Audi A3 & S3 (8L; 1996-2003) Fuse Diagram

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Fuse box diagrams (layout, location, function, assignment) in the cabin and engine compartment of Audi A3 & S3 (8L; 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003).

Audi A3 & S3 (1996-2003)

Checking and Replacing Fuses

The wiring circuits in the vehicle are protected from short circuits by fuses. This greatly reduces the chance of damage caused by electrical problems.

To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating.

Fuses of the same amperage can be temporarily borrowed from another fuse location if a fuse goes out. Replace the fuse as soon as possible.

Note

  • Before replacing a fuse check that the key has been removed from the ignition and that all the services are switched off and/or disengaged.
  • When replacing a blown fuse, it is important to use only a fuse having the correct amperage rating. The use of a fuse with a rating other than indicated may result in a dangerous electrical system overload.
  • If a properly rated fuse continues to blow, it indicates a problem in the circuit that must be corrected.

Location

Location of the fuses

  1. Relay carrier (3-pin) / fuse carrier;
  2. Micro-central electrics, Relay carrier (13-pin);
  3. Instrument panel fuse holder;
  4. Main fuse box/battery.

Instrument Panel Fuse Box Diagram

The fuse panel is located behind the cover on the driver’s side of the dash panel.

Instrument Panel Fuse Box Diagram

AFunction/component
110S1 - Fuse in relay plate fuse holder
Z20 - Left washer jet heater element 75x
Z21 - Right washer jet heater element
Z4 - Driver side heated exterior mirror
Z5 - Front passenger side heated exterior mirror
210M5 - Front left turn signal bulb
M7 - Front right turn signal bulb
M18 - Left side mounted turn signal bulb
M19 - Right side repeater turn signal bulb
35Illuminations:
W6 - Glove compartment light
E87 - Operating and display unit for Climatronic air conditioning system
45X-number plate light
57.5E87 - Operating and display unit for Climatronic air conditioning system
E45 - Cruise control system switch
E94 - Heated driver seat regulator
E95 - Heated front passenger seat regulator
E159 - Fresh air and air recirculation flap switch
E221 - Operating unit in the steering wheel (*1)
F269 - Temperature flap position switch
G65 - High pressure sender
J293 - Radiator fan control unit
J401 - Navigation system with CD drive control unit
J402 - Navigation operating electronics control unit
J446 - Parking aid control unit
J453 - Multifunction steering wheel control unit
R - Radio
Y7 - Automatic anti-dazzle interior mirror
65E150 - Driver side interior locking switch
V94 - Central locking motor with control unit for interior lights switch-off delay and anti-theft alarm system
710F189 - Tiptronic switch
G22 - Speedometer sender
G266 - Oil level and oil temperature sender
J226 - Starter inhibitor and reversing light relay
M16 - Left reversing light bulb
M17 - Right reversing light bulb
85J526 - Telephone and telematics control unit
J412 - Mobile telephone operating electronics control unit
R36 - Telephone transmitter and receiver unit
95E132 - Traction control system switch
G85 - Steering angle sender
J104 - ABS control unit
1015Engine management petrol engine:
J220 - Motronic control unit (*2)
J271 - Motronic current supply relay (*2)
J363 - Current supply relay for Simos control unit (*2)
105Engine management diesel engine:
J248 - Diesel direct injection system control unit (*2)
1010J285 - Control unit in dash panel insert (*3)
J402 - Navigation operating electronics control unit (*3)
R - Radio (*3)
V94 - Central locking motor with control unit for interior lights switch-off delay and anti-theft alarm system (*3)
115G266 - Oil level and oil temperature sender
J17 - Fuel pump relay
J285 - Control unit in dash panel insert
K2 - Alternator warning lamp
K14 - Handbrake warning lamp
K29 - Glow period warning lamp
K132 - Electronic power control fault lamp
K149 - Engine electronics warning lamp
N110 - Selector lever lock solenoid
V48 - Left headlight range control motor
V49 - Right headlight range control motor
127.5J401 - Navigation system with CD drive control unit
J412 - Mobile telephone operating electronics control unit
J526 - Telephone and telematics control unit
R36 - Telephone transmitter and receiver unit
R86 - Aerial amplifier for mobile telephone
T16 - 16-pin connector, black, shelf centre console (diagnostic connector)
1310M9 - Left brake light bulb
M10 - Right brake light bulb
M25 - High-level brake light bulb
1410J452 - Door warning lamps control unit
V94 - Central locking motor with control unit for interior lights switch-off delay and anti-theft alarm system
W - Front interior light
W14 - Front passenger side illuminated vanity mirror
