A | Battery |
B | Starter |
C | Alternator |
C1 | Voltage regulator |
D | Ignition/starter switch |
S5 | Fuse in relay plate fuse holder |
S14 | Fuse in relay plate fuse holder |
S88 | Strip fuse |
S243 | Fuse in fuse holder |
T1 | Single connector, black, right engine compartment |
T2 | 2-pin connector, black, right engine compartment |
11 | Earth point, in battery box |
500 | Screw connection 1 (30), on relay plate |
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 |
A57 | Positive connection 3 (30), in dash panel wiring harness |
J271 | Motronic current supply relay |
J538 | Fuel pump control unit |
J623 | Engine control unit |
J757 | Engine component current supply relay |
S4 | Fuse in relay plate fuse holder |
S228 | Fuse in fuse holder |
S286 | Automatic gearbox fuse, run-on |
T5d | 5-pin connector, black, near fuel pump |
T17d | 17-pin connector, red, coupling station on electronics box, plenum chamber |
T17j | 17-pin connector, brown, coupling station on electronics box, plenum chamber |
T94 | 94-pin connector, black |
249 | Earth connection 2, in interior wiring harness |
A151 | Connection 4 (87), in dash panel wiring harness |
D50 | Positive connection (30), in engine compartment wiring harness |
D101 | Connection 1, in engine compartment wiring harness |
D103 | Connection 3, in engine compartment wiring harness |
* | Connector is dropped for models with four-wheel drive |
** | for models with automatic gearbox (AG6) only |
*** | for models with automatic gearbox (multitronic 01J / multitronic 0AN) only |
C24 | Suppression filter |
J53 | Starter motor relay |
J393 | Convenience system central control unit |
J623 | Engine control unit |
J695 | Starter motor relay 2 |
T1h | Single connector, on suppression filter |
T1j | Single connector, on suppression filter |
T12h | 12-pin connector, black, on convenience system central control unit (used to be connector 1) |
T17j | 17-pin connector, brown, coupling station on electronics box, plenum chamber |
T94 | 94-pin connector, black |
B207 | Connection (convenience), in interior wiring harness |
D97 | Connection (50), in engine compartment right wiring harness |
D109 | Connection 7, in engine compartment wiring harness |
J623 | Engine control unit |
N156 | Variable intake manifold change-over valve |
N316 | Intake manifold flap valve |
T17d | 17-pin connector, red, coupling station on electronics box, plenum chamber |
T60 | 60-pin connector, black |
T94 | 94-pin connector, black |
V144 | Fuel system diagnostic pump |
V274 | Fan for control unit |
D172 | Connection (engine electrics), in engine compartment wiring harness |
* | for models with fuel system diagnostic pump only |
** | In electronics box in plenum chamber |
G42 | Intake air temperature sender |
G71 | Intake manifold pressure sender |
G247 | Fuel pressure sender |
J623 | Engine control unit |
N144 | Left electrohydraulic engine mounting solenoid valve |
N145 | Right electrohydraulic engine mounting solenoid valve |
T14a | 14-pin connector, black, on left in engine compartment |
T60 | 60-pin connector, black |
T94 | 94-pin connector, black |
327 | Earth connection (sender earth), in engine compartment wiring harness |
D107 | Connection 5, in engine compartment wiring harness |
D174 | Connection 2 (5V), in engine wiring harness |
* | for models with automatic gearbox (multitronic 01J / multitronic 0AN or AG6) only |
J293 | Radiator fan control unit |
J496 | Additional coolant pump relay |
J623 | Engine control unit |
N205 | Inlet camshaft control valve 1 |
N208 | Inlet camshaft control valve 2 |
N318 | Exhaust camshaft control valve 1 |
N319 | Exhaust camshaft control valve 2 |
S344 | Engine electronics fuse 2 |
T10d | 10-pin connector, grey, coupling station on left of A-pillar |
