IDENTIFICATION
Note. Article includes information for A6, A6 Avant Quattro, A6 Quattro, Allroad, Allroad Quattro, S6 and S6 Avant Quattro.
ENGINE CODE
Engines are identified by a 3-letter code stamped on engine. On vehicles equipped with 2.7L engine code APB, engine code is on machined surface on cylinder block, at front right cylinder bank. The engine code is also indicated on the vehicle data sticker. (Scheme 1) On vehicles equipped with 3.0L engine code AVK, engine code are stamped on rear of cylinder block, left side, and included on vehicle data plate. (Scheme 2) On vehicles equipped with 4.2L engine code AWN or BBD, letters are located on left side of cylinder block. The engine code is also included on vehicle data label. (Scheme 3)
Scheme 1
Scheme 2
Scheme 3
FUSE COLOR IDENTIFICATION
| Fuse Color | Amp Rating |
|---|
| Black | 1 |
| Blue | 15 |
| Brown | 7.5 |
| Green | 30 |
| Light Brown | 5 |
| Red | 10 |
| Transparent (White) | 25 |
| Yellow | 20 |
FUSE PANEL LOCATION
Fuse panel is located behind left side of dashboard. (Scheme 4)
Scheme 4
Scheme 4: FUSE PANEL LOCATION
FUSE PANEL IDENTIFICATION
Scheme 5
Scheme 5: FUSE PANEL IDENTIFICATION
Note. Fuses 23 through 44 may be designated in wiring diagrams with a prefix of 2. For example, fuse No. 29 may be labeled as 229. Fuse No. 43 may be labeled as 243.
| Fuse No. | Amp Rating | Circuits Protected |
|---|
| 1 | 5 | Washer Nozzle Heaters |
| 2 | 10 | Emergency Flasher Switch |
| 3 | 5 | Glove Compartment Light |
| 4 | 5 | License Plate Light |
| 5 | 10 | Heated Seat Adjusters, High Pressure Sensor, Navigation W/CD Drive Control Unit, Parking Aid Control Module, Lamp Control Module, A/C Control Head, A/C Clutch Relay, A/C Compressor Regulator Valve (1) , Air Quality Sensor, Mirror Adjustment Switch, Mirror Fold-Away Function Control Module, Rear Window Shade, Radio, Oil Level Thermal Sensor, Level Control System Control Head (2) , Level Control System Control Module (2) , Tiptronic Switch (3) |
| 6 | 5 | Central Locking Control Module |
| 7 | 10 | Brake Pedal Switch, Cruise Control/Diesel Direct Fuel Injection, Cruise Control Switch, ABS Control Module (4) , ASR/ESP Button (4) , Steering Angle Sensor (4) , Level Control System Control Head (2) , Clutch Vacuum Vent Valve Switch (5) , ECM |
| 8 | 5 | Telephone/Telematic Control Module, Operating Electronic (Telephone) Control Module |
| 9 | 10 | Heated Outside Mirrors |
| 10 | 5 | Headlight Beam Adjustment Motors, Beam Adjustment Control Module |
| 11 | 5 | Automatic Day/Night Interior Mirror, Garage Door Opener Control Module |
| 12 | 10 | DLC |
| 13 | 10 | Brake Light Switch |
| 14 | 10 | Central Locking Control Module, Door Warning Lights, Passenger Compartment Monitoring Switch, Trunk Lid Release Switch, Memory Program Switch, Memory Control Head (Passenger's Seat), Seat Memory Control Module (Driver's & Passenger's) |
| 15 | 10 | Instrument Cluster, Solar Cell Separation Relay, Mirror Memory Control Module, Navigation W/CD Drive Control Unit |
| 16 | 5 | Steering Angle Sensor |
| 17 | 10 | Level Control System Control Module, Combustion Air Blower Capacitor (2) , Tire Pressure Monitoring Control Module, Capacitor (4) , Parking Aid Control Module |
| 18 | 10 | High Beam (Right), Headlight High Beam Indicator Light, Control Module W/Display Unit In Instrument Cluster (6) |
| 19 | 10 | High Beam (Left), Fog Light Relay |
| 20 | 15 | Lamp Control Module, Low Beam Headlight (Right) |
| 21 | 15 | Lamp Control Module, Low Beam Headlight (Left) |
| 22 | 5 | Lamp Control Module, Tail Light (Right), Parking Light (Right) |
