Location
- Engine compartment fuse box
- Relay carrier on onboard supply control unit (left under dash panel)
- The instrument panel fuse panel
- Additional relay carrier, under box in engine compartment
The instrument panel fuse panel
| No. |
A |
Function/component |
| 1 | 10 | T16 β Diagnostic connection (T16/1) J623 β Engine control unit J757 β Engine component current supply relay (167) (from May 2005) J538 β Fuel pump control unit (from May 2005) J485 β Relay for auxiliary heater operation (from 2006) N79 β Heater element for crankcase breather (from 2006) G70 β Air mass meter (from 2006) J431 β Control unit for headlight range control (from 2006) |
| 2 | 5 | J104 β ABS control unit E132 β Traction control system switch E256 β TCS and ESP button E492 β Tyre pressure monitor display button F β Brake light switch (low; from November 2005) |
| 10 | J623 β Engine control unit (from 2006) V49 β Right headlight range control motor (from 006) V48 β Left headlight range control motor (from 2006) E102 β Headlight range control regulator (from 2006) J538 β Fuel pump control unit (from 2006) J345 β Trailer detector control unit (from 2006) J587 β Selector lever sensors control unit (from 2006) J533 β Data bus diagnostic interface (from 2006) J285 β Control unit in dash panel insert (from 2006) J500 β Power steering control unit (from 2006) J104 β ABS with EDL control unit (from 2006) E132 β Traction control system switch (from 2006) E256 β TCS and ESP button (from 2006) G476 β Brake pedal position sender (from 2006) E1 β Light switch (from 2006) F47 β Brake pedal switch, (from November 2005) |
|
| 3 | 10 | J500 β Power steering control unit (up to May 2005) |
| 5 | J234 β Airbag control unit (from May 2005) | |
| 4 | 5 | E16 β Heater/heat output switch G65 β High-pressure sender J131 β Heated driver seat control unit J132 β Heated front passenger seat control unit J255 β Climatronic control unit K216 β Stabilisation program warning lamp 2 (from May 2005) M17 β Reversing light bulb (from May 2005) E422 β Tyre pressure monitor display button (from May 2005) G266 β Oil level and oil temperature sender (high; from May 2005) J530 β Garage door operation control unit (from May 2006) G128 β Seat occupied sensor, front passenger side (from May 2006) Y7 β Automatic anti-dazzle interior mirror (from May 2006) Z20 β Left washer jet heater element (from May 2006) Z21 β Right washer jet heater element (from May 2006) |
| 10 | G266 β Oil level and oil temperature sender (high; from November 2005) M17 β Reversing light (high; from November 2005) J255 β Climatronic control unit (high; from November 2005) G65 β High-pressure sender (high; from November 2005) E16 β Switch for heater and heater output (high; from November 2005) J530 β Garage door operation control unit (high; from November 2005) N253 β Battery isolation igniter (high; from November 2005) Y7 β Automatic anti-dazzle interior mirror (high; from November 2005) E422 β Tyre pressure monitor display button (high; from November 2005) K216 β Stabilisation programme warning lamp 2 (high; from November 2005) Z20 β Left washer jet heater element (high; from November 2005) Z21 β Right washer jet heater element (high; from November 2005) L71 β Illumination for traction control system switch (high; from November 2005) J301 β Air conditioning system control unit (high; from May 2007) |
|
| 5 | 5 | F47 β Cruise control system brake pedal switch (to May 2005) G476 β Clutch position sender J431 β Control unit for headlight range control (from May 2005) J500 β Power steering control unit (from May 2005) J745 β Cornering light and headlight range control unit, on right headlight, (high; December 2006) |
| 10 | J745 β Cornering light and headlight range control unit, on right headlight (low; from May 2006), (high; from May 2007) | |
| 6 | 5 | J285 β Control unit in dash panel insert (up to May 2006) J538 β Fuel pump control unit (up to May 2006) J533 β Data bus diagnostic interface (up to May 2006) F125 β Multifunction switch (up to May 2006) J587 β Selector lever sensors control unit (up to May 2006) F189 β Tiptronic switch (up to May 2006) J745 β Cornering light and headlight range control unit, on left of headlight (high; December 2006) |
