Looking for Volkswagen Caddy fuse box diagrams? This article covers the third-generation Volkswagen Caddy (Model Code: 2K) before the first facelift, produced from 2003, and includes fuse box diagrams for Volkswagen Caddy 2003, 2004, 2005, 2006, 2007, 2008, 2009 and 2010, along with details about the location of the fuse panels inside the vehicle and a clear explanation of the assignment of each fuse (fuse layout).
What’s Included
ToggleFuse Box (A, B)
Fuse Box Location
Fuse Box Diagram (A)
High Voltage Fuses
Assignment of the high voltage fuses in the engine compartment (Fuse Box A)
| No. | Amps | Description |
|---|---|---|
| SA1 | 150A / 200A | Alternator (150A for 90A/110A alternators; 200A for 140A alternators) |
| SA2 | 80A | Electromechanical power steering motor, Power steering control unit (from May 2005) |
| SA3 | 50A / 80A | 50A: Radiator fan control unit, Radiator fan thermal switch (from May 2008) 80A (up to Apr 2008): Radiator fan control unit (models with increased blower output) |
| SA4 | 50A / 70A / 80A | up to Apr 2005: Onboard supply control unit (70A) May 2005 to Oct 2008: X-contact relief relay, Onboard supply control unit (50A with central locking / 80A without central locking) from Nov 2008: X-contact relief relay, Onboard supply control unit (80A) |
| SA5 | 100A / 80A / – | up to Apr 2006: Not used (-) May 2006 to Oct 2008: Fuses on fuse holder C (SC20-SC24, SC42-SC48, SC50-SC52; up to SC53 from Sep 2007) (100A) from Nov 2008: Fuses on fuse holder C (SC20-SC24; SC42-SC52 up to May 2009; SC43-SC53 from May 2009) (80A) |
| SA6 | 100A / 50A / 40A / – | up to Apr 2005: Fuses on fuse holder C (SC20-SC24, SC42-SC56) (100A) May 2005 to Oct 2006: Fuses on fuse holder C (SC20-SC24, SC42-SC48, SC50-SC52) (100A) Nov 2006 to Aug 2007: Not used (-) Sep 2007 to Apr 2008: Auxiliary heater element (100A) from May 2008: Low heat output relay (models with auxiliary air heater) (50A up to Oct 2008, 40A from Nov 2008) |
| SA7 | 100A / 80A / 50A | up to Apr 2008: Fuses on fuse holder C (SC39-SC41; models with trailer operation from May 2005) (50A) from May 2008: High heat output relay (models with auxiliary air heater) (100A up to Oct 2008, 80A from Nov 2008) |
Fuse Box Diagram (B) (2003-2005)
Fuses
Assignment of the fuses in the engine compartment (Fuse Box B) from October 2003 to April 2005
| No. | Amps | Description |
|---|---|---|
| 1 – 2 | 30A | ABS control unit |
| 3 | – | Not used |
| 4 | 5A | Onboard supply control unit |
| 5 | 20A | Treble tone horn, Bass tone horn, Dual tone horn relay |
| 6 | 20A | Ignition coils 1-4 with output stage, Ignition transformer |
| 7 | 5A | Brake pedal switch, Engine control units, Clutch position sender |
| 8 | 10A | Exhaust gas recirculation valve, Activated charcoal filter system solenoid valve 1, Radiator fan control unit, Intake manifold flap motor |
| 9 | 10A | Fuel pump relay (engine code BDJ, BJB) |
| 10 | 10A | Exhaust gas recirculation valve, Altitude correction solenoid valve, Exhaust gas recirculation cooler change-over valve |
| 11 | 25A / 30A | Motronic control unit (25A, engine code BCA, BGU) / Diesel direct injection system control unit (30A, engine code BDJ, BJB) |
| 12 | 15A | Lambda probe, Lambda probe after catalytic converter (engine code BCA) |
| 13 – 14 | – | Not used |
| 15 | 40A | Starter (Terminal 50) |
| 16 | 15A | Steering column electronics control unit |
| 17 | 10A | Control unit in dash panel insert |
| 18 | – | Not used |
| 19 | 15A | Radio, Control unit with display for radio and navigation system |
| 20 | 10A | Mobile telephone operating electronics control unit |
| 21 – 23 | – | Not used |
| 24 | 10A | Data bus diagnostic interface |
| 25 | – | Not used |
| 26 | 5A / 10A | Motronic control unit (10A, engine code BCA) / Terminal 30 voltage supply relay (5A, engine code BCA, BDJ, BJB) |
