| A | Battery |
| B | Starter |
| D | Ignition/starter switch |
| J59 | X contact relief relay |
| S1 | Fuse in fuse holder |
| S134 | Fuse in fuse holder on the battery |
| T8c | 8-pin connector, at ignition/starter switch |
| 11 | Earth point, below the battery on the left |
| 14 | Earth point, on gearbox |
| 42 | Earth point, next to steering column |
| 80 | Earth connection, in wiring harness behind dash panel |
| 81 | Earth connection, in wiring harness behind dash panel |
| A2 | Positive connection (15), in wiring harness behind dash panel |
| A21 | Connection (86s), in wiring harness behind dash panel |
| A32 | Positive connection (30), in wiring harness behind dash panel, left |
| A33 | Connection (75), in wiring harness behind dash panel, left |
| A40 | Positive connection (30), in wiring harness behind dash panel, left |
| P1 | Positive connection (30), in fuse holder on the battery |
| *1 | only on vehicles with manual gearbox |
| only on vehicles with seat adjustment with memory function |
| E1 | Light switch |
| E23 | Fog light and rear fog light switch |
| L9 | Light switch light bulb |
| T17a | 17-pin connector, at light switch |
| 45 | Earth point, behind dash panel |
| 332 | Earth connection, in wiring harness behind dash panel |
| A4 | Positive connection (58b), in wiring harness behind dash panel |
| A32 | Positive connection (30), in wiring harness behind dash panel, left |
| A33 | Connection (75), in wiring harness behind dash panel, left |
| A43 | Connection (57L), in wiring harness behind dash panel |
| A44 | Connection (57R), in wiring harness behind dash panel |
| A47 | Connection (55), in wiring harness behind dash panel |
| E4 | Headlight dipper/flasher switch |
| L1 | Twin filament bulb/sealed beam insert, left |
| L2 | Twin filament bulb/sealed beam insert, right |
| M1 | Side light bulb, left |
| M3 | Side light bulb, right |
| T8m | 8-pin connector, at left headlight |
| T8n | 8-pin connector, at right headlight |
| T12a | 12-pin connector, at headlight dipper/flasher switch |
| 12a | Earth point -2-, below the battery on the left |
| 119 | Earth connection, in front left wiring harness |
| A9 | Connection (56b), in wiring harness behind dash panel, left |
| A32 | Positive connection (30), in wiring harness behind dash panel, left |
| A43 | Connection (57L), in wiring harness behind dash panel |
| A44 | Connection (57R), in wiring harness behind dash panel |
| A51 | Connection (56a), in wiring harness behind dash panel, left |
| A84 | Connection (58L), in wiring harness behind dash panel, left |
| A85 | Connection (58R), in wiring harness behind dash panel, left |
| B9 | Connection (56aR), in wiring harness behind dash panel, left |
| C28 | Connection (56b), in wiring harness behind dash panel, left |
| *1 | not valid for vehicles with bulb failure warning |
| E2 | Turn signal switch |
| E3 | Hazard warning light switch |
| E19 | Parking light switch |
| J2 | Hazard warning light relay |
| K6 | Hazard warning light system warning lamp |
| L35 | Hazard warning light switch bulb |
| M5 | Turn signal bulb, front left |
| M7 | Turn signal bulb, front right |
| M18 | Side turn signal bulb, left |
| M19 | Side turn signal bulb, right |
| T2j | 2-pin connector, on side turn signal, left |
| T2k | 2-pin connector, on side turn signal, right |
| T2l | 2-pin connector, at turn signal, front left |
| T2m | 2-pin connector, at turn signal, front right |
| T7a | 7-pin connector, at hazard warning light switch |
| T12a | 12-pin connector, at turn signal switch |
| 80 | Earth connection, in wiring harness behind dash panel |
| 119 | Earth connection, in front left wiring harness |
| A4 | Positive connection (58b), in wiring harness behind dash panel |
| A5 | Positive connection (right turn signal), in wiring harness behind dash panel, left |
| A6 | Positive connection (left turn signal), in wiring harness behind dash panel, left |
| A43 | Connection (57L), in wiring harness behind dash panel |
| A44 | Connection (57R), in wiring harness behind dash panel |