| 10 | J745 β Cornering light and headlight range control unit, on left headlight (low; from May 2006), (high; from May 2007) | |
| 7 | 5 | J431 β Control unit for headlight range control (to May 2005) Y7 β Automatic anti-dazzle interior mirror (from May 2005) Not assigned (from May 2006) |
| 8 | 5 | Y7 β Automatic anti-dazzle interior mirror (to May 2005) |
| 10 | J345 β Trailer detector control unit (from May 2005) Not assigned (from May 2006) |
|
| 9 | 5 | Not assigned (to May 2005) J503 β Control unit with display for radio and navigation system (only commercial navigation system unit) (from May 2005) Not assigned (from May 2006) |
| 10 | 5 | J412 β Mobile telephone operating electronics control unit (to May 2005) J530 β Garage door operation control unit (from May 2005) J706 β Seat occupied recognition control unit (from May 2005) Not assigned (from May 2006) |
| 11 | 5 | J345 β Trailer detector control unit (to May 2005) Not assigned (from May 2005) |
| 10 | J745 β Cornering light and headlight range control unit, on right headlight, (from May 2007) | |
| 12 | 10 | J386 β Driver door control unit J387 β Front passenger door control unit |
| 13 | 10 | E1 β Light switch T16 β Diagnostic connection (T16/16) F47 β Brake pedal switch (from May 2005) G397 β Sensor for rain and light detection (from 2006) G197 β Magnetic field sender for compass (from 2006) |
| 14 | 5 | F β Brake light switch (low; from May 2005) J217 β Automatic gearbox control unit |
| 10 | J587 β Selector lever sensors control unit (from 2006) R149 β Remote control receiver for auxiliary coolant heater (from 2006) J301 β Air conditioning system control unit (from 2006) J255 β Climatronic control unit (from 2006) E16 β Heater/heat output switch (from 2006) J446 β Parking aid control unit (from 2006) J104 β ABS with EDL control unit (from 2006) E94 β Heated driver seat regulator (from 2006) E95 β Heated front passenger seat regulator (from May 2006) J217 β Automatic gearbox control unit (from November 2005) |
|
| 15 | 7.5 | J519 β Onboard supply control unit (interior illumination) |
| 16 | 10 | E16 β Heater/heat output switch J301 β Air conditioning system control unit J255 β Climatronic control unit R149 β Remote control receiver for auxiliary coolant heater Not assigned (from May 2006) |
| 5 | J515 β Aerial selection control unit (high; from November 2005) | |
| 17 | 5 | G397 β Rain and light detector sensor (up to May 2006) J515 β Aerial selection control unit (up to May 2006) G273 β Interior monitoring sensor (from 2006) G384 β Vehicle inclination sender (from 2006) H12 β Alarm horn (from 2006) |
| 18 | 5 | J446 β Parking aid control unit J587 β Selector lever sensors control unit Not assigned (from 2006) |
| 19 | 5 | J754 β Accident data memory |
| 20 | 5 | J104 β ABS with EDL control unit Not assigned (from 2006) |
| 21 | 5 | J503 β Control unit with display for radio and navigation system (only commercial navigation system unit) (up to May 2005) Not assigned (from May 2005) J542 β Control unit for engine speed governor, in front left footwell (special vehicles) (high; from May 2007) J378 β PDA control unit (special vehicles) (from May 2007) |
| 22 | 40 | V2 β Fresh air blower (Climatronic) N253 β Battery isolation igniter (rear battery) (high; from May 2005) |
| 23 | 30 | J386 β Driver door control unit (window regulator) J387 β Front passenger door control unit (window regulator) |
| 24 | 25 | U1 βΒ Cigarette lighterΒ (up to May 2006) U9 βΒ Rear cigarette lighterΒ (up to May 2006) U5 β 12 V socket (criminal investigation department) |
| 20 | J388 β Rear left door control unit (central locking) (from 2006) J389 β Rear right door control unit (central locking) (from 2006) J393 β Convenience system central control unit (from 2006) |
|
| 25 | J388 β Rear left door control unit (central locking) (high; from May 2007) J389 β Rear right door control unit (central locking) (high; from May 2007) J393 β Convenience system central control unit (high; from May 2007) |
