The Audi Allroad C5 is a four-wheel drive all-terrain vehicle based on the Audi A6 platform. It was produced in 1999, 2000, 2001, 2002, 2003, 2004, 2005 and 2006. After that, the model underwent a generation update. Our material is presented by Audi Allroad fuse and relay boxes with diagrams and decoding of their elements.

Arrangement

  1. 3-slot mounting box
  2. 8-slot mounting box
  3. Central switchgear with relay box
  4. Main fuse block
  5. 13-slot mounting box
  6. Mounting box in pressure box

3-slot mounting box

Scheme

Marking

1Low thermal power relay
– J359 Brake servo relay – J569
2Auxiliary heater relay – J8Solar isolation relay – J354
3High power relay -J360
ANot used
BNot used
CAuxiliary heater fuse 2
– S143 Hydraulic pump fuse (brake booster) – S279
Fuel pump fuse – S81 (RS6 LHD)
DAuxiliary heater fuse
– S109 Fuel pump fuse – S81 (RS6 RHD)

8-slot mounting box

This relay box is located behind the central distribution device. Here is its diagram.

Appointment

1Solenoid valve relay – ABS with ESP – J106
2Radiator fan relay (2 speed) – J101
3Radiator fan relay – J26
Coolant pump relay after engine stop -J151
4Radiator fan switch relay – J138
5Not used
6Air suspension compressor relay – J403 (Allroad)
7Hydraulic pump relay – ABS with ESP – J105
8Coolant shut-off valve relay – J541
14Driver’s seat adjustment thermal fuse – S44 (Allroad)
15Fuse for 12V connector – S184
16Front window thermal fuse – S37
17Rear window thermal fuse – S43
18ABS fuse block – S123
19Radiator fan fuse – S42
20Radiator fan control unit fuse – S142
21Driver’s seat adjustment thermal fuse
– S44 Radiator fan fuse – S42 (Allroad)
22Air suspension fuse – S110 (Allroad)
24Passenger seat adjustment thermal fuse – S80

The air suspension compressor relay has burned out, a possible cause of its incorrect operation.

Central switchgear

Scheme

Protected components

1Horn Relay – J4
2Relay contact discharge X – J59
3Range reduction hydraulic pump relay – J555 (Allroad)
4Fuel Pump Relay – J17 (Gasoline Engines)
Glow Plug Relay – J52 (Diesel Engines)
5Wiper and Washer Relay – J31
6Wiper and Washer Relay – J31
ASteering column adjustment fuse – S275
BRear curtain fuse – S100
CAlarm unit fuse II – S181 (taxis)
Fuse C – S204 (police cars)
Rear emergency exit cover fuse – S195 (special vehicles)
Multifunction control unit fuse – S326

Main fuse block

Located on the left side of the dashboard under a protective cover.

Check the circuit description with the table on the back cover.

Protected schemes

Purpose of fuses
None.AConsumer
15Heating of jets, mirrors
210Turn signals
35Lighting.Headlight cleaner relay
45License plate lighting
510Instrument cluster, heated seats, diagnostic connector for cruise control, bulb status control unit, catalytic converter, switch illumination, gearshift indicator, airbag indicator lamp, air conditioning, parking heater, rear window blind, sunroof, parking assist sensors
65central lock
710ABS, brake light switch. Clutch pedal switch
85Telephone
910Heated mirrors
105Automatic headlight adjustment
1110Cruise control (vehicles with automatic transmission), Multitronic gearbox control unit
1210Self-diagnostic system
1310Stop signs
1410Interior lighting, reading lights, burglar alarm, vanity mirror lighting, seat memory
1510Instrument panel, air conditioning, seat and mirror memory, parking heater timer, navigation system
165Vehicle stability stabilization system
1710Ground clearance regulator (air suspension)
1810Headlight, high beam, right
1910Left high beam headlight
2015Right dipped beam headlight, headlight range adjustment
2115Left dipped beam headlight, headlight range adjustment
225Right side marker / side marker light
235Left side marker / side marker light
2425Wiper, washer pump, intermittent relay
2530Heater A C fan, parking heater
2630Heated rear window, air recirculation in the cabin
2715Heated steering wheel, rear window wiper
2820Fuel pump, auxiliary pump for diesel vehicles
2930Engine control unit.
3020Luke
3115Reversing lights, cruise control, automatic transmission, diagnostic socket
3220Engine control unit
3315Cigarette lighter fuse
3415Engine control unit
3530Hitch socket
3615Fog lights, rear fog light
3720Telephone, radio
3820Trunk lamp, central locking
3915Light alarm
4025Sound signal
4125ABS, stability control system
4225Vehicle stability stabilization system
435Radio terminal C
4430Heated seats, parking heater

Fuse No. 33 at 15A is responsible for the cigarette lighter.