W20 - Driver side illuminated vanity mirror
155E87 - Operating and display unit for Climatronic air conditioning system
G85 - Steering angle sender
J217 - Automatic gearbox control unit
J285 - Control unit in dash panel insert
1610J293-Radiator fan control unit
177.5Z22 - Left lock cylinder heater element
Z23 - Right lock cylinder heater element
1810L2 - Right headlight twin filament bulb (main beam)
K1 - Main beam warning lamp
1910L1 - Left headlight twin filament bulb (main beam)
2015E102 - Headlight range control regulator
J124 - Rear bulb monitoring device
J344 - Right gas discharge light control unit
L2 - Right headlight twin filament bulb (dipped beam)
V48 - Left headlight range control motor
V49 - Right headlight range control motor
2115J124 - Rear bulb monitoring device
J343 - Left gas discharge light control unit
L1 - Left headlight twin filament bulb (dipped beam)
225J285 - Control unit in dash panel insert
M2 - Right tail light bulb
M3 - Right side light bulb
235J285 - Control unit in dash panel insert
M1 - Left side light bulb
M4 - Left tail light bulb
2420J31 - Automatic intermittent wash and wipe relay
2525E87 - Operating and display unit for air conditioning system/Climatronic
V2 - Fresh air blower
2625Z1 -Heated rear window
2715J30-Rear window wiper and washer relay
V12 -Rear window wiper motor
2815
20 (*4)
J17-Fuel pump relay
2915Engine management petrol engine
J220 - Motronic control unit
J271 - Motronic current supply relay
J361 - Simos control unit
J363 - Current supply relay for Simos control unit
N122 - Output stage
295Engine management diesel engine:
J248 - Diesel direct injection system control unit (*5)
2910Engine management diesel engine:
J248 - Diesel direct injection system control unit (*6)
3020J245-Sliding sunroof adjustment control unit
3120J217 - Automatic gearbox control unit
J539 - Brake servo control unit
315J492-Four-wheel drive control unit
2710Engine management petrol engine:
N30-Injector, cylinder 1
N31-Injector, cylinder 2
N32-Injector, cylinder 3
N33-Injector, cylinder 4
3230Engine management diesel engine:
J248-Diesel direct injection system control unit
3320J31 - Automatic intermittent wash and wipe relay
3410Engine management petrol engine:
N75 - Charge pressure control solenoid valve
N79 - Heater element for crankcase breather
N112 - Secondary air inlet valve
N156 - Variable intake manifold change-over valve
N249 - Turbocharger air recirculation valve
N205 - Inlet camshaft control valve 1
3410Engine management diesel engine:
G70 - Air mass meter
G80 - Needle lift sender
N18 - Exhaust gas recirculation valve
N75 - Charge pressure control solenoid valve
N239 - Variable intake manifold flap change-over valve
3530U10 -Trailer socket
3615L46 - Rear left fog light bulb
L22 - Left fog light bulb
L23 - Right fog light bulb
3710J285 - Control unit in dash panel insert (*2)
J402 - Navigation operating electronics control unit (*2)
R - Radio (*2)
V94 - Central locking motor with control unit for interior lights switch-off delay and anti-theft alarm system (*2)
3720Engine management petrol engine:
J220 - Motronic control unit (*3)
J271 - Motronic current supply relay (*3)
J363 - Current supply relay for Simos control unit (*3)
375Engine management diesel engine:
J248 - Diesel direct injection system control unit (*3)
3810E150 - Driver side interior locking switch
F248 - Release button for rear lid lock cylinder
J347 - Ultrasonic sensor control unit
V94 - Central locking motor with control unit for interior lights switch-off delay and anti-theft alarm system
3915Hazard warning lights system
M5 - Front left turn signal bulb
M7 - Front right turn signal bulb
M6 - Rear left turn signal bulb
M8 - Rear right turn signal bulb
M18 - Left side mounted turn signal bulb
M19 - Right side mounted turn signal bulb
K65 - Left turn signal warning lamp
K94 - Right turn signal warning lamp
4020H2 -Treble tone horn
H7 -Bass tone horn
4115U1-Cigarette lighter
4215J415 - Navigation system tuner for TV
J515 - Aerial selection control unit
R - Radio
R12 - Amplifier
R44 - Amplifier with bass loudspeaker, on left in luggage compartment
R94 - Navigation system interface
4310Engine management petrol engine:
G70 - Air mass meter
N80 - Active charcoal filter system solenoid valve 1
Z19 - Lambda probe heater
Z29 - Lambda probe 1 heater after catalytic converter
4310Engine management diesel engine:
F36 - Clutch pedal switch
F47 - Brake pedal switch
N79 - Heater element for crankcase breather
J359 - Low heat output relay
J360 - High heat output relay
4415Z6 - Heated cushion for driver seat
Z7 - Heated backrest for driver seat
1) is dropped from July 2002
2) is dropped from November 2001
3) applicable from November 2001
4) for models with S3 equipment only
5) is dropped from model year 2002
6) applicable from model year 2002