| 23 | 5 | Lamp Control Module, Tail Light (Left), Parking Light (Left) |
| 24 | 25 | Wiper/Washer Intermittent Relay |
| 25 | 30 | Fresh Air Blower, Solar Cell Separation Relay, A/C Pressured Switch, A/C Control Head, A/C Clutch Relay |
| 26 | 30 | Air Quality Sensor, A/C Control Head, Rear Window Defogger Switch |
| 27 | 15 | Rear Window Wiper Motor, Heated Steering Wheel, Steering Wheel Control Unit |
| 28 | 20 | Fuel Pump |
| 29 |
| Engine Code APB & AVK | 20 | Ignition Coils |
| Engine Code AWN & BBD | 30 | Camshaft Adjustment Valves, Ignition Coils, Motronic ECM |
| 30 | 20 | Power Sunroof Control Module |
| 31 |
| Manual Transmission | 15 | Back-Up Light Switch, Automatic Day/Night Interior Mirror, DLC |
| Automatic Transmission | 15 | DLC, Multi-Function Transmission Range Switch, Shift Lock Solenoid, Park/Neutral Position Relay (7) , Transmission Control Module (7) |
| 32 | 20 | Cruise Control Switch, Fuel Injectors |
| 33 | 15 | Cigarette Lighters |
| 34 |
| Engine Code APB | 15 | MAF Sensor, Oxygen Sensor Heaters, Camshaft Adjustment Valves, EVAP Canister Purge Valve, Secondary Air Injection Solenoid Valve, Secondary Air Injection Pump Relay, Leak Detection Pump, Exhaust Temperature Sensors, Wastegate Bypass Regulator Valve, Central Idle Air Control Cut-Off Valve |
| Engine Code AVK | 15 | MAF Sensor, Oxygen Sensor Heaters, EVAP Canister Purge Valve, Secondary Air Injection Solenoid Valve, Secondary Air Injection Pump Relay, Intake Manifold Change-Over Valve, Leak Detection Pump |
| Engine Code AWN & BBD | 15 | MAF Sensor, Oxygen Sensor Heaters, EVAP Canister Purge Valve, Secondary Air Injection Solenoid Valve, Secondary Air Injection Pump Relay, Electrohydraulic Engine Mount Solenoid Valve (Left & Right), Intake Manifold Change-Over Valve, Intake Manifold Tuning Valve No. 2 (8) , Leak Detection Pump, Intake Air Switch-Over (9) |
| 35 | 30 | Trailer Socket |
| 36 | 15 | Fog Light Switch |
| 37 | 20 | Radio, Right Rear Woofer/Amp, Power Antenna |
| 38 | 20 | Central Locking Control Module |
| 39 | 15 | Emergency Flasher Switch |
| 40 | 25 | Dual Horn Relay |
| 41 (2) | 25 | ABS Solenoid Valve |
| 42 | 25 | ABS Control Module (W/EDL), ABS Solenoid Valve |
| 43 | N/A | Not Used |
| 44 | 30 | Heated Seat Adjusters |
| (1) Applies to vehicles equipped with engine code AVK only. (2) Applies to Allroad models only. (3) Applies to vehicles equipped with automatic transmission only. (4) Applies to all models except Allroad. (5) Applies to vehicles equipped with manual transmission only. (6) Applies to vehicles equipped with high intensity gas discharge lamps only. (7) Applies to vehicles equipped with multitronic transmission only. (8) Applies to vehicles equipped with engine code AWN only. (9) Applies to vehicles equipped with engine code BBD only. |
| (1) | Applies to vehicles equipped with engine code AVK only. |
| (2) | Applies to Allroad models only. |
| (3) | Applies to vehicles equipped with automatic transmission only. |
| (4) | Applies to all models except Allroad. |
| (5) | Applies to vehicles equipped with manual transmission only. |
| (6) | Applies to vehicles equipped with high intensity gas discharge lamps only. |
| (7) | Applies to vehicles equipped with multitronic transmission only. |
| (8) | Applies to vehicles equipped with engine code AWN only. |
| (9) | Applies to vehicles equipped with engine code BBD only. |
FUSE IDENTIFICATION (FUSE PANEL)
THREE FOLD RELAY PANEL (E-BOX)
Note. Three fold relay panel is located in electronics box, plenum chamber, in the left rear corner of engine compartment.
