| J329 | Terminal 15 voltage supply relay, in the E box |
| SB38 | Fuse -38-, in the E box |
| SB40 | Fuse -40-, in the E box |
| SB47 | Fuse -47-, in the E box |
| SB48 | Fuse -48-, in the E box |
| T8a | 8-pin connector, on the onboard power supply control unit (black) |
| T11a | 11-pin connector, on the onboard power supply control unit (black) |
| T11b | 11-pin connector, on the onboard power supply control unit (brown) |
| T40a | 40-pin connector, at the E box |
| 374 | Earth connection -9-, in interior wiring harness |
| ** | not valid for vehicles with gas discharge lamp |
| G65 | High pressure sender |
| J104 | ABS control unit with TCS/ABS with EDS and TCS/ESP |
| J162 | Heater control unit |
| J255 | Climatronic control unit |
| J345 | Trailer detector control unit |
| J431 | Headlight range control unit, below dash panel, centre |
| J492 | Four-wheel drive control unit |
| J500 | Electro/mechanical power steering control unit |
| SC1 | Fuse -1-, in fuse holder |
| SC2 | Fuse -2-, in fuse holder |
| SC3 | Fuse -3-, in fuse holder |
| SC4 | Fuse -4-, in fuse holder |
| SC5 | Fuse -5-, in fuse holder |
| SC6 | Fuse -6-, in fuse holder |
| SC7 | Fuse -7-, in fuse holder |
| SC8 | Fuse -8-, in fuse holder |
| SC9 | Fuse -9-, in fuse holder |
| SC10 | Fuse -10-, in fuse holder |
| SC11 | Fuse -11-, in fuse holder |
| T4s | 4-pin connector, behind radio or behind radio navigation system (telephone preinstallation) |
| T6j | 6-pin connector, on front left in engine compartment (black) |
| T6w | 6-pin connector, in the holder on the fuel level sender -2- |
| Y7 | Automatic anti-dazzle interior mirror |
| A20 | Positive connection -1- (15a), in dash panel wiring harness |
| E9 | Fresh air blower switch |
| J59 | X contact relief relay, on the onboard power supply control unit |
| J234 | Airbag control unit, on the front of the tunnel |
| J... | Engine control units |
| SC29 | Fuse -29-, in fuse holder |
| SC30 | Fuse -30-, in fuse holder |
| SC31 | Fuse -31-, in fuse holder |
| SC40 | Fuse -40-, in fuse holder |
| SC41 | Fuse -41-, in fuse holder |
| SC42 | Fuse -42-, in fuse holder |
| SC49 | Fuse -49-, in fuse holder |
| T2a | 2-pin connector, on the onboard power supply control unit (brown) |
| T10e | 10-pin connector, behind right dash panel |
| T12d | 12-pin connector, in plenum chamber (blue) |
| A12 | Positive connection -1- (75a), in dash panel wiring harness |
| A20 | Positive connection -1- (15a), in dash panel wiring harness |
| * | not valid for vehicles with automatic gearbox Gearbox |
| ** | only on vehicles with heating or climatic |
| only on vehicles with rear window wiper |
| J126 | Fresh air blower control unit |
| J162 | Heater control unit |
| J255 | Climatronic control unit |
| J301 | Air conditioning system control unit |
| J386 | Door control unit, driver side |
| J387 | Door control unit, front passenger side |
| SC12 | Fuse -12-, in fuse holder |
| SC13 | Fuse -13-, in fuse holder |
| SC14 | Fuse -14-, in fuse holder |
| SC15 | Fuse -15-, in fuse holder |
| SC16 | Fuse -16-, in fuse holder |
| SC17 | Fuse -17-, in fuse holder |
| SC22 | Fuse -22-, in fuse holder |
| SC23 | Fuse -23-, in fuse holder |
| SC24 | Fuse -24-, in fuse holder |
| T10e | 10-pin connector, behind right dash panel |
| B315 | Positive connection -1- (30a), in interior wiring harness |
| B318 | Positive connection -4- (30a), in interior wiring harness |
| * | only on vehicles with rain detector sensor and automatic driving lights activation |
| ** | only on vehicles with climatronic |
| G273 | Interior monitoring sensor |
| H12 | Alarm horn |
| J17 | Fuel pump relay, at additional relay holder below dash panel |
| J39 | Headlight washer system relay |
| J245 | Sliding sunroof adjustment control unit |
