2020 AUDI A3 heater

8V2012721BK
Child safety



as possible, before installing the forward-
facing child restraint.
— Always make sure that the safety belt upper
anchorage is behind the child restraint and
not next to or in front of the child restraint
so that the safety belt will be properly posi-
tioned.
— Always make sure that nothing prevents the
front passenger's seat from being moved to
the rearmost position in its fore and aft ad-
justment range.
— Always make sure the backrest is in an up-
right position.
— Never place or use any electrical device
(such as a laptop, CD player, electronic
games device, power inverter or seat heater
for child seats) on the front passenger seat
if the device is connected to the 12-volt
socket or the cigarette lighter socket.
— If a seat heater has been retrofitted or oth-
erwise added to the front passenger seat,
never install any child restraint system on
this seat.
— Make sure that there are no wet objects
(such as a wet towel) and no water or other
liquids on the front passenger seat cushion.
— Never place objects on the seat (such as a
laptop, CD player, electronic games device,
power inverter or seat heater for child
seats). These may influence the electrical
capacitance measured by the capacitive pas-
senger detection system and can also fly
around in an accident and cause serious per-
sonal injury.
— Make sure that the PASSENGER AIR BAG
OFF light comes on and stays on all the time
whenever the ignition is switched on.
— If the PASSENGER AIR BAG OFF light does
not come on and stay on, immediately in-
stall the forward-facing child seat at a seat-
ing position on the rear seat and have the
airbag system inspected by your authorized
Audi dealer.
— Take the child restraint off the front passen-
ger seat and install it properly at one of the
rear seat positions if the PASSENGER AIR
BAG OFF light does not stay on whenever
the ignition is switched on.

Booster seats and safety belts
Properly used booster seats can help protect
children weighing between about 40 lbs. and 80
lbs. (18 kg and 36 kg) who are less than 4 ft. 9
in. (57 inches/1.45 meters) tall.

B4H-0275



Fig. 230 Rear seat: child properly restrained in a booster
seat
The vehicle's safety belts alone will not fit most
children until they are at least 4 ft. 9 in. (57 in-
ches/1.45 meters) tall and weigh about 80 lbs.
(36 kg). Booster seats raise these children up so
that the safety belt will pass properly over the
stronger parts of their bodies and the safety belt
can help protect them in a crash.
> Do not use the convertible locking retractor
when using the vehicle's safety belt to restrain
a child on a booster seat.
> The shoulder belt must lie as close to the cen-
ter of the child's collar bone as possible and
must lie flat and snug on the upper body. It
must never lie across the throat or neck. The
lap belt must lie across the pelvis and never
across the stomach or abdomen. Make sure the
belt lies flat and snug. Pull on the belt to tight-
en if necessary.
> Applies to: vehicles with safety belt height ad-
justment: If you must transport an older child
in a booster seat on the front passenger seat,
you can use the safety belt height adjustment
to help adjust the shoulder portion properly.
> Secure unused safety belts on the rear seat
=> page 284.
Children up to at least 8 years old (over 40 Lbs or
18 kg) are best protected in child safety seats de-
signed for their age and weight. Experts say that
the skeletal structure, particularly the pelvis, of >
287

Wheels

Glossary of tire and loading
terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto-
matic transmission, power steer-
ing, power brakes, power win-
dows, power seats, radio, and
heater, to the extent that these
items are available as factory-in-
stalled equipment (whether in-
stalled or not).
Aspect ratio
means the ratio of the height to
the width of the tire in percent.
Numbers of 55 or lower indicate a
low sidewall for improved steer-
ing response and better overall
handling on dry pavement.
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the rim.
Bead separation
means a breakdown of the bond
between components in the bead.
322
Cord
means the strands forming the
plies in the tire.
Cold tire inflation pressure
means the tire pressure recom-
mended by the vehicle manufac-
turer for a tire of a designated
size that has not been driven for
more than a couple of miles (kilo-
meters) at low speeds in the three
hour period before the tire pres-
sure is measured or adjusted.
Curb weight
means the weight of a motor ve-
hicle with standard equipment in-
cluding the maximum capacity of
fuel, oil, and coolant, air condi-
tioning and additional weight of
optional equipment.
Extra load tire
means a tire designed to operate
at higher loads and at higher in-
flation pressures than the corre-
sponding standard tire. Extra load
tires may be identified as “XL”,
“xl”, “EXTRA LOAD”, or “RF” on
the sidewall.