|
| 25 | 25 | Z1 β Heated rear window J301 β Air conditioning system control unit (only with auxiliary coolant heater) E16 β Heater/heat output switch (only with auxiliary coolant heater) N24 β Fresh air blower series resistor (only with auxiliary coolant heater) |
| 26 | 20 | U5 β 12 V socket (luggage compartment) (up to May 2006) |
| 30 | J388 β Rear left door control unit (window regulator) (from May 2006) J389 β Rear right door control unit (window regulator) (from May 2006) |
|
| 27 | 15 | J538 β Fuel pump control unit G6 β Fuel system pressurisation pump J17 β Fuel pump control unit J643 β Fuel supply relay (from May 2006) |
| 28 | 10 | Charging point for Mag- Lite electric torch (special vehicle interface) (up to May 2005) |
| 30 | U13 β Transformer with socket, 12V-230V (from May 2005) Not assigned (from May 2006) |
|
| 25 | Special vehicles socket (not for USA/Canada ) (high; from November 2005) | |
| 29 | 10 | J220/J623 β Motronic control unit J248/J623 β Diesel direct injection system control unit G70 β Air mass meter (AXX) N79 β Heater element for crankcase breather (BUB, BMJ) Not assigned (from 2006) |
| 30 | 5 | J234 β Airbag control unit (to May 2005) K145 β Front passenger side airbag deactivated warning lamp (to May 2005) |
| 10 | N30 β Injector, cylinder 1 (from May 2005) N31 β Injector, cylinder 2 (from May 2005) N32 β Injector, cylinder 3 (from May 2005) N33 β Injector, cylinder 4 (from May 2005) |
|
| 20 | N30 β Injector, cylinder 1 N31 β Injector, cylinder 2 N32 β Injector, cylinder 3 N33 β Injector, cylinder 4 N83 β Injector, cylinder 5 N84 β Injector, cylinder 6 J217 β Automatic gearbox control unit (from 2006) J743 β Mechatronics for direct shift gearbox (from 2006) |
|
| 31 | 5 | F4 β Reversing light switch (up to May 2005) J743 β Mechatronics for direct shift gearbox (up to May 2005) |
| 20 | V192 β Vacuum pump for brakes (from May 2005) | |
| 32 | 30 | J388 β Rear left door control unit (window regulator) (up to May 2006) J389 β Rear right door control unit (window regulator) (up to May 2006) U13 β Transformer with socket, 12V-230 V (from May 2006) U27 β Transformer with socket, 12V- 15 V, (USA/Canada) (from May 2006) |
| 33 | 25 | J245 β Sliding sunroof adjustment control unit |
| 34 | 15 | V125 β Driver seat lumbar support longitudinal adjustment motor V126 β Front passenger seat lumbar support longitudinal adjustment motor V129 β Driver seat lumbar support height adjustment motor V130 β Front passenger seat lumbar support height adjustment motor |
| 35 | 5 | G273 β Interior monitoring sensor G384 β Vehicle inclination sender H12 β Alarm horn Not assigned (from 2006) |
| 36 | 20 | V11 β Headlight washer system pump J39 β Headlight washer system relay |
| 37 | 30 | J131 β Heated driver seat control unit J132 β Heated front passenger seat control unit |
| 38 | 10 | J23 β Rotating light and siren system control unit (up to May 2005) Not assigned (from May 2005) J745 β Cornering light and headlight range control unit, on left headlight, (from May 2007) |
| 20 | J388 β Rear left door control unit (central locking), NAR, with alarm horn relay J641) (from May 2006) J389 β Rear right door control unit (central locking), NAR, with alarm horn relay J641) (from May 2006) J393 β Convenience system central control unit (only VR6) (from May 2006) |
|
| 39 | 20 | Not assigned (up to May 2005) J217 β Automatic gearbox control unit (from May 2005) Not assigned (from May 2006) |
| 40 | 40 | E16 β Heater/heat output switch (fresh air blower) J301 β Air conditioning system control unit (fresh air blower) |
| 5 | E16 β Heater/heat output switch (fresh air blower) (high; from November 2005) J301 β Air conditioning system control unit (fresh air blower) (high; from November 2005) |
|
| 41 | 15 | V12 β Rear window wiper motor (up to May 2006) |
| 20 | V12 β Rear window wiper motor (from May 2006) J519 β Onboard supply control unit (double washer pump) (BSG J1) (from May 2006) |
|