| 27 | 10A | Heater element for crankcase breather |
| 28 | – | Not used |
| 29 | 20A | Injectors cylinders 1-4 (engine code BCA) |
| 30 | 20A | Auxiliary heater control unit |
| 31 | 30A | Windscreen wiper motor |
| 32 | 40A | Glow plugs 1 & 2 (engine code BDJ) |
| 33 | 15A / 40A | Glow plugs 3 & 4 (40A, engine code BDJ) / Fuel system pressurisation pump (15A, engine code BCA, BGU) |
| 34 – 37 | – | Not used |
| 38 | 10A | Headlight range control regulator, Left/Right headlight range control motors |
| 39 | 5A | Oil level and oil temperature sender, Control unit in dash panel insert |
| 40 | 20A | Fuses SC1-SC6, SC9-SC16, SC25-SC27 on fuse holder C |
| 41 | – | Not used |
| 42 | 5A / 10A | Fuel pump relay (5A, engine code BCA, BGU) / Glow plug relay (engine code BDJ), Air mass meter (engine code BJB) (10A) |
| 43 – 44 | – | Not used |
| 45 | 15A | Lambda probe, Lambda probe after catalytic converter (engine code BGU) |
| 46 | – | Not used |
| 47 | 40A | Onboard supply control unit, left headlight (models with central locking) |
| 48 | 40A | Onboard supply control unit, right headlight (models with central locking) |
| 49 – 50 | – | Not used |
| 51 | 40A / 50A | Automatic glow period control unit, Glow plugs 1-4 (50A, engine code BJB) / Secondary air pump relay, Secondary air pump motor (40A, engine code BGU) |
| 52 | – | Not used |
| 53 | 25A | Driver door control unit, Front passenger door control unit |
| 54 | 50A | Radiator fan control unit |
Relays
Assignment of the relays in the engine compartment (Fuse Box B) from October 2003 to April 2005
| No. | Description |
|---|---|
| A1 | Terminal 15 voltage supply relay (433) |
| A2 | Terminal 50 voltage supply relay (433) |
| A3 | Fuel pump relay (167, engine code BCA, BGU), Glow plug relay (103, engine code BDJ) |
| A4 | Terminal 30 voltage supply relay (458, engine code BCA, BDJ, BJB), Current supply relay for Simos control unit (167, engine code BGU) |
Fuse Box Diagram (B) (From 2005)
Fuses
Assignment of the fuses in the engine compartment (Fuse Box B) from May 2005
| No. | Amps | Description |
|---|---|---|
| 1 | – | Not used |
| 2 | 15A | up to Apr 2008: Steering column electronics control unit from May 2008: Not used |
| 3 | 5A | Onboard supply control unit |
| 4 | 30A | ABS control unit |
| 5 | 15A | Mechatronic unit for dual clutch gearbox |
| 6 | 5A | up to Oct 2008: Control unit in dash panel insert, Steering column electronics control unit (from May 2008) from Nov 2008: Not used |
| 7 | 40A | up to Apr 2008: Not used from May 2008: Terminal 15 voltage supply relay 2 |
| 8 | 15A | Control unit with display for radio and navigation system, Radio |
| 9 | 5A / 10A | up to Oct 2006: Mobile telephone operating electronics control unit (10A) from Nov 2006: Mobile telephone operating electronics control unit (5A) |
| 10 | 5A / 10A | up to Apr 2008: Motronic current supply relay (engine code BSX), Terminal 15 voltage supply relay (engine code BDJ, BST, BLS, BSU, BJB, BCA, BUD; BUD only from Nov 2006), Engine control unit (engine code BCA, BUD, BSX; BUD and BSX only from Nov 2006) (5A) May 2008 to Apr 2009: Terminal 15 voltage supply relay (engine code BDJ, BST, BLS, BSU, BJB, BMM, BUD), Engine control unit (engine code BUD, BSX) (5A) / Motronic current supply relay (engine code BSX) (10A) from May 2009: Terminal 15 voltage supply relay (engine code BDJ, BST, BLS, BSU, BJB, BMM, CHWA) (5A) / Main relay (engine code BSX), Engine control unit (engine code BUD, BSX), Terminal 15 voltage supply relay (engine code BUD) (10A) |
| 11 | 20A | Auxiliary heater control unit |
| 12 | 5A | Data bus diagnostic interface |
| 13 | 15A / 30A | up to Oct 2007: Engine control unit (30A) from Nov 2007: Engine control unit (30A for engine code BDJ, BST, BLS, BSU, BJB, BMM, CHWA; 15A for engine code BSE, BSF, BSX, BUD) |
