| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| T3v | 3-pin connector, black, right on engine block |
| T10b | 10-pin connector, black, on protective housing for control units, left in engine compartment |
| T10d | 10-pin connector, brown, on protective housing for control units, left in engine compartment |
| 1 | Earth strap, battery body |
| 2 | Earth strap, gearbox - body |
| 500 | Screw connection -1- (30), on relay plate |
| A17 | Connection (61), in dash panel wiring harness |
| A52 | Positive connection -2- (30), in dash panel wiring harness |
| J248 | Diesel direct injection system control unit, in protective housing for control units |
| J317 | Terminal 30 voltage supply relay, (219), in protective housing for control units |
| S102 | Engine control unit fuse, in protective housing for control units |
| S125 | Glow plugs fuse |
| S189 | Glow plugs fuse -2- |
| Q6 | Glow plugs - (engine) |
| T9 | 9-pin connector, on control unit for diesel direct injection system |
| T10e | 10-pin connector, orange, on protective housing for control units, left in engine compartment |
| T24 | 10-pin connector, on control unit for diesel direct injection system |
| 504 | Screw connection -1- (87F), on relay plate |
| A52 | Positive connection -2- (30), in dash panel wiring harness |
| F28 | Connection -3-, in diesel direct injection system wiring harness |
| F31 | Connection (glow plugs - engine), in diesel direct injection system wiring harness |
| F34 | Connection -2- (engine glow plugs), in diesel direct injection system wiring harness |
| F8 | Kick-down switch |
| F60 | Idling switch |
| G8 | Oil temperature sender |
| G79 | Accelerator position sender |
| J52 | Glow plug relay |
| J248 | Diesel direct injection system control unit, in protective housing for control units |
| T6a | 6-pin connector, on injection pump |
| T10b | 10-pin connector, black, on protective housing for control units, left in engine compartment |
| T10d | 10-pin connector, brown, on protective housing for control units, left in engine compartment |
| T10e | 10-pin connector, orange, on protective housing for control units, left in engine compartment |
| T15a | 15-pin connector, white, on protective housing for control units, left in engine compartment |
| T40 | 40-pin connector, on diesel direct injection system control unit |
| T52 | 52-pin connector, on diesel direct injection system control unit |
| A2 | Positive connection (30), in dash panel wiring harness |
| A10 | Connection (glow plug control), in dash panel wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| G28 | Engine speed sender |
| G71 | Intake manifold pressure sender |
| G72 | Intake manifold temperature sender |
| G80 | Needle lift sender |
| J248 | Diesel direct injection system control unit, in protective housing for control units |
| T2 | 2-pin connector, brown, near needle lift sender |
| T3 | 3-pin connector, black, near engine speed sender |
| T9 | 9-pin connector, on control unit for diesel direct injection system |
| T10b | 10-pin connector, black, on protective housing for control units, left in engine compartment |
| T10d | 10-pin connector, brown, on protective housing for control units, left in engine compartment |
| T40 | 40-pin connector, on diesel direct injection system control unit |
| T52 | 52-pin connector, on diesel direct injection system control unit |
| 12 | Earth point, in engine compartment, left |
| 32 | Earth point, behind dash panel, left |
| 81 | Earth Connection -1-, in dash panel wiring harness |
| 156 | Earth connection, in Diesel direct injection system wiring harness |
| A45 | Connection (engine speed signal), in dash panel wiring harness |
| * | For vehicles with manual gearbox only |
| ** | For vehicles with automatic gearbox only |
| G2 | Coolant temperature sender |
| G62 | Coolant temperature sender |
| J217 | Automatic gearbox control unit |
| J248 | Diesel direct injection system control unit, in protective housing for control units |
| J399 | Injection pump control unit |
| N144 | Electro/hydraulic engine mounting solenoid valve, left |
| N145 | Electro/hydraulic engine mounting solenoid valve, right |
| T9x | 9-pin connector |
| T10b | 10-pin connector, black, on protective housing for control units, left in engine compartment |
| T24 | 24-pin connector, on control unit for diesel direct injection system |
| T40 | 40-pin connector, on diesel direct injection system control unit |
| T52 | 52-pin connector, on diesel direct injection system control unit |
| T88 | 88-pin connector, on automatic gearbox control unit |
| 156 | Earth connection, in diesel direct injection system wiring harness |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| F25 | Connection -1-, in diesel direct injection system wiring harness |
| F26 | Connection -2-, in diesel direct injection system wiring harness |
| ** | For vehicles with automatic gearbox only |
| G70 | Air mass meter |