| F4 | Reversing light switch |
| L46 | Rear fog light bulb, left |
| M4 | Tail light bulb, left |
| M6 | Turn signal bulb, rear left |
| M9 | Brake light bulb, left |
| M16 | Reversing light bulb, left |
| T2e | 2-pin connector, at reversing light switch |
| T6b | 6-pin connector, at the left tail light |
| T10a | 10-pin connector, in plenum chamber (orange) |
| 59 | Earth point, near left tail light |
| 86 | Earth connection, in rear wiring harness |
| 196 | Earth connection, in the left tail light |
| A6 | Positive connection (left turn signal), in wiring harness behind dash panel, left |
| A18 | Connection (54), in wiring harness behind dash panel, left |
| A47 | Connection (55), in wiring harness behind dash panel |
| A84 | Connection (58L), in wiring harness behind dash panel, left |
| A87 | Connection (reversing lights), in wiring harness behind dash panel (only for vehicles with navigation system, parking aid or seat adjustment with memory function) |
| *1 | not valid for vehicles with trailer coupling with rear fog light deactivation |
| *2 | only on vehicles with manual gearbox |
| *3 | only for engine identification characters BCA, AEH, AKL, BFQ |
| *4 | not valid for vehicles with bulb failure warning |
| not valid for engine identification characters BCA, AEH, AKL, BFQ |
| J217 | Control unit for automatic gearbox |
| J492 | Four-wheel drive control unit |
| M2 | Tail light bulb, right |
| M8 | Turn signal bulb, rear right |
| M10 | Brake light bulb, right |
| M17 | Reversing light bulb, right |
| T6c | 6-pin connector, at the right tail light |
| 197 | Earth connection, in the right tail light |
| A5 | Positive connection (right turn signal), in wiring harness behind dash panel, left |
| A20 | Positive connection (15a), in wiring harness behind dash panel |
| A85 | Connection (58R), in wiring harness behind dash panel, left |
| B149 | Positive connection (15a), in wiring harness behind dash panel |
| *1 | only on vehicles with automatic gearbox |
| *2 | only on vehicles with manual gearbox |
| *3 | only for vehicles with four-wheel drive |
| *4 | not valid for vehicles with bulb failure warning |
| F5 | Luggage compartment light switch |
| T2d | 2-pin connector, at the number plate light (left) |
| T2e | 2-pin connector, at the number plate light (right) |
| T2f | 2-pin connector, at the luggage compartment light |
| T4c | 4-pin connector, at luggage compartment light switch |
| T5a | 5-pin connector, on left C-pillar (pink) |
| T5b | 5-pin connector, in the rear lid, left (brown) |
| T5c | 5-pin connector, in the rear lid, left (black) |
| T5p | 5-pin connector, in the rear lid, left (pink) |
| W18 | Luggage compartment light, left |
| W35 | Luggage compartment light, right |
| X | Number plate light |
| 50 | Earth point, in luggage compartment, left |
| 59 | Earth point, near left tail light |
| 98 | Earth connection, in rear lid wiring harness |
| 218 | Earth connection, in rear lid communication cord |
| B109 | Earth connection, in wiring harness, rear left (on tailgate vehicles only with central locking) |
| B113 | Positive connection (30a) in rear left wiring harness |
| W11 | Connection (58), in rear lid wiring harness |
| *1 | not valid for Combi |
| *2 | only on vehicles without central locking |
| *3 | only for vehicles with central locking |
| only for Combi |
| E15 | Heated rear window switch |
| K10 | Heated rear window warning lamp |
| L39 | Heated rear window switch bulb |
| T3y | 3-pin connector, on the 12 V socket -2-, in luggage compartment, left |
| T5b | 5-pin connector, in the rear lid, left (brown) |
| T5d | 5-pin connector, on left C-pillar (black) |
| T6h | 6-pin connector, at heated rear window switch |
| U18 | 12 V socket -2-, in luggage compartment, left |
| Z1 | Heated rear window |
| 59 | Earth point, near left tail light |
| 80 | Earth connection, in wiring harness behind dash panel |
| 98 | Earth connection, in rear lid wiring harness |
| 218 | Earth connection, in rear lid communication cord |