| 14 | 20A | Ignition coils 1-4 with output stage (engine code BCA, BSX, BUD; BSX and BUD only from Nov 2006), Ignition transformer (engine code BGU, BSE, BSF; BSE, BSF, BSX from Nov 2007) |
| 15 | 5A / 10A | 5A: Fuel pump relay (engine code BDJ, BST, BLS, BSU, BJB, BMM, CHWA), Glow plug relay (engine code BDJ, BST), Automatic glow period control unit (engine code BLS, BSU, BJB, BMM, CHWA) 10A: Fuel pump switch-off relay (engine code BSX), Injectors cylinders 1-4 (engine code BUD), Gas injection valves 1-4 (engine code BSX) |
| 16 | 30A | up to Apr 2008: ABS control unit from May 2008: Onboard supply control unit |
| 17 | 15A / 20A | up to Oct 2006: Onboard supply control unit (20A) Nov 2006 to Oct 2008: Treble tone horn, Bass tone horn (15A) from Nov 2008: Not used |
| 18 | 30A | Special vehicle control unit |
| 19 | 30A | Windscreen wiper motor |
| 20 | 10A / 40A | up to Apr 2009: Glow plugs 3 & 4 (engine code BDJ, BST) (40A) from May 2009: Glow plugs 3 & 4 (engine code BDJ, BST) (40A) / Fuel pump relay (engine code BSX) (10A) |
| 21 | 10A / 15A | 10A: Lambda probe (engine code BLS with particulate filter) / Lambda probe heater (engine code BLS with particulate filter from Nov 2006) 15A: Lambda probe, Lambda probe after catalytic converter (engine code BGU, BSE, BSF, BCA, BSX, BUD) / Lambda probe heater, Lambda probe 1 heater after catalytic converter (engine code BSE, BSF, BSX, BUD from Nov 2006) |
| 22 | 5A | Brake pedal switch (up to May 2006), Clutch position sender |
| 23 | 5A / 10A | 5A: Secondary air pump relay (engine code BGU, BSE, BSF), Exhaust gas recirculation valve (engine code BDJ, BST, BJB), Charge pressure control solenoid valve (engine code BJB, BLS, BSU, BMM), Exhaust gas recirculation cooler change-over valve (engine code BJB, BLS, BSU, BMM), Exhaust gas recirculation cooler change-over valves 2 (engine code BLS, BSU up to Oct 2007) 10A: Fuel tank shut-off valves 1-4 (engine code BSX), High pressure valve for gas mode (engine code BSX), Gas shut-off valve relay (engine code BSX from May 2009), Exhaust gas recirculation cooler change-over valve (engine code BJB, BLS, BSU, BMM, CHWA from May 2009), Charge pressure control solenoid valve (engine code BJB, BLS, BSU, BMM, CHWA from May 2009), Exhaust gas recirculation valve (engine code BJB from May 2009) |
| 24 | 10A | Exhaust gas recirculation valve (engine code BCA up to Oct 2006), Injectors cylinders 1-4 (engine code BSX), Activated charcoal filter system solenoid valve 1 (engine code BCA, BGU, BSE, BSF, BUD), Variable intake manifold change-over valve (engine code BGU, BSE, BSF), Intake manifold flap motor (engine code BDJ, BST), Radiator fan connection |
| 25 | 40A | up to Apr 2008: Onboard supply control unit from May 2008: ABS control unit |
| 26 | 40A | Onboard supply control unit |
| 27 | 40A / 50A | 40A: Glow plugs 1 & 2 (engine code BDJ, BST), Secondary air pump motor (engine code BGU, BSE, BSF) 50A: Automatic glow period control unit (engine code BJB, BLS, BSU, BMM, CHWA) |
| 28 | 40A | up to Apr 2008: Terminal 15 voltage supply relay 2 from May 2008: Not used |
| 29 | 30A | up to Apr 2008: Driver door control unit, Front passenger door control unit from May 2008: Fuses SC18-SC19, SC35-SC39, SC57-SC58 on fuse holder C (special vehicles) |
| 30 | 30A / 50A | up to Apr 2008: Fuses SC18-SC19, SC36-SC38 (from Nov 2007), SC53-SC56 on fuse holder C (special vehicles) (30A) / Auxiliary heater element (models with PTC heater from Sep 2007) (50A) from May 2008: Fuses SC39-SC41 on fuse holder C (trailer operation only; SC40-SC42 from May 2009) (50A) |
Relays
Assignment of the relays in the engine compartment (Fuse Box B) from May 2005
| No. | Description |
|---|---|
| A1 | Motronic current supply relay (100, engine code BUD, BSX), Terminal 30 voltage supply relay (100, engine code BDJ, BJB, BLS, BMM, BST, BSU), Current supply relay for Simos control unit (458, engine code BGU, BSE, BSF) |
