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Audi A3 Fuse Diagram (8L; 1997-2003)

09/01/2024
Fuse Box

In this article, we consider the first-generation Audi A3 / S3 (8L), produced from 1996 to 2003. Here you will find fuse box diagrams of Audi A3 and S3 1997, 1998, 1999, 2000, 2001, and 2002, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Fuse Layout Audi A3 / S3 1997-2003

 

 

Instrument Panel Fuse Box

 

Fuse Box Location

 

The fuses are behind a cover on the driver’s side.

 

Fuse Box Diagram

 

Assignment of the fuses in the instrument panel

No Amps Function/component
1 20A Left washer jet heater element
Right washer jet heater element
Driver side heated exterior mirror
Front passenger side heated exterior mirror
2 10A Front left turn signal bulb
Front right turn signal bulb
Left side mounted turn signal bulb
Right side repeater turn signal bulb
3 5A Illuminations: Glove compartment light, Operating and display unit for Climatronic air conditioning system
4 5A Number plate light
5 7.5A Operating and display unit for Climatronic air conditioning system
Cruise control system switch
Heated driver seat regulator
Heated front passenger seat regulator
Fresh air and air recirculation flap switch
Operating unit in steering wheel (up to 2002)
Temperature flap position switch
High pressure sender
Radiator fan control unit
Navigation system with CD drive control unit
Navigation operating electronics control unit
Parking aid control unit
Multifunction steering wheel control unit
Radio
Automatic anti-dazzle interior mirror
Electric mirror adjustment
6 5A Driver side interior locking switch
Central locking motor with control unit for interior lights switch-off delay and anti-theft alarm system
7 10A Tiptronic switch
Speedometer sender
Oil level and oil temperature sender
Starter inhibitor and reversing light relay
Left reversing light bulb
Right reversing light bulb
8 5A Telephone and telematics control unit
Mobile telephone operating electronics control unit
Telephone transmitter and receiver unit
9 5A Traction control system switch
Steering angle sender
ABS control unit
10 15A Engine management petrol engine (up to 2001):
Motronic control unit
Motronic current supply relay
Current supply relay for Simos control unit
10 5A Engine management diesel engine (up to 2001):
Diesel direct injection system control unit
10 10A From 2001:
Control unit in dash panel insert
Navigation operating electronics control unit
Radio
Central locking motor with control unit for interior lights switch-off delay and anti-theft alarm system
11 5A Oil level and oil temperature sender
Fuel pump relay
Control unit in dash panel insert
Alternator warning lamp
Handbrake warning lamp
Glow period warning lamp
Electronic power control fault lamp
Engine electronics warning lamp
Selector lever lock solenoid
Left headlight range control motor
Right headlight range control motor
12 7.5A Up to 2001:
Voltage supply - diagnosis
From 2001:
Navigation system with CD drive control unit
Mobile telephone operating electronics control unit
Telephone and telematics control unit
Telephone transmitter and receiver unit
Aerial amplifier for mobile telephone T16 - 16-pin connector, black, shelf centre console (diagnostic connector)
13 10A Left brake light bulb
Right brake light bulb
High-level brake light bulb
14 10A Door warning lamps control unit
Central locking motor with control unit for interior lights switch-off delay and anti-theft alarm system
Front interior light
Front passenger side illuminated vanity mirror
Driver side illuminated vanity mirror
15 5A Operating and display unit for Climatronic air conditioning system
Steering angle sender
Automatic gearbox control unit
Control unit in dash panel insert
16 10A Radiator fan control unit
17 7.5A Left lock cylinder heater element
Right lock cylinder heater element
18 10A Right headlight twin filament bulb (main beam)
Main beam warning lamp
19 10A Left headlight twin filament bulb (main beam)
20 15A Headlight range control regulator
Rear bulb monitoring device
Right gas discharge light control unit