| J388 | Door control unit, rear left |
| J389 | Door control unit, rear right |
| J446 | Parking aid control unit |
| J643 | Fuel supply relay, at additional relay holder below dash panel |
| J774 | Heated front seat control unit, at passenger seat |
| SC18 | Fuse -18-, in fuse holder |
| SC25 | Fuse -25-, in fuse holder |
| SC26 | Fuse -26-, in fuse holder |
| SC27 | Fuse -27-, in fuse holder |
| SC32 | Fuse -32-, in fuse holder |
| SC33 | Fuse -33-, in fuse holder |
| SC34 | Fuse -34-, in fuse holder |
| SC35 | Fuse -35-, in fuse holder |
| SC36 | Fuse -36-, in fuse holder |
| SC37 | Fuse -37-, in fuse holder |
| B316 | Positive connection -2- (30a), in interior wiring harness |
| * | only for Combi |
| ** | for diesel engines |
| *** | for engine identification characters BCA, BGU |
| E22 | Intermittent wiper switch |
| E34 | Rear wiper switch |
| E38 | Intermittent wiper control |
| G85 | Steering angle sender |
| J527 | Steering column electronics control unit |
| T20a | 20-pin connector, at steering column electronics control unit |
| 43 | Earth point -1-, on lower part of right A-pillar |
| 366 | Earth connection -1-, in interior wiring harness |
| 367 | Earth connection -2-, in interior wiring harness |
| 368 | Earth connection -3-, in interior wiring harness |
| 381 | Earth connection -16-, in interior wiring harness |
| 605 | Earth point, on steering column |
| B383 | Connection -1- (CAN H, drive), in interior wiring harness |
| B390 | Connection -1- (CAN L, drive), in interior wiring harness |
| B397 | Connection -1- (CAN H, convenience), in interior wiring harness |
| B406 | Connection -1- (CAN L, convenience), in interior wiring harness |
| D | Ignition starter switch |
| E86 | Multi-function display call-up button |
| E109 | Multi-function display, memory switch |
| F319 | Selector lever locked in position P switch |
| G85 | Steering angle sender |
| J527 | Steering column electronics control unit |
| N376 | Ignition key withdrawal lock solenoid |
| T12c | 12-pin connector, on the onboard power supply control unit (black) |
| T20a | 20-pin connector, at steering column electronics control unit |
| * | only on vehicles with multi-function display (MFD) |
| ** | only on vehicles with automatic Gearbox |
| E2 | Turn signal switch |
| E4 | Headlight dipper/flasher switch |
| E45 | Cruise control system switch |
| E227 | Cruise control system (CCS) button (Set) |
| F350 | Coil |
| H | Horn activation |
| J527 | Steering column electronics control unit |
| J... | Engine control units |
| T12d | 12-pin connector, in plenum chamber (blue) |
| T12h | 12-pin connector, at the coil, in the steering wheel |
| T20a | 20-pin connector, at steering column electronics control unit |
| * | only on vehicles with GRA |
| ** | not valid for vehicles with multi-function steering wheel |
| G397 | Rain and light detector sensor |
| J400 | Wiper motor control unit |
| T3a | 3-pin connector, on rain and light detector sensor |
| T4a | 4-pin connector, at windscreen wiper motor |
| T8a | 8-pin connector, on the onboard power supply control unit (black) |
| V | Windscreen wiper motor |
| 13 | Earth point, on right in engine compartment (at longitudinal member) |
| 124 | Earth connection, in engine compartment right wiring harness |
| 368 | Earth connection -3-, in interior wiring harness |
| B528 | Connection -1- (LIN bus), in interior wiring harness |
| * | only on vehicles with rain detector sensor and automatic driving lights activation |
| ** | not valid for vehicles with gas discharge lamp |
| J729 | Relay -1- for windscreen washer pump, on the onboard power supply control unit |
| J730 | Relay -2- for windscreen washer pump, on the onboard power supply control unit |