| A4 | Positive connection (58b), in wiring harness behind dash panel |
| A40 | Positive connection (30), in wiring harness behind dash panel, left |
| B156 | Positive connection (30a), in rear left wiring harness (only for Combi vehicles with trailer coupling) |
| Z1 | Positive connection, in wiring harness behind dash panel (only on vehicles with exterior mirror, heated and adjustable) |
| *1 | not valid for Combi |
| *2 | only on vehicles without central locking |
| only for Combi |
| F138 | Coil in steering wheel |
| H | Horn activation |
| H1 | Horn (vehicles without optional equipment) |
| H2 | High tone horn (vehicles with optional equipment) |
| H7 | Low tone horn (vehicles with optional equipment) |
| J4 | Horn relay |
| J665 | Dipped headlight control unit, on/off |
| T2a | 2-pin connector, at horn |
| T2p | 2-pin connector, at high tone horn |
| T2r | 2-pin connector, at low tone horn |
| T5f | 5-pin connector, at steering wheel |
| T5g | 5-pin connector, in the steering wheel |
| T12a | 12-pin connector, at headlight dipper/flasher switch |
| 81 | Earth connection, in wiring harness behind dash panel |
| A72 | Connection (71), in front left wiring harness (vehicles with optional equipment) |
| A90 | Connection (71, horn), in wiring harness behind dash panel, left (only for Taxi) |
| A168 | Positive connection -4- (30a), in wiring harness behind dash panel, left |
| E112a | Connection (71), at steering wheel (slip ring contact) |
| *1 | Vehicles without optional equipment |
| *2 | only on vehicles with airbag |
| *3 | only on vehicles without airbag |
| *4 | only for vehicles with Coming Home |
| Vehicles with optional equipment |
| not valid for vehicles with multi-function steering wheel |
| E22 | Intermittent wiper switch |
| E38 | Intermittent wiper control |
| J31 | Automatic intermittent wipe/wash relay |
| T2n | 2-pin connector, on the windscreen washer pump |
| T4n | 4-pin connector, at windscreen wiper motor |
| T6p | 6-pin connector, on the intermittent wiper switch |
| T8b | 8-pin connector, on the intermittent wiper switch |
| V | Windscreen wiper motor |
| V5 | Windscreen washer pump |
| 119 | Earth connection, in front left wiring harness |
| 332 | Earth connection, in wiring harness behind dash panel |
| A27 | Connection (speed signal), in wiring harness behind dash panel, left |
| A36 | Connection (53a), in wiring harness behind dash panel, left |
| A102 | Connection (windscreen wiper), in wiring harness behind dash panel |
| D64 | Connection (53c), in wiring harness behind dash panel |
| E22 | Intermittent wiper switch |
| E34 | Rear wiper switch |
| E38 | Intermittent wiper control |
| J31 | Automatic intermittent wipe/wash relay |
| T2n | 2-pin connector, on the windscreen and rear window washer pump |
| T4n | 4-pin connector, at windscreen wiper motor |
| T4y | 4-pin connector, at rear window wiper motor |
| T5a | 5-pin connector, on left C-pillar (pink) |
| T5c | 5-pin connector, in the rear lid, left (black) |
| T5p | 5-pin connector, in the rear lid, left (pink) |
| T6p | 6-pin connector, on the intermittent wiper switch |
| T8b | 8-pin connector, on the intermittent wiper switch |
| V | Windscreen wiper motor |
| V12 | Rear window wiper motor |
| V59 | Windscreen and rear window washer pump |
| 98 | Earth connection, in rear lid wiring harness |
| 119 | Earth connection, in front left wiring harness |
| 332 | Earth connection, in wiring harness behind dash panel |
| A27 | Connection (speed signal), in wiring harness behind dash panel, left |
| A36 | Connection (53a), in wiring harness behind dash panel, left |
| A102 | Connection (windscreen wiper), in wiring harness behind dash panel |
| D64 | Connection (53c), in wiring harness behind dash panel |
| *1 | only for tailgate |
| *2 | only for Combi |
| F2 | Door contact switch, front left |
| F3 | Door contact switch, front right |
| F10 | Rear left door contact switch |
| F11 | Rear right door contact switch |
| T3b | 3-pin connector, at door contact switch, front left |