Note. Manufacturer does not provide fuse number, amperage rating, or circuits protected for three fold relay panel fuses.
Scheme 6
Scheme 6: THREE FOLD RELAY PANEL (E-BOX)
| Position | Relay No. | Circuit Protected |
|---|
| 1A | N/A | Not Used |
| 1B (1) | J151 | Coolant Circulation Pump |
| 2 | J299 | Secondary Air Injection Pump Relay |
| 3 |
| Engine Codes AVK, AWN & BBD | J271 | Motronic ECM Power Supply |
| Multitronic Transmission | J64 | Ignition Delay |
| (1) Applies to vehicles equipped with engine code AVK only. |
| (1) | Applies to vehicles equipped with engine code AVK only. |
RELAY IDENTIFICATION (THREE FOLD RELAY PANEL, E-BOX)
| Position | Fuse No. | Amp Rating | Circuit Protected |
|---|
| 4 | N/A | N/A | Not Used |
| 5 | S282 | 15 | Engine Electronic |
| 6 | N/A | N/A | Not Used |
| 7 | S130 | 40 | Secondary Air Pump |
| 8 | N/A | N/A | Not Used |
| 9 | N/A | N/A | Not Used |
| 10 (1) | S199 | 15 | Transmission Control Module |
| (1) Applies to vehicles equipped with multitronic transmission only. |
| (1) | Applies to vehicles equipped with multitronic transmission only. |
FUSE IDENTIFICATION (THREE FOLD RELAY PANEL, E-BOX)
THREE FOLD RELAY PANEL (INSTRUMENT PANEL)
Note. Three fold relay panel is located behind instrument panel on central girder.
Scheme 7
Scheme 7: THREE FOLD RELAY PANEL (INSTRUMENT PANEL)
| Position No. | Relay No. | Circuit Protected |
|---|
| 1 | J569 | Brake Booster |
| 2 | N/A | Not Used |
| 3 | N/A | Not Used |
RELAY IDENTIFICATION (THREE FOLD RELAY PANEL, INSTRUMENT PANEL)
| Position No. | Fuse No. | Amp Rating | Circuit Protected |
|---|
| A | N/A | N/A | Not Used |
| B | N/A | N/A | Not Used |
| C (1) | S279 | 15 | Brake Booster Relay |
| D | N/A | N/A | Not Used |
| (1) Applies to vehicles equipped with engine codes APB and AVK only. |
| (1) | Applies to vehicles equipped with engine codes APB and AVK only. |
FUSE IDENTIFICATION (THREE FOLD RELAY PANEL, INSTRUMENT PANEL)
EIGHT FOLD RELAY PANEL
Note. Eight fold relay panel is located behind trim panel, under driver's side of instrument panel.