Fuses and bulbs


No. | Equipment No. | Equipment

Clutch sensor, engine start, high-voltage
F49 3
battery, power electronics

F52 F53 Level control system control module


Rear window defogger

The power seats* are protected via circuit break-
ers that automatically switch on after a few sec-
onds after the overload has been reduced.
Fuse assignment - Engine compartment

RAZ-0794)
1 0
&
F:}
vi
6
5
4
5}


Fig. 282 Engine compartment: fuse assignment


No. | Equipment
F3 | Engine control module
FA Engine components, engine cooling, aux-
iliary heater, exhaust treatment

Engine components, fuel tank system
(diesel), CNG cut-off valve
Brake light switch
E5

Fo

Engine components, water pumps, tank
F7 ; . ee cae
system (gasoline engine), electrification

F8
F9
Heat oxygen sensor

Engine components, exhaust door, glow
time control module

F10 | Fuel control module, fuel pump

362
F13 | Transmission fluid pump

F15 |Horn

Power and control electronics, engine
components, ignition coil, options mod-
ule
F1l6

Electronic Stabilization Control (ESC), en-
F17
gine control module

Terminal 30 (voltage reference), battery
F18
es
monitoring

FIO F20
F21
Windshield wipers

Anti-theft alarm system

Automatic transmission

Terminal 50 diagnosis, engine control
F22
module

F23 | Engine start

Vacuum pump, water pump, high pres-
F31. 2
sure pump, fuel injectors

F33
F34
F35
F36
F37
Brake pressure reservoir, recuperation

Brake booster

Climate control system

Left front headlamp

Parking heater


F38 | Right front headlamp

Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace any bulbs for
you.
It is becoming increasingly more and more diffi-
cult to replace vehicle light bulbs since in many
cases, other parts of the car must first be re-
moved before you are able to get to the bulb.
This applies especially to the light bulbs in the
front of your car which you can only reach
through the engine compartment.
Sheet metal and bulb holders can have sharp
edges that can cause serious cuts, parts must be
correctly taken apart and then properly put back
together to help prevent breakage of parts and >

Emergency situations

8. Clamp the other end of the black jump start
cable only to the ground point @) on your ve-
hicle >@.
9. Route the jump start cables so they cannot
get caught in the moving parts in the engine
compartment.
Starting the engine
10. First start the engine in the vehicle giving the
charge and let it run at idle.
11. Now start the engine in the vehicle with the
drained vehicle battery and wait two to three
minutes until it “runs smoothly”.
12.
procedure after 10 seconds and then repeat
it after approximately 30 seconds.
13. In the vehicle that is being jump started,
switch the heater fan and rear window de-
froster on to reduce any voltage peaks that
may occur when disconnecting the jumper ca-
bles. The headlights must be switched off.
While the engines are running, remove the
cables in reverse order from the way they
were installed, as described in > page 365.
Make sure the cables do not get caught in
moving engine components.
Fold the cover back on the battery correctly.
Switch the heater fan and rear window de-
froster off.
14.
15. 16.
If the engine does not start, stop the starting

ZX WARNING
— Do not touch the non-insulated parts of the
terminal clamps. The cable must also not
come into contact with vehicle components
that conduct electricity when it is connected
to the positive terminal. This can cause a
short circuit.
— The plugs on the battery cells must not be
opened.
— Keep ignition sources (such as open flames,
burning cigarettes, etc.) away from the vehi-
cle batteries to reduce the risk of an explo-
sion.
— Route the jump start cables so they cannot
get caught in the moving parts in the other
vehicle's engine compartment.

