A | Battery |
B | Starter |
C | Alternator |
C1 | Voltage regulator |
D | Ignition/starter switch |
J59 | X-contact relief relay |
J207 | Starter inhibitor relay, on the 13 position additional relay carrier |
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 |
* | only models with manual gearbox |
--- | only models with 02E double clutch gearbox 02E (DSG) |
D | Ignition/starter switch |
J271 | Motronic current supply relay, in protective housing on left in engine compartment (control number 428) |
S229 | Fuse 29 in fuse holder |
S237 | Fuse 37 in fuse holder |
T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
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 |
--- | only models with 02E double clutch gearbox 02E (DSG) |
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 |
P | Spark plug connector |
Q | Spark plugs |
T2 | 2-pin connector, in left engine compartment |
T4a | 4-pin connector |
T4b | 4-pin connector |
T4c | 4-pin connector |
T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
T121 | 121-pin connector |
18 | Earth point, on engine block |
85 | Earth connection -1-, in engine compartment wiring harness |
281 | Earth connection 1, in engine wiring harness |
A104 | Positive connection 2 (15), in dash panel wiring harness |
D51 | Positive connection 1 (15), in engine compartment wiring harness |
D78 | Positive connection 1 (30a), in engine compartment wiring harness |
D173 | Connection (87), in engine wiring harness |
D181 | Connection 2 (87a), in engine compartment wiring harness |
G186 | Throttle valve drive, electric throttle |
G187 | Throttle valve drives angle sender 1, electric throttle |
G188 | Throttle valve drives angle sender 2, electric throttle |
J220 | Motronic control unit, in centre plenum chamber |
J293 | Radiator fan control unit |
J338 | Throttle valve module |
N79 | Heater element for crankcase breather |
N156 | Variable intake manifold change-over valve |
T6a | 6-pin connector |
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 |
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 |
608 | Earth point, in centre of plenum chamber |
D173 | Connection (87), in engine wiring harness |
** | connection air conditioning system |
G2 | Coolant temperature sender |
G28 | Engine speed sender |
G40 | Hall sender |
G62 | Coolant temperature sender |
G163 | Hall sender 2 |
J220 | Motronic control unit, in centre plenum chamber |
T3 | 3-pin connector, near intake manifold |
T14a | 14-pin connector, near battery |
T121 | 121-pin connector |
220 | Earth connection (sender earth), in engine wiring harness |
D101 | Connection 1, in engine compartment wiring harness |
G61 | Knock sensor 1 |
G66 | Knock sensor 2 |
J220 | Motronic control unit, in centre plenum chamber |
T3a | 3-pin connector, in rear engine compartment |
T121 | 121-pin connector |
131 | Earth connection -2-, in engine compartment wiring harness |
139 | Earth connection (sender earth), in Motronic wiring harness |
220 | Earth connection (sender earth), in engine wiring harness |
608 | Earth point, in centre of plenum chamber |
J104 | ABS control unit with EDL |
J220 | Motronic control unit, in centre plenum chamber |
J743 | Mechatronic unit for double clutch gearbox, in gearbox |
S283 | Brake vacuum pump fuse (on relay plate) |
T6k | 6-pin connector |
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 |
T20e | 20-pin connector |
T47a | 47-pin connector, on ABS/ABS control unit with EDL/ ASR/ ESP |
T121 | 121-pin connector |
V192 | Vacuum pump for brakes |
609 | Earth point, on right in plenum chamber |
A121 | Connection (high bus), in dash panel wiring harness |
A122 | Connection (low bus), in dash panel wiring harness |
--- | only models with 02E double clutch gearbox 02E (DSG) |
G39 | Lambda probe |
G79 | Accelerator position sender |
G185 | Accelerator position sender -2- |
J220 | Motronic control unit, in centre plenum chamber |
T6b | 6-pin connector |
T6c | 6-pin connector, near catalytic converter |
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 |
E45 | Cruise control system switch** |
E227 | Cruise control system (CCS) SET button** |
G131 | Lambda probe 2 after catalytic converter |
J220 | Motronic control unit, in centre plenum chamber |
T4h | 4-pin connector, near catalytic converter |
T10e | 10-pin connector, black, in connector protective housing, on left in plenum chamber |
T10s | 10-pin connector, next to steering column |
T121 | 121-pin connector |
A20 | Connection (15a), in dash panel wiring harness |
E7 | Positive connection (87a), in Motronic wiring harness |
E30 | Connection (87a), in engine wiring harness |
** | only models with GND, models with multifunction display ⇒ Current Flow Diagram multifunction steering wheel for cruise control system and radio |
F | Brake light switch |
F36 | Clutch pedal switch |
F47 | 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) |
S13 | Fuse 13 in fuse holder |
T4q | 4-pin connector |
T10e | 10-pin connector, black, in connector protective housing, on left in plenum chamber |
T10w | 10-pin connector, white, 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 |
E53 | Connection 2 (87a), in Motronic wiring harness |
G70 | Air mass meter |
J17 | Fuel pump relay |
J220 | Motronic control unit, in centre plenum chamber |
J234 | Airbag control unit, behind the lower console |
J255 | Climatronic control unit |
N80 | Activated charcoal filter system solenoid valve 1 |
N112 | Secondary air inlet valve |
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 |
T16b | 16-pin connector |
T17a | 17-pin connector, behind centre dash panel |
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 Climatronic |
G | Fuel gauge sender |
G6 | Fuel pump |
G32 | Coolant shortage indicator sender |
G169 | Fuel gauge sender 2 |
S228 | Fuse 28 in fuse holder |
S232 | Fuse 32 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 |
A101 | Connection 3 (87), in dash panel wiring harness |
E30 | Connection (87a), in engine wiring harness |
E53 | Connection 2 (87a), in Motronic wiring harness |
--- | only models with 02E double clutch gearbox 02E (DSG) |
** | only models without Climatronic |
E86 | Multifunction display call-up button |
E109 | Multifunction display memory switch |
G17 | Ambient temperature sensor |
J119 | Multifunction display |
J255 | Climatronic control unit |
J285 | Control unit 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 |
T12a | 12-pin connector, behind centre dash panel |
T16 | 16-pin connector, in centre dash panel, self-diagnosis connection |
T20 | 20-pin connector |
T32 | 32-pin connector, blue |
T32a | 32-pin connector, green |
A76 | Connection (diagnosis wire K), in dash panel wiring harness |
** | only models without Climatronic |
-●- | only models with Climatronic |