A | Battery |
B | Starter |
C | Alternator |
C1 | Voltage regulator |
SA1 | Fuse -1- (30), in the E box |
T2t | 2-pin connector, in engine compartment, front left (on vehicles with heating) |
T4n | 4-pin connector, in engine compartment, front left (on vehicles with Climatic / Climatronic) |
T8a | 8-pin connector, on the onboard power supply control unit (black) |
1 | Earth strap, battery body |
12 | Earth point, on left in engine compartment (at longitudinal member) |
14 | Earth point, on gearbox |
* | on vehicles with alternator 90A / 110A |
** | on vehicles with alternator 140A |
J217 | Automatic gearbox control unit, below the front left mud wing |
SC1 | Fuse -1-, in fuse holder |
SC27 | Fuse -27-, in fuse holder |
SC29 | Fuse -29-, in fuse holder |
SC30 | Fuse -30-, in fuse holder |
SC31 | Fuse -31-, in fuse holder |
A20 | Positive connection -1- (15a), in dash panel wiring harness |
B280 | Positive connection -4- (15a), in interior wiring harness |
B315 | Positive connection -1- (30a), in interior wiring harness |
** | only on vehicles with automatic Gearbox |
J682 | Terminal 50 voltage supply relay, at additional relay holder below dash panel |
SC2 | Fuse -2-, in fuse holder |
SC4 | Fuse -4-, in fuse holder |
T8a | 8-pin connector, on the onboard power supply control unit (black) |
T11a | 11-pin connector, on the onboard power supply control unit (black) |
374 | Earth connection -9-, in interior wiring harness |
A20 | Positive connection -1- (15a), in dash panel wiring harness |
A38 | Positive connection -2- (15a), in dash panel wiring harness |
B239 | Positive connection -1- (50), in interior wiring harness |
B279 | Positive connection -3- (15a), in interior wiring harness |
* | only on vehicles with extended servicing intervals (ESI) |
J220 | Motronic control unit |
T14a | 14-pin connector, on front left in engine compartment (black) |
T94a | 94-pin connector, at engine control unit |
44 | Earth point -1-, on lower part of left A-pillar |
131 | Earth connection -2-, in engine compartment wiring harness |
D180 | Connection -1- (87a), in engine compartment wiring harness |
** | only on vehicles with automaticGearbox |
G28 | Engine speed sender |
G40 | Camshaft position sender |
G83 | Coolant temperature sender at radiator outlet |
J220 | Motronic control unit |
J293 | Radiator fan control unit |
T3l | 3-pin connector, at engine speed sender |
T3m | 3-pin connector, at camshaft position sender |
T4p | 4-pin connector, in the holder on the left radiator |
T60a | 60-pin connector, at engine control unit |
T94a | 94-pin connector, at engine control unit |
220 | Earth connection (sender earth), in engine wiring harness |
316 | Earth connection (sender earth) -2- in engine wiring harness |
D141 | Connection (5V), in engine wiring harness |
* | only on vehicles with optional equipment, depending upon the type of radiator fan |
G295 | NOx sender |
G336 | Intake manifold flap potentiometer |
J220 | Motronic control unit |
J583 | NOx sensor control unit |
T5m | 5-pin connector, at NOx sensor control unit |
T6t | 6-pin connector, at intake manifold flap motor |
T60a | 60-pin connector, at engine control unit |
T94a | 94-pin connector, at engine control unit |
V157 | Intake manifold flap motor |
131 | Earth connection -2-, in engine compartment wiring harness |
220 | Earth connection (sender earth), in engine wiring harness |
D141 | Connection (5V), in engine wiring harness |
D181 | Connection -2- (87a), in engine compartment wiring harness |
G42 | Intake air temperature sender |
G71 | Intake manifold pressure sender |
G212 | Exhaust gas recirculation potentiometer |
J220 | Motronic control unit |
N18 | Exhaust gas recirculation valve |
T4t | 4-pin connector, at intake air temperature sender and intake manifold pressure |
T6p | 6-pin connector, at exhaust gas recirculation valve |
T60a | 60-pin connector, at engine control unit |
220 | Earth connection (sender earth), in engine wiring harness |
D141 | Connection (5V), in engine wiring harness |
G235 | Exhaust gas temperature sender -1- |
G247 | Fuel pressure sender |
G299 | Intake air temperature sender -2- |
J220 | Motronic control unit |
