| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| S204 | Fuse -1- (30) |
| T2ad | 2-pin connector, black, near alternator, in engine compartment, front right |
| TV1 | Junction box |
| TV2 | Terminal 30 junction box |
| 3 | Earth strap, engine-body |
| 13 | Earth point, in engine compartment, right |
| 51 | Earth point, luggage compartment, right |
| A17 | Connection (61), in dash panel wiring harness |
| E104 | Earth connection, in dash panel wiring harness (near relay point) |
| D | Ignition/starter switch |
| F125 | Multi-function switch |
| J207 | Starter inhibitor relay |
| J623 | Engine control unit |
| S6 | Fuse in fuse carrier |
| S102 | Engine control unit fuse |
| T6e | 6-pin connector, brown, connector point, electronics box, plenum chamber |
| T10 | 10-pin connector, blue, connector point, electronics box, plenum chamber |
| T10a | 10-pin connector, black, connector point, electronics box, plenum chamber |
| T10d | 10-pin connector, red, connector point, electronics box, plenum chamber |
| T10ab | 10-pin connector, black, on gearbox |
| 43 | Earth point, lower part of right A pillar |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A74 | Connection (15a, fuse 6), in dash panel wiring harness |
| A86 | Connection (50a), in dash panel wiring harness |
| D52 | Positive (+) connection (15a), in engine compartment wiring harness |
| E100 | Connection (multi-function switch), in dash panel wiring harness |
| J623 | Engine control unit |
| N30 | Injector, cylinder 1 |
| N31 | Injector, cylinder 2 |
| N32 | Injector, cylinder 3 |
| N33 | Injector, cylinder 4 |
| 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 |
| S2 | Fuse in fuse carrier |
| T10 | 10-pin connector, blue, connector point, electronics box, plenum chamber |
| 221 | Earth connection (engine earth), in engine wiring harness |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| A100 | Connection -2- (87), in dash panel wiring harness |
| D95 | Connection (injectors), in engine compartment wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| J623 | Engine control unit |
| N83 | Injector, cylinder 5 |
| N84 | Injector, cylinder 6 |
| N323 | Ignition coil 5 with final output stage |
| N324 | Ignition coil 6 with final output stage |
| P | Spark plug connector |
| Q | Spark plugs |
| S116 | Injector fuse |
| 17 | Earth point, on intake manifold |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| 221 | Earth connection (engine earth), in engine wiring harness |
| D95 | Connection (injectors), in engine compartment wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| E45 | Cruise control system switch |
| G79 | Accelerator pedal position sender |
| G185 | Accelerator pedal position sender -2- |
| 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) |
| J338 | Throttle valve control unit |
| J623 | Engine control unit |
| T10w | 10-pin connector, white, connector point, electronics box, plenum chamber |
| A16 | Connection (cruise control system), in dash panel wiring harness |
| * | Models with cruise control system |
| G2 | Coolant temperature sender |
| G28 | Engine speed sender |
| G61 | Knock sensor 1 |
| G62 | Coolant temperature sender |
| G66 | Knock sensor 2 |
| J217 | Automatic gearbox control unit |
| J623 | Engine control unit |
| T3be | 3-pin connector, grey, at knock sensor 1 |
| T3bf | 3-pin connector, white, at knock sensor 2 |
| T3bi | 3-pin connector, black, engine speed sender, crankshaft, in engine compartment |
| T10 | 10-pin connector, blue, connector point, electronics box, plenum chamber |
| T10a | 10-pin connector, black, connector point, electronics box, plenum chamber |
| T16a | 16-pin connector, diagnosis connection |
| 220 | Earth connection (sender earth), in engine wiring harness |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| D90 | Connection (RPM signal), in engine compartment wiring harness |
| D102 | Connection -2-, in engine compartment wiring harness |
| D166 | Connection (K diagnosis wiring), in engine compartment wiring harness |
| G40 | Hall sender |
| G300 | Hall sender 3 |
| J271 | Motronic current supply relay |
| J623 | Engine control unit |
| T10c | 10-pin connector, green, connector point, electronics box, plenum chamber |
| 200 | Earth connection (screening), in engine compartment wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| E16 | Positive (+) connection (5 volts), in Motronic wiring harness |
| E109 | Connection (30, central electrics), in dash panel wiring harness |
| G39 | Lambda probe |
| G70 | Air mass meter |
| G108 | Lambda probe 2 |
| J217 | Automatic gearbox control unit |
| J623 | Engine control unit |
| S113 | Automatic gearbox control unit fuse |
| T10a | 10-pin connector, black, connector point, electronics box, plenum chamber |