| T2b | 2-pin connector, on the windscreen and rear window washer pump |
| T4b | 4-pin connector, at rear window wiper motor |
| T5a | 5-pin connector, on left C-pillar (pink) |
| T5b | 5-pin connector, in the rear lid (black) |
| T6a | 6-pin connector, on the onboard power supply control unit (black) |
| V5 | Windscreen washer pump |
| V12 | Rear window wiper motor |
| V59 | Windscreen and rear window washer pump |
| 98 | Earth connection, in rear lid wiring harness |
| 367 | Earth connection -2-, in interior wiring harness |
| B183 | Connection -1- (windscreen washer pump), in interior wiring harness |
| B184 | Connection -2- (windscreen washer pump), in interior wiring harness |
| * | only on vehicles with rear window wiper |
| only on vehicles with rear window wiper |
| E1 | Light switch |
| E7 | Fog light switch |
| E18 | Rear fog light switch |
| L9 | Lamp for light switch illumination |
| T10b | 10-pin connector, at light switch |
| T12a | 12-pin connector, on the onboard power supply control unit (black) |
| T16a | 16-pin connector, on the onboard power supply control unit (black) |
| 368 | Earth connection -3-, in interior wiring harness |
| A19 | Connection (58d), in dash panel wiring harness |
| A116 | Connection -2- (58d), in dash panel wiring harness |
| B317 | Positive connection -3- (30a), in interior wiring harness |
| * | only on vehicles with fog lights |
| ** | only on vehicles with automatic driving lights activation |
| L22 | Fog light bulb, left |
| L23 | Fog light bulb, right |
| M1 | Side light bulb, left |
| M5 | Turn signal bulb, front left |
| M29 | Dipped beam bulb, left |
| M30 | Main beam bulb, left |
| T2c | 2-pin connector, at fog light, left |
| T2d | 2-pin connector, at fog light, right |
| T10c | 10-pin connector, at left headlight |
| T11a | 11-pin connector, on the onboard power supply control unit (black) |
| T11b | 11-pin connector, on the onboard power supply control unit (brown) |
| V48 | Headlight range control motor, left |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| 124 | Earth connection, in engine compartment right wiring harness |
| 369 | Earth connection -4-, in interior wiring harness |
| 671 | Earth point -1-, on left in engine compartment (at longitudinal member) |
| B277 | Positive connection -1- (15a), in interior wiring harness |
| B455 | Connection (headlight range control), in interior wiring harness |
| * | only on vehicles with fog lights |
| ** | not valid for vehicles with gas discharge lamp |
| E20 | Switches and instruments light regulator |
| E102 | Headlight range control adjuster |
| L54 | Headlight range control/adjuster light bulb |
| M3 | Side light bulb, right |
| M7 | Turn signal bulb, front right |
| M31 | Dipped beam bulb, right |
| M32 | Main beam bulb, right |
| T8b | 8-pin connector, at illumination regulator and headlight range control adjuster |
| T10d | 10-pin connector, at right headlight |
| T11a | 11-pin connector, on the onboard power supply control unit (black) |
| T11b | 11-pin connector, on the onboard power supply control unit (brown) |
| T12c | 12-pin connector, on the onboard power supply control unit (black) |
| V49 | Headlight range control motor, right |
| 124 | Earth connection, in engine compartment right wiring harness |
| 369 | Earth connection -4-, in interior wiring harness |
| A19 | Connection (58d), in dash panel wiring harness |
| B277 | Positive connection -1- (15a), in interior wiring harness |
| B455 | Connection (headlight range control), in interior wiring harness |
| ** | not valid for vehicles with gas discharge lamp |
| M4 | Tail light bulb, left |
| M6 | Turn signal bulb, rear left |
| M16 | Reversing light bulb, left |
| M21 | Tail and brake light bulb, left |