| 42 | 15 | J729 β Double washer pump relay 1 (to May 2005) J730 β Double washer pump relay 2 (to May 2005) J519 β Onboard supply control unit (double washer pump) (BSG J1) (from May 2005) |
| 20 | U1 βΒ Cigarette lighterΒ (from May 2006) U9 βΒ Rear cigarette lighterΒ (from May 2006) U5 β 12 V socket (criminal investigation department) (from May 2006) |
|
| 43 | 15 | J345 β Trailer detector control unit |
| 44 | 20 | J345 β Trailer detector control unit |
| 45 | 15 | J345 β Trailer detector control unit |
| 46 | 5 | Z20 β Left washer jet heater element Z21 β Right washer jet heater element E94 β Heated driver seat regulator E95 β Heated front passenger seat regulator Not assigned (from May 2006) |
| 47 | 5 | J485 β Auxiliary heater operation relay Not assigned (from May 2006) |
| 48 | 10 | Not assigned (to May 2005) Charger for Mag-Lite and hand-held two-way radio (from May 2005) |
| 49 | 5 | E1 β Lighting switch Not assigned (from May 2006) |
Engine compartment fuse box (low)
| No. |
A |
Function/component |
| F1 | 20 | J393 β Convenience system central control unit Not assigned (from May 2006) |
| F2 | 5 | J527 β Steering column electronics control unit |
| F3 | 5 | J519 β Onboard supply control unit |
| F4 | 30 | J104 β ABS control unit |
| F5 | 15 | J743 β Mechatronic control unit (up to May 2006), (from May 2007) |
| 30 | J743 β Mechatronic control unit (from May 2006) J285 β Control unit in dash panel insert (from May 2006) |
|
| F6 | 5 | J285 β Control unit in dash panel insert |
| F7 | 15 | J608 β Special vehicle control unit |
| 25 | J608 β Special vehicle control unit (from May 2006) | |
| 30 | J743 β Mechatronics control unit (0AM) (from May 2007) | |
| F8 | 15 25 |
J503 β Control unit with display for radio and navigation R β Radio R β Preparation for radio and navigation system with TV (models for Japan) |
| F9 | 5 | J412 β Mobile telephone operating electronics control unit |
| F10 | 5 | J317 β Terminal 30 voltage supply relay |
| 10 | J623 β Engine control unit | |
| 5 | J359 β Low heat output relay | |
| F11 | 20 | J364 β Auxiliary heater control unit |
| F12 | 5 | J533 β Data bus diagnostic interface |
| F13 | 30 | J623 β Engine control unit (only models with diesel engine) J623 β Engine control unit (petrol) (from May 2007) |
| 25 | J623 β Petrol engine control unit (only models with petrol engine) (up to May 2007) | |
| F14 | 20 | N152 β Ignition transformer N70-N323 β Ignition coils with output stage |
| F15 | 10 | Z62 β Lambda probe heater 3 Z19 β Lambda probe heater G39 β Lambda probe G108 β Lambda probe 2 before catalytic converter G130 β Lambda probe after catalytic converter |
| 5 | G131 β Lambda probe 2 after catalytic converter G287 β Lambda probe 3 after catalytic converter J17 β Fuel pump relay J179 β Automatic glow period control unit J360 β High heat output relay (370) |
|
| F16 | 30 | J104 β ABS control unit |
| F17 | 15 | H2 β Treble tone horn H7 β Bass tone horn J519 β Onboard supply control unit (from May 2006) |
| F18 | 30 | J608 β Special vehicle control unit (up to May 2006) R12 β Amplifier |
| F19 | 30 | J400 β Wiper motor control unit V216 β Driver side windscreen wiper motor |
| F20 | 40 | Not assigned (up to May 2006) J179 β Automatic glow period control unit (SDI) (from May 2006) |
| 10 | V50 β Continued coolant circulation pump (from May 2007) | |
| F21 | 15 | Z19 β Lambda probe heater (up to May 2006) G39 β Lambda probe (up to May 2006) G130 β Lambda probe after catalytic converter (up to May 2006) J583 β NOx sensor control unit (up to May 2006) |
| 10 | Z28 β Lambda probe heater G39 β Lambda probe G130 β Lambda probe after catalytic converter (from May 2006) J583 β NOx sensor control unit (from May 2006) Z28 β Lambda probe heater (from May 2006) |
|
| 20 | V192 β Brake vacuum pump (from May 2007) | |
| F22 | 5 | F47 β Brake pedal switch (to November 2005) G476 β Clutch position sender |
| F23 | 5 | J299 β Secondary air pump relay (BSF) |