| A2 | Glow plug relay (100, engine code BDJ, BST), Secondary air pump relay (100, engine code BGU, BSE, BSF), Push-in bridge (engine code BLS, BSU, BJB, BMM), Relay for gas shut-off valves (100, engine code BSX) |
Fuse Box (C)
Fuse Box Location
The fuse box is located on the dashboard, below and to the left of the steering wheel.
Fuse Box Diagram (2003-2007)
Fuses
Assignment of the fuses in the passenger compartment (Fuse Box C) from October 2003 to October 2007
| No. | Amps | Description |
|---|---|---|
| 1 | 10A / 15A | up to Oct 2006: 2-way radio switch, Ignition bypass button, Special vehicle control unit, 4-pin connector (special vehicles, 10A) from Nov 2006: 10-pin connector (models with electrical interfaces, 10A), Ignition bypass button, 2-way radio switch, 4-pin connector (special vehicles, 15A) |
| 2 | 5A | up to Apr 2005: Trailer detector control unit from May 2005: Fuel pump relay, Current supply relay for Simos control unit, Simos control unit, Data bus diagnostic interface, Engine/motor control unit |
| 3 | 5A | up to Apr 2005: Heater/heat output switch, High-pressure sender May 2005 to Oct 2006: Headlight range control regulator, Left/Right headlight range control motors from Nov 2006: Headlight range control regulator, Left/Right headlight range control motors, Traction control system switch, TCS and ESP button, Selector lever, Brake light switch, ABS control unit, Trailer detector control unit, Power steering control unit, Mechatronic unit for dual clutch gearbox |
| 4 | 5A | May 2005 to Oct 2006: Mobile telephone operating electronics control unit |
| 5 | 10A / 15A | May 2005 to Oct 2006: Air mass meter, Heater element for crankcase breather (15A) / Heater element for crankcase breather, Activated charcoal filter solenoid valve 1 (10A) from Nov 2006: Air mass meter, Heater element for crankcase breather, Reversing light switch, Auxiliary heater operation relay, Diagnostic connection (15A) / Heater element for crankcase breather, Activated charcoal filter solenoid valve 1, Reversing light switch, Auxiliary heater operation relay (10A) |
| 6 | 5A | from May 2005: Airbag control unit, Warning lamp for airbag deactivated on front passenger side |
| 7 | 5A | up to Oct 2006: Heater/heat output switch, Air conditioning system control unit |
| 8 | 5A | up to Oct 2006: Left/Right washer jet heater elements |
| 9 | 5A / 10A | up to Apr 2005: Airbag control unit, Warning lamp for airbag deactivated on front passenger side (5A) May 2005 to Oct 2006: Power steering control unit (10A) |
| 10 | 5A / 10A | up to Apr 2005: Mobile telephone operating electronics control unit (5A) May 2005 to Oct 2006: Reversing light switch, Auxiliary heater operation relay, Diagnostic connection (10A) |
| 11 | 10A | up to Apr 2005: Power steering control unit from May 2005: 2-pin connector (special vehicles) |
| 12 | 5A / 10A | from May 2005: Interior light switch, Taxi sign switch, Hands-free system button, Taximeter (5A) / 2-pin connector, 28-pin connector (10A) |
| 13 | 5A | May 2005 to Oct 2006: Trailer detector control unit (without central locking) |
| 14 | 5A | up to Oct 2006: Traction control system switch, TCS and ESP button, ABS control unit, Brake light switch (from Jun 2006) |
| 15 | 10A / 5A | up to Apr 2005: Reversing light switch, Auxiliary heater operation relay, Control unit with display for radio and navigation, Diagnostic connection (10A) May 2005 to Oct 2006: Selector lever, Mechatronic unit for dual clutch gearbox (5A) |
| 16 | 5A | up to Apr 2005: Data bus diagnostic interface from May 2005: Heater/heat output switch, High-pressure sender, Oil level and oil temperature sender, Control unit in dash panel insert |
| 17 | 7.5A | Left tail light and rear fog light bulb, Rear fog light cut-out contact switch (from May 2005) |