| T10d | 10-pin connector, red, connector point, electronics box, plenum chamber |
| T6at | 6-pin connector, black, lambda probe 1, cylinders 1 to 3 |
| T6au | 6-pin connector, brown, lambda probe 2, cylinders 4 to 6 |
| 200 | Earth connection (screening), in engine compartment wiring harness |
| A99 | Connection -1- (87), in dash panel wiring harness |
| D50 | Positive (+) connection (30), in engine compartment wiring harness |
| E28 | Connection (lambda probe heating), in Motronic wiring harness |
| G130 | Lambda probe downstream of catalytic converter |
| G131 | Lambda probe 2 downstream of catalytic converter |
| J623 | Engine control unit |
| N80 | Activated charcoal filter system solenoid valve 1 (pulsed) |
| N112 | Secondary air inlet valve |
| N220 | Exhaust flap valve |
| T4am | 4-pin connector, black, lambda probe downstream of catalytic converter, cylinders 1 to 3 |
| T4an | 4-pin connector, brown, lambda probe downstream of catalytic converter, cylinders 4 to 6 |
| T10b | 10-pin connector, yellow, connector point, electronics box, plenum chamber |
| 200 | Earth connection (screening), in engine compartment wiring harness |
| E7 | Positive (+) connection (87a), in Motronic wiring harness |
| E28 | Connection (lambda probe heating), in Motronic wiring harness |
| E87 | Control and display unit for air conditioner |
| J17 | Fuel pump relay |
| J299 | Secondary air pump relay |
| J623 | Engine control unit |
| S1 | Fuse in fuse carrier |
| S3 | Fuse in fuse carrier |
| S117 | Control element fuse |
| S130 | Secondary air pump fuse |
| T6a | 6-pin connector, purple, connector point, electronics box, plenum chamber |
| T6e | 6-pin connector, brown, connector point, electronics box, plenum chamber |
| T10c | 10-pin connector, green, connector point, electronics box, plenum chamber |
| T10d | 10-pin connector, red, connector point, electronics box, plenum chamber |
| V101 | Secondary air pump motor |
| 221 | Earth connection (engine earth), in engine wiring harness |
| A52 | Positive (+) connection 2 (30), in dash panel wiring harness |
| E7 | Positive (+) connection (87a), in Motronic wiring harness |
| F265 | Map-controlled engine cooling thermostat |
| G382 | Radiator fan drive circuit temperature sender |
| J623 | Engine control unit |
| N145 | Electro/hydraulic engine mounting solenoid valve, right |
| N205 | Inlet camshaft timing adjustment valve 1 |
| N313 | Radiator fan valve |
| N318 | Exhaust camshaft timing adjustment valve -1- |
| S285 | Control element fuse 2 |
| T2cv | 2-pin connector, black, in engine compartment, front left |
| T6e | 6-pin connector, brown, connector point, electronics box, plenum chamber |
| T10 | 10-pin connector, blue, connector point, electronics box, plenum chamber |
| T10d | 10-pin connector, red, connector point, electronics box, plenum chamber |
| E32 | Connection (87), in engine wiring harness |
| F | Brake light switch |
| F47 | Cruise control system brake pedal switch (diesel direct injection system) |
| J104 | ABS with EDL control unit |
| J151 | Continued coolant circulation relay |
| J623 | Engine control unit |
| M9 | Brake light bulb, left |
| M10 | Brake light bulb, right |
| S9 | Fuse in fuse carrier |
| S10 | Fuse in fuse carrier |
| S78 | Coolant pump fuse |
| T10 | 10-pin connector, blue, connector point, electronics box, plenum chamber |
| T10b | 10-pin connector, yellow, connector point, electronics box, plenum chamber |
| T10c | 10-pin connector, green, connector point, electronics box, plenum chamber |
| V51 | Continued coolant circulation pump |
| 83 | Earth connection -1-, in front right wiring harness |
| A18 | Connection (54), in dash panel wiring harness |
| B235 | Positive (+) connection -4- (15a), in interior wiring harness |
| E3 | Hazard warning light switch |
| J217 | Automatic gearbox control unit |
| J234 | Airbag control unit |
| J623 | Engine control unit |
| T6t | 6-pin connector, red, footwell, right, at wheelhouse, behind carpet |
| T10a | 10-pin connector, black, connector point, electronics box, plenum chamber |
| T10d | 10-pin connector, red, connector point, electronics box, plenum chamber |
| T16 | 16-pin connector, connector plug C at V94 |
| V94 | Central locking motor with control unit for interior lights switch-off delay and anti-theft alarm system |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| A125 | Connection (crash signal), in dash panel wiring harness |
| D159 | Connection (high bus), in engine compartment wiring harness |
| D160 | Connection (low bus), in engine compartment wiring harness |
| • | CAN bus (data wire) |
| G8 | Oil 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) |
| G198 | Knock sensor 3 |
| G199 | Knock sensor 4 |
| J544 | Throttle valve control unit 2 |
| J624 | Engine control unit 2 |
