2020 AUDI A4 charging

8W1012721BB
Checking and Filling

a Electrical system: malfunction! Safely stop
vehicle
Do not continue driving and switch the engine off
=> AX. See an authorized Audi dealer or authorized
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
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. Stop driving and
switch the engine off. See an authorized Audi
dealer or authorized Audi Service Facility for
assistance.

Battery
Peale mee eee scl)
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 224, Lead
battery or > page 224, Other battery types
— Auxiliary battery (for example, for recuperation
or optional equipment) > page 224, 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 reduced or switched off
= page 99. Some convenience functions, such as
interior lighting or power seat adjustment, may
not be available under certain circumstances.
These convenience functions will be available
again once you switch the ignition on and 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 225. Contact an authorized Audi dealer or
authorized Audi Service Facility for more infor-
mation.
Winter operation
Cold weather places higher demands on the bat-
tery. This results in reduced starting ability. Have
the battery checked by an authorized Audi dealer
or authorized Audi Service Facility before cold
weather begins.

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 the charging cable or jump
start cable directly to your vehicle battery. >

223

Checking and Filling


Only use the connections in the engine com-
partment > page 225.

A 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 225, Charging the 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.
1M F-Te Moyea]
Explanation of warnings:

Always wear eye protection.

Battery acid is highly corrosive. Always
wear protective gloves and eye protection.

Fire, sparks, open flame, and smoking are
forbidden.
A highly explosive mixture of gases can
form when charging batteries.


Always keep children away from battery
acid and the battery.

Always follow the instructions in the oper-
ating manual.

5e@
>
@
LE
©

@) For the sake of the environment
~ ¥ Lead-acid batteries must be disposed of
using methods that will not harm the environ-

224
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.
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-
CQ | 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
<2 Hf 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.

8W1012721BB
Checking and Filling

a ing the battery

Fig. 166 Engine compartment: connectors for a charger or
jump start cables
Note the safety precautions > page 214, General
information, > A\ in Battery general informa-
tion on page 223 and > /\.
Requirement: only use chargers with a maximum
charging current of 14.8 volts. The battery ca-
bles remain connected.
The battery is located in the engine compart-
ment. The ground point ©) is always located on
the vehicle body.
> Switch off the ignition and all electrical equip-
ment.
> Open the hood > page 215.
> Press the release lever on the positive terminal
and fold the cover upward > fig. 166.
> Clamp the charger terminal clamps to the jump
start pins according to the instructions. (Pin un-
der the cover = “positive”).
> 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 215.

ZX WARNING
— Never connect the charging cable directly to
your vehicle battery. Only use the connec-
tions in the engine compartment
=> page 225.

— 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.

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

B8W-0125


Fig. 167 Engine compartment: washer fluid reservoir cap
Follow the safety precautions > page 214, Gener-
al information.
The windshield washer fluid reservoir © contains
the cleaning solution for the windshield and the
headlight washer system > fig. 167, > page 216.
The reservoir capacity can be found in
=> page 278.
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.
225
>

Fuses and bulbs






































Fuse panel @) (brown) Fuse panel (0) (black)
15 |Ignition coils, heated oxygen sensors No. | Equipment
16 | Fuel pump Front seat electronics, seat ventilation,
= rearview mirror, rear climate control sys-
Fuse panel @) (red) | era controls, windshield defogger, Gate-
No. | Equipment way diagnostics
Anti-theft alarm system 2 Gateway diagnosis, vehicle electrical sys-
2 |Engine control module tem control module
3 [Left front seat electronics, lumbar sup- 3 | Sound actuator/exhaust sound tuning
port, massaging seat 4 |Clutch pedal position sensor
4 Automatic transmission selector mecha- 5 | Engine start, emergency shut-off
Sct 6 | Gateway
5 [Horn 7 |USB charging port
6 | Parking brake 8 | Garage door opener
7 | Gateway control module 5 Adaptive cruise control, distance regula-
8 | Roof electronics control module tion
9 |Emergency call system 11 |Video camera
10 | Airbag control module 12 | Right headlight
11
| Electronic Stabilization Control (ESC) 13 | Left headlight
12 | Diagnostic connector, light/rain sensor 14 | Transmission fluid cooling valve
13 | Climate control system 15 | Alarm and hands-free calling system
14 | Right front door control module Fuse panel © (red)
15 |A/C compressor ae
No. | Equipment
Fuse panel (©) (black) 1. |Ignition coils
No. | Equipment 2 |Compressor clutch, CNG system
Front seat heating 5 |Left headlight
2 |Windshield wipers 6 |Automatic transmission
Left headlight electronics 7 |Instrument panel
4 Panoramic glass roof / sliding/tilting sun- 8 | Climate control system fresh air blower
roof 9 | Right headlight
5 |Left front door control module 10 | Dynamic steering
6 | Sockets 11 | Engine start
7 Door control module, right rear window
regulator
AWD control module
Right headlight electronics
10 Windshield washer system/headlight
washer system
rT Door control module, left rear window reg-
ulator
12 | Parking heater