| 10 | N18 β Exhaust gas recirculation valve N75 β Charge pressure control solenoid valve (up to May 2006) N80 β Activated charcoal filter system solenoid valve 1 (from May 2006) V144 β Fuel system diagnostic pump (BGQ,BGP) N345 β Exhaust gas recirculation cooler changeover valve N381 β Exhaust gas recirculation cooler changeover valve 2 (up to May 2006) N276 β Fuel pressure regulating valve (from May 2006) J623 β Engine control unit (from May 2006) N156 β Variable intake manifold changeover valve (from May 2006) |
|
| 15 | N276 β Fuel pressure regulating valve (up to May 2006) N218 β Secondary air inlet valve (from May 2006) N276 β Fuel pressure regulating valve (from May 2007) J623 β Engine control unit (from May 2007) N156 β Variable intake manifold changeover valve (from May 2007) |
|
| F24 | 10 | F265 β Map-controlled engine cooling system thermostat J293 β Radiator fan control unit N18 β Exhaust gas recirculation valve N80 β Activated charcoal filter solenoid valve 1 N156 β Variable intake manifold changeover valve N205 β Inlet camshaft control valve 1 N316 β Intake manifold flap valve V157 β Intake manifold flap motor |
| F25 | 40 | J519 β Onboard supply control unit (up to May 2006) |
| 30 | J519 β Onboard supply control unit (A/1) (from May 2006) | |
| F26 | 40 | J519 β Onboard supply control unit (up to May 2006) |
| 30 | J519 β Onboard supply control unit (D/1) (from May 2006) | |
| F27 | 50 | J179 β Automatic glow period control unit |
| 40 | J299 β Secondary air pump relay | |
| F28 | 40 | J681 β Terminal 15 voltage supply relay 2 |
| F29 | 50 | J496 β Additional coolant pump relay S44 β Seat adjustment thermal fuse 1 |
| F30 | 50 | Not assigned (up to May 2006) J59 β X-contact relief relay (from May 2006) |
| 40 | J519 β Onboard supply control unit (I/1) (from May 2007) | |
| Relay | ||
| A1 | Terminal 30 voltage supply relay -J317- (458) Terminal 30 voltage supply relay -J317- (100) Terminal 30 voltage supply relay -J317- (370) |
|
| A2 | Secondary air pump relay -J299- (100) Sensor for current measurement -G582- (488; up to May 2006, only engine code BLG) Wiring bridge (only models with diesel engine) |
|
Relay code number 100 is replaced by relay code number 370 depending on production.
| No. |
A |
Function/component |
| 1 | 150 | C β Alternator (90A/120A) |
| 200 | C β Alternator (140A) | |
| 2 | 80 | J500 β Power steering control unit V187 β Electromechanical power steering motor |
| 3 | 50 | J293 β Radiator fan control unit V7 β Radiator fan V177 β Radiator fan 2 |
| 4 | 40 |
Special equipment (up to May 2006)
J359 β Low heat output relay (1st stage), (from December 2006)
Z35 β Auxiliary air heater element (from December 2006) |
| 5 | 100 |
Fuses on fuse holder C, on left under dash panel SC43-SC45, SC28, SC22, SC18, SC19, SC12, (up to November 2005)
Fuses on fuse holder C, on left under dash panel SC43-SC45, SC28, SC22, SC15-SC20, SC 12, SC22-SC27, SC19, SC38, (from November 2005)
J604 β Auxiliary air heater control unit (up to November 2005) |
| 6 | 80 | Fuses on fuse holder C, on left under dash panel SC43-SC45, SC28, SC22, SC18, SC19, SC12 J360 β High heat output relay (1st and 3rd stages), (from December 2006) Z35 β Auxiliary air heater element (from November 2006)
|
| 100 | J604 β Auxiliary air heater control unit (from November 2005) Z35 β Auxiliary air heater element (from November 2005) Optional equipment |
|
| 7 | 50 | Trailer operation |
| 40 | Special equipment, disabled persons | |
| 30 | Special equipment, criminal investigation department |
Engine compartment fuse box (high)
| No. |
A |
Function/component |
| F1 | 30 | J104 β ABS with EDL control unit |
| F2 | 30 | J104 β ABS with EDL control unit |
| F3 | 20 | J393 β Convenience system central control unit V217 β Front passenger side wiper motor (from May 2005) Not assigned (from November 2005) |
| F4 | 5 | J519 β Onboard supply control unit |
| F5 | 20 | H2 β Treble tone horn (up to May 2005) H7 β Bass tone horn (up to May 2005) |
| 15 | J519 β Onboard supply control unit (horn) (from May 2005) | |
| F6 | 5 | N276 β Fuel pressure regulating valve (up to May 2005) |
| 15 | N276 β Fuel pressure regulating valve (from May 2005) J17 β Fuel pump (from May 2007) |
|