| T3bg | 3-pin connector, orange, at knock sensor 3 |
| T3bh | 3-pin connector, black, at knock sensor 4 |
| T10 | 10-pin connector, blue, connector point, electronics box, plenum chamber |
| T10a | 10-pin connector, black, connector point, electronics box, plenum chamber |
| 201 | Earth connection -5-, in engine compartment wiring harness |
| 209 | Earth connection -6-, in engine compartment wiring harness |
| • | CAN bus (data wire) |
| G286 | Lambda probe 4 |
| G287 | Lambda probe 3 downstream of catalytic converter |
| G288 | Lambda probe 4 downstream of catalytic converter |
| J624 | Engine control unit 2 |
| N144 | Electro/hydraulic engine mounting solenoid valve, left |
| N208 | Inlet camshaft timing adjustment valve 2 |
| N319 | Exhaust camshaft timing adjustment valve -2- |
| T4ao | 4-pin connector, black, lambda probe 3 downstream of catalytic converter, cylinders 7 to 9 |
| T4ap | 4-pin connector, brown, lambda probe 4 downstream of catalytic converter, cylinders 10 to 12 |
| T6aw | 6-pin connector, brown, lambda probe 4, cylinders 10 to 12 |
| 167 | Earth connection -4-, in engine compartment wiring harness |
| E87 | Control and display unit for air conditioner |
| F129 | Air conditioner pressure switch |
| J26 | Radiator fan relay |
| J29 | Diode |
| J545 | Secondary air pump relay 2 |
| J624 | Engine control unit 2 |
| N320 | Secondary air inlet valve 2 |
| N333 | Activated charcoal filter system solenoid valve 2 |
| S131 | Fuse for radiator fan, countries with hot climate |
| S284 | Secondary air pump fuse 2 |
| T6a | 6-pin connector, purple, connector point, electronics box, plenum chamber |
| V35 | Radiator fan, right |
| V177 | Radiator fan -2- |
| V189 | Secondary air pump motor 2 |
| 82 | Earth connection -1-, in front left wiring harness |
| 112 | Earth connection -2-, in air conditioner wiring harness |
| 221 | Earth connection (engine earth), in engine wiring harness |
| A166 | Connection (radiator fan speed), in dash panel wiring harness |
| E104 | Earth connection, in dash panel wiring harness (near relay point) |
| * | Above fuse S130 on fuse box |
| ** | Applies to models for countries with hot climate |
| E87 | Control and display unit for air conditioner |
| F18 | Radiator fan thermo-switch |
| F54 | Radiator fan thermo-switch |
| J101 | Radiator fan 2nd speed relay |
| J135 | Radiator fan 3rd speed relay |
| J397 | Radiator fan run-on relay |
| N39 | Radiator fan series resistor |
| S4 | Fuse in fuse carrier |
| S42 | Radiator fan single fuse |
| T2cx | 2-pin connector, black, at radiator fan |
| V7 | Radiator fan |
| 83 | Earth connection -1-, in front right wiring harness |
| 108 | Earth connection -2-, in front left wiring harness |
| A36 | Connection (75a), in dash panel wiring harness |
| A52 | Positive (+) connection 2 (30), in dash panel wiring harness |
| C11 | Connection, in radiator fan wiring harness |
| C23 | Connection (radiator fan speed I), in headlight/air conditioner wiring harness |
| E106 | Connection (30, radiator fan), in dash panel wiring harness |
| * | Dash panel carrier, left |
| ** | Applies to models for countries with hot climate |
| F1 | Oil pressure switch |
| G | Fuel gauge sender |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G6 | Fuel pump (pre-supply pump) |
| G169 | Fuel gauge sender 2 |
| G266 | Oil level thermo sender |
| J285 | Control unit with display in dash panel insert |
| K2 | Alternator warning lamp |
| K3 | Oil pressure warning lamp |
| S8 | Fuse in fuse carrier |
| T3az | 3-pin connector, in engine compartment, front right |
| T10a | 10-pin connector, black, connector point, electronics box, plenum chamber |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| T32b | 32-pin connector, grey, on dash panel insert |
| 49 | Earth point, near fuel pump |
| 83 | Earth connection -1-, in front right wiring harness |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| * | Sender earth output |
| ** | Applies to models for countries with hot climate |
| C19 | Interference suppressor |
| G17 | Ambient temperature sensor |
| G21 | Speedometer |
| G22 | Speedometer sender (Hall sender, on gearbox) |
| J285 | Control unit with display in dash panel insert |
| S1 | Fuse in fuse carrier |
| S4 | Fuse in fuse carrier |
| T10 | 10-pin connector, blue, connector point, electronics box, plenum chamber |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| T32b | 32-pin connector, grey, on dash panel insert |
| 102 | Earth connection, in gearbox wiring harness |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| E103 | Connection (15a), in dash panel wiring harness, right |
| E105 | Earth connection, in dash panel wiring harness, left |
| L11 | Connection -3-, in air conditioner wiring harness |
| • | CAN bus (data wire) |