Scheme 8
Scheme 8: EIGHT FOLD RELAY PANEL
| Position No. | Relay No. | Circuit Protected |
|---|
| 1 (1) | J106 | ABS Solenoid Valve |
| 2 | J101 | Second Speed Coolant Fan Control |
| 3 | J26 | Coolant Fan Control |
| 4 | N/A | Not Used |
| 5 | N/A | Not Used |
| 6 (1) | J403 | Compressor Level Control System |
| 7 (1) | J105 | ABS Return Flow Pump |
| 8 | N/A | Not Used |
| (1) Applies to Allroad models only. |
| (1) | Applies to Allroad models only. |
RELAY IDENTIFICATION (EIGHT FOLD RELAY PANEL)
| Position No. | Fuse No. | Amp Rating | Circuit Protected |
|---|
| 9 | N/A | N/A | Not Used |
| 10 | N/A | N/A | Not Used |
| 11 | N/A | N/A | Not Used |
| 12 | N/A | N/A | Not Used |
| 13 | N/A | N/A | Not Used |
| 14 (1) | S44 | 30 | Power Seat Circuit Breaker No. 1 |
| 15 (2) | S184 | 20 | Luggage Compartment Socket |
| 16 | S37 | 30 | Power Window Circuit Breaker (Front) |
| 17 | S43 | 30 | Power Window Circuit Breaker (Rear) |
| 18 | S123 | 50 | ABS Control Module |
| 19 | N/A | N/A | Not Used |
| 20 | S42 | 60 | Coolant Fan |
| 21 | S142 | 5 | Coolant Fan Control Module |
| 22 | S44 | 30 | Power Seat Circuit Breaker No. 1 |
| 23 | S110 | 40 | Self-Leveling System |
| 24 | S80 | 30 | Power Seat Circuit Breaker No. 2 |
| (1) Applies to vehicle equipped with sport seat. (2) Applies to Avant models only. |
| (1) | Applies to vehicle equipped with sport seat. |
| (2) | Applies to Avant models only. |
FUSE IDENTIFICATION (EIGHT FOLD RELAY PANEL)
THIRTEEN FOLD RELAY PANEL
Note. Thirteen fold relay panel is located behind trim panel under driver's side of instrument panel.
Scheme 9
Scheme 9: THIRTEEN FOLD RELAY PANEL
| Position No. | Relay No. | Circuit Protected |
|---|
| 1 | J4 | Dual Horn (Relay No. 2) |
| 2 | N/A | Not Used |
| 3 | J309 | Solar Cell Separation |
| 4 |
| All Models Except Avant | J207 | Starting Interlock |
| Avant | J226 | Park/Neutral Position |
| 5 | J44 | A/C Clutch |
| 6 | J5 | Fog Light |
| 7 | J453 | Multi-Function Steering Wheel |
| 8 | J453 | Multi-Function Steering Wheel |
| 9 | J123 | Lamp Control Module |
| 10 | J123 | Lamp Control Module |
| 11 | J351 | Mirror Fold-Away Function Control Module |
| 12 | J351 | Mirror Fold-Away Function Control Module |
| 13 | J236 | Servotronic Control Module |
RELAY IDENTIFICATION (THIRTEEN FOLD RELAY PANEL)
| Position No. | Fuse No. | Amp Rating | Circuit Protected |
|---|
| 14 (1) | S279 | 30 | Hydraulic Pump Relay |
| 15 | N/A | N/A | Not Used |
| 16 | N/A | N/A | Not Used |
| 17 (2) | S28 | 12 | Fog Light Circuit Breaker |
| 18 | N/A | N/A | Not Used |
| (1) Applies to Allroad models only. (2) Applies to vehicles produced in Canada only. |
| (1) | Applies to Allroad models only. |
| (2) | Applies to vehicles produced in Canada only. |
FUSE IDENTIFICATION (THIRTEEN FOLD RELAY PANEL)
MICRO CENTRAL ELECTRIC PANEL
Note. Micro central electric panel is located in driver's side footwell, behind trim panel.
Scheme 10
Scheme 10: MICRO CENTRAL ELECTRIC PANEL
| Position No. | Relay No. | Circuit Protected |
|---|
| 1 | J4 | Dual Horn |
| 2 | J59 | Load Reduction |
| 3 (1) | J555 | Low Range Hydraulic Pump |
| 4 | J17 | Fuel Pump |
| 5 | J31 | Wiper/Washer Intermittent |
| 6 | J31 | Wiper/Washer Intermittent |
| (1) Applies to Allroad models equipped with manual transmission only. |
| (1) | Applies to Allroad models equipped with manual transmission only. |
RELAY IDENTIFICATION (MICRO CENTRAL ELECTRIC PANEL)
| Position No. | Fuse No. | Amp Rating | Circuit Protected |
|---|
| A | S275 | 20 | Steering Column Adjustment |
| B | S100 | 10 | Rear Shade |
| C (1) | S326 | 1 | Multi-Function Steering Wheel (Blue) |
| (1) Applies to vehicles from May 2002 and on. |
| (1) | Applies to vehicles from May 2002 and on. |
FUSE IDENTIFICATION (MICRO CENTRAL ELECTRIC PANEL)