| 20 | N152 β Ignition transformer (up to May 2005) Nβ¦ β Ignition coils 1-4 with output stage (up to May 2005) |
|
| F7 | 5 | F47 β Cruise control system brake pedal switch G476 β Clutch position sender Not assigned (from November 2005) |
| 40 | SF2 β Fuse 2 on fuse holder F (rear battery) (from May 2007) | |
| F8 | 10 | F265 β Map-controlled engine cooling system thermostat N205 β Inlet camshaft control valve 1 N80 β Activated charcoal filter solenoid valve 1 (pulsed) N18 β Exhaust gas recirculation valve N316 β Intake manifold flap air control valve V157 β Intake manifold flap motor N79 β Crankcase breather heater element N156 β Variable intake manifold changeover valve J293 β Radiator fan control unit Not assigned (from May 2005) |
| 15 | R190 β Digital radio satellite receiver (from May 2007) | |
| F9 | 10 | J583 β NOx sensor control unit (up to May 2005) J179 β Automatic glow period control unit (up to May 2005) J17 β Fuel pump relay (up to May 2005) N249 β Turbocharger air recirculation valve (from May 2005) N80 β Activated charcoal filter solenoid valve 1 (from May 2005) N75 β Charge pressure control solenoid valve (from May 2005) |
| F10 | 10 | G130 β Lambda probe after catalytic converter (up to May 2005) G131 β Lambda probe 2 after catalytic converter (up to May 2005) N18 β Exhaust gas recirculation valve (up to May 2005) N75 β Charge pressure control solenoid valve (up to May 2005) N345 β Exhaust gas recirculation cooler changeover valve (up to May 2005) J299 β Secondary air pump relay (up to May 2005) Not assigned (from May 2005) V144 β Fuel system diagnostic pump (USA/Canada) (from November 2005) G42 β Intake air temperature sender (from May 2007) G70 β Air mass meter (from May 2007) |
| F11 | 25 | J220 β Motronic control unit (up to May 2005) |
| 30 | J361 β Simos control unit (up to May 2005) J248 β Diesel direct injection system control unit (up to May 2005) |
|
| 10 | Z19 β Lambda probe heater (from May 2005) Z28 β Lambda probe 2 heater 2 (from May 2007) |
|
| F12 | 15 | G39 β Lambda probe (AXW, BAG, BCA, BKG, BLP, BLX and BLY) (up to May 2005) G108 β Lambda probe 2 (AXW, BLX and BLY) (up to May 2005) G130 β Lambda probe after catalytic converter (BCA) (up to May 2005) J583 β NOx sensor control unit (BAG, BKG and BLP) (up to May 2005) |
| 10 | Z29 β Lambda probe 1 heater after catalytic converter (from May 2005) Z30 β Lambda probe 2 heater after catalytic converter (from May 2007) |
|
| F13 | 15 | J217 β Automatic gearbox control unit (up to May 2005) J743 β Mechatronics for dual clutch gearbox |
| 30 | J743 β Mechatronic control unit (from May 2007) | |
| F14 | β | Not assigned |
| F15 | 40 | B β Starter (terminal 50) (up to May 2005) |
| 10 | V50 β Coolant circulation pump (from May 2005) | |
| F16 | 15 | J527 β Steering column electronics control unit (up to May 2005) |
| 5 | J104/J527 β Steering column control unit (from May 2005) | |
| F17 | 10 | J285 β Display control unit in dash panel insert (up to May 2005) |
| 5 | J285 β Control unit in dash panel insert (from May 2005) | |
| F18 | 30 | J608 β Special vehicle control unit (up to May 2005) R12 β Amplifier (from May 2005) J608 β Control unit for special vehicles (from May 2007) |
| F19 | 15 | R β Radio J503 β Control unit with display for radio and navigation system (up to May 2005) R19 β Digital satellite radio (from May 2007) |
| F20 | 10 | J412 β Mobile telephone operating electronics control unit (telephone /preparation for telephone) J503 β Control unit with display for radio navigation system (from May 2005) |
| 5 | J412 β Mobile telephone operating electronics control unit (from November 2005) | |
| F21 | β | Not assigned |
| F22 | β | Not assigned |
| F23 | 10 | Not assigned (up to May 2005) J623 β Engine control unit (from May 2005) J271 β Motronic current supply relay (100) (from May 2005) |
| 5 | J623 β Engine control unit (from November 2005) | |
| F24 | 10 | J533 β Data bus diagnostic interface (up to May 2005) |
| 5 | J533 β Data bus diagnostic interface (from May 2005) | |