T17d | 17-pin connector, red, coupling station on electronics box, plenum chamber |
T60 | 60-pin connector, black |
T94 | 94-pin connector, black |
V51 | Continued coolant circulation pump |
D107 | Connection 5, in engine compartment wiring harness |
* | for models with continued coolant circulation pump only |
F | Brake light switch |
F36 | Clutch pedal switch |
F47 | Brake pedal switch |
G79 | Accelerator position sender |
G185 | Accelerator position sender 2 |
G186 | Throttle valve drive (electric power control) |
G187 | Throttle valve drive angle sender 1 for electric throttle |
G188 | Throttle valve drive angle sender 2 for electric throttle |
J338 | Throttle valve module |
J527 | Steering column electronics control unit |
J623 | Engine control unit |
T16a | 16-pin connector, black, on steering column electronics control unit |
T17d | 17-pin connector, red, coupling station on electronics box, plenum chamber |
T17e | 17-pin connector, white, coupling station on electronics box, plenum chamber |
T17j | 17-pin connector, brown, coupling station on electronics box, plenum chamber |
T60 | 60-pin connector, black |
T94 | 94-pin connector, black |
A18 | Connection (54), in dash panel wiring harness |
A99 | Connection 1 (87), in dash panel wiring harness |
* | ⇒ applicable Current Flow Diagram: anti-lock brake system |
** | for models with manual gearbox only |
G108 | Lambda probe 2 |
G131 | Lambda probe 2 after catalytic converter |
G513 | Variable intake manifold position sender |
J623 | Engine control unit |
T4c | 4-pin connector, brown, connector point lambda probe (bulkhead) |
T6a | 6-pin connector, black, connector point lambda probe (bulkhead) |
T94 | 94-pin connector, black |
Z28 | Lambda probe 2 heater |
Z30 | Lambda probe 2 heater after catalytic converter |
D108 | Connection 6, in engine compartment wiring harness |
J623 | Engine control unit |
N292 | Ignition coil 4 with output stage |
N323 | Ignition coil 5 with output stage |
N324 | Ignition coil 6 with output stage |
P | Spark plug connector |
Q | Spark plugs |
T60 | 60-pin connector, black |
T94 | 94-pin connector, black |
12 | Earth point, on left in engine compartment |
19 | Earth point, near coil |
83 | Earth connection 1, in front right wiring harness |
121 | Earth connection 2, in front right wiring harness |
343 | Earth connection (ignition coil), in injection system wiring harness |
D106 | Connection 4, in engine compartment wiring harness |
F194 | Clutch pedal switch for engine start |
J217 | Automatic gearbox control unit |
J285 | Control unit in dash panel insert |
J623 | Engine control unit |
T16 | 16-pin connector, black, diagnostic connector |
T17d | 17-pin connector, red, coupling station on electronics box, plenum chamber |
T17e | 17-pin connector, white, coupling station on electronics box, plenum chamber |
T32a | 32-pin connector, green, on dash panel insert |
T94 | 94-pin connector, black |
238 | Earth connection 1, in interior wiring harness |
A76 | Connection (diagnosis wire K), in dash panel wiring harness |
A121 | Connection (high bus), in dash panel wiring harness |
A122 | Connection (low bus), in dash panel wiring harness |
D159 | Connection (high bus), in engine compartment wiring harness |
D160 | Connection (low bus), in engine compartment wiring harness |
* | for models with automatic gearbox (AG6) only |
** | for models with automatic gearbox (multitronic 01J / multitronic 0AN) only |
*** | for models with manual gearbox only |
● | Data bus wire (CAN bus) |
F1 | Oil pressure switch |
F66 | Coolant shortage indicator switch |
G | Fuel gauge sender |
G6 | Fuel system pressurisation pump |
G169 | Fuel gauge sender 2 |