Right headlight twin filament bulb (dipped beam)
Left headlight range control motor
Right headlight range control motor
21 15A Rear bulb monitoring device
Left gas discharge light control unit
Left headlight twin filament bulb (dipped beam)
22 5A Control unit in dash panel insert
Right tail light bulb
Right side light bulb
23 5A Control unit in dash panel insert
Left side light bulb
Left tail light bulb
24 20A Automatic intermittent wash and wipe relay
25 25A Operating and display unit for air conditioning system/Climatronic
Fresh air blower
26 25A Heated rear window
27 15A Rear window wiper and washer relay
Rear window wiper motor
28 15A/20A Fuel pump relay
29 15A Engine management petrol engine:
Motronic control unit
Motronic current supply relay
Simos control unit
Current supply relay for Simos control unit
Output stage
29 5A/10A Engine management diesel engine:
Diesel direct injection system control unit
30 20A Sliding sunroof adjustment control unit
31 20A Automatic gearbox control unit
Brake servo control unit
31 5A Four-wheel drive control unit
32 10A Engine management petrol engine:
lnjector, cylinder 1~4
32 30A Engine management diesel engine:
Diesel direct injection system control unit
33 20A Automatic intermittent wash and wipe relay
34 10A Engine management petrol engine:
Charge pressure control solenoid valve
Heater element for crankcase heather
Secondary air inlet valve
Variable intake manifold change-over valve
Turbocharger air recirculation valve
Inlet camshaft control valve 1
34 10A Engine management diesel engine:
Air mass meter
Needle lift sender
Exhaust gas recirculation valve
Charge pressure control solenoid valve
Variable intake manifold flap change-over valve
35 30A Trailer socket
36 15A Rear left fog light bulb
Left fog light bulb
Right fog light bulb
37 10A Up to 2001:
Control unit in dash panel insert
Navigation operating electronics control unit
Radio
Central locking motor with control unit for interior lights switch-off delay and anti-theft alarm system
37 20A Engine management petrol engine (from 2001):
Motronic control unit
Motronic current supply relay
Current supply relay for Simos control unit
37 5A Engine management diesel engine (from 2001):
Diesel direct injection system control unit
38 10A Driver side interior locking switch
Release button for rear lid lock cylinder
Ultrasonic sensor control unit
Central locking motor with control unit for interior lights switch-off delay and anti-theft alarm system
39 15A Hazard warning lights system:
Front left turn signal bulb
Front right turn signal bulb
Rear left turn signal bulb
Rear right turn signal bulb
Left side mounted turn signal bulb
Right side mounted turn signal bulb
Left turn signal warning lamp
Right turn signal warning lamp
40 20A Treble tone horn
Bass tone horn
41 15A Cigarette lighter
42 15A Navigation system tuner for TV
Aerial selection control unit
Radio
Amplifier
Amplifier with bass loudspeaker, on left in luggage compartment
Navigation system interface
43 10A Engine management petrol engine:
Air mass meter
Active charcoal filter system solenoid valve 1
Lambda probe heater
Lambda probe 1 heater after catalytic converter
43 10A Engine management diesel engine:
Clutch pedal switch
Brake pedal switch
Heater element for crankcase heather
Low heat output relay
High heat output relay
44 15A Heated cushion for driver seat
Heated backrest for driver seat
 
 
 
Engine Compartment Fuse Boxes
 

 

Fuse Box No1

 

The main fuse box is located on the battery.

 

No Description
S131 Heater elements
S132 Engine management
S133 Radiator fan 2
S134 Vehicle interior
S138 Alternator
S162 ABS (pump)
S163 ABS (valves)
S164 Radiator fan

 

Fuse Box No2

It is near brake master cylinder (front left, in plenum chamber).

 

No Amps

Function/component

1   Petrol: Secondary air pump relay
Diesel: High heat output relay
2   Petrol: Motronic current supply relay
Current supply relay for Simos control unit
Diesel: Low heat output relay
3 20A Brake vacuum pump (up to 2003)
4 20A/40A Special vehicle fuse (up to 2002)
5 - -
6 - -
7 - -
8 - -

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