| F25 | 40 | Not assigned (up to May 2007) J519 β Onboard supply control unit (A1) (from May 2007) |
| F26 | 10 | J220 β Motronic control unit (up to May 2005) Not assigned (from May 2005) |
| 5 | J248 β Diesel direct injection system control unit (up to May 2005) J317 β Terminal 30 voltage supply relay (up to May 2007) |
|
| 40 | J519 β Onboard supply control unit (D1) (from May 2007) | |
| F27 | 10 | N79 β Heater element for crankcase breather (up to May 2005) Not assigned (from May 2005) |
| F28 | 20 | J217 β Automatic gearbox control unit (up to May 2005) F125 β Multifunction switch (up to May 2005) |
| 25 | J623 β Engine control unit (from May 2005) | |
| F29 | 20 | Nβ¦ β Ignition coils 1-4 with output stage (up to May 2005) Nβ¦ β Injectors cylinders 1-4 (up to May 2005) |
| 5 | J496 β Additional coolant pump relay (from May 2005) J299 β Secondary air pump relay (from May 2005) |
|
| F30 | 20 | J162 β Heater control unit (up to May 2005) J485 β Auxiliary heater operation relay (from May 2005) |
| F31 | 25 | V β Windscreen wiper motor (up to May 2005) |
| 30 | V β Windscreen wiper motor (from May 2005) | |
| F32 | 10 | Nβ¦ β Injectors (up to May 2005) Not assigned (from May 2005) |
| F33 | 15 | G6 β Fuel system pressurisation pump (up to May 2005) Not assigned (from May 2005) |
| F34 | β | Not assigned |
| F35 | β | Not assigned |
| F36 | β | Not assigned |
| F37 | β | Not assigned |
| F38 | 10 | V48 β Left headlight range control motor (up to May 2005) V49 β Right headlight range control motor (up to May 2005) J293 β Radiator fan control unit (from May 2005) N205 β Exhaust camshaft control valve 1 (from November 2005) N112 β Secondary air inlet valve (from May 2007) N321 β Exhaust flap 1 valve (from May 2007) N320 β Secondary air inlet valve 2 (from May 2007) V144 β Diagnosis pump for fuel system (from May 2007) N80 β Activated charcoal filter solenoid valve 1 (from May 2007) N156 β Secondary air inlet valve (from May 2007) N318 β Exhaust camshaft control valve 1 (from May 2007) |
| F39 | 5 | G226 β Oil level and oil temperature sender (up to November 2005) F β Brake light switch (up to November 2005) F47 β Brake pedal switch (from November 2005) G476 β Clutch position sender (from November 2005) |
| F40 | 20 | Dash panel fuse holder (SC1-SC6, SC7-SC11, SC29-SC31) (up to May 2005) N70 β Ignition coil 1 with output stage (from May 2005) N127 β Ignition coil 2 with output stage (from May 2005) N291 β Ignition coil 3 with output stage (from May 2005) N292 β Ignition coil 4 with output stage (from May 2005) |
| F41 | β | Not assigned |
| F42 | 10 | G70 β Air mass meter (AZV, BKC, BKD, BDK, BJB) J757 β Engine component current supply relay (from November 2005) |
| 5 | J49 β Electric fuel pump 2 relay (BGU, BCA) J271 β Motronic current supply relay (to November 2005) |
|
| F43 | 30 | Not assigned (up to May 2005) N70 β Ignition coil 1 with output stage (from May 2005) N127 β Ignition coil 2 with output stage (from May 2005) N291 β Ignition coil 3 with output stage (from May 2005) N292 β Ignition coil 4 with output stage (from May 2005) N323 β Ignition coil 5 with output stage (from May 2005) N324 β Ignition coil 6 with output stage (from May 2005) |
| F44 | β | Not assigned |
| F45 | β | Not assigned |
| F46 | β | Not assigned |
| F47 | 40 | J519 β Onboard supply control unit (up to November 2005) |
| 30 | J519 β Onboard supply control unit (D/1 left) (from November 2005) | |
| F48 | 40 | J519 β Onboard supply control unit (up to November 2005) |
| 30 | J519 β Onboard supply control unit (A/1 right) (from November 2005) | |
| F49 | 40 | Not assigned (up to May 2005) J681 β Terminal 15 voltage supply relay 2 (from May 2005) SF2 β Fuse in fuse holder F (rear battery) (from November 2005) J519 β Onboard supply control unit (L1) (from November 2005) |
| F50 | β | Not assigned |
| F51 | 50 | Q10 β Glow plug 1 (up to May 2005) Q11 β Glow plug 2 (up to May 2005) Q12 β Glow plug 3 (up to May 2005) Q13 β Glow plug 4 (up to May 2005) |
| 40 | J299/V101 β Secondary air pump relay (from May 2005) | |
| F52 | 50 | J519 β Onboard supply control unit SC40-SC42, SC46, SC47, SC49 (up to May 2005) |
