Audi A6 C5 (1997-2005) – fuse and relay box
Audi A6 C5 (1997-2005) – fuse and relay diagram
Year of production: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005.
The cigarette lighter fuse (power socket) on the Audi A6 C5 (1997-2005) is fuse 33 in the fuse box on the dashboard.
Fuse box, side control panel on the dashboard side
| Number |
Amperes [A] |
Description |
| 1 | 5 | Heating element (left washer nozzle);
Heating element (right washer nozzle). |
| 2 | 10 | Hazard warning light switch |
| 3 | 5 | Glove box lighting |
| 4 | 5 | License plate lighting |
| 5 | 10 | Oil level / oil temperature sender;
Compressor regulating valve; Air conditioning system; High pressure transmitter; Tiptronic switch; Tire pressure monitor control unit; Light bulb monitoring device; Air conditioner controller and display; Air quality sensor; Navigation system with CD; Self-leveling suspension control unit; Control unit to control the height of the suspension; Telephone / telematics control unit; Control unit for voice control; Parking aid control unit; Rear roller shutter switch. |
| 6 | 5 | Central control unit with interlock |
| 7 | 10 | ABS control unit;
Steering angle sender; TCS / ESP button; Cruise control brake pedal switch; (diesel direct injection system) Clutch pedal switch. |
| 8 | 5 | Telephone / telematics control unit;
Control unit for voice control. |
| 9 | 10 | Heated exterior mirror, driver’s side;
Heated exterior mirror, front passenger’s side. |
| 10 | 5 | Headlight range control, control unit |
| 11 | 5 | Automatic anti-dazzle interior mirror |
| 12 | 10 | Connection for diagnostics |
| 13 | 10 | Brake light switch;
Brake light bulbs. |
| 14 | 10 | Central control unit with interlock;
Control Unit Memory – Driver’s Seat Seat; Luggage compartment release switch; Interior monitor switch. |
| 15 | 10 | Control unit with display in the dashboard insert;
Solar cell isolation relay; Navigation system with CD drive control unit; Mirror memory control unit; Radio controlled auxiliary receiver. |
| 16 | 5 | Steering angle sender |
| 17 | 10 | Tire pressure monitor control unit;
Self-leveling suspension control unit; Two-way radio switch; Parking aid control unit. |
| 18 | 10 | Main bulb, right;
Road light; Warning light. |
| 19 | 10 | Main, left bulb |
| 20 | 15 | Dipped beam, right;
Right headlight range control motor. |
| 21 | 15 | Left dipped light bulb;
Headlamp range control motor, left. |
| 22 | 5 | Side light bulb, right;
Taillight bulb (red) right. |
| 23 | 5 | Side light bulb, left;
Tail light bulb (red), left. |
| 24 | 25 | Automatic sprinkler;
Wiper relay; Wiper control. |
| 25 | 30 | Air conditioner / air conditioner controller and display;
Solar cell isolation relay; Fresh air blower; Magnetic coupling relay; Auxiliary heater relay. |
| 26 | 30 | Air conditioner controller and display;
Heated rear window switch. |
| 27 | 15 | Heated steering wheel;
Rear window wiper motor. |
| 28 | 20 | Fuel pump (pre-pump);
Fuel pump control unit; Fuel pump relay. |
| 29 | 30 20 | Ignition coil with output stage(BAS engine code);
Motronic control device (BAS engine code); Output stage; Ignition coil with an output stage; Motronic control device; Camshaft adjustment valves. |
| 30 | 20 | Sliding sunroof adjustment control |
| 31 | 15 | Starting inhibitor and reverse light relay;
Hazard lights switch; Reverse lamp switch; Connection diagnosis; Multi-function switch; Ignition off delay relay; Automatic gearbox control unit. |