266

8W1012721BB
Fuses and bulbs
Fuse assignment - Left side of the luggage
compartment

Fuse assignment - Driver's side of the
(ole 4o}ig

Fig. 189 Driver side cockpit: fuse panel with plastic bracket

Fuse panel

No. | Equipment




1 |Vehicle opening/start (NFC)
2 | Telephone, mobile device charger
4 |Head-up display
5 |Audi music interface, USB charging port
6 Front climate control panel, instrument
Fig. 190 Left side of the luggage compartment: fuse panel
n panel
with plastic clip
7 |Steering column lock

Infotainment system display Fuse panel @) (black)
9 |Instrument cluster No. | Equipment
Windshield defroster
Windshield defroster

10 | Infotainment unit

11 | Light switch, switch module

12 | Steering column electronics Suspension control

Particulate matter sensor for climate con-
trol system
13 Automatic transmission

Rear window defogger
14 | Infotainment system Rear seat heating
Left tail lights
10 | Airbag control module

WOl/OINID|M|)WInN 16 | Steering wheel heating


Luggage compartment lid central locking,
11 | fuel filler door, luggage compartment cov-
er

12 | Luggage compartment lid control module

Fuse panel (®) (red)
No. | Equipment


6 | Battery power interrupt

267

Fuses and bulbs


Fuse panel © (brown)
No. | Equipment


Telephone, mobile device charging func-


AN WARNING
If you still would like to try replacing the
bulbs in your vehicle yourself, read the warn-


6 |Tire pressure monitoring system
7 |Vehicle opening/start (NFC)
Auxiliary heating radio receiver, smart
module (fuel tank)



10 |TV tuner, gateway

11 | Auxiliary battery control module

12 | Garage door opener

13 | Rearview camera, peripheral cameras
14 | Right tail lights
16 | Right safety belt tensioner


Fuse panel (E) (red)
No. | Equipment


Exhaust treatment
Trailer hitch (right light)
Trailer hitch
Trailer hitch (left light)
Trailer hitch (socket)
10 |Allroad sport differential
11 | Exhaust treatment




Wl)
OIN|
Mm]
w


Bulbs
Replacing bulbs
Having a bulb replaced by an authorized Audi
dealer or authorized Audi Service Facility in cases
of doubt is recommended. These facilities have
the correct tools and replacement parts as well
as the required technical knowledge.
LED lights*
Your vehicle is equipped with maintenance-free
headlights and tail lights. However, if a light bulb
needs to be replaced, please contact an author-
ized Audi dealer or authorized Audi Service Facili-
ty.
268
2 |,
tion ings regarding working in the engine compart-
3 Right front seat electronics, lumbar sup- ment > A\ in General information on
port page 214.
4 |Side assist
@) Note
Make sure the covers are fitted correctly on
the headlight and tail light so that no water
will leak in from the outside and the light
function will not be impaired.

8W1012721BB
Data privacy

@) Tips
— The following interfaces are not affected by
changes to the privacy settings: Bluetooth,
Bluetooth Low Energy (BLE), Wi-Fi, Audi
smartphone interface (ASI), Near Field
Communication (NFC), charging communi-
cation (high-voltage system), Electronic Toll
Collect (ETC), On-Board Diagnostic System
(OBD) if equipped.
— If the maximum privacy settings are switch-
ed on, your vehicle may not receive security
updates and certificates for establishing an
encrypted connection, depending on vehicle
equipment. In order to receive security up-
dates and certificates, switch the maximum
privacy settings off for at least ten minutes
every six months. Make sure that your vehi-
cle is connected to the Internet. A symbol in
the MMI status bar indicates if the required
data connection is available > page 20.
— If the transmission of data is limited, it will
have the following effects on the exchange
of data for Audi connect services and emer-
gency calls, if equipped:
— The emergency call function will remain
available without restrictions and will con-
tinue to transmit data.
— If an online roadside assistance call is ini-
tiated, no data will be transmitted, but a
call will be made.
—If the Geofencing Alert, Speed Alert,
and/or Valet Alert services have been acti-
vated by the key user, then they will re-
main available without restrictions and
continue to transmit data.
— Stored destinations (favorites, last desti-
nations) are only stored in the vehicle. If
you allow transmission of data again,
these destinations will be synchronized via
the myAudi account. To prevent synchroni-
zation of destinations, delete the destina-
tions before you allow data to be trans-
mitted again.
Applies to: vehicles with Audi connect Infotainment
AUDI AG collects, uses, stores and shares your
personal information, such as contact data, vehi-
cle data, usage data, driving data and precise ge-
olocation, in order to provide you with the prod-
ucts and services you have purchased or request-
ed, and for a number of other purposes, for ex-
ample, to track quality issues, to performance
and safety, to meet our internal compliance or le-
gal requirements and to market to customers
and potential customers. For a more complete
list of the data we collect, how we use it and with
whom we share it, please visit your Audi nation-
al/sales region website at www.audi.com.
The collection, use and sharing may vary depend-
ing on your model and model year, your subscrip-
tion status, or the service offering. For example,
collection, use and sharing may vary between
Audi connect services, if you have designated a
key user, or if you are driving a model equipped
with persistent data logging. Please review the
complete Privacy Statement to understand our
data handling practices with respect to a particu-
lar service.
You can find additional information about our da-
ta privacy practices in your MMI.
> Applies to: MMI: On the home screen, select:
SETTINGS > General > Legal notes > About
Audi connect.
Information about our privacy practices in con-
junction with the mobile Audi connect applica-
tion can be found in the Application’s Privacy
Statement.
For additional information about the privacy
practices relating to Audi connect, myAudi, or
other websites, applications or online services as
well as your obligations with respect to using
these services, and for additional information re-
garding Audi connect terms and conditions,
please visit your Audi national/sales region web-
site at www.audi.com.
271