366
C@) Note
Do not use the negative terminal on the vehi-
cle battery for jump starting. A malfunction
could occur in the vehicle electrical system.
— Please note that the connecting process de-
scribed below for the jump start cables is in-
tended for when your vehicle is being jump
started.
G) Tips
Make sure that the connected positive termi-
nal clamps have sufficient contact with metal.
RS models: jump starting
Applies to: vehicles with conventional drive system
Both jump start cables must be connected in th
correct order.
Fig. 285 Engine compartment: connectors for a charger
and jump start cables
Fig. 286 Connecting the jump start cables
ie
2 a rte}
S| 3 & co

Jump start points are located on the left side of
the engine compartment instead of the vehicle
battery > fig. 285. Open the cap on the positive
terminal. The procedure for connecting jump
start cables that is described next is designed to
help jump start your vehicle.

>

8V2012721BK
Emergency situations

Follow the information about the vehicle battery
=> page 315.
Preparations
1. Read the following carefully > page 364,
Preparation.
2. Set the parking brake and place the selector
lever in the "P" position.
3. Turn the ignition and electrical equipment off
in both vehicles.
Connecting/disconnecting the jump start
cable
4. Open the cover on the positive terminal.
5. Clamp the end of the red jump start cable to
the positive terminal @ > page 365, fig. 284
on your vehicle >@) in Preparation on
page 364.
6. Clamp the other end of the red jump start ca-
ble to the positive terminal (2) on the vehicle
battery providing the current.
7. Clamp the black end of the jump start cable
preferably to the ground point, or to the
negative terminal of the vehicle battery @)
on the vehicle providing the current.
8. Clamp the other end of the black jump start
cable only to the ground point (4) on your ve-
hicle.
9. Route the jump start cables so they cannot
get caught in the moving parts in the engine
compartment.
Starting the engine
10. First start the engine in the vehicle giving the
charge and let it run at idle.
11. Now start the engine in the vehicle with the
drained vehicle battery and wait two to three
minutes until it “runs smoothly”.
12. If the engine does not start, stop the starting
procedure after 10 seconds and then repeat
it after approximately 30 seconds.
13. In the vehicle that is being jump started,
switch the heater fan and rear window de-
froster on to reduce any voltage peaks that
may occur when disconnecting the jumper ca-
bles. The headlights must be switched off.
14. While the engines are running, remove the
cables in reverse order from the way they
were installed, as described in > page 365.
Make sure the cables do not get caught in
moving engine components.
15. Close the cap on the positive terminal.
16. Switch the heater fan and rear window de-
froster off.

ZA\ WARNING
— Never connect the jump start cable directly
to your vehicle battery. Only use the connec-
tions in the engine compartment.
— Do not touch the non-insulated parts of the
terminal clamps. The cable must also not
come into contact with vehicle components
that conduct electricity when it is connected
to the positive vehicle battery terminal. This
can cause a short circuit.
— The plugs on the battery cells must not be
opened.
— Keep ignition sources (such as open flames,
burning cigarettes, etc.) away from the vehi-
cle batteries to reduce the risk of an explo-
sion.
— Route the jump start cables so they cannot
get caught in the moving parts in the other


vehicle's engine compartment.
@) Note
Please note that the connecting process previ-
ously described for the jump start cables is in-
tended for when your vehicle is being jump
started.
(i) Tips
Make sure that the connected jump start ca-
bles have sufficient contact with metal.

Towing with a tow truck
General hints
Your Audi requires special handling for towing.
The following information is to be used by com-
mercial tow truck operators who know how to op-
erate their equipment safely.
— Never tow your Audi. Towing will cause dam-
age to the engine and transmission. >
367