| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| T10b | 10-pin connector, black, on protective housing for control units, in engine compartment, left |
| T10d | 10-pin connector, brown, on control unit protective housing, in engine compartment, left |
| 1 | Earth strap, battery body |
| 2 | Earth strap, gearbox - body |
| 500 | Screw connection -1- (30), on relay plate |
| 502 | Screw connection -1- (30), on relay plate |
| A17 | Connection (61), in dash panel wiring harness |
| A52 | Positive (+) connection (30), in dash panel wiring harness |
| * | For engine code ANB only |
| N | Ignition coil 1 |
| N122 | Final output stage for ignition coils |
| N128 | Ignition coil 2 |
| N158 | Ignition coil 3 |
| N163 | Ignition coil 4 |
| P | Spark plug connector |
| Q | Flame plug |
| S229 | Fuse in fuse holder |
| T4a | 4-pin connector, black, on output stage for ignition coils |
| T5 | 5-pin connector, black, on output stage for ignition coils |
| T10e | 10-pin connector, orange, on protective housing for control units, in engine compartment, left |
| 16 | Earth point, on cylinder head cover |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| G2 | Coolant temperature sender |
| G40 | Hall sender |
| G62 | Coolant temperature sender |
| G71 | Intake manifold pressure sender |
| G72 | Intake manifold temperature sender |
| J220 | Motronic control unit, in protective housing, in engine compartment, left |
| T4b | 4-pin connector, black, intake manifold temperature sender |
| T10b | 10-pin connector, black, on protective housing for control units, in engine compartment, left |
| T121 | 121-pin connector, on Motronic control unit |
| 12 | Earth point, in engine compartment, left |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| D102 | Connection -2-, in engine compartment wiring harness |
| D106 | Connection -4-, in engine compartment wiring harness |
| * | For engine code ANB only |
| G28 | Engine speed sender |
| G61 | Knock sensor I |
| G66 | Knock sensor II |
| J217 | Automatic gearbox control unit gearbox |
| J220 | Motronic control unit, in protective housing, in engine compartment, left |
| J255 | Climatronic control unit |
| J314 | Air conditioner cut-off control unit |
| T3a | 3-pin connector, green, left on bulkhead |
| T3b | 3-pin connector, grey, left on bulkhead |
| T3c | 3-pin connector, blue, left on bulkhead |
| T12 | 12-pin connector, on Climatronic control unit |
| T15s | 15-pin connector, red, on protective housing for control units, in engine compartment, left |
| T16b | 16-pin connector, on Climatronic control unit |
| T88 | 88-pin connector, on automatic gearbox control unit |
| T121 | 121-pin connector, on Motronic control unit |
| A64 | Connection (30, engine speed signal), in dash panel wiring harness |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| D102 | Connection -2-, in engine compartment wiring harness |
| --- | For vehicles with automatic gearbox only gearbox |
| G42 | Intake air temperature sender |
| G186 | Throttle valve drive (electric throttle operation) |
| G187 | Throttle valve drive angle sender -1- (electric throttle operation) |
| G188 | Throttle valve drive angle sender -2- (electric throttle operation) |
| J220 | Motronic control unit, in protective housing, in engine compartment, left |
| J338 | Throttle valve control unit |
| T6a | 6-pin connector, black, throttle valve control unit |
| T10b | 10-pin connector, black, on protective housing for control units, in engine compartment, left |
| T121 | 121-pin connector, on Motronic control unit |
| 220 | Earth connection (sender earth), in engine wiring harness |
| 501 | Screw connection -2- (30), on relay plate |
| D | Ignition/starter switch |
| J17 | Fuel pump relay (208) |
| J220 | Motronic control unit, in protective housing, in engine compartment, left |
| N30 | Injector, cylinder 1 |
| N31 | Injector, cylinder 2 |
| N32 | Injector, cylinder 3 |
| N33 | Injector, cylinder 4 |
| N75 | Charge pressure control solenoid valve |
| S231 | Fuse in fuse holder |
| S232 | Fuse in fuse holder |
| T10b | 10-pin connector, black, on protective housing for control units, in engine compartment, left |
| T10e | 10-pin connector, orange, on protective housing for control units, in engine compartment, left |
