A | Battery |
B | Starter |
C | Alternator |
C1 | Voltage regulator |
D | Ignition/starter switch |
T1a | 1-pin connector, at starter |
T1c | 1-pin connector, for starter, in the holder on the gearbox |
T2x | 2-pin connector, at alternator |
T8a | 8-pin connector, at ignition/starter switch |
T10g | 10-pin connector, in plenum chamber (black) |
T10k | 10-pin connector, in plenum chamber (brown) |
1 | Earth strap, battery body |
3 | Earth strap, engine - body |
13 | Earth point, on right in engine compartment |
D97 | Connection (50), in engine compartment wiring harness |
* | not valid for vehicles with automatic gearbox |
D | Ignition/starter switch |
J248 | Diesel direct injection system control unit |
N79 | Heating resistor for crankcase ventilation |
T2g | 2-pin connector, at heating resistor for crankcase ventilation |
T10g | 10-pin connector, in plenum chamber (black) |
T10m | 10-pin connector, in plenum chamber (orange) |
T94a | 94-pin connector, at engine control unit |
28 | Earth point, at the front wall, left |
85 | Earth connection, in engine compartment wiring harness |
A2 | Positive connection (15), in dash panel wiring harness |
E30 | Connection (87a), in engine wiring harness |
| Optional equipement |
J248 | Diesel direct injection system control unit |
J322 | Diesel direct injection system relay |
N75 | Charge pressure control solenoid valve |
S131 | Fuse 1, at relay holder in plenum chamber |
T2z | 2-pin connector, at charge pressure control solenoid valve |
T3d | 3-pin connector, in plenum chamber (red) |
T3l | 3-pin connector, in plenum chamber (white) |
T10m | 10-pin connector, in plenum chamber (orange) |
T60a | 60-pin connector, at engine control unit |
T94a | 94-pin connector, at engine control unit |
A52 | Positive connection -2- (30), in dash panel wiring harness |
D50 | Positive connection (30), in engine compartment wiring harness |
E30 | Connection (87a), in engine wiring harness |
F25 | Connection (87), in engine wiring harness |
G212 | Exhaust gas recirculation potentiometer |
J248 | Diesel direct injection system control unit |
N18 | Exhaust gas recirculation valve |
T4w | 4-pin connector, at intake manifold flap motor |
T6a | 6-pin connector, on exhaust gas recirculation control motor |
T60a | 60-pin connector, at engine control unit |
V157 | Intake manifold flap motor |
V338 | Exhaust gas recirculation control motor |
85 | Earth connection, in engine compartment wiring harness |
E30 | Connection (87a), in engine wiring harness |
F38 | Ambient temperature switch |
G28 | Engine speed sender |
G40 | Hall sender |
J248 | Diesel direct injection system control unit |
J255 | Climatronic control unit |
T3j | 3-pin connector, at engine speed sender (grey), at the front wall, left |
T3r | 3-pin connector, at Hall sender (black), at the front wall, left |
T12d | 12-pin connector, at climatronic control unit (black) |
T15b | 15-pin connector, in plenum chamber (red) |
T60a | 60-pin connector, at engine control unit |
T94a | 94-pin connector, at engine control unit |
E30 | Connection (87a), in engine wiring harness |
* | only on vehicles with air conditioning system |
** | only on vehicles with Climatronic |
F | Brake light switch |
F36 | Clutch pedal switch |
F47 | Brake pedal switch |
J104 | ABS control unit with EDL and TCS/ESP |
J248 | Diesel direct injection system control unit |
SB13 | Fuse, in fuse holder |
T4b | 4-pin connector, at brake pedal switch |
T4t | 4-pin connector, at clutch pedal switch |
T10m | 10-pin connector, in plenum chamber (orange) |
T15a | 15-pin connector, in plenum chamber (white) |
T15b | 15-pin connector, in plenum chamber (red) |
T42a | 42-pin connector, at ABL control unit with EDS and TCS/ESP |
T94a | 94-pin connector, at engine control unit |
A18 | Connection (54), in dash panel wiring harness |
A121 | Connection (CAN H), in dash panel wiring harness |
A122 | Connection (CAN L), in dash panel wiring harness |
A154 | Connection (brake pedal switch), in dash panel wiring harness |
A193 | Connection (87a), in dash panel wiring harness |
* | only on vehicles with ESP |
** | not valid for vehicles with automatic gearbox |
E45 | Cruise control system switch |
E227 | Cruise control system (CCS) button (Set) |
J248 | Diesel direct injection system control unit |
J255 | Climatronic control unit |
J314 | Air conditioning system control unit |
J397 | Radiator fan run-on relay |
T10m | 10-pin connector, in plenum chamber (orange) |
T10n | 10-pin connector, at CCS switch |
T15a | 15-pin connector, in plenum chamber (white) |
T15b | 15-pin connector, in plenum chamber (red) |
T15d | 15-pin connector, on left A-pillar (grey) |
T16e | 16-pin connector, at climatronic control unit (brown) |
T94a | 94-pin connector, at engine control unit |
A130 | Connection (cruise control), in dash panel wiring harness |
A193 | Connection (87a), in dash panel wiring harness |
* | only on vehicles with air conditioning system |
** | only on vehicles with Climatronic |
| only on vehicles with CCS |
F268 | Additional heating heater element contact switch (PTC) |
G71 | Intake manifold pressure sender |
