| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J59 | X-contact relief relay |
| J226 | Starter inhibitor and reversing light relay |
| S162 | Fuse 1 (30), in fuse holder on battery |
| S163 | Fuse 2 (30), in fuse holder on battery |
| S176 | Fuse 4 (30), in fuse holder on battery |
| S177 | Fuse 5 (30), in fuse holder on battery |
| T2e | 2-pin connector, near starter (in models without air conditioning system) |
| T4 | 4-pin connector, near starter (in models with air conditioning system) |
| T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
| 500 | Screw connection 1 (30), on relay plate |
| 502 | Screw connection (30a), on relay plate |
| A41 | Positive connection (50), in dash panel wiring harness (up to April 2001) |
| * | only models with manual gearbox |
| --- | models with automatic gearbox only |
| -●-●- | up to April 2001 |
| D | Ignition/starter switch |
| J220 | Motronic control unit, in centre plenum chamber |
| S10 | Fuse 10 in fuse holder |
| S229 | Fuse 29 in fuse holder |
| S231 | Fuse 31 in fuse holder |
| S237 | Fuse 37 in fuse holder |
| T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
| T14a | 14-pin connector, near battery |
| T121 | 121-pin connector |
| 501 | Screw connection 2 (30), on relay plate |
| A2 | Positive connection (15), in dash panel wiring harness |
| A32 | Positive connection (30), in dash panel wiring harness |
| A98 | Positive connection 4 (30), in dash panel wiring harness |
| A104 | Positive connection 2 (15), in dash panel wiring harness |
| D78 | Positive connection 1 (30a), in engine compartment wiring harness |
| --- | models with automatic gearbox only |
| * | from November 2001 |
| -●-●- | up to October 2001 |
| J220 | Motronic control unit, in centre plenum chamber |
| 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 | Spark plugs |
| T4a | 4-pin connector |
| T4b | 4-pin connector |
| T4c | 4-pin connector |
| T4d | 4-pin connector |
| T121 | 121-pin connector |
| 15 | Earth point, on cylinder head |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| 281 | Earth connection 1, in engine wiring harness |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| G186 | Throttle valve drive (electric power control) |
| G187 | Throttle valve drive angle sender 1 (electric power control) |
| G188 | Throttle valve drive angle sender 2 (electric power control) |
| J220 | Motronic control unit, in centre plenum chamber |
| J293 | Radiator fan control unit, in engine compartment, front left |
| J338 | Throttle valve module |
| N79 | Heater element for crankcase breather |
| N323 | Ignition coil 5 with output stage |
| P | Spark plug connector |
| Q | Spark plugs |
| T4e | 4-pin connector |
| T6a | 6-pin connector |
| T14 | 14-pin connector |
| T14a | 14-pin connector, near battery |
| T121 | 121-pin connector |
| V51 | Continued coolant circulation pump |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| 281 | Earth connection 1, in engine wiring harness |
| 608 | Earth point, in centre of plenum chamber |
| 609 | Earth point, on right in plenum chamber |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| * | only models with manual gearbox |
| G2 | Coolant temperature sender |
| G40 | Hall sender |
| G62 | Coolant temperature sender |
| G163 | Hall sender 2 |
| J220 | Motronic control unit, in centre plenum chamber |
| T14a | 14-pin connector, near battery |
| T121 | 121-pin connector |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| 608 | Earth point, in centre of plenum chamber |
| D101 | Connection 1, in engine wiring harness |
| --- | models with automatic gearbox only |
| G28 | Engine speed sender |
| G61 | Knock sensor 1 |
| G66 | Knock sensor 2 |
| J220 | Motronic control unit, in centre plenum chamber |
| T2 | 2-pin connector, in front engine compartment |
| T3 | 3-pin connector, in front engine compartment |
| T3a | 3-pin connector, in rear engine compartment |
| T10 | 10-pin connector, orange, in connector protective housing, on left in plenum chamber |
| T121 | 121-pin connector |
| 139 | Earth connection (sender earth), in Motronic wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| ** | connection air conditioning system |
| *** | radiator fan control unit connection |
| J104 | ABS/ABS control unit with EDL |
| J217 | Automatic gearbox control unit |
| J220 | Motronic control unit, in centre plenum chamber |
| T10 | 10-pin connector, orange, in connector protective housing, on left in plenum chamber |
| T10w | 10-pin connector, white, in connector protective housing, on left in plenum chamber |
| T25 | 25-pin connector, on ABS/ABS control unit with EDL |
| T47a | 47-pin connector, on ABS control unit with EDL/ ASR/ ESP |
| T68a | 68-pin connector |
| T121 | 121-pin connector |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| --- | models with automatic gearbox only |
| G39 | Lambda probe |
| J220 | Motronic control unit, in centre plenum chamber |
| N156 | Variable intake manifold change-over valve |
| N205 | Inlet camshaft control valve 1 |
| N318 | Exhaust camshaft control valve 1 |
| T6c | 6-pin connector, near catalytic converter |
| T121 | 121-pin connector |
| D102 | Connection 2, in engine compartment wiring harness |
| E7 | Positive connection (87a), in Motronic wiring harness |
| ** | only models with central locking |
| -●●- | only models without central locking |
| G79 | Accelerator position sender |
| G131 | Lambda probe 2 after catalytic converter |
| G185 | Accelerator position sender -2- |
| J220 | Motronic control unit, in centre plenum chamber |
| N80 | Activated charcoal filter system solenoid valve 1 |
| T4g | 4-pin connector, near catalytic converter |
| T6b | 6-pin connector |
| T10h | 10-pin connector, blue, in connector protective housing, on left in plenum chamber |
| T121 | 121-pin connector |