T3z | 3-pin connector, at fuel pressure sender |
T60a | 60-pin connector, at engine control unit |
T94a | 94-pin connector, at engine control unit |
220 | Earth connection (sender earth), in engine wiring harness |
327 | Earth connection (sender earth), in engine compartment wiring harness |
D141 | Connection (5V), in engine wiring harness |
* | only on vehicles with optional equipment, depending upon the type of radiator fan |
J220 | Motronic control unit |
N80 | Activated charcoal filter system solenoid valve |
N156 | Variable intake manifold change-over valve |
N205 | Inlet camshaft timing adjustment valve -1- |
N276 | Fuel pressure regulating valve |
T14a | 14-pin connector, on front left in engine compartment (black) |
T60a | 60-pin connector, at engine control unit |
D173 | Connection (87a), in engine wiring harness |
J220 | Motronic control unit |
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 plug |
T4t | 4-pin connector, at ignition coil 1 |
T4u | 4-pin connector, at ignition coil 2 |
T4v | 4-pin connector, at ignition coil 3 |
T4w | 4-pin connector, at ignition coil 4 |
T60a | 60-pin connector, at engine control unit |
15 | Earth point, on cylinder head |
281 | Earth connection -1-, in engine wiring harness |
306 | Earth connection (ignition coils), in engine harness |
D35 | Positive connection -1- (15a), in engine wiring harness |
G294 | Brake servo pressure sensor |
J162 | Heater control unit |
J220 | Motronic control unit |
T4y | 4-pin connector, at brake servo pressure sensor |
T6s | 6-pin connector, at the brake vacuum pump |
T94a | 94-pin connector, at engine control unit |
V192 | Vacuum pump for brakes |
327 | Earth connection (sender earth), in engine compartment wiring harness |
D195 | Connection -1- (5V), in engine compartment wiring harness |
* | only on vehicles with heating |
** | only on vehicles with automatic Gearbox |
F | Brake light switch, at master brake cylinder |
F47 | Brake pedal switch, at master brake cylinder |
G476 | Clutch position sender |
J220 | Motronic control unit |
J527 | Steering column electronics control unit |
T4c | 4-pin connector, at brake pedal switch |
T5j | 5-pin connector, at clutch position sender |
T16a | 16-pin connector, on the onboard power supply control unit (black) |
T20a | 20-pin connector, at steering column electronics control unit |
T94a | 94-pin connector, at engine control unit |
372 | Earth connection -7-, in interior wiring harness |
374 | Earth connection -9-, in interior wiring harness |
A18 | Connection (54), in dash panel wiring harness |
* | not valid for vehicles with automatic gearbox Gearbox |
G3 | Coolant temperature gauge |
J220 | Motronic control unit |
J285 | Control unit in dash panel insert |
J533 | Data bus diagnostic interface, below dash panel, centre |
K | Dash panel insert |
K28 | Coolant temperature and coolant shortage indicator warning lamp |
T16b | 16-pin connector, for diagnostic connection, below dash panel, left |
T20c | 20-pin connector, at data bus diagnostic interface |
T36a | 36-pin connector, at dash panel insert |
T94a | 94-pin connector, at engine control unit |
A76 | Connection (diagnosis wire K), in dash panel wiring harness |
B383 | Connection -1- (CAN H, drive), in interior wiring harness |
B390 | Connection -1- (CAN L, drive), in interior wiring harness |
F1 | Oil pressure switch |
G1 | Fuel gauge |
G5 | Rev. Counter |
G21 | Speedometer |
G169 | Fuel level sender -2- |
G266 | Oil level/oil temperature sender |
J285 | Control unit in dash panel insert |
K | Dash panel insert |
K3 | Oil pressure warning lamp |
K38 | Oil level warning lamp |
K83 | Exhaust emissions warning lamp |
K105 | Fuel reserve warning lamp |
K132 | Electronic power control fault lamp |
T6j | 6-pin connector, on front left in engine compartment (black) |
T14a | 14-pin connector, on front left in engine compartment (black) |
T36a | 36-pin connector, at dash panel insert |
269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
281 | Earth connection -1-, in engine wiring harness |
374 | Earth connection -9-, in interior wiring harness |
* | only on vehicles with extended servicing intervals (ESI) |
** | only for vehicles with four-wheel drive |