| 18 | 5A | from May 2005: Taxi alarm remote control control unit, 10-pin connector (from Nov 2006) |
| 19 | 5A / 10A | from May 2005: 10-pin connector (5A) / Taximeter, 2-way radio (10A) |
| 20 | 5A / 10A | May 2005 to Oct 2006: Automatic gearbox control unit (5A) from Nov 2006: 10-pin connector (10A) |
| 21 | 5A / 10A | May 2005 to Oct 2006: Selector lever, Tiptronic switch (5A) from Nov 2006: Light switch, Heater/heat output switch, Selector lever, Tiptronic switch, Automatic gearbox control unit, Air conditioning system control unit, Remote control receiver for auxiliary coolant heater, Diagnostic connection (10A) |
| 22 | 5A | up to Oct 2006: Remote control receiver for auxiliary coolant heater |
| 23 | 10A | up to Apr 2005: Brake light switch, Brake light bulbs (Left, Right, High-level), ABS control unit May 2005 to Oct 2006: Brake light switch, 3-pin connector from Nov 2006: 3-pin connector |
| 24 | 10A / 5A | up to Oct 2006: Light switch, Air conditioning system control unit, 16-pin connector, Heater/heat output switch (from May 2005) (10A) from Nov 2006: Interior monitoring sensor, Vehicle inclination sender, Alarm horn (5A) |
| 25 | 30A | up to Apr 2005: Heated driver/front passenger seat control units |
| 26 | 10A / 20A | up to Apr 2005: Engine control units (10A) from May 2005: Injectors cylinders 1-4 (20A) |
| 27 | 15A / 20A | up to Apr 2005: Rear window wiper motor (15A) from May 2005: Multifunction switch, Automatic gearbox control unit (20A) |
| 28 | 5A / 20A | Light switch (with central locking, 5A), Fog light switch (without central locking, up to Apr 2005, 20A), Rear fog light switch (without central locking, 20A) |
| 29 | 15A | Rear window wiper motor |
| 30 | 25A / 5A | up to Apr 2005: Light switch (without central locking), Fuses 37/38 on fuse holder C (25A) from May 2005: Heater/heat output switch, Air conditioning system control unit (5A) / Light switch (without central locking, 25A) |
| 31 | 15A / 5A | up to Apr 2005: Auxiliary heater operation relay (15A) May 2005 to Oct 2006: Onboard supply control unit (Rear window wiper motor, Windscreen and rear window washer pump) (15A) from Nov 2006: Heater/heat output switch, Air conditioning system control unit, Left/Right washer jet heater elements (5A) |
| 32 | 15A / 5A | up to Apr 2005: Onboard supply control unit (Rear window wiper motor, Windscreen and rear window washer pump) (15A) May 2005 to Oct 2006: Left/Right washer jet heater elements (5A) from Nov 2006: Onboard supply control unit (Rear window wiper motor, Windscreen and rear window washer pump) (15A) |
| 33 | 40A | from May 2005: Heater/heat output switch, Air conditioning system control unit, Auxiliary heater operation relay (Fresh air blower) |
| 34 | – | Not used |
| 35 | 40A | up to Apr 2005: Heater/heat output switch, Air conditioning system control unit, Auxiliary heater operation relay (Fresh air blower) |
| 36 | 20A | from May 2005: 10-pin connector |
| 37 | 15A | Right headlight dipped beam bulb |
| 38 | 15A / 10A | Left headlight dipped beam bulb (15A), Fluorescent light in rear/centre of high roof (special vehicles from May 2005, 10A) |
| 39 | – | Not used |
| 40 | 20A | Trailer detector control unit |
| 41 | 20A | Trailer socket |
| 42 | 15A / 30A | 12 V socket (15A without luggage compartment socket / 30A with luggage compartment socket), 12 V socket 2 (30A) |
| 43 | 15A | Electric fuel pump 2 relay, Fuel pump relay (Fuel system pressurisation pump) |
| 44 | 5A | up to Oct 2006: Interior monitoring sensor, Vehicle inclination sender, Alarm horn |
| 45 | 5A / 20A / 30A | up to Oct 2006: Aerial selection control unit (5A) May 2005 to Oct 2006: 10-pin connector (30A) from Nov 2006: Headlight washer system relay (20A), 10-pin connector (30A) |