| M41 | Tail and rear fog light bulb, left |
| T6b | 6-pin connector, on left tail light |
| T12a | 12-pin connector, on the onboard power supply control unit (black) |
| T12b | 12-pin connector, on the onboard power supply control unit (brown) |
| 50 | Earth point, in luggage compartment, left |
| 370 | Earth connection -5-, in interior wiring harness |
| A87 | Connection (reversing lights), in dash panel wiring harness |
| B144 | Positive connection (58L), in interior wiring harness |
| M2 | Tail light bulb, right |
| M8 | Turn signal bulb, rear right |
| M17 | Reversing light bulb, right |
| M22 | Tail and brake light bulb, right |
| M42 | Tail and rear fog light bulb, right |
| T6c | 6-pin connector, on right tail light |
| T12a | 12-pin connector, on the onboard power supply control unit (black) |
| T12b | 12-pin connector, on the onboard power supply control unit (brown) |
| 371 | Earth connection -6-, in interior wiring harness |
| B143 | Positive connection (58R), in interior wiring harness |
| M4 | Tail light bulb, left |
| M6 | Turn signal bulb, rear left |
| M16 | Reversing light bulb, left |
| M21 | Tail and brake light bulb, left |
| M41 | Tail and rear fog light bulb, left |
| T6b | 6-pin connector, on left tail light |
| T12a | 12-pin connector, on the onboard power supply control unit (black) |
| T12b | 12-pin connector, on the onboard power supply control unit (brown) |
| 50 | Earth point, in luggage compartment, left |
| 370 | Earth connection -5-, in interior wiring harness |
| A87 | Connection (reversing lights), in dash panel wiring harness |
| B144 | Positive connection (58L), in interior wiring harness |
| M2 | Tail light bulb, right |
| M8 | Turn signal bulb, rear right |
| M17 | Reversing light bulb, right |
| M22 | Tail and brake light bulb, right |
| M42 | Tail and rear fog light bulb, right |
| T6c | 6-pin connector, on right tail light |
| T12a | 12-pin connector, on the onboard power supply control unit (black) |
| T12b | 12-pin connector, on the onboard power supply control unit (brown) |
| 371 | Earth connection -6-, in interior wiring harness |
| B143 | Positive connection (58R), in interior wiring harness |
| E230 | Heated rear window button |
| J9 | Heated rear window relay, on the onboard power supply control unit |
| M25 | High level brake light bulbs |
| T5a | 5-pin connector, on left C-pillar (pink) |
| T5b | 5-pin connector, in the rear lid (black) |
| T5c | 5-pin connector, on left C-pillar (black) |
| T5d | 5-pin connector, in the rear lid (brown) |
| T10a | 10-pin connector, on the onboard power supply control unit (black) |
| T12b | 12-pin connector, on the onboard power supply control unit (brown) |
| T12c | 12-pin connector, on the onboard power supply control unit (black) |
| T20b | 20-pin connector, on the heating and fresh air control |
| X | Number plate light |
| Z1 | Heated rear window |
| 50 | Earth point, in luggage compartment, left |
| 98 | Earth connection, in rear lid wiring harness |
| 218 | Earth connection, in rear lid communication cord |
| 676 | Earth point -2-, in luggage compartment, left |
| W11 | Positive connection (58), in rear lid wiring harness |
| * | only on vehicles with heating |
| ** | only for tailgate vehicles |
| *** | only for Combi vehicles |
| E229 | Hazard warning lights button |
| F | Brake light switch |
| F4 | Reversing light switch |
| F47 | Brake pedal switch |
| J... | Engine control units |
| K6 | Hazard warning light system warning lamp |
| L76 | Light switch illumination bulb |
| SB7 | Fuse -7-, in the E box |
| T2e | 2-pin connector, at reversing light switch |
| T4c | 4-pin connector, at brake pedal switch |
| T6d | 6-pin connector, at hazard warning lights button |
| T8a | 8-pin connector, on the onboard power supply control unit (black) |
| T12c | 12-pin connector, on the onboard power supply control unit (black) |
| T12d | 12-pin connector, in plenum chamber (blue) |
| T12e | 12-pin connector, in plenum chamber (green) |
| T16a | 16-pin connector, on the onboard power supply control unit (black) |
| 368 | Earth connection -3-, in interior wiring harness |
| A18 | Connection (54), in dash panel wiring harness |
| B350 | Positive connection -1- (87a), in interior wiring harness |
| * | not valid for vehicles with automatic gearbox Gearbox |
| J317 | Terminal 30 voltage supply relay, on the onboard power supply control unit |
| T3b | 3-pin connector, on the bulb of the front interior light |
| T3c | 3-pin connector, at the rear centre reading light |
| T10a | 10-pin connector, on the onboard power supply control unit (black) |
| T12a | 12-pin connector, on the onboard power supply control unit (black) |
| W1 | Front interior light |
| W13 | Front passenger reading light |
| W19 | Reading lamp, driver side |
| W44 | Rear centre reading light |
| 367 | Earth connection -2-, in interior wiring harness |
| 368 | Earth connection -3-, in interior wiring harness |
| 370 | Earth connection -5-, in interior wiring harness |
| B111 | Positive connection (30al), in interior wiring harness |
| B129 | Connection (31, interior light/door contact switch), in interior wiring harness |
| * | only on vehicles with optional equipment |
| ** | only on vehicles without optional equipment |
| only on vehicles without head airbag |
| only on vehicles with head airbag |
| F5 | Luggage compartment light switch, in rear hinged lock |
| F218 | Central locking switch, in rear hinged lock |
| J393 | Convenience electric central control unit, behind right dash panel |
| T4d | 4-pin connector, at rear hinged lock |
| T5c | 5-pin connector, on left C-pillar (black) |
| T5d | 5-pin connector, in the rear lid (brown) |
| T18a | 18-pin connector, on the convenience electric central control unit (brown) |
| W6 | Glove box light |
| W18 | Luggage compartment light, left |
| W35 | Luggage compartment light |
| 98 | Earth connection, in rear lid wiring harness |
| 368 | Earth connection -3-, in interior wiring harness |
| B111 | Positive connection (30al), in interior wiring harness |
| B128 | Connection (31, luggage compartment light), in interior wiring harness |
| * | only on vehicles with optional equipment |
| L15 | Front ashtray light bulb |
| L42 | Socket light bulb |
| L50 | Rear centre ashtray light bulb |
| T3d | 3-pin connector, on the socket |
| T3e | 3-pin connector, on the socket in luggage compartment, right |
| U | Socket |
| U1 | Cigarette lighter |
| U5 | 12 V - Socket in luggage compartment, right |
| 366 | Earth connection -1-, in interior wiring harness |
| 381 | Earth connection -16-, in interior wiring harness |
| A116 | Connection -2- (58d), in dash panel wiring harness |
| * | only for Combi |
| ** | only on vehicles with optional equipment |
| H2 | High tone horn |
| H7 | Low tone horn |
| J4 | Horn relay, on the onboard power supply control unit |
| T6a | 6-pin connector, on the onboard power supply control unit (black) |
| T11a | 11-pin connector, on the onboard power supply control unit (black) |
| T11b | 11-pin connector, on the onboard power supply control unit (brown) |
| 44 | Earth point -1-, on lower part of left A-pillar |
| 372 | Earth connection -7-, in interior wiring harness |
| 373 | Earth connection -8-, in interior wiring harness |
| A90 | Connection (horn), in dash panel wiring harness |
| * | only on vehicles with optional equipment |
| D2 | Immobilizer reading coil (at ignition starter switch) |
| F9 | Handbrake warning switch |
| F34 | Brake fluid level warning contact |