G266 | Oil level and oil temperature sender |
J285 | Control unit in dash panel insert |
K2 | Alternator warning lamp |
T5d | 5-pin connector, black, near fuel pump |
T17d | 17-pin connector, red, coupling station on electronics box, plenum chamber |
T17e | 17-pin connector, white, coupling station on electronics box, plenum chamber |
T32 | 32-pin connector, blue, on dash panel insert |
T32a | 32-pin connector, green, on dash panel insert |
269 | Earth connection (sender earth) 1, in dash panel wiring harness |
A74 | Connection (15a, fuse 5), in dash panel wiring harness |
* | not for models with four-wheel drive |
** | output for signal earth |
*** | for models with four-wheel drive only |
No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
1 | - | S1 - Fuse in relay plate fuse holder | 10 A | - | E87 - Operating and display unit for air conditioning system/Climatronic J255 - Climatronic control unit | 30 |
2 | - | S2 - Fuse in relay plate fuse holder | 5 A | - | W9 - Left footwell light W10 - Right footwell light | 30 |
3 | - | S3 - Fuse in relay plate fuse holder | 5 A | - | Z20 - Left washer jet heater element Z21 - Right washer jet heater element | 75x |
4 | - | S4 - Fuse in relay plate fuse holder | 5 A | - | J293 - Radiator fan control unit J671 - Radiator fan control unit 2 | 87 |
5 | - | S5 - Fuse in relay plate fuse holder | 10 A | - | E272 - Function selection switch 2 F189 - Tiptronic switch G226 - Oil level and oil temperature sender J401 - Navigation system with CD drive control unit J446 - Parking aid control unit J526 - Telephone and telematics control unit, telematics R36 - Telephone transmitter and receiver unit | 15 |
6 | - | S6 - Fuse in relay plate fuse holder | 5 A | - | G65 - High-pressure sender G238 - Air quality sensor | 15 |
7 | - | S7 - Fuse in relay plate fuse holder | 10 A | - | E132 - Traction control system switch F36 - Clutch pedal switch G85 - steering angle sender J104 - ABS control unit | 15 |
8 | - | S8 - Fuse in relay plate fuse holder | 5 A | - | J526 - Telephone and telematics control unit, telematics R36 - Telephone transmitter and receiver unit R86 - Aerial amplifier for mobile telephone | 30 |
9 | - | S9 - Fuse in relay plate fuse holder | 15 A | - | J569 - Brake servo relay | 30 |
No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
10 | - | S10 - Fuse in relay plate fuse holder | 5 A | - | E102 - Headlight range control regulator J431 - Headlight range control, control unit V48 - Left headlight range control motor V49 - Right headlight range control motor | 15 |
11 | - | S11 - Fuse in relay plate fuse holder | | - | Vacant | |
12 | - | S12 - Fuse in relay plate fuse holder | 10 A | - | T16 - 16-pin connector, black, diagnostic connector | 30 |
13 | - | S13 - Fuse in relay plate fuse holder | 10 A | - | J527 - Steering column electronics control unit | 30 |
14 | - | S14 - Fuse in relay plate fuse holder | 10 A | - | F - Brake light switch | 30 |
15 | - | S15 - Fuse in relay plate fuse holder | 10 A | - | J285 - Control unit in dash panel insert J401 - Navigation system with CD drive control unit | 30 |
16 | - | S16 - Fuse in relay plate fuse holder | 5 A | - | E284 - Garage door operating unit J530 - Garage door operation control unit | 15 |
17 | - | S17 - Fuse in relay plate fuse holder | 10 A | - | J446 - Parking aid control unit | 30 |
18 | - | S18 - Fuse in relay plate fuse holder | | - | Vacant | |
19 | - | S19 - Fuse in relay plate fuse holder | 15 | - | E23 - Front and rear fog light switch | 15 |
No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
20 | - | S20 - Fuse in relay plate fuse holder | 15 A | - | J85 - Alarm system control unit M31 - Right headlight dipped beam bulb M32 - Right main beam bulb V49 - Right headlight range control motor | 56 |
