof electronics control module

Driver assistance systems control module

BR o Airbag control module

Electronic Stabilization Control (ESC), An-
i
ti-Lock Braking System (ABS)

12 | Diagnostic connector, light/rain sensor

13 | Climate control system

14 | Right front door control module

Climate control system compressor, body
15 .
electronics

Auxiliary battery control module, brake
16 .
system pressure reservoir

Fuse panel (8) (red)


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

No. | Equipment

Engine ignition coils

Catalytic converter heating High-voltage heating, compressor

2 |Engine components


Engine mount


Engine components

A)
m\/
wir
Automatic transmission

285

4K0012721BD
Fuses and bulbs

Fuse assign uggage compa
[RAZ-0196


Fig. 186 Luggage compartment floor: fuse panel with


Fuse panel @) (red)
7 Hybrid remote-controlled interior climate
control
8 | Hybrid A/C compressor
9 |Auxiliary battery control module










10 | Hybrid high-voltage battery
11 | Hybrid charger
14 | Thermomanagement, water pump
15 | Thermomanagement control module
16 | Gateway
Fuse panel @) (brown)
No. | Equipment
1 | Driver assist systems control module
2 |Audi phone box, roof antenna
3 Front seat electronics, right lumbar sup-
port
4 |Side assist
5 |Rear climate control system control panel
6 |Tire pressure monitoring system
7 |Emergency call system
8 Parking heater radio receiver, fuel tank
monitoring
9 |Automatic transmission selector lever



10
TV tuner, data exchange and telematics
control module









plastic clip
Fuse panel ( (black)
No. | Equipment
3 | Passenger’s side rear safety belt tensioner
4 |Driver’s side rear safety belt tensioner
5 | Air suspension
6 |Automatic transmission
7 |Rear sliding sunroof, rear spoiler
8 | Rear seat heating
9 | Left tail light
10 | Front belt tensioner on driver's side
Luggage compartment lid central locking,
11 | fuel filler door, luggage compartment cov-
er















12 |Luggage compartment lid control module
Fuse panel (2) (red)
No. | Equipment
1 | Suspension stabilization control module
2 |Service disconnect switch
4 | Electric motor
5 | Brake system
6 |High-voltage battery water pump
11 | Vehicle opening/start (NFC)
12 | Garage door opener
13 | Rearview camera, peripheral cameras
14 | Central locking, right tail light
16 Front belt tensioner on front passenger's
side
Fuse panel @) (black)
No. | Equipment
Not assigned
Fuse panel 6) (red)
No. | Equipment
3 Exhaust treatment, sound actuator, AC
socket
4 |Rear climate control system control panel
5 |Right trailer hitch light

287