| A | Battery (00532) |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J59 | X contact relief relay |
| SA1 | Fuse -1- in battery fuse box |
| SA2 | Fuse -2- in battery fuse box |
| SA4 | Fuse -4- in battery fuse box |
| SA5 | Fuse -5- in battery fuse box |
| TV2 | Terminal 30 junction box |
| T5f | 5-pin connector, black, in engine compartment |
| T6j | 6-pin connector, black, on relay carrier mount |
| T10d | 10-pin connector, black, on coupling station |
| T10i | 10-pin connector, red, on coupling station |
| 1 | Earth strap, battery body |
| 2 | Earth strap, gearbox body |
| 80 | Earth connection -1-, in instrument wiring harness |
| 500 | Bolted connection -1- (30), on relay plate |
| 501 | Bolted connection -2- (30), on relay plate |
| 502 | Bolted connection -1- (30a), on relay plate |
| A32 | Positive connection (30), in dash panel wiring harness |
| A61 | Positive connection (X), in dash panel wiring harness |
| A80 | Connection -1- (X), in dash panel wiring harness |
| J220 | Control unit for motronic |
| J234 | Control unit for Airbag (01321) |
| J491 | Control unit for fuel shut-off (Crash) |
| N70 | Ignition coil 1 with output stage |
| N127 | Ignition coil 2 with output stage |
| N291 | Ignition coil 3 with output stage |
| N292 | Ignition coil 4 with output stage |
| P | Spark plug connector |
| Q | Flame plug |
| SB1 | Fuse -1- on fuse holder |
| SB4 | Fuse -4- on fuse holder |
| T4r | 4 pin connector, black, the engine prewiring |
| T4s | 4 pin connector, black, the engine prewiring |
| T4t | 4 pin connector, black, the engine prewiring |
| T4u | 4 pin connector, black, the engine prewiring |
| T9a | 9 pin connector, black, on the relay holder bracket |
| T10h | 10 pin connector, purple, in the coupling distributor |
| T10i | 10 pin connector, red, in the coupling distributor |
| T28 | 28 pin connector, with the engine prewiring |
| T50 | 50 pin connector, yellow |
| T121 | 121 pin connector, black |
| 18 | Earth point, on cylinder block |
| 109 | Earth connection, in airbag wiring loom |
| 306 | Earth connection (ignition coils), in engine pre-wiring harness |
| A15 | Positive connection (15), in instrument wiring loom |
| A98 | Positive connection -4- (30), in dash panel wiring harness |
| A125 | Connection (crash signal), in dash panel wiring harness |
| D52 | Positive connection (15a), in engine compartment wiring loom |
| * | Only vehicles without airbag |
| ** | Only vehicles with airbag |
| G2 | Coolant temperature sender (01039) |
| G40 | Hall sender (00515-2113) |
| G62 | Sender for coolant temperature (00522-2312) |
| J220 | Control unit for motronic |
| T10f | 10 pin connector, brown, in the coupling distributor |
| T10g | 10 pin connector, green, in the coupling distributor |
| T14a | 14 pin connector, brown |
| T28 | 28 pin connector, with the engine prewiring |
| T121 | 121 pin connector, black |
| 10 | Earth point, in plenum chamber |
| 85 | Earth connection -1-, in engine compartment wiring loom |
| 110 | Earth connection -2-, in wiring loom for instruments |
| 167 | Earth connection -4-, in engine compartment wiring loom |
| 281 | Earth connection -1-, in engine prewiring wiring harness |
| F38 | Ambient temperature switch |
| G61 | Knock sensor I (00524-2142) |
| G66 | Knock sensor II (00540-2144) |
| G71 | Intake manifold pressure sender (00519-2222) |
| J220 | Control unit for motronic |
| J293 | Control unit for radiator fan (00831) |
| T3c | 3 pin connector, black, in the engine prewiring |
| T3g | 3 pin connector, black, in the engine prewiring |
| T5g | 5 pin connector, brown, on the connector unit |
| T10g | 10 pin connector, green, in the coupling distributor |
| T14b | 14 pin connector |
| T28 | 28 pin connector, with the engine prewiring |
| T121 | 121 pin connector, black |
| 221 | Earth connection (engine earth), in engine wiring loom |
| D61 | Connection (air conditioner), in engine compartment wiring loom |
| D114 | Connection -12- in engine compartment wiring loom |
| D133 | Connection (Hall sender signal), in engine compartment wiring loom |
| L5 | Connection -1-, in evaporator housing unit wiring loom |
| F88 | Power assisted steering/pressure switch (00557) |
| G28 | Engine speed sender (00513-2111) |
| G69 | Throttle valve potentiometer (00518-2212) |
| G88 | Throttle valve positioner - potentiometer (00530-2124) |
| V60 | Throttle valve positioner (00282-1232) |
| J104 | Control unit for ABS with EDS |
| J220 | Control unit for motronic |
| J338 | Throttle valve control unit (01165) |
| T3b | 3 pin connector |
| T5g | 5 pin connector, brown, on the connector unit |
| T10f | 10 pin connector, brown, in the coupling distributor |
| T14a | 14 pin connector, brown |
| T25 | 25 pin connector, black, on the left side of the engine housing |
| T28 | 28 pin connector, with the engine prewiring |
| T121 | 121 pin connector, black |
| 221 | Earth connection (engine earth), in engine wiring loom |
| A27 | Connection (speed signal), in dash panel wiring loom |
| G42 | Intake air temperature sender (00523-2322) |
| G79 | Accelerator position sender (00777-3131) |
| G185 | Accelerator pedal position sender 2 |
| J17 | Fuel pump relay (01259-4433) |
| J220 | Motronic control unit |
| N112 | Secondary air inlet valve (01235-4313) |
| T6e | 6-pin connector, black |
| T6f | 6-pin connector, black, on relay carrier mount |
| T10h | 10-pin connector, purple, on coupling station |
| T14a | 14-pin connector, brown |
| T121 | 121-pin connector, black |
| 201 | Earth connection -5-, in engine compartment wiring harness |
| A99 | Connection -1- (87), in dash panel wiring harness |
| G130 | Lambda probe after catalyst (00699) |
| J220 | Motronic control unit |
| J299 | Secondary air pump relay (01264-4311) |
| N30 | Injector-cylinder 1 (01249-4411) |
| N31 | Injector-cylinder 2 (01250-4412) |
| N32 | Injector-cylinder 3 (01251-4413) |
| N33 | Injector-cylinder 4 (01252-4414) |
| V101 | Secondary air pump motor |
| Z29 | Lambda probe heater 1, after catalyst |
| T4d | 4-pin connector, black, on exhaust pipe |
| T6h | 6-pin connector, black, on relay carrier mount |
| T10f | 10-pin connector, brown, on coupling station |
| T28 | 28-pin connector, with engine pre-wiring |
| T121 | 121-pin connector, black |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| D95 | Connection (injectors) in engine compartment wiring harness |
| D108 | Connection -6-, in engine compartment wiring harness |
| G39 | Lambda probe (00525-2342) |
| G70 | Air flow meter (00553-2324) |
| J220 | Motronic control unit |
| N75 | Charge pressure control solenoid valve (01262-4442) |
| N80 | Activated charcoal filter system solenoid valve 1 (01247-4343) (pulsed) |
| N249 | Turbocharger divert air valve |
| Z19 | Lambda probe heater |
| T4g | 4-pin connector |
| T10e | 10-pin connector, white, on coupling station |
| T10h | 10-pin connector, purple, on coupling station |
| T14a | 14-pin connector, brown |
| T28 | 28-pin connector, with engine pre-wiring |
| T121 | 121-pin connector, black |
| D142 | Connection, in engine compartment pre-wiring wiring harness |
| E32 | Connection (87), in Motronic wiring harness |
| F | Brake light switch (00526-2131) |
| F36 | Clutch pedal switch (00650) |
| F47 | Cruise cont. sys. brake pedal switch (diesel direct inj. system) (00629) |
| J... | Engine control units |
| J220 | Motronic control unit |
| M21 | Left brake light/tail light bulb |
| M22 | Right brake light/tail light bulb |
| M25 | High level brake light bulb |
| SB2 | Fuse -2- in fuse box |
| SB8 | Fuse -8- in fuse box |
| SB20 | Fuse -20- in fuse box |
| T10g | 10-pin connector, green, on coupling station |
| T10h | 10-pin connector, purple, on coupling station |
| T10i | 10-pin connector, red, on coupling station |
| T14a | 14-pin connector, brown |
| T121 | 121-pin connector, black |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| D73 | Positive connection (54), in engine compartment wiring harness |
| D106 | Connection -4-, in engine compartment wiring harness |
| D109 | Connection -7-, in engine compartment wiring harness |
| D113 | Connection -11-, in engine compartment wiring harness |
| D142 | Connection, in engine compartment pre-wiring wiring harness |
| E32 | Connection (87), in Motronic wiring harness |
| E45 | CCS switch (00671) |
| F1 | Oil pressure switch |
| G | Fuel gauge sender (00771-3113) |
| G6 | Fuel pump (pre-supply pump) |
| G22 | Speedometer sender (01086) |
| SB3 | Fuse -3- in fuse box |
| SB7 | Fuse -7- in fuse box |
| T6 | 6-pin connector, khaki-grey |
| T10f | 10-pin connector, brown, in coupling station |
| T10g | 10-pin connector, green, in coupling station |
| T10l | 10-pin connector, orange, in coupling station |
| T14a | 14-pin connector, brown |
| T28 | 28-pin connector, in engine pre-wiring |
| 10 | Earth point, on plenum chamber |
| 51 | Earth point, luggage compartment, to right |
| 57 | Earth point, rear pillar, to left |
| 110 | Earth connection -2-, in dash panel wiring harness |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| B163 | Positive connection -1- (15), in interior wiring harness |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| * | Only vehicles with CCS |
| G1 | Fuel gauge (00664) |
| G3 | Coolant temperature indicator |
| J285 | Control unit with warning lamps in dash panel insert (01317) |
| K3 | Oil pressure warning lamp (00755) |
| K28 | Coolant temperature/coolant shortage warning lamp |
| T10i | 10-pin connector, red, in coupling station |
| T32 | 32-pin connector, blue, in dash panel insert |
| T32a | 32-pin connector, green, in dash panel insert |
| Y4 | Mileometer |
| 110 | Earth connection -2-, in dash panel wiring harness |
| G21 | Speedometer (00663) |
| H11 | Oil pressure warning buzzer |
| J285 | Control unit with display unit in dash panel insert (01317) |
| K2 | Alternator warning lamp |
| L75 | Light for digital display |
| SB9 | Fuse -9- on fuse holder |
| T32 | 32 pin connector, blue, dashboard |
| T32a | 32 pin connector, green, dashboard |
| 44 | Earth point, A pillar left, bottom |
| 81 | Earth connection -1-, in dash panel wiring loom |
| A21 | Connection (86s), in dash panel wiring loom |
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