| T3e | 3-pin connector, on the bulb of the interior light |
| T3f | 3-pin connector, at door contact switch, front right |
| T3g | 3-pin connector, at door contact switch, rear left |
| T3h | 3-pin connector, at door contact switch, rear right |
| T10b | 10-pin connector, on left A-pillar (black) |
| T10c | 10-pin connector, on right A-pillar (black) |
| T10d | 10-pin connector, on left B-pillar (black) |
| T10e | 10-pin connector, on right B-pillar (black) |
| W | Front interior light |
| W13 | Front passenger reading light |
| W19 | Reading lamp, driver side |
| 43 | Earth point, on right A-pillar |
| 44 | Earth point, on left A-pillar |
| 77 | Earth point, on left B-pillar |
| 78 | Earth point, on right B-pillar |
| 81 | Earth connection, in wiring harness behind dash panel |
| A13 | Connection (door contact switch), in wiring harness behind dash panel |
| A29 | Positive connection (30, interior light), in wiring harness behind dash panel |
| *1 | only on vehicles without optional equipment |
| *2 | only on vehicles with optional equipment |
| E20 | Switches and instruments light regulator |
| E102 | Headlight range control adjuster |
| L54 | Headlight range control/adjuster light bulb |
| T6d | 6-pin connector, at illumination regulator and headlight range control adjuster |
| T8m | 8-pin connector, at left headlight |
| T8n | 8-pin connector, at right headlight |
| V48 | Headlight range control motor, left |
| V49 | Headlight range control motor, right |
| 42 | Earth point, next to steering column |
| 101 | Earth connection, in wiring harness behind dash panel, left |
| A3 | Positive connection (58), in wiring harness behind dash panel |
| A4 | Positive connection (58b), in wiring harness behind dash panel |
| C28 | Connection (56b), in wiring harness behind dash panel, left |
| D96 | Connection (headlight beam control), in wiring harness behind dash panel |
| F | Brake light switch |
| L42 | Socket light bulb |
| L50 | Ashtray light bulb |
| M25 | Bulb for high level brake light |
| T2t | 2-pin connector, at the ashtray light bulb |
| T3d | 3-pin connector, on the socket |
| T4n | 4-pin connector, at brake pedal switch |
| T5d | 5-pin connector, on left C-pillar (black) |
| U | Socket |
| U1 | Cigarette lighter |
| 81 | Earth connection, in wiring harness behind dash panel |
| A4 | Positive connection (58b), in wiring harness behind dash panel |
| A18 | Connection (54), in wiring harness behind dash panel, left |
| *1 | not valid for Combi |
| *2 | only on vehicles without central locking |
| *3 | only on vehicles with optional equipment |
| *4 | only for vehicles with radio pre-installation |
| *5 | not valid for vehicles with bulb failure warning |
| *6 | not valid for vehicles with engine identification characters BCA, BFQ, AUM, ARX, AUQ, AZJ, vehicles with CCS as well as for vehicles with diesel engine |
| only for Combi |
| T2u | 2-pin connector, at the glove box light |
| T5a | 5-pin connector, on left C-pillar (pink) |
| T5c | 5-pin connector, in the rear lid, left (black) |
| T5p | 5-pin connector, in the rear lid, left (pink) |
| W6 | Glove box light |
| 80 | Earth connection, in wiring harness behind dash panel |
| A3 | Positive connection (58), in wiring harness behind dash panel |
| A12 | Positive connection (75a), in wiring harness behind dash panel |
| *1 | only on vehicles with rear window wiper |
| *2 | only on vehicles with gas discharge lamps |
| only for tailgate |
| only for Combi |
| E9 | Fresh air blower switch |
| E159 | Fresh air/air recirculating flap switch |
| F269 | Temperature flap position switch |
| J166 | Amplifier for illumination |
| L16 | Fresh air regulation light bulb |
| L44 | Seat heating adjuster illumination bulb |
| N24 | Fresh air blower series resistor with overheating fuse |
| T2g | 2-pin connector, at fresh air blower |
| T3a | 3-pin connector, on fresh air and air recirculation flap control motor |
| T4e | 4-pin connector, behind right dash panel (not valid for vehicles with air conditioning system or Climatronic) |