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Relay carrier (3-pin) / fuse carrier

Relay carrier (3-pin)

Relays
1Secondary air pump relay (J299) (petrol engine)
High heat output relay (J360) (diesel engine)
2Motronic current supply relay (J271) (petrol engine)
Current supply relay for Simos control unit (J363) (petrol engine)
Low heat output relay (J359) (diesel engine)
A
Function/component
3 (*1)20Brake vacuum pump fuse S283 (petrol engine)
4 (*2)40Special vehicle fuse 20 S310 (petrol engine)
1) is dropped from model year 2003
2) is dropped from model year 2002

Micro-central electrics

Micro-central electrics

Relays
1J4 - Dual tone horn relay
2J59 - X-contact relief relay
3Vacant
4J17 - Fuel pump relay (*1)
J52 - Glow plug relay (*2)
5J31 - Automatic intermittent wash and wipe relay
6J31 - Automatic intermittent wash and wipe relay
Fuses
AS44 - Driver seat adjustment thermal fuse 1
S45 - Driver seat adjustment thermal fuse 2
BS283 - Brake vacuum pump fuse (*3)
CS37 - Window regulator single fuse
1) for models with petrol engines only
2) for models with diesel engines only
3) applicable from model year 2003

Relay carrier (13-pin)

Relay carrier (13-pin)

Relays
1Vacant
2J124 - Rear bulb monitoring device
3J124 - Rear bulb monitoring device
4J552 - Open window regulator relay, front passenger side
5J351 - Folding exterior mirror control unit
6J351 - Folding exterior mirror control unit
7J508 - Brake light suppression relay
8J9 - Heated rear window relay
9J17 - Fuel pump relay (*1)
10J17 - Fuel pump relay (*2)
11J226 - Starter inhibitor and reversing light relay
12J322 - Diesel direct injection system relay
13J397 - Radiator fan run-on relay
J155 - Coolant pump control unit
Fuses
14Vacant
15Vacant
16Vacant
17S43 - Window regulator thermal fuse
18S326 - Multifunction steering wheel fuse (*3)
1) for models with four-wheel only
2) for models with front-wheel drive only
3) applicable from July 2002

Main fuse box

Located on the battery “+” terminal.

Main fuse box

AFunction/component
S13150Heater glow plugs (diesel engine)
S13250Engine management
S13330Radiator fan
S134110Interior
S138150Alternator
S16230Fuse 1 (30) in fuse holder on battery

 

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