21 | - | S21 - Fuse in relay plate fuse holder | 15 A | - | J343 - Left gas discharge light control unit M29 - Left headlight dipped beam bulb M30 - Left main beam bulb V48 - Left headlight range control motor | 56 |
22 | - | S22 - Fuse in relay plate fuse holder | 15 A | - | J386 - Driver door control unit J387 - Front passenger side door control unit | 30 |
23 | - | S223 - Fuse on fuse holder | | - | Vacant | |
24 | - | S224 - Fuse on fuse holder | 20 A | - | J393 - Convenience system central control unit | 30 |
25 | - | S225 - Fuse on fuse holder | 30 A | - | J126 - Fresh air blower control unit | 30 |
26 | - | S226 - Fuse on fuse holder | 30 A | - | J9 - Heated rear window relay E87 - Operating and display unit for air conditioning system/Climatronic | 30 |
27 | - | S227 - Fuse on fuse holder | 30 A | - | J345 - Trailer detector control unit | 30 |
28 | - | S228 - Fuse on fuse holder | 20 A | - | G6 - Fuel system pressurisation pump | 87 |
No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
29 | - | S229 - Fuse on fuse holder | 20 A | - | N - Ignition coil 1 N70 - Ignition coil 1 with output stage N127 - Ignition coil 2 with output stage N128 - Ignition coil 2 N158 - Ignition coil 3 N291 - Ignition coil 3 with output stage N292 - Ignition coil 4 with output stage N323 - Ignition coil 5 with output stage N324 - Ignition coil 6 with output stage N325 - Ignition coil 7 with output stage N326 - Ignition coil 8 with output stage | 87 |
30 | - | S230 - Fuse on fuse holder | 30 A | - | J256 - Convertible roof actuation control unit | 30 |
31 | - | S231 - Fuse on fuse holder | 15 A | - | F4-Reversing light switch F125 -Multifunction switch G70 - Air mass meter J60 - Automatic gearbox relay J217 - Automatic gearbox control unit M16 - Left reversing light bulb M17 - Right reversing light bulb T16 - 16-pin connector, black, diagnostic connector Y7 - Automatic anti-dazzle interior mirror | 15 |
32 | - | S232 - Fuse on fuse holder | 20 A | - | N30 - Injector, cylinder 1 N31 - Injector, cylinder 2 N32 - Injector, cylinder 3 N33 - Injector, cylinder 4 N83 - Injector, cylinder 5 N84 - Injector, cylinder 6 N85 - Injector, cylinder 7 N86 - Injector, cylinder 8 | 87 |
33 | - | S233 - Fuse on fuse holder | 15 A | - | U1 - Cigarette lighter | 30 |
| | | 20 A | - | U1 - Cigarette lighter (for models from model year 2006) | |
No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
34 | - | S234 - Fuse on fuse holder | 20 A | - | G70 - Air mass meter J155 - Turbocharger coolant pump control unit N80 - Activated charcoal filter system solenoid valve 1 N112 - Secondary air inlet valve N144 - Left electrohydraulic engine mounting solenoid valve N145 - Right electrohydraulic engine mounting solenoid valve N156 - Variable intake manifold change-over valve Z19 - Lambda probe heater Z29 - Lambda probe 1 heater after catalytic converter | 30 |
35 | - | S235 - Fuse on fuse holder | 30 A | - | U - socket | 30 |
| | | 20 A | - | U - Socket (for models from model year 2006) | |
36 | - | S236 - Fuse on fuse holder | 30 A | - | J519 - Onboard power supply control unit | 75x |
37 | - | S237 - Fuse on fuse holder | 30 A | - | J519 - Onboard power supply control unit V11 - Headlight washer system pump | 75x |
38 | - | S238 - Fuse on fuse holder | 15 A | - | G303 - Interior monitor send and receive module 1 G305 - Interior monitor send and receive module 2 H12-Alarm horn J393 - Convenience system central control unit | 30 |
39 | - | S239 - Fuse on fuse holder | 20 A | - | J401 - Navigation system with CD drive control unit J402 - Navigation operating electronics control unit J415 - Navigation system tuner for TV R - Radio R12 - Amplifier R94 - Navigation system interface T8 - 8-connector, black, radio connector III | 30 |