| J285 | Control unit in dash panel insert |
| J362 | Immobilizer control unit |
| K | Dash panel insert |
| K7 | Brake fluid level warning lamp and handbrake |
| K115 | Immobilizer warning lamp |
| T2f | 2-pin connector, at the immobilizer reading coil |
| T36a | 36-pin connector, at dash panel insert |
| 372 | Earth connection -7-, in interior wiring harness |
| 374 | Earth connection -9-, in interior wiring harness |
| 381 | Earth connection -16-, in interior wiring harness |
| B278 | Positive connection -2- (15a), in interior wiring harness |
| G17 | Ambient temperature sensor, under the front bumper |
| G32 | Coolant shortage indicator sender |
| G33 | Windscreen washer fluid level sender |
| J119 | Multi-function display |
| J285 | Control unit in dash panel insert |
| K | Dash panel insert |
| K28 | Coolant temperature and coolant shortage indicator warning lamp |
| K106 | Washer fluid low warning lamp |
| T36a | 36-pin connector, at dash panel insert |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| * | only on vehicles with optional equipment |
| ** | only on vehicles with multi-function display (MFD) |
| F266 | Bonnet contact switch |
| G34 | Brake lining/pad wear sender, front left |
| G266 | Oil level/oil temperature sender |
| J285 | Control unit in dash panel insert |
| K | Dash panel insert |
| K32 | Brake pad/lining warning lamp |
| K38 | Oil level warning lamp |
| T2g | 2-pin connector, at brake lining/pad wear sender, front left |
| T2h | 2-pin connector, at bonnet contact switch |
| T6j | 6-pin connector, on front left in engine compartment (black) |
| T8a | 8-pin connector, on the onboard power supply control unit (black) |
| T36a | 36-pin connector, at dash panel insert |
| 373 | Earth connection -8-, in interior wiring harness |
| 374 | Earth connection -9-, in interior wiring harness |
| * | only on vehicles with extended servicing intervals (ESI) |
| ** | only on vehicles with optional equipment |
| G5 | Rev. Counter |
| G21 | Speedometer |
| H3 | Buzzer/gong |
| J285 | Control unit in dash panel insert |
| J533 | Data bus diagnostic interface, below dash panel, centre |
| K | Dash panel insert |
| K169 | Selector lever lock warning lamp |
| K220 | Tyre pressure display warning lamp |
| T12d | 12-pin connector, in plenum chamber (blue) |
| T20c | 20-pin connector, at data bus diagnostic interface |
| T36a | 36-pin connector, at dash panel insert |
| Y4 | Odometer display |
| Y6 | Selector lever position indicator |
| A27 | Connection (speed signal), in dash panel wiring harness |
| B319 | Positive connection -5- (30a), in interior wiring harness |
| * | only on vehicles with automatic Gearbox |
| J533 | Data bus diagnostic interface, below dash panel, centre |
| T12c | 12-pin connector, on the onboard power supply control unit (black) |
| T20c | 20-pin connector, at data bus diagnostic interface |
| A178 | Connection (CAN H, infotainment), in dash panel insert wiring harness |
| A179 | Connection (CAN L, infotainment), in dash panel insert wiring harness |
| B383 | Connection -1- (CAN H, drive), in interior wiring harness |
| B390 | Connection -1- (CAN L, drive), in interior wiring harness |
| B397 | Connection -1- (CAN H, convenience), in interior wiring harness |
| B406 | Connection -1- (CAN L, convenience), in interior wiring harness |
| J533 | Data bus diagnostic interface, below dash panel, centre |
| T16b | 16-pin connector, for diagnostic connection, below dash panel, left |
| T20c | 20-pin connector, at data bus diagnostic interface |
| 44 | Earth point -1-, on lower part of left A-pillar |
| 367 | Earth connection -2-, in interior wiring harness |
| 375 | Earth connection -10-, in interior wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
English