| T4f | 4-pin connector, at fresh air blower series resistor |
| T6d | 6-pin connector, at fresh air blower switch |
| T7b | 7-pin connector, at seat heating adjuster |
| T8a | 8-pin connector, on fresh air and air recirculation flap switch |
| V2 | Fresh air blower |
| V154 | Fresh air and recirculated air flap control motor |
| 43 | Earth point, on right A-pillar |
| 162 | Earth connection, in blower motor wiring harness |
| A4 | Positive connection (58b), in wiring harness behind dash panel |
| A20 | Positive connection (15a), in wiring harness behind dash panel |
| A52 | Positive connection (30), in wiring harness behind dash panel, left |
| L13 | Positive connection, in fresh air blower wiring harness |
| L73 | Positive connection (15a), in fresh air blower wiring harness |
| *1 | not valid for Combi |
| *2 | only for vehicles with seat heating |
| *3 | only for vehicles with central locking |
| *4 | only for engine identification characters BFQ |
| only for Combi |
| J218 | Combi-processor in dash panel insert |
| K | Dash panel insert |
| K1 | Main beam warning lamp |
| K13 | Rear fog light warning lamp |
| K17 | Fog light warning lamp |
| K18 | Trailer operation warning lamp |
| K60 | Dipped beam warning lamp |
| K65 | Left turn signal warning lamp |
| K94 | Right turn signal warning lamp |
| T32a | 32-pin connector, at dash panel insert (blue) |
| T32b | 32-pin connector, at dash panel insert (green) |
| 80 | Earth connection, in wiring harness behind dash panel |
| A5 | Positive connection (right turn signal), in wiring harness behind dash panel, left |
| A6 | Positive connection (left turn signal), in wiring harness behind dash panel, left |
| A47 | Connection (55), in wiring harness behind dash panel |
| A84 | Connection (58L), in wiring harness behind dash panel, left |
| A85 | Connection (58R), in wiring harness behind dash panel, left |
| B9 | Connection (56aR), in wiring harness behind dash panel, left |
| C28 | Connection (56b), in wiring harness behind dash panel, left |
| W29 | Connection (A bus), in wiring harness behind dash panel |
| W30 | Connection (B bus), in wiring harness behind dash panel |
| *1 | only for vehicles with central locking |
| C | Alternator |
| E24 | Belt switch - driver side |
| J218 | Combi-processor in dash panel insert |
| J343 | Left gas discharge (xenon) lamp control unit |
| J571 | Bulb failure control unit |
| K | Dash panel insert |
| K2 | Alternator warning lamp |
| K19 | Seat belt warning system warning lamp |
| K29 | Glow period warning lamp |
| K132 | Electronic power control fault lamp |
| K166 | Door open warning lamp |
| K170 | Bulb failure warning lamp |
| T2g | 2-pin connector, in the holder on the starter |
| T2w | 2-pin connector, under driver seat |
| T32a | 32-pin connector, at dash panel insert (blue) |
| T32b | 32-pin connector, at dash panel insert (green) |
| A2 | Positive connection (15), in wiring harness behind dash panel |
| A13 | Connection (door contact switch), in wiring harness behind dash panel |
| U2 | Positive connection (15), in wiring harness behind dash panel (only for vehicles with automatic gearbox, four-wheel drive or bulb failure warning) |
| *1 | only for engine identification characters AGR, ALH, ATD, AHF, ASV |
| *2 | only for engine identification characters BCA, BFQ, AUM, ARX, AUQ, AZJ |
| *3 | only on vehicles with optional equipment |
| *4 | only on vehicles with gas discharge lamps |
| *5 | only on vehicles with optional equipment |
| F266 | Bonnet contact switch |
| G33 | Windscreen washer fluid level sender |
| G34 | Brake lining/pad wear sender, front left |
| J218 | Combi-processor in dash panel insert |
| K | Dash panel insert |
| K32 | Brake pad/lining warning lamp |
| K47 | ABS warning lamp |
| K75 | Airbag warning lamp |
| K83 | Exhaust emissions warning lamp |
| K86 | TCS warning lamp |
| K106 | Washer fluid low warning lamp |
| K155 | ESP warning lamp |
| T2e | 2-pin connector, at brake lining/pad wear sender |
