| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J59 | X contact relief relay |
| S237 | Fuse in fuse holder |
| T1 | Single connector, right on engine block |
| T2 | 2-pin connector, right on engine block |
| T6n | 6-pin connector, red, on protective housing for control units, left in engine compartment |
| 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, yellow, 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 |
| 502 | Screw connection -1- (30a), on relay plate |
| A17 | Connection (61), in dash panel wiring harness |
| A52 | Positive connection -2- (30), in dash panel wiring harness |
| * | To April 1998 |
| ** | From May 1998 |
| N | Ignition coil 1, left on cylinder head |
| N122 | Final output stage, left on cylinder head |
| N128 | Ignition coil 2, left on cylinder head |
| N158 | Ignition coil 3, left on cylinder head |
| N163 | Ignition coil 4, left on cylinder head |
| N164 | Ignition coil 5, left on cylinder head |
| P | Spark plug connector |
| Q | Flame plug |
| T6 | 6-pin connector, brown, on output stage for ignition coils |
| T6a | 6-pin connector, black, on output stage for ignition coils |
| T6b | 6-pin connector, black, on ignition coil |
| T6n | 6-pin connector, red, 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 |
| 124 | Earth connection, in engine compartment right wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| * | To April 1998 |
| ** | From May 1998 |
| D | Ignition/starter switch |
| G70 | Air mass meter |
| J207 | Starter inhibitor relay |
| J220 | Motronic control unit, in protective housing for control units, left in engine compartment |
| S231 | Fuse in fuse holder |
| S232 | Fuse in fuse holder |
| T9 | 9-pin connector, on starter inhibitor relay |
| T10h | 10-pin connector, blue, on protective housing for control units, left in engine compartment |
| T80 | 80-pin connector, on Motronic control unit |
| 124 | Earth connection, in engine compartment right wiring harness |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| --- | For vehicles with automatic gearbox only |
| *** | For vehicles with manual gearbox only |
| G2 | Coolant temperature sender |
| G40 | Hall sender |
| G62 | Coolant temperature sender |
| J104 | ABS with EDL control unit |
| J217 | Automatic gearbox control unit |
| J220 | Motronic control unit, in protective housing for control units, left in engine compartment |
| T10b | 10-pin connector, black, 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 |
| T10h | 10-pin connector, blue, on protective housing for control units, left in engine compartment |
| T15b | 15-pin connector, red, on protective housing for control units, left in engine compartment |
| T31 | 31-pin connector, on ABS with EDL control unit |
| T80 | 80-pin connector, on Motronic control unit |
| T88 | 88-pin connector, on automatic gearbox control unit |
| 220 | Earth connection (sender earth), in engine wiring harness |
| * | To April 1998 |
| ** | From May 1998 |
| F60 | Idling switch |
| G42 | Intake air temperature sender |
| G61 | Knock sensor I |
| G69 | Throttle valve potentiometer |
| G88 | Throttle valve positioner potentiometer |
| J220 | Motronic control unit, in protective housing for control units, left in engine compartment |
| J338 | Throttle valve control unit |
| T3a | 3-pin connector, green, left on bulkhead |
| T6n | 6-pin connector, red, on protective housing for control units, left in engine compartment |
| T8h | 8-pin connector, black, on throttle valve control unit |
| 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 (air conditioning system) |
| T15b | 15-pin connector, red, on protective housing for control units, left in engine compartment |
| T80 | 80-pin connector, on Motronic control unit |
| V60 | Throttle valve positioner |
| 15 | Earth point, on cylinder head |
| 501 | Screw connection -2- (30), on relay plate |
| D101 | Connection -1-, in engine compartment wiring harness |
| * | - To April 1998 |
| ** | - From May 1998 |
| F | Brake light switch |
| F47 | Cruise cont. sys. brake pedal switch |
| G28 | Engine speed sender |
| G66 | Knock sensor II |
| J220 | Motronic control unit, in protective housing for control units, left in engine compartment |
| S13 | Fuse in relay plate fuse box |
| T3b | 3-pin connector, grey, left on bulkhead |
| T3c | 3-pin connector, blue, left on bulkhead |
| T10g | 10-pin connector, white, on protective housing for control units, left in engine compartment |
| T80 | 80-pin connector, on Motronic control unit |
| 12 | Earth point, in engine compartment, left |
| 124 | Earth connection, in engine compartment right wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| A89 | Connection (brake light switch), in dash panel wiring harness |
| A130 | Connection (CCS), in dash panel wiring harness |
| * | To April 1998 |
| ** | From May 1998 |