| T121 | 121-pin connector, on Motronic control unit |
| 504 | Screw connection -1- (87), on relay plate |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| A86 | Connection (50a), in dash panel wiring harness |
| D95 | Connection (injectors), in engine compartment wiring harness |
| --- | For vehicles with cruise control system only |
| G39 | Lambda probe |
| G70 | Air mass meter |
| J220 | Motronic control unit, in control unit protective housing |
| N80 | Activated charcoal filter system solenoid valve I (pulsed) |
| N249 | Turbocharger divert air valve |
| S234 | Fuse in fuse holder |
| T4 | 4-pin connector, black |
| T5a | 5-pin connector, black, on air mass meter |
| T10e | 10-pin connector, orange, on control unit protective housing, in engine compartment, left |
| T121 | 121-pin connector, on Motronic control unit |
| 241 | Earth connection -2-, engine earth in engine wiring harness |
| D107 | Connection -5-, in engine compartment wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| G130 | Lambda probe after catalyst |
| J220 | Motronic control unit, in control unit protective housing |
| J299 | Secondary air pump relay |
| N112 | Secondary air inlet valve |
| S130 | Secondary air pump fuse |
| T4c | 4-pin connector, black |
| T8 | 8-pin connector, brown |
| T10d | 10-pin connector, brown, on control unit protective housing, in engine compartment, left |
| T10e | 10-pin connector, orange, on control unit protective housing, in engine compartment, left |
| T121 | 121-pin connector, on Motronic control unit |
| V101 | Secondary air pump motor |
| 12 | Earth point, in engine compartment, left |
| 241 | Earth connection -2-, engine earth in engine wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| * | For engine code ANB 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 |
| J220 | Motronic control unit, in control unit protective housing |
| S13 | Fuse 13 in relay plate fuse box |
| T3s | 10-pin connector |
| T10 | 10-pin connector, black, next to steering column |
| T15a | 15-pin connector, white, on protective housing for control units, in left engine compartment |
| T121 | 121-pin connector, on Motronic control unit |
| A89 | Connection (brake light switch), in dash panel wiring harness 4 |
| A130 | Connection (TCS), in dash panel wiring harness |
| A154 | Connection (brake pedal switsch), in dash panel wiring harness |
| --- | For vehicles with cruise control system only |
| * | For vehicles with manuel gearbox only |
| G79 | Accelerator position sender |
| G185 | Accelerator pedal position sender -2- |
| J220 | Motronic control unit, in protective housing, in engine compartment, left |
| T6a | 6-pin connector, black |
| T6b | 6-pin connector, accelerator position sender |
| T10b | 10-pin connector, black, on protective housing for control units, in engine compartment, left |
| T10d | 10-pin connector, brown, on protective housing for control units, in engine compartment, left |
| T10e | 10-pin connector, yellow, on protective housing for control units, in engine compartment, left |
| T15a | 15-pin connector, white, on protective housing for control units, in left engine compartment |
| T15s | 15-pin connector, red, on protective housing, in engine compartment, left |
| T121 | 121-pin connector, on Motronic control unit |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A45 | Connection (engine speed signal), in dash panel wiring harness |
| A131 | Connection (fuel consumption signal), in dash panel wiring harness |
| A153 | Connection (EPC), in dash panel wiring harness |
| * | For engine code ANB only |
| 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 |
| T3e | 3pin connector, black |
| 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, in left 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 engine wiring harness |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| 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 |
| K132 | Electric throttle control fault 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 |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A45 | Connection (engine speed signal), in dash panel wiring harness |
| A131 | Connection (fuel consumption signal), in dash panel wiring harness |
| A153 | Connection (EPC), in dash panel wiring harness |