G72 | Intake manifold temperature sender |
J248 | Diesel direct injection system control unit |
J359 | Low heat output relay |
J360 | High heat output relay |
N240 | Unit injector valve, cylinder 1 |
N241 | Unit injector valve, cylinder 2 |
N242 | Unit injector valve, cylinder 3 |
N243 | Unit injector valve, cylinder 4 |
T4k | 4-pin connector, at intake manifold pressure sender and intake manifold temperature sender |
T8e | 8-pin connector, at cylinder head |
T15b | 15-pin connector, in plenum chamber (red) |
T60a | 60-pin connector, at engine control unit |
T94a | 94-pin connector, at engine control unit |
F26 | Connection (earth), in cylinder head wiring harness |
F28 | Connection (earth), in engine wiring harness |
* | only on vehicles with additional heater (PTC) |
| not valid for vehicles with Climatronic |
F4 | Reversing light switch |
F8 | Kick-down switch |
F60 | Idling switch |
G70 | Air mass meter |
G79 | Accelerator pedal position sender |
J248 | Diesel direct injection system control unit |
SB31 | Fuse, in fuse holder |
T5d | 5-pin connector, at air mass meter |
T6l | 6-pin connector, at accelerator pedal position sender |
T10k | 10-pin connector, in plenum chamber (brown) |
T15a | 15-pin connector, in plenum chamber (white) |
T60a | 60-pin connector, at engine control unit |
T94a | 94-pin connector, at engine control unit |
A70 | Positive connection (15a, fuse 31), in dash panel wiring harness |
D136 | Positive connection -2- (15a), in engine compartment wiring harness |
* | not valid for vehicles with automatic gearbox |
G450 | Exhaust gas pressure sensor -1-, at the front wall, left |
G506 | Temperature sender upstream particle filter |
G507 | Temperature sender upstream turbocharger |
J248 | Diesel direct injection system control unit |
T2y | 2-pin connector, at temperature sender upstream particle filter (brown), at the front wall, left |
T2z | 2-pin connector, at temperature sender upstream turbocharger (black), at the front wall, left |
T3y | 3-pin connector, at exhaust gas pressure sensor -1- |
T94a | 94-pin connector, at engine control unit |
G504 | Sender for empty fuel additive |
J248 | Diesel direct injection system control unit |
T4y | 4-pin connector, at additive container for particle filter |
T6c | 6-pin connector, on right A-pillar (brown) |
T10k | 10-pin connector, in plenum chamber (brown) |
T15b | 15-pin connector, in plenum chamber (red) |
T94a | 94-pin connector, at engine control unit |
V135 | Additive particle filter pump |
A193 | Connection (87a), in dash panel wiring harness |
G81 | Fuel temperature sender |
J17 | Fuel pump relay |
J248 | Diesel direct injection system control unit |
T2n | 2-pin connector, at fuel temperature sender |
T10k | 10-pin connector, in plenum chamber (brown) |
T10m | 10-pin connector, in plenum chamber (orange) |
T16a | 16-pin connector, under the glove compartment on the driver's side (diagnostic connection) |
T60a | 60-pin connector, at engine control unit |
T94a | 94-pin connector, at engine control unit |
A27 | Connection (speed signal), in dash panel wiring harness |
A76 | Connection (diagnosis wire K), in dash panel wiring harness |
A100 | Connection -2- (87), in dash panel wiring harness |
G | Fuel gauge sender |
G1 | Fuel gauge |
G2 | Coolant temperature gauge sender |
G3 | Coolant temperature gauge |
G5 | Rev. Counter |
G6 | Fuel pump |
G62 | Coolant temperature sender |
J285 | Control unit in dash panel insert |
K | Dash panel insert |
K16 | Reserve fuel warning lamp |
K28 | Coolant temperature and coolant shortage indicator warning lamp |
T4h | 4-pin connector, at coolant temperature sender |
T4l | 4-pin connector, on the fuel pump |
T6e | 6-pin connector, on left A-pillar (blue) |
T10e | 10-pin connector, on left A-pillar (brown) |
T10g | 10-pin connector, in plenum chamber (black) |
T32a | 32-pin connector, at dash panel insert (blue) |
T32b | 32-pin connector, at dash panel insert (green) |
87 | Earth connection -2-, in rear wiring harness |
269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
316 | Earth connection (sender earth) -2-, in engine wiring harness |
A27 | Connection (speed signal), in dash panel wiring harness |
F1 | Oil pressure switch |
G21 | Speedometer |
G266 | Oil level/oil temperature sender |
J285 | Control unit in dash panel insert |
K | Dash panel insert |
K2 | Alternator warning lamp |
K3 | Oil pressure warning lamp |
K29 | Glow period warning lamp |
K38 | Oil level warning lamp |
K83 | Exhaust emissions warning lamp |
K231 | Diesel particle filter warning light |
SB5 | Fuse, in fuse holder |
T1b | 1-pin connector, at oil pressure switch |
T3k | 3-pin connector, at oil level/oil temperature sender |
T10g | 10-pin connector, in plenum chamber (black) |
T10k | 10-pin connector, in plenum chamber (brown) |
T32a | 32-pin connector, at dash panel insert (blue) |
T32b | 32-pin connector, at dash panel insert (green) |
85 | Earth connection, in engine compartment wiring harness |
A17 | Connection (61), in dash panel wiring harness |
A20 | Positive connection (15a), in dash panel wiring harness |