| 32 | 20 | Injectors;
Cruise control system switch. |
| 33 | 15 | Cigarette lighter;
Cigarette lighter, rear. |
| 34 | 15 | Secondary air pump relay;
Solenoid valves; Secondary air inlet valve; Turbocharger check air valve; Air mass meters; Heater for lambda probes; Intake manifold reversing valve. |
| 35 | 30 | Trailer socket |
| 36 | 15 | Front and rear fog light switch |
| 37 | 20 | Radio;
Amplifier with bass speaker; Antenna selection control unit; Controller for control electronics, navigation; Navigation / TV tuner; Navigation interface; Chip card reader. |
| 38 | 20 | Central control unit with interlock |
| 39 | 15 | Hazard warning light switch |
| 40 | 25 | Two-tone sonic relay |
| 41 | 25 | Relay for ABS solenoid valves(all models). |
| 42 | 25 | ABS control unit |
| 43 | 5 | Radio;
Control electronics driver, navigation. |
| 44 | 30 | Auxiliary heater relay;
Solar cell isolation relay 2; Heated driver’s seat regulator; Heated front passenger seat regulator; Heated rear left seat switch; Heated rear right switch. |
13-point relay carrier, behind the driver’s storage compartment
| Number | Description |
| 1 | Two-tone transmitter (telematics – USA) – J4 |
| 2 | Alternative plug-in relay – J442;
Alarm system control unit (taxi) – J85; Relay siren (police vehicles) – J408; Alarm system relay, light switching (special vehicles) – J549. |
| 3 | Solar cells isolation relay – J309;
Alarm system control unit (taxi) – J85; Relay siren (police vehicles) – J408; Alarm system relay 2, intermittent main beam (special vehicles) – J461. |
| 4 | Starter inhibitor relay – J207;
Starting inhibitor and reverse light relay – J226. |
| 5 | Magnetic coupling relay – J44;
Auxiliary heater relay – J8. |
| 6 | Fog light relay – J5;
Fuel pump relay (TDI engines) – J17. |
| 7 | Multifunction steering wheel control unit – J453 |
| 8 | Multifunction steering wheel control unit – J453 |
| 9 | Bulb monitoring device – J123 |
| 10 | Bulb monitoring device – J123 |
| 11 | Outside mirror – folding system control unit – J351 |
| 12 | Outside mirror – folding system control unit – J351 |
| 13 | Servotronic control unit – J236 |
| 14 | Taxometric fuse – S182;
E fuse (police vehicles) – S201; Hydraulic pump relay fuse – S279. |
| 15 | Not used |
| 16 | Alarm system fuse (taxi) – S57;
Fuse B (police vehicles) – S202. |
| 17 | Alarm system taximeter and fuse – S183;
C fuse (police vehicles) – S203; Intercom system fuse – S253; Fog fuse – S28. |
| 18 | Mounted in any free places Plug-in alternator – J442 (special vehicles);
Alarm system II control unit – J430 (taxi); Laser relay for headlight alarm system – J182; (police vehicles) Solar cell isolation relay – J309 (taxi). |
Micro-central electrical installation, behind the driver’s compartment
| Number |
Description |
| 1 | Two-tone relay – J4 |
| 2 | Contact relief relay X – J59 |
| 3 | Hydraulic relay for hydraulic pumps;low-reach gears (allroad models) – J555. |
| 4 | Fuel pump relay (gasoline engines) – J17;
Glow plug relay (diesel engines) – J52. |
| 5 | Automatic intermittent washer,relay with switch – J31 |
| 6 | Automatic intermittent washer,relay with switch – J31 |
| A | Fuse with steering column adjustment – S275 |
| B | Rear roller shutter fuse – S100 |
| C. | Alarm system 2 fuses (taxis) – S181;
C fuse (police vehicles) – S204; Fuse for emergency release of the tailgate (special vehicles) – S195; Multifunction steering wheel fuse (blue) – S326, phased in from 05.02 |