Index

Bluetooth
Audio player... . 2... cece eee eee eee eee 195
Connecting a device. .......00. eee eeee 207
Connecting a mobile phone............ 158
Deleting
adevice................00 00 208
Device OVervieW secs s «sees 3 + eawe ss eee 207
Disconnecting a device.............00. 207
Displaying profiles..................0. 208
Selecting a device s seas ss seg ts ees 2 3 207
Specifying a favorite.................. 208
BoOStss « « cosy: ¢ ¢ eyes 5 © sees § o Rewn ¢ a ees ¢ e 14
Boost pressure indicator................. 14
Brake fluid

New brake pads..............---000-- 101
Break-in security feature..............0.. 33
Breaking in
New brake pads..............-..00005 101
N@W tiCGSs « s eaves = ¢ says + © eure 2s eee Ge 234
Browser
refer to Mediacenter................0. 198
Business address.............--000000- 183
Cc
California Proposition 65 Warning........ 214
Battery specifiers « a sno 2 wrens © somnne wo 9 224
CALLLISE o ssc x = vmaaie 2% swavese vx wena eae 162, 164
Cameras
Coverage areaS... 1.2... . eee eee eee 115
Locations...................0.000005 116
Capacities
FUeL TANK: » sew ss ewe 2 9 aes 2 dame Be Be 278
Washer fluid reservoir..............--. 278
Cargoimatis « « wseon «x sows ee ies 4 o sonne & o oe 85
Car kiss ¢ s anon oo ese y 2 ease oo oo oe ees 34
Car phone
Serial number (IMED) .............00005 165
GCarwashiis ¢ savin se essa se ewe a cme v6 ores 247
Catalytic converter. .... 06s. cse eee ee eee 213
280
Central locking:ers « «comes + + seca sa emai eo ae 30
Auto Lock... 2. eects 30
Convenience-key « ess: ¢ wucwu s eewn ss rows e 35
Convenience opening and closing......... 42
Luggage compartment lid............... 37
Mechanically unlocking and locking....... 32
MeSSAGES « scsi «onesie so eae » oem av wee 32
Remote control key..............-.000- 35
SECUMG’ s 2 wars 5 x saaw £ HEME FE HOR F 5 oe 31
Vehicle key cies so essen 6 o enone so cxere & & sree 35
Central locking switch.............000005 32
Ceramic brakeSica: 2 snau so gem < o meme 2 101
Certificationies + s saws 4 s sane x x eae ge RoR 275
Charging
refer to Power sourceS...........-22+--- 78
Charging the battery
Mobilerdevicests « « isseve +o scaueue + x ssc > oo 196
USB... eens 160
WI£CLESS': « sues 5 5 semen 5 2 een ce oe ose 160
Child safety lock
Climate control system controls inthe rear. 41
PoweriwindOwSvernce « «sos + sown ow anacmn 8 41
Rear doors... 2... eee ee eee 41
Child safety seats..... 0.0... cee ee eee eee 72
Securing to the top tether anchor........ 76
Securing with a safety belt.............. 75
Securing with LATCH...........-.000005 74
Cleaning... .. ccc cece eee eee eee 247
Cleaning Alcantara’. «cscs cows cee ee 250
Cleaning artificial leather............0.. 250
Cleaning carbon components........ 249, 250
Cleaning controls’: » sees ss sees y es eeen sees 249
Cleaning decorative parts/trim........... 249
Cleaning exhaust tail pipes.............. 249
Cleaning plastic parts.................. 249
Cleaning textiles................000005 250
Climate control system..............0005 87
also refer to Automatic climate control sys-
OTs: © = wteung o & seyem u 2 eens & Y eeu «2 oe x 87
Climate control system controls in the rear
Child safety lock = cscs «2 wane » wane » eusven 41
Closing
Automatic luggage compartment lid...... 38
Convenience closing..............+505% 42
HOOG sx o sees 2s semi oo wen 6 Basa v oreo 215
Luggage compartment lid.............0. 37
Luggage compartment lid with foot motion . 39