No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
40 | - | S240 - Fuse on fuse holder | 25 A | - | H2 - Treble tone horn H7 - Bass tone horn J4 - Dual tone horn relay | 75x |
41 | - | S241 - Fuse on fuse holder | | - | Vacant | |
42 | - | S242 - Fuse on fuse holder | 25 A | - | J104 - ABS control unit | 30 |
43 | - | S243 - Fuse on fuse holder | 15 A | - | J220 - Motronic control unit N75 - Variable intake manifold flap change-over valve N205 - Inlet camshaft control valve 1 N208 - Inlet camshaft control valve 2 | 15 |
44 | - | S244 - Fuse on fuse holder | 30 A | - | J215 - Heated rear left seat control unit J216 - Heated rear right seat control unit | 30 |
| | | 35 A | - | J215 - Heated rear left seat control unit (for models from model year 2006) J216 - Heated rear right seat control unit (for models from model year 2006) | |
No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
1 | - | S1 - Fuse in relay plate fuse holder | 10 A | - | J255 - Climatronic control unit | 30 |
2 | - | S2 - Fuse in relay plate fuse holder | 5 A | - | W9 - Left footwell light W10 - Right footwell light W45 - Rear left footwell light W46 - Rear right footwell light | 30 |
3 | - | S3 - Fuse in relay plate fuse holder | 5 A | - | Z20 - Left washer jet heater element Z21 - Right washer jet heater element | 75x |
4 | - | S4 - Fuse in relay plate fuse holder | 5 A | - | J293 - Radiator fan control unit J671 - Radiator fan control unit 2 | 87 |
5 | - | S5 - Fuse in relay plate fuse holder | 10 A | - | E272 - Function selection switch 2 F189 - Tiptronic switch G226 - Oil level and oil temperature sender J446 - Parking aid control unit | 15 |
6 | - | S6 - Fuse in relay plate fuse holder | 5 A | - | G65 - High-pressure sender G238 - Air quality sensor | 15 |
7 | - | S7 - Fuse in relay plate fuse holder | 10 A | - | E132 - Traction control system switch F36 - Clutch pedal switch F47 - Brake pedal switch J104 - ABS control unit | 15 |
8 | - | S8 - Fuse in relay plate fuse holder | 5 A | - | R36 - Telephone transmitter and receiver unit R86 - Aerial amplifier for mobile telephone | 30 |
9 | - | S9 - Fuse in relay plate fuse holder | 15 A | - | J569 - Brake servo relay | 30 |
No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
10 | - | S10 - Fuse in relay plate fuse holder | 5 A | - | E102 - Headlight range control regulator J431 - Headlight range control, control unit J745 - Cornering light and headlight range control unit V48 - Left headlight range control motor V49 - Right headlight range control motor V319 - Right dynamic cornering light control motor | 15 |
11 | - | S11 - Fuse in relay plate fuse holder | 10 A | - | J234 - Airbag control unit K145 - Front passenger side airbag deactivated warning lamp | 15 |
12 | - | S12 - Fuse in relay plate fuse holder | 10 A | - | T16 - 16-pin connector, black, diagnostic connector | 30 |
13 | - | S13 - Fuse in relay plate fuse holder | 10 A | - | J527 - Steering column electronics control unit | 30 |
14 | - | S14 - Fuse in relay plate fuse holder | 10 A | - | F - Brake light switch | 30 |
15 | - | S15 - Fuse in relay plate fuse holder | 10 A | - | J285 - Control unit in dash panel insert J401 - Navigation system with CD drive control unit J503 - Control unit with display for radio and navigation system | 30 |
16 | - | S16 - Fuse in relay plate fuse holder | 5 A | - | E284 - Garage door operating unit J530 -Garage door operation control unit | 15 |
17 | - | S17 - Fuse in relay plate fuse holder | 10 A | - | G397 - Rain and light detector sensor J446 - Parking aid control unit J502 - Tyre pressure monitor control unit | 30 |
18 | - | S18 - Fuse in relay plate fuse holder | 5 A | - | V318 - