| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J59 | X contact relief relay |
| S10 | Fuse in fuse box/relay plate |
| S11 | Fuse in fuse box/relay plate |
| S163 | Fuse -2- (30), in fuse box/battery |
| S176 | Fuse -4- (30), in fuse box/battery |
| S177 | Fuse -5- (30), in fuse box/battery |
| S229 | Fuse in fuse box |
| S237 | Fuse in fuse box |
| T2k | 2-pin connector, on engine |
| T4l | 4-pin connector, on engine |
| T6l | 6-pin connector, brown, in protective housing for connectors, in plenum chamber, left |
| 500 | Screw connection -1- (30), on relay plate |
| 501 | Screw connection -2- (30), on relay plate |
| 502 | Screw connection -1- (30a), on relay plate |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| A41 | Positive (+) connection (50), in dash panel wiring harness |
| * | Only models with air conditioner |
| ** | Only models up to October 2001 |
| *** | Only models from November 2001 |
| J220 | Motronic control unit |
| G2 | Coolant temperature sender |
| G40 | Hall sender |
| G62 | Coolant temperature sender |
| N152 | Ignition transformer |
| P | Spark plug connector |
| Q | Spark plugs |
| T4r | 4-pin connector |
| T6l | 6-pin connector, brown, in protective housing for connectors, in plenum chamber, left |
| T14a | 14-pin connector, in cable channel left |
| T80 | 80-pin connector |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| A104 | Positive (+) connection -2- (15), in dash panel wiring harness |
| D78 | Positive (+) connection -1- (30a), in engine compartment wiring harness |
| D101 | Connection -1-, in engine compartment wiring harness |
| F60 | Idling switch |
| F88 | Power assisted steering pressure switch |
| G61 | Knock sensor |
| G69 | Throttle valve potentiometer |
| G88 | Throttle valve positioner potentiometer |
| J220 | Motronic control unit |
| J338 | Throttle valve control unit |
| V60 | Throttle valve positioner |
| T3e | 3-pin connector, near intake manifold |
| T8m | 8-pin connector |
| T10 | 10-pin connector, orange, in protective housing for connectors, in plenum chamber, left |
| T80 | 80-pin connector |
| 220 | Earth connection (sender earth), in engine wiring harness |
| * | Only models with multi-function display |
| E35 | AC switch |
| G28 | Engine revs sender (00513-2111) |
| G66 | Knock sensor 2 (00540-2144) |
| J220 | Motronic control unit |
| J217 | Automatic gearbox control unit |
| J255 | Climatronic control unit (01320) |
| J293 | Radiator fan control unit (00831) |
| T3d | 3-pin connector, near intake manifold |
| T3f | 3-pin connector, near intake manifold |
| T8l | 8-pin connector |
| T10 | 10-pin connector, orange, on connector protective housing, in plenum chamber, left side |
| T12e | 12-pin connector |
| T14 | 14-pin connector |
| T16b | 16-pin connector |
| T68 | 68-pin connector |
| T80 | 80-pin connector |
| 220 | Earth connection, (electronic earth), in engine wiring harness |
| 608 | Earth point, in plenum chamber, centre |
| * | Only vehicles with CCS |
| F36 | Clutch pedal switch (00650) |
| G39 | Lambda probe (00525-2342) |
| J104 | ABS with EDL control unit |
| J217 | Automatic gearbox control unit |
| J220 | Motronic control unit |
| N30 | Injector - cylinder 1 (01249-4411) |
| N31 | Injector - cylinder 2 (01250-4412) |
| N32 | Injector - cylinder 3 (01251-4413) |
| N33 | Injector - cylinder 4 (01252-4414) |
| S232 | Fuse in fuse box |
| Z19 | Lambda probe heater |
| T4p | 4-pin connector, in engine compartment, centre |
| T10d | 10-pin connector, green, on connector protective housing, in plenum chamber, left side |
| T14a | 14-pin connector, on wiring channel, left side |
| T16 | 16-pin connector, self-diagnosis |
| T25 | 25-pin connector |
| T47 | 47-pin connector |
| T68 | 68-pin connector |
| T80 | 80-pin connector |
| D95 | Connection (injectors) in engine compartment wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| * | Only vehicles with automatic gearbox |
| G70 | Air mass meter |
| J17 | Fuel pump relay |
| J220 | Motronic control unit |
| J234 | Airbag control unit |
| N80 | Activated charcoal filter system solenoid valve 1 (pulsed) |
| N156 | Intake manifold change-over valve |
| N205 | Inlet camshaft timing adjustment valve -1- |
| T6l | 6-pin connector, brown, in protective housing for connectors, in plenum chamber, left |
| T10 | 10-pin connector, orange, in protective housing for connectors, in plenum chamber, left |
| T75 | 75-pin connector, behind the centre console |
| T80 | 80-pin connector |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A125 | Connection (crash signal), in dash panel wiring harness |
| E29 | Connection, in engine wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| * | Wire W for self-diagnosis |
| ** | Only models up to October 2001 |
| G | Fuel gauge sender |
| G6 | Fuel pump (pre-supply pump) |
| G32 | Coolant shortage indicator sender |
| S228 | Fuse in fuse box |
| S234 | Fuse in fuse box |
| S243 | Fuse in fuse box |
| T6l | 6-pin connector, brown, in protective housing for connectors, in plenum chamber, left |
| T14a | 14-pin connector, in cable channel left |
| 81 | Earth connection -1-, in dash panel wiring harness |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| 504 | Screw connection -1- (87F), on relay plate |
| A99 | Connection -1- (87), in dash panel wiring harness |
| A100 | Connection -2- (87), in dash panel wiring harness |
| E29 | Connection, in engine wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| F1 | Oil pressure switch |
| G22 | Speedometer sender (01086)(Hall sender on gearbox) |
| H11 | Oil pressure warning buzzer |
| J285 | Control unit with display in dash panel insert (01317) |
| K2 | Alternator warning lamp |
| K3 | Oil pressure warning lamp (00755) |
| K28 | Coolant temperature/coolant shortage warning lamp |
| K83 | Exhaust emissions warning lamp |
| K132 | Electronic power control fault lamp |
| S7 | Fuse in relay plate/fuse box |
| T14a | 14-pin connector, in wire channel, left side |
| T32 | 32-pin connector, blue, in dash panel |
| T32a | 32-pin connector, green, in dash panel |
| 10 | Earth point, in plenum chamber |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| B163 | Positive connection -1- (15), in interior wiring harness |
| * | Self-diagnosis line W |
| E86 | Multi-function display call-up button |
| E109 | Multi-function display, memory switch |
| G1 | Fuel gauge (00664) |
| G3 | Coolant temperature gauge |
| G5 | Rev. counter (00662) |
| G21 | Speedometer (00663) |
| J119 | Multi-function display |
| J255 | Climatronic control unit (01320) |
| J285 | Control unit with display in dash panel insert (01317) |
| K105 | Reserve fuel warning lamp (01082) |
| T6d | 6-pin connector |
| T12d | 12-pin connector, in the Climatronic |
| T16b | 16-pin connector |
| T32 | 32-pin connector, blue, in dash panel |
| T32a | 32-pin connector, green, in dash panel |
| A13 | Connection (door contact switch), in dash panel wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| * | Only vehicles with M.F.I. |
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