| --- | For vehicles with automatic gearbox 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) |
| F36 | Clutch pedal switch, for CCS only |
| J217 | Automatic gearbox control unit |
| J220 | Motronic control unit |
| T10 | 10-pin connector, black, right next to steering column |
| 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, yellow, on protective housing for control units, left in engine compartment |
| T10g | 10-pin connector, white, on protective housing for control units, left in engine compartment |
| T10m | 10-pin connector, brown, right A-pillar coupling station (automatic gearbox connection) |
| T15a | 15-pin connector, white, on protective housing for control units, left in engine compartment |
| T15c | 15-pin connector, brown, right A-pillar coupling station (automatic gearbox connection) |
| T80 | 80-pin connector |
| T88 | 88-pin connector, on automatic gearbox control unit (5 speed automatic) |
| A130 | Connection (CCS), in dash panel wiring harness |
| * | To April 1998 |
| ** | From May 1998 |
| *** | For vehicles with manual gearbox only |
| --- | - For vehicles with automatic gearbox only |
| J17 | Fuel pump relay (208) |
| J220 | Motronic control unit, in protective housing for control units, left in engine compartment |
| N30 | Injector, cylinder 1 |
| N31 | Injector, cylinder 2 |
| N32 | Injector, cylinder 3 |
| N33 | Injector, cylinder 4 |
| N83 | Injector, cylinder 5 |
| S234 | Fuse in fuse holder |
| T8f | 8-pin connector |
| 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 |
| T80 | 80-pin connector, on Motronic control unit |
| 504 | Screw connection -1- (87F), on relay plate |
| A86 | Connection (50a), in dash panel wiring harness |
| E7 | Positive connection (87a), in Motronic wiring harness |
| * | To April 1998 |
| ** | From May 1998 |
| G39 | Lambda probe |
| J220 | Motronic control unit, in protective housing for control units, left in engine compartment |
| J299 | Secondary air pump relay (373), on protective housing for control units, left in engine compartment |
| N80 | Activated charcoal filter system solenoid valve I (pulsed) |
| N112 | Secondary air inlet valve |
| N156 | Intake manifold change-over valve |
| S130 | Secondary air pump fuse, in protective housing for control units, left in engine compartment |
| T4 | 4-pin connector, brown |
| T80 | 80-pin connector, on Motronic control unit |
| V101 | Secondary air pump motor |
| 124 | Earth connection, in engine compartment right wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| J220 | Motronic control unit, in protective housing for control units, left in engine compartment |
| J155 | Coolant pump control unit (181), in protective housing for control units, left in engine compartment |
| S78 | Coolant pump fuse, in protective housing for control units, left in engine compartment |
| S229 | Fuse in fuse holder |
| T8g | 8-pin connector, on coolant pump control unit |
| T6n | 6-pin connector, red, on protective housing for control units, left in engine compartment |
| 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 |
| T80 | 80-pin connector, on Motronic control unit |
| V50 | Coolant circulation pump |
| 124 | Earth connection, in engine compartment right wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A42 | Connection (fuel gauge), in dash panel wiring harness |
| A45 | Connection (engine speed signal), in dash panel wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| F1 | Oil pressure switch |
| G | Fuel gauge sender |
| G6 | Fuel pump (pre-supply pump) |
| G22 | Speedometer sender, reed contact sender left in gearbox |
| G32 | Coolant shortage indicator sender |
| S228 | Fuse in fuse holder |
| T3d | 3-pin connector, front left in engine compartment |
| T6c | 6-pin connector, blue, left A-pillar coupling station |
| T10a | 10-pin connector, brown, left A-pillar coupling station |
| 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 |
| 124 | Earth connection, in engine compartment right wiring harness |
| 197 | Earth connection -4-, in rear wiring harness |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| * | To April 1998 |
| ** | From May 1998 |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| H11 | Oil pressure warning buzzer |
| J285 | Control unit with display in dash panel insert |
| L75 | Digital display illumination |
| K2 | Alternator warning lamp |
| K3 | Oil pressure warning lamp |
| K28 | Coolant temperature/coolant shortage warning lamp |
| T32a | 32-pin connector, blue, on dash panel insert |
| T32b | 32-pin connector, green, on dash panel insert |
| Y4 | Odometer display |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A42 | Connection (fuel gauge), in dash panel wiring harness |
| A45 | Connection (engine speed signal), in dash panel wiring harness |
| * | To April 1998 |
| ** | From May 1998 |