13-slot mounting box

Scheme

Marking

1Horn Relay – J4
2Alternator connection relay – J442
Anti-theft alarm control unit – J85 (taxis)
Horn relay – J408 (police vehicles)
Anti-theft alarm relay, light switching – J549 (special vehicles)
3Solar battery isolation relay -J309 Anti-
theft alarm control unit – J85 (taxis)
Horn relay – J408 (police vehicles)
Security alarm relay, high beam warning – J461 (special vehicles)
4Starter lockout relay
Relay -J207 Starter lockout relay and reversing light – J226
5Magnetic clutch relay – J44 Auxiliary heater relay
– J8
6Fog light relay – J5
Fuel pump relay – J17 (TDI engines)
7Multifunction steering wheel control unit – J453
8Multifunction steering wheel control unit – J453
9Lamp control unit – J123
10Lamp control unit – J123
11Mirror folding control unit – J351
12Mirror folding control unit – J351
13Servotronic control unit – J236
14Taximeter fuse – S182
Fuse E – S201 (police cars)
Hydraulic pump relay fuse – S279 (Allroad)
15Not used
16Security alarm fuse – S57 (taxis)
Fuse B – S202 (police cars)
17Taximeter and alarm fuse – S183 (taxis)
Fuse C – S203 (police cars)
Radio fuse – S253 (special vehicles)
Fog light fuse – S28 (daytime running lights – Canada)
18Installable anywhere
Generator connection relay – J442 (special vehicles)
Anti-theft alarm control unit II – J430 (taxi)
Light alarm relay – J182 (police vehicles)
Solar battery isolation relay – J309 (taxi)

Mounting box in pressure box

Appointment

1Secondary air pump relay – J299 (RS6)
1aRadiator fan relay (Allroad) – J26
1bCoolant circulation relay after engine shutdown (Allroad) – J151
Auxiliary coolant pump relay – J496
2Secondary air pump relay – J299
3Motronic power relay – J271 (petrol engines)
Diesel direct injection relay – J322 (diesel engines)
Relay, anti-lock braking system – J64 (automatic transmission – 01J)
4Fuel cooling pump relay – J445
Engine shutdown cooling pump relay – J151 (RS6)
4aNot used
5Engine control unit fuse – S102
Engine electronics fuse (Allroad) – S282
6Not used (LHD)
Glow plug fuse – S125 (V6 TDI, V8 TDI engines
)
Glow plug fuse – S39 (4-cylinder engines) Radiator fan fuse – S94 (Allroad)
7Glow plug fuse – S39 (engines: V6 TDI, V8 TDI)
Secondary air pump fuse – S130 (petrol engines)
Auxiliary heater fuse – S62 (right-hand drive vehicles)
Not used (right-hand drive vehicles)
8Auxiliary heater fuse – S62 (left-hand drive vehicles)
Not used (left-hand drive vehicles)
9Glow plug fuse – S125 (engines: V6 TDI, V8 TDI)
Glow plug fuse – S39 (4-cylinder engines)
Radiator fan fuse – S94 (Allroad)
Coolant pump fuse – S78 (RS6)
Not used (right-hand drive vehicles)
10Fuel cooling pump fuse – S262
Fuse -1- (15) – S199 (automatic transmission 01J)
Radiator fan control unit fuse – S142 (Allroad)

Individual fuses: Left-hand drive vehicles: – Auxiliary heater – S62 (from 2001) Right-hand drive vehicles: – Auxiliary heater – S62 (from 2001) – Fuel cooling pump fuse – S262 – Fuse -1- (15) – S199 (automatic transmission 01J) – Radiator fan control unit fuse – S142 (allroad)

Audi Allroad С5 (1999-2006) fuses and relays. Audi Allroad С5 (1999-2006) fuse diagram.