| E7 | Positive connection (87a), in Motronic wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| ** | only models with central locking |
| J220 | Motronic control unit, in centre plenum chamber |
| J542 | Brake servo control unit |
| S51 | Fuse, in protective housing on left in engine compartment |
| T6j | 6-pin connector, in left engine compartment |
| T6k | 6-pin connector |
| T10g | 10-pin connector, grey, in connector protective housing, on left in plenum chamber |
| T121 | 121-pin connector |
| V192 | Vacuum pump for brakes |
| D104 | Positive connection 2 (30a), in engine compartment wiring harness |
| U8 | Positive connection (15a), in automatic gearbox wiring harness |
| --- | models with automatic gearbox only |
| F | Brake light switch |
| F47 | Cruise control system brake pedal switch |
| J220 | Motronic control unit, in centre plenum chamber |
| J299 | Secondary air pump relay, in protective housing on left in engine compartment (control number 100) |
| N112 | Secondary air inlet valve |
| S13 | Fuse 13 in fuse holder |
| S130 | Secondary air pump fuse, in protective housing on left in engine compartment |
| T10e | 10-pin connector, black, in connector protective housing, on left in plenum chamber |
| T121 | 121-pin connector |
| V101 | Secondary air pump motor |
| A18 | Connection (54), in dash panel wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| D103 | Connection 3, in engine compartment wiring harness |
| D104 | Positive connection 2 (30a), in engine compartment wiring harness |
| * | only models with manual gearbox |
| -●●- | only models with automatic gearbox from February 2001 |
| ** | models with automatic gearbox only, up to January 2001 |
| E45 | Cruise control system switch** |
| E227 | Cruise control system (CCS) SET button** |
| F36 | Clutch pedal switch* |
| J220 | Motronic control unit, in centre plenum chamber |
| T4q | 4-pin connector, (from May 2001) |
| T10e | 10-pin connector, black, in connector protective housing, on left in plenum chamber |
| T10s | 10-pin connector, next to steering column |
| T10w | 10-pin connector, white, in connector protective housing, on left in plenum chamber |
| T121 | 121-pin connector |
| A20 | Connection (15a), in dash panel wiring harness |
| * | only models with manual gearbox |
| ** | only models with GND |
| G70 | Air mass meter |
| J17 | Fuel pump relay |
| J217 | Automatic gearbox control unit |
| J220 | Motronic control unit, in centre plenum chamber |
| J234 | Airbag control unit, behind the lower console |
| T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
| T10 | 10-pin connector, orange, in connector protective housing, on left in plenum chamber |
| T68a | 68-pin connector |
| T75 | 75-pin connector |
| T121 | 121-pin connector |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A125 | Connection (crash signal), in dash panel wiring harness |
| * | only models with manual gearbox |
| --- | models with 5-speed automatic gearbox (AG5) only |
| -●-●- | up to April 2001 |
| G | Fuel gauge sender*** |
| G6 | Fuel pump |
| G32 | Coolant shortage indicator sender |
| S228 | Fuse 28 in fuse holder |
| S234 | Fuse 34 in fuse holder |
| S243 | Fuse 43 in fuse holder |
| T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
| T14a | 14-pin connector, near battery |
| 42 | Earth point, next to steering column |
| 49 | Earth point, on steering column |
| 135 | Earth connection 2, in dash panel wiring harness |
| 269 | Earth connection (sender earth) 1, in dash panel wiring harness |
| 504 | Screw connection (87F), on relay plate |
| A99 | Connection 1 (87), in dash panel wiring harness |
| A100 | Connection 2 (87), in dash panel wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| *** | models with four-wheel drive ⇒ four-wheel drive Current Flow Diagram |
| F1 | Oil pressure switch |
| G22 | Speedometer sender (Hall sender, on gearbox) |
| G266 | Oil level and oil temperature sender** |
| J217 | Automatic gearbox control unit |
| J285 | Control unit with display in dash panel insert |
| K3 | Oil pressure warning lamp |
| K38 | Oil level warning lamp** |
| S5 | Fuse 5 in fuse holder |
| S7 | Fuse 7 in fuse holder |
| T10h | 10-pin connector, blue, in connector protective housing, on left in plenum chamber |
| T14a | 14-pin connector, near battery |
| T32 | 32-pin connector, blue |
| T32a | 32-pin connector, green |
| T68a | 68-pin connector |
| B163 | Positive connection 1 (15), in interior wiring harness |
| * | only models with manual gearbox |
| ** | only flexible service interval display |
| --- | models with 5-speed automatic gearbox (AG5) only |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G5 | Rev. counter |
| G21 | Speedometer |
| H3 | Warning buzzer |
| J285 | Control unit with display in dash panel insert |
| K2 | Alternator warning lamp |
| K28 | Coolant temperature/coolant shortage warning lamp |
| K105 | Reserve fuel warning lamp |
| T12a | 12-pin connector, Climatronic connection only |
| T32 | 32-pin connector, blue |
| A13 | Connection (door contact switch), in dash panel wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| * | revolution signal engine control unit |
| E86 | Multifunction display call-up button |
| E109 | Multifunction display memory switch |
| G17 | Ambient temperature sensor |
| J119 | Multifunction display |
| J285 | Control unit with display in dash panel insert |
| J533 | Data bus diagnostic interface, in dash panel insert |
| K31 | Cruise control system warning lamp |
| K83 | Exhaust emissions warning lamp |
| K132 | Electric power control fault lamp |
| T6e | 6-pin connector |
| T16 | 16-pin connector, in centre dash panel, self-diagnosis connection |
| T32 | 32-pin connector, blue |
| T32a | 32-pin connector, green |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
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