| 40 | J59 β X-contact relief relay (from May 2005) | |
| F53 | 50 | Safety cutout for seat adjustment S44 β Seat adjustment thermal fuse 1, SB111 β Positive connection 1 (30a) (from November 2005) |
| F54 | 50 | J293 β Radiator fan control unit (up to May 2005) Not assigned (from May 2005) |
| Relay | ||
| A1 | Terminal 15 voltage supply relay -J329- (433) (up to May 2005) Motronic current supply relay -J271- (100) (up to November 2005) Engine components current supply relay -J757- (167) (from November 2005) |
|
| A2 | Terminal 50 voltage supply relay -J682- (433) (up to May 2005) Additional coolant pump relay -J496- (100) (from May 2005) |
|
| A3 | Current supply relay for engine components -J757- (167) (up to May 2005) Not assigned (from November 2005) |
|
| A4 | Terminal 30 voltage supply relay -J317- (458) (up to May 2005) Engine components current supply relay -J757- (167) (up to November 2005) Motronic current supply relay -J271- (100) (from May 2005) |
|
| No. |
A |
Function/component |
| 1 | 150 | C β Alternator (90A/120A) |
| 200 |
C β Alternator (1401A) TV2 β Terminal 30 wiring junction (rear battery) |
|
| 2 | 80 | J500 β Power steering control unit V187 β Electromechanical power steering motor |
| 3 | 50 | J293 β Radiator fan control unit V7 β Radiator fan V177 β Radiator fan 2 (500 W) |
| 4 | 80 |
Not assigned (up to May 2005)
Fuses on fuse holder C, on left under dash panel: SC32-SC 37, Driver seat adjustment thermal fuse 1 β 30A (from May 2005)
Not assigned (from November 2005)
|
| 5 | 50 80 |
Fuses on fuse holder C, on left under dash panel SC12-SC17, SC19, SC22-SC27, SC32-SC38, SC43-SC45 (up to May 2005), (from May 2007)
|
| 100 | J604 β Auxiliary air heater control unit (from May 2005) Z35 β Auxiliary air heater element (from May 2005) |
|
| 50 | Fuses on fuse holder C, on left under dash panel SC12-SC17, SC19, SC22-SC27, SC32-SC38, SC43-SC45 (from November 2005) | |
| 6 | 125 |
SF1 β Fuse 1 on fuse holder F (rear battery) (up to May 2005), (from November 2005)
|
|
100
80
|
Fuses on fuse holder C, on left under dash panel: SC18-SC20, SC22-SC28, SC43-SC45 optional equipment (from May 2005) | |
| 7 | 50 |
Not assigned (up to May 2005), (from November 2005)
Fuses on fuse holder C, on left under dash panel: SC22-SC27 (from May 2005)
|
Relay carrier on onboard supply control unit (left under dash panel)
| No. |
A |
Function/component |
| A | 30 | Seat adjustment thermal fuse 1 -S44- (from May 2004) |
| B | 30 | Seat adjustment thermal fuse 1 -S44- (up to April 2004) |
| Relay | ||
| 1 | Fresh air blower relay -J13- (53) (only with auxiliary heater) Low heat output relay -J359- (373) |
|
| 2 | Auxiliary heater operation relay -J485- (449) High heat output relay -J360- (370) Secondary air pump relay -J299- (100) |
|
| 3 | Headlight washer system relay -J39- (53) Terminal 50 voltage supply relay -J682- (449 / 53) |
|
| 4 | Additional coolant pump relay -J496- (449) (BLG) Fuel supply relay -J643- (449) (BCA) Fuel pump relay -J17- (449) Headlight washer system relay -J39- (53) |
|
| 5 | Terminal 50 voltage supply relay -J682- (433 / 53) Fuel pump relay -J17- (449) (J17- and -J485- are mini-relays and can be found on a relay slot) Auxiliary heater operation relay -J485- (449) (J17- and -J485- are mini-relays and can be found on a relay slot) |
|
Relay assignment on relay carrier on onboard supply control unit
| No. |
Relay |
| 1 | Fresh air blower relay -J13- (up to May 2005) Terminal 15 voltage supply relay 2 -J681- |
| 2 | Heated exterior mirror relay -J99- (449) |
| 3 | Heated rear window relay -J9- (53) |
| 4 | Horn relay -J413- (449) |
| 5 | X-contact relief relay -J59- (460) |
| 6 | Double washer pump relay 2 -J730- (404) |
| 7 | Double washer pump relay 1 -J729- (404) |
| 8 | Not assigned |
| 9 | Terminal 30 voltage supply relay 2 -J689- (449) |
Additional relay carrier, under box on left in engine compartment
| No. |
Relay |
| 1 | Automatic glow period control unit -J179- (461) / (457) |
WARNING:Β Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.