| J248 | Diesel direct injection system control unit, in protective housing for control units |
| N18 | Exhaust gas recirculation valve |
| N239 | Intake manifold flap change-over valve |
| N75 | Charge pressure control solenoid valve |
| T10d | 10-pin connector, brown, on protective housing for control units, left in engine compartment |
| T10e | 10-pin connector, orange, on protective housing for control units, left in engine compartment |
| T10k | 10-pin connector, grey, coupling station right A-pillar |
| T24 | 24-pin connector, on control unit for diesel direct injection system |
| T40 | 40-pin connector, on diesel direct injection system control unit |
| T52 | 52-pin connector, on diesel direct injection system control unit |
| A2 | Positive (+) connection (15a), in dash panel wiring harness |
| A15 | Positive connection (15), in instrument wiring harness |
| A131 | Connection (fuel consumption signal), in dash panel wiring harness |
| F25 | Connection -1-, in diesel direct injection system wiring harness |
| F35 | Connection -4-, in diesel direct injection system wiring harness |
| --- | For vehicles with cruise control system only |
| * | For vehicles with manual gearbox only |
| E45 | Cruise control system switch Position 0 = OFF in detent Position 1 = OFF with button Position 2 = ON Position 3 = RES |
| E227 | Cruise control system (CCS) button (Set) |
| F | Brake light switch |
| F36 | Clutch pedal switch |
| F47 | Cruise cont. sys. brake pedal switch (diesel direct inj. system) |
| J248 | Diesel direct injection system control unit, in protective housing for control units |
| S13 | Fuse in relay plate fuse box |
| T10 | 10-pin connector, black, next to steering column |
| T15a | 15-pin connector, white, on protective housing for control units, in left engine compartment |
| T40 | 40-pin connector, on diesel direct injection system control unit |
| A18 | Connection (54), in dash panel wiring harness |
| A89 | Connection -2- (54), in dash panel wiring harness |
| A130 | Connection (CCS), in dash panel wiring harness |
| --- | For vehicles with cruise control system only |
| * | For vehicles with manual gearbox only |
| G210 | Low fuel level sender |
| J248 | Diesel direct injection system control unit, in protective housing for control units |
| J255 | Climatronic control unit |
| T6m | 6-pin connector, black, coupling station right A-pillar |
| T9 | 9-pin connector, on control unit for diesel direct injection system |
| T10e | 10-pin connector, orange, on protective housing for control units, left in engine compartment |
| T15s | 15-pin connector, red, on protective housing for control units, left in engine compartment |
| T16b | 16-pin connector, on Climatronic control unit |
| T24 | 24-pin connector, on control unit for diesel direct injection system |
| T40 | 40-pin connector, on diesel direct injection system control unit |
| A70 | Connection (15a, fuse 231), in dash panel wiring harness |
| A105 | Connection -2- (rpm boost), in dash panel wiring harness |
| F36 | Connection (87a), in diesel direct injection system control unit |
| *** | For vehicles with four wheel drive only |
| **** | For vehicles without four wheel drive only |
| G | Fuel gauge sender |
| G6 | Fuel pump (pre-supply pump) |
| G169 | Fuel gauge sender -2- (four wheel drive only) |
| G237 | Fuel gauge sender -3- (four wheel drive only) |
| J17 | Fuel pump relay, on the 13 position relay carrier control number (214) |
| J442 | Alternator cut-in relay (370), on 8 position additional relay carrier |
| S228 | Fuse in fuse holder |
| T3s | 3-pin connector, red, on protective housing for control units, left in engine compartment |
| T4e | 4-pin connector |
| T6c | 6-pin connector, blue, coupling station left A-pillar |
| T10a | 10-pin connector, brown, coupling station left A-pillar |
| T10b | 10-pin connector, black, on protective housing for control units, left in engine compartment |
| T10e | 10-pin connector, yellow, on protective housing for control units, left in engine compartment |
| 75 | Earth point, rear pillar, right |
| 197 | Earth connection -4-, in rear wiring harness |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| 316 | Earth connection (sender earth -2-), in dash panel wiring harness |
| A100 | Connection -2- (87), in dash panel wiring harness |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G5 | Rev. counter |
| H11 | Oil pressure warning buzzer |
| J285 | Control unit with display in dash panel insert |
| K2 | Alternator warning lamp |
| K3 | Oil pressure warning lamp |
| K28 | Coolant temperature/coolant shortage warning lamp |
| K29 | Glow period warning lamp |
| K105 | Reserve fuel warning lamp |
| L75 | Digital display illumination |
| T32a | 32-pin connector, blue, on dash panel insert |
| T32b | 32-pin connector, green, on dash panel insert |
| Y4 | Odometer display |
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