2018 AUDI Q3 relay

Fuses and bulbs
(D 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, cockpit
The fuse number is stamped into the plastic be­
low or above each fuse.
No. Equipment
1 LED headlight (left)
2 LED headlight (
right)
5 LED headlight (left)
6 LED headlight (right)
7 Steering lock
8 Convenience access contro
l module
9 Airbag control module, AIRBAG OFF
indi-
cator light
12
Transmission control module, selector
mechanism
Air quality sensor for cl imate control sys-
tern, heated w indow washer nozzles,~
button, reverse light,(®) button, oil level
13 sensor, climate contro
l system, seat occu-
pant detection system, seat heating, but-
tons in the center console, automatic dim-
ming mirror
Engine control module , quattro control
modu le, transmission control module,
14 brake lights, electromechanica
l steering,
Gateway control module, trai ler hitch con-
trol module, ESC control module, light
switch, damping control module
Headlight range control module, instru-
ment illumination, headlights (left, right),
15 diagnostic connector, crankcase housing
heater, a
ir flow sensor, socket relay, DC/
DC converter
16 Parking aid
17 Parking system rearview camera
18 TV tuner
19 Engine starter control, DC/DC converter
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No
. Equipment
20 E
SC contro l module, climate/heating con-
trol, special functions interface
21 Selector mechanism power supply
22 Interior monitoring
(®) button, front interior lighting buttons,
23 diagnostic connector, light
switch, light/
rain sensor, humidity sensor, emergency
call system
25 Headlight power supply
26 Rear window wiper
27 Starter system
28 Infotainment system
29 Supply for
the park ing system rearview
camera and TV tuner
30 Infotainment system
31 Infotainment system
32 Instrument cluster
33 Automatic dimming rearview mirror
36 Cigarette lighter, cockpit/luggage com
-
partment socket
37 Cockpit/rear socket 38 Transmission contro l module
40 Trailer hitch control module 41 Trailer hitch control module
42 Trai ler hitch control module
44 Rear window defogge r
4S Electromechanical parking brake control
module
46 Trailer hitch control module
47 quattro control module
48 Automatic luggage compartment lid con-
tro
l modu le
so Blowe r
51 Electromechanical parking brake control
module
52 BCM
53 Front seat heating
54 Panorama gla ss roof
55 Sunshade on the panorama glass roof
56 Contro l modu le for suspension control

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Engine compartment fuse assignment
The fuse number is stamped into the plastic be­
low or above each fuse.
No. Equipment
1 Transmiss ion supply
2 ESC
3 Horn
4 DC/DC
converter
5 BCM, battery data module
6 BCM (right)
7 Washer fluid pump
8 BCM (left)
9 Seat adjustment lumbar support
10 Glow time
control module, fuel pump,
heated oxygen sensor
11 Steering
column lever, multifunction
steer ing whee l controls
1 2 Cell phone adapter
13 En
gine control module
14 Engine control module
15 Gateway
16 Heated oxygen sensor, fuel pump, eng
ine
components
17 Engine components
18 Fue
l pump control module
19 Sound amplifier, DC/DC converter
20 Clutch pedal sensor, brake light sensor
22 Windshield wipers Radiator fan, engine components, coolant
23 recirculation pump, auxiliary
heater, fuel
pump relay coils
24 Ignition coils
25 Driver's door
control module (central lock-
ing, window regulators)
26 Front passenger's door control module
(centra
l locking, window regulators)
27 Term inal 15 supply
29 Power seat adjustment (driver,
front pas-
senger)
30 ESC
Fu ses an d bulb s
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 .
T his applies especially to the light bulbs in the
front of your car which you can only reach
through the engine compartment .
Sheet metal and bu lb holders can have sharp
edges that can cause serious cuts, pa rts must be
correctly taken apart and then properly put back
together to help prevent breakage o f parts and
long term damage from water that can enter
housings that have not been properly resealed.
For your safety, we recommend that you have
your authorized Aud i dea ler rep lace any bulbs fo r
you, since your dealer has the proper tools, the
correct bulbs and the expertise.
Gas di schar ge la mps (Xe no n ligh ts):
Due to the high electr ical voltage, have the bulbs
rep laced by a qualified technician. Headlights
with Xenon light are identified by the hig h volt­
age st icker.
LED headlights* require no maintenance . Please
contact your authorized Audi dea ler if a bulb
needs to be replaced.
_&. WARNING
Changing Xenon lamps wi thout the necessary
equipment can cause serious personal injury .
- Bulbs are pressu rized and can explode when
be ing changed. Potent ial ris k of injury!
- On veh icles equipped with gas disc harge
bu lbs (Xenon light) life-threatening injuries
can resu lt from improper handling of the
high-vo ltage portions of such lamps!
- Only your authorized A udi dealer or quali­
f ied workshop sho uld change the bulbs in
gas discharge lamps. There are parts with
sharp edges on the openings and on the
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Emergency situations
General
This chapter is intended for trained emergency
crews and working personnel who have the nec­
essary tools and equipment to perform these
operations.
Starting by pushing or
towing
CD Note
Vehicles with an automatic transmission
cannot be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine can be started by con­
necting it to the battery of another vehicle.
If the engine should fail to start because of a dis­
charged or weak battery, the battery can be con­
nected to the battery of
another vehicle, using a
pair of jumper cables to start the engine.
Jumper cables
Use only jumper cables of sufficiently large cross
section
to carry the starter current safely. Refer
to the manufacturer's specifications.
Use only jumper cables with
insulated terminal
clamps which are distinctly marked:
plus(+) cable in most cases colored red
minus(·) cable
in most cases colored black.
A WARNING
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal in­
jury. Follow the instructions below for safe
handling of your vehicle's battery.
-Always shield your eyes and avoid leaning
over the battery whenever possible.
-A dead battery can freeze at temperatures
around 32 °F (0 °C). If the vehicle battery is
frozen, you must thaw it before connecting
the jump start cables. If you do not, this in-
Emergency situations
creases the risk of an explosion and chemi­
cal burns. After jump starting the vehicle,
drive to an authorized Audi dealer or author­
ized Audi Service Facility immediately to
have the vehicle battery checked.
- Do not allow battery acid to contact eyes or
skin . Flush any contacted area with water
immediately.
- Improper use of a booster battery to start a
vehicle may cause an explosion .
- Vehicle batteries generate explosive gases.
Keep sparks, flame and lighted cigarettes
away from batteries.
- Do not try to jump start any vehicle with a
low acid level in the battery .
- The voltage of the booster battery must also
have a 12-Volt rating. The capacity (Ah) of
the booster battery should not be lower
than that of the discharged battery. Use of
batteries of different voltage or substantial­
ly different "Ah" rating may cause an explo­
sion and personal injury.
- Never charge a frozen battery. Gas trapped
in the ice may cause an explosion.
- Never charge or use a battery that has been
frozen . The battery case may have be weak­
ened.
- Use of batteries of different voltage or sub­
stantially different capacity (Ah) rating may
cause an explosion and injury. The capacity (Ah) of the booster battery should not be
lower than that of the discharged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS
qpage 155.
CD Note
-Applying a higher voltage booster battery
will cause expensive damage to sensitive electronic components, such as control
units, relays, radio, etc.
- There must be no electrical contact between
the vehicles as otherwise current could al­
ready start to flow as soon as the positive
(+) terminals are connected.
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