| T2g | 2-pin connector, at bonnet contact switch |
| T2o | 2-pin connector, at windscreen washer fluid level sender |
| T32b | 32-pin connector, at dash panel insert (green) |
| 110 | Earth connection, in wiring harness behind dash panel |
| 332 | Earth connection, in wiring harness behind dash panel |
| A121 | Connection (H bus), in wiring harness behind dash panel, left |
| A122 | Connection (L bus), in wiring harness behind dash panel, left |
| *1 | only on vehicles with TCS |
| *2 | only on vehicles with ESP |
| *3 | only for engine identification characters BCA, BFQ, AUM, ARX, AUQ, AZJ, AGR, ALH, AHF, ASV, ATD |
| *4 | only on vehicles with extended servicing intervals (ESI) |
| *5 | only on vehicles with optional equipment |
| not valid for vehicles with anti-theft alarm system |
| D2 | Immobilizer reading coil |
| G3 | Coolant temperature gauge |
| G21 | Speedometer |
| J110 | Central locking control unit |
| J218 | Combi-processor in dash panel insert |
| J293 | Radiator fan control unit |
| J362 | Immobilizer control unit |
| J393 | Convenience electric central control unit |
| J503 | Navigation system control unit |
| K | Dash panel insert |
| K115 | Immobilizer warning lamp |
| R | Radio |
| T2s | 2-pin connector, at the immobilizer reading coil |
| T14a | 14-pin connector, at radiator fan control unit |
| T15a | 15-pin connector, at central locking control unit / at convenience electric central control unit |
| T32a | 32-pin connector, at dash panel insert (blue) |
| T32b | 32-pin connector, at dash panel insert (green) |
| Y2 | Digital clock |
| Y4 | Odometer display |
| A49 | Connection -1-, in wiring harness behind dash panel |
| U4 | Positive connection (30), in wiring harness behind dash panel (only for vehicles with automatic gearbox or with ESP) |
| *1 | only for vehicles with navigation system |
| *2 | only on vehicles with air conditioning system, Climatronic or anti-theft alarm system |
| F9 | Handbrake warning switch |
| F34 | Brake fluid level warning contact |
| G32 | Coolant shortage indicator sender |
| H3 | Buzzer/gong |
| J218 | Combi-processor in dash panel insert |
| J533 | Data bus diagnostic interface |
| K | Dash panel insert |
| K14/33 | Warning lamp for handbrake/brake fluid level |
| K28 | Coolant temperature and coolant shortage indicator warning lamp |
| L10 | Dash panel insert light bulb |
| T2c | 2-pin connector, at handbrake warning switch |
| T2h | 2-pin connector, at coolant shortage indicator sender |
| T2i | 2-pin connector, at brake fluid level warning contact |
| T32a | 32-pin connector, at dash panel insert (blue) |
| T32b | 32-pin connector, at dash panel insert (green) |
| 81 | Earth connection, in wiring harness behind dash panel |
| 110 | Earth connection, in wiring harness behind dash panel |
| 119 | Earth connection, in front left wiring harness |
| A4 | Positive connection (58b), in wiring harness behind dash panel |
| A21 | Connection (86s), in wiring harness behind dash panel |
| A76 | Connection (diagnosis wire K), in wiring harness behind dash panel |
| A115 | Connection (handbrake warning switch), in wiring harness on the left A-pillar (only for vehicles with four-wheel drive) |
| J... | Engine control units |
| T8d | 8-pin connector, for radio or navigation system control unit (black) |
| T10t | 10-pin connector, in plenum chamber (white) |
| T16a | 16-pin connector, in glove compartment on the driver's side (diagnostic connection) |
| 45 | Earth point, behind dash panel |
| 80 | Earth connection, in wiring harness behind dash panel |
| A4 | Positive connection (58b), in wiring harness behind dash panel |
| A20 | Positive connection (15a), in wiring harness behind dash panel |
| A21 | Connection (86s), in wiring harness behind dash panel |
| A27 | Connection (speed signal), in wiring harness behind dash panel, left |
| A76 | Connection (diagnosis wire K), in wiring harness behind dash panel |
| *1 | only for engine identification characters APK, AEG |
| *4 | only for vehicles with radio pre-installation |
English