| 46 | 7.5A | Onboard supply control unit (Interior monitoring deactivation switch, Front/Rear interior lights, Luggage compartment light, Reading lights, Illuminated vanity mirrors) |
| 47 | 25A / 30A | Cigarette lighter (25A), Rear cigarette lighter (up to Apr 2004, 30A) |
| 48 | 20A / 30A | up to Oct 2006: Headlight washer system relay (20A) from Nov 2006: Heated front seats control unit (30A) |
| 49 | 10A | Driver door control unit, Front passenger door control unit |
| 50 | 25A | from May 2005: Convenience system central control unit |
| 51 | 30A | from May 2005: Heated driver/front passenger seat control units, Heated front seats control unit |
| 52 | 25A | Onboard supply control unit (Heated rear windows), Fresh air blower relay (Heater/heat output switch, Air conditioning system control unit, Fresh air blower) |
| 53 | 25A | up to Apr 2005: Convenience system central control unit |
| 54 – 56 | – | Not used |
| 57 | 5A | from May 2005: Accident data memory (special vehicles), 10-pin connector (from Nov 2006/models with electrical interfaces) |
| 58 | 10A | from May 2005: 4-pin connector (special vehicles) |
Fuse Box Diagram (From 2007)
Fuses
Assignment of the fuses in the passenger compartment (Fuse Box C) from November 2007
| No. | Amps | Description |
|---|---|---|
| 1 – 8 | – | Not used |
| 9 | 10A | 4-pin connector (special vehicles), 10-pin connector (models with electrical interfaces) |
| 10 | 5A | Fuel pump relay, Current supply relay for Simos control unit, Simos control unit, Data bus diagnostic interface, Engine/motor control unit |
| 11 | 5A / 10A | up to Apr 2008: Parking aid control unit (5A), 2-pin connector (special vehicles) (10A) from May 2008: Parking aid control unit (5A) |
| 12 | 5A / 10A | Taximeter, Mirror taximeter (5A) / 2-pin connector, 28-pin connector (special vehicles) (10A) |
| 13 | 5A | Headlight range control regulator, Traction control system switch, TCS and ESP button, Selector lever, Brake light switch, ABS control unit, Brake light relay, Power steering control unit, Trailer detector control unit, Mechatronic unit for dual clutch gearbox, Left/Right headlight range control motors, All-wheel drive control unit (from Nov 2008) |
| 14 | 5A | Reversing light switch, Air mass meter, Heater element for crankcase breather, Auxiliary heater operation relay, Activated charcoal filter solenoid valve 1, Diagnostic connection |
| 15 | 5A | Airbag control unit, Warning lamp for airbag deactivated on front passenger side |
| 16 | 5A | Heater/heat output switch, High-pressure sender, Oil level and oil temperature sender, Control unit in dash panel insert, Low heat output relay (models with PTC heater), High heat output relay (models with PTC heater), Automatic anti-dazzle interior mirror, Air quality sensor (from May 2009), Climatronic control unit (from May 2009) |
| 17 | 7.5A | Left tail light and rear fog light bulb, Rear fog light cut-out contact switch |
| 18 | 5A | Taxi alarm remote control control unit, 10-pin connector |
| 19 | 5A / 10A | 10-pin connector (5A) / Taximeter, Mirror taximeter, 2-way radio (10A) |
| 20 | 7.5A / 10A | up to Oct 2008: 10-pin connector (10A) from Nov 2008: Onboard supply control unit (Interior monitoring deactivation switch, Front interior light, Luggage compartment light, Front passenger reading light, Driver side reading light, Rear interior light) (7.5A) |
| 21 | 10A | Light switch, Heater/heat output switch, Selector lever, Tiptronic switch, Rain and light sensor, Automatic gearbox control unit, Air conditioning system control unit, Remote control receiver for auxiliary coolant heater, Diagnostic connection, Climatronic control unit (from May 2008), Steering column electronics control unit (from Nov 2008), Control unit in dash panel insert (from Nov 2008), Data bus diagnostic interface (from May 2009) |