8-point relay carrier, behind the driver’s glove box, behind the micro-central electrics
| Number |
Description |
| 1 | Relay for solenoid valves -ABS with ESP – J106 |
| 2 | Heating fan speed relay – J101 |
| 3 | Heating fan relay – J26;
Coolant circulation relay – J151. |
| 4 | Radiator fan operation relay – J138 |
| 5 | Not used |
| 6 | Self-leveling suspension compressor relay(allroad models) – J403 |
| 7 | Return pump relay – ABS with ESP – J105 |
| 8 | Coolant shut-off valve relay – J541 |
| 14 | Chair thermoregulation,thermal fuse on the driver’s side
(off-road models) – S44 |
| 15 | Fuse for 12 V socket – S184 |
| 16 | Electric windshield thermal fuse – S37 |
| 17 | Electric thermal fuse on the back of the window – S43 |
| 18 | ABS control unit fuse – S123 |
| 19 | Heating fan fuse – S42 |
| 20 | Radiator fan control unit fuse – S142 |
| 21 | Seat adjustment thermal fuse, driver’s side – S44;
Radiator fan fuse (allroad models) – S42. |
| 22 | Self-leveling suspension fuse – S110 |
| 24 | Seat adjustment thermal fuse, front passenger’s side – S80 |
Relay carrier, driver’s side, behind the control panel in the center carrier
| Number |
Description |
| 1 | Low heat output relay – J359;
Brake servo relay – J569. |
| 2 | Auxiliary heater relay – J8;
Solar cell isolation relay 2 – J354. |
| 3 | High heat output relay – J360 |
| A | Not used |
| B | Not used |
| C. | Additional heater fuse 2 – S143;
Hydraulic pump relay fuse (brake servo) – S279; Fuel pump fuse – S81; (RS6 models; left-hand drive vehicles). |
| D | Additional heater fuse – S109;
Fuel pump fuse – S81; (RS6 models). |
3-point relay carrier in electronics box, plenum chamber
| Number |
Description |
| 1 | Secondary air pump relay – J299 (RS6 models) |
| 1a | Radiator fan relay (allroad models) – J26 |
| 1b | Coolant circulation relay (allroad models) – J151;
Additional cooling pump relay – J496. |
| 2 | Secondary air pump relay – J299 |
| 3 | Motronic current supply relay (gasoline engines) – J271;
Diesel direct injection system relay (diesel engines) – J322; Ignition off delay relay (automatic gearbox 01J) – J64 |
| 4 | Fuel cooling pump relay – J445;
Coolant circulation relay – J151 (RS6 models). |
| 4a | Not used |
| 5 | Engine control unit fuse – S102;
Engine electronics fuse – S282. |
| 6 | Not used
Fuse 2 for glow plugs – engine, V6 TDI, V8 TDI – S125; Glow plug fuse – engine, 4 cylinder – S39; Radiator fan fuse (allroad models) – S94. |
| 7 | Glow plug fuse – engine, V6 TDI, V8 TDI – S39;
Secondary air pump fuse (gasoline engines) – S130; Auxiliary heater fuse – S62 – up to model year 2000; Not used. |
| 8 | Auxiliary heater fuse – S62 – up to model year 2000;
Not used. |
| 9 | Fuse 2 for glow plugs – engine, V6 TDI, V8 TDI – S125;
Glow plug fuse – engine, 4 cylinder – S39; Radiator fan fuse (allroad models) – S94; Coolant pump fuse (RS6 models) – S78; Unused. |
| 10 | Fuel cooling fuse – S262;
Fuse -1- (15) (automatic gearbox 01J) – S199; Radiator fan control assembly fuse (all road models) – S142; Not used. |
Fuse in the plenum chamber
| Number |
Description |
| 1 | Fuse -1- (30) (only for V8) – S204 |
| 2 | Fuse -2- (30) – S205 |
| 3 | Auxiliary heater fuse – S62 |
Fuse in the plenum chamber (RS6 models)
| Number |
Description |
| 1 | Fuse -2- (30) – S205 |
| 2 | Fuse -1- (30) – S204 |
| 3 | Battery screw connection |