| 22 | 10A | up to Apr 2008: Not used from May 2008: Driver door control unit, Front passenger door control unit |
| 23 | 5A / 10A | up to Apr 2009: Interior light switch, Taxi sign switch, Hands-free system button, 3-pin connector, 10-pin connector (from May 2008) (10A) from May 2009: Interior light switch, Taxi sign switch, Hands-free system button (5A) / 3-pin connector, 10-pin connector (10A) |
| 24 | 5A | Interior monitoring sensor, Vehicle inclination sender, Alarm horn |
| 25 | – | Not used |
| 26 | 10A | up to Apr 2008: Not used from May 2008: 2-pin connector (special vehicles) |
| 27 | 15A / 20A | Cut-out relay for air conditioning system magnetic clutch (15A) / Multifunction switch, Automatic gearbox control unit (20A) |
| 28 | 5A / 20A | Light switch (5A) / Rear fog light switch (20A) |
| 29 | 15A | Rear window wiper motor |
| 30 | 25A | Light switch (vehicles without central locking) |
| 31 | 5A | Heater/heat output switch, Air conditioning system control unit, Left/Right washer jet heater elements, Climatronic control unit (from May 2008) |
| 32 | 15A | Onboard supply control unit (Rear window wiper motor, Windscreen and rear window washer pump) |
| 33 | 40A | Heater/heat output switch, Air conditioning system control unit, Auxiliary heater operation relay (Fresh air blower) |
| 34 | – | Not used |
| 35 | 10A | up to Apr 2008: Not used from May 2008: Fluorescent light in rear of high roof, Fluorescent light in centre of high roof |
| 36 | 20A | up to Apr 2008: 10-pin connector (special vehicles) from May 2008: Not used |
| 37 | 15A | Right headlight dipped beam bulb |
| 38 | 10A / 15A | up to Apr 2008: Left headlight dipped beam bulb (15A), Fluorescent light in rear/centre of high roof (special vehicles, 10A) from May 2008: Left headlight dipped beam bulb (15A) |
| 39 | 20A | up to Apr 2009: Trailer detector control unit, 10-pin connector (special vehicles) from May 2009: 10-pin connector (special vehicles) |
| 40 | 20A | Trailer detector control unit |
| 41 | 20A | Trailer detector control unit |
| 42 | 15A / 20A / 30A | up to Apr 2009: 12 V socket (15A without luggage compartment socket / 30A with luggage compartment socket), 12 V socket 2 (30A) from May 2009: Trailer detector control unit |
| 43 | 15A | Electric fuel pump 2 relay, Fuel pump relay, Fuel supply relay (Fuel system pressurisation pump) |
| 44 | 40A | Fresh air blower control unit (Fresh air blower) |
| 45 | 20A | Headlight washer system relay (Headlight washer system pump) |
| 46 | 7.5A / 15A | up to Oct 2008: Onboard supply control unit (Interior monitoring deactivation switch, Front/Rear interior lights, Luggage compartment light, Reading lights, Illuminated vanity mirrors) (7.5A) from Nov 2008: Horn relay (Treble/Bass horns) (15A) |
| 47 | 25A | Cigarette lighter |
| 48 | 30A | Heated front seats control unit |
| 49 | 10A / 30A | up to Apr 2008: Driver door control unit, Front passenger door control unit (models with central locking) (10A) from May 2008: Driver door control unit, Front passenger door control unit (models with electric window regulators) (30A) |
| 50 | 25A | Convenience system central control unit |
| 51 | 30A | 10-pin connector (special vehicles) |
| 52 | 25A | Onboard supply control unit (Heated rear windows), Fresh air blower relay (Heater/heat output switch, Air conditioning system control unit, Fresh air blower series resistor, Fresh air blower) |
| 53 | 15A / 30A | up to Apr 2009: Not used from May 2009: 12 V socket (15A without luggage compartment socket / 30A with luggage compartment socket), 12 V socket 2 (30A) |
| 54 – 56 | – | Not used |
| 57 | 5A | 2-way radio switch, Ignition bypass button, Accident data memory, 10-pin connector |
| 58 | 10A | 4-pin connector (special vehicles) |
| 59 – 60 | – | Not used |
Relay Box (1)
Location and Diagram
Relay carrier located under electronics box.
Relays
Assignment of the relays under electronics box
Relay Box (2)
Location and Diagram
Relay carrier located on the onboard supply control unit.
Relays
Assignment of the relays on the onboard supply control unit
| No. | Description |
|---|---|
| B1 | Terminal 15 voltage supply relay 2 -J681- (460) (From May 2005) |
| B2 | – |
| B3 | – |
| B4 | Terminal 30 voltage supply relay 2 -J689- (449) |
| B5 | Heated rear window relay -J9- (53) |
| B6 | Dual tone horn relay -J4- (449) (Up to April 2005) Horn relay -J413- (449) (From May 2005) |
| B7 | Double washer pump relay 1 -J729- (395/404) |
| B8 | Double washer pump relay 2 -J730- (395/404) |
| B9 | X-contact relief relay -J59- (460) |
Relay Box (3)
Location and Diagram
Relay carrier located under the instrument panel.
Relays
Assignment of the relays under the instrument panel
| No. | Description |
|---|---|
| 1 | up to Apr 2007: Not used May 2007 to Apr 2008: Brake light relay -J111- (489) May 2008 to Apr 2009: Brake light relay -J111- (489), Taxi alarm remote control control unit -J601- from May 2009: Brake light relay -J111- (489) |
| 2 | Headlight washer system relay -J39- (53) |
| 3 | up to Apr 2005: Fuel pump relay -J17- (449, Engine code BDJ, BJB) May 2005 to Oct 2006: Fuel pump relay -J17- (449), Electric fuel pump 2 relay -J49- (449, Engine code BCA, BGU, BSE, BSF, BSX, BUD) from Nov 2006: Fuel pump relay -J17- (449), Electric fuel pump 2 relay -J49- (449, Engine code BSE, BSF, BSX, BUD) |
| 4 | up to Apr 2005: Electric fuel pump 2 relay -J49- (449, Engine code BCA, BGU) May 2005 to Apr 2007: Fresh air blower relay -J13- (404) May 2007 to Apr 2008: Fresh air blower relay -J13- (404), Low heat output relay -J359- (from Sep 2007) May 2008 to Apr 2009: Fresh air blower relay -J13- (404), Fuel pump switch-off relay -J333- (404, Engine code BSX) from May 2009: Fresh air blower relay -J13- (449), Fuel pump switch-off relay -J333- (404, Engine code BSX) |
| 5 | up to Apr 2005: Not used May 2005 to Apr 2008: Fuel pump switch-off relay -J333- (404, Engine code BSX) May 2008 to Apr 2009: Low heat output relay -J359- from May 2009: Low heat output relay -J359- (53) |
| 6 | up to Apr 2007: Not used from May 2007: Cut-out relay for air conditioning system magnetic clutch -J246- (53) |
| 7 | up to Apr 2007: Auxiliary heater operation relay -J485- (53) May 2007 to Apr 2008: Auxiliary heater operation relay -J485- (53), High heat output relay -J360- (from Sep 2007) May 2008 to Apr 2009: Auxiliary heater operation relay -J485- (53), High heat output relay -J360- from May 2009: Auxiliary heater operation relay -J485- (53), High heat output relay -J360- (100) |
| 8 | up to Apr 2005: Not used May 2005 to Apr 2009: Terminal 50 voltage supply relay -J682- (433) from May 2009: Terminal 50 voltage supply relay -J682- (53) |
| 9 | up to Apr 2009: Not used from May 2009: Taxi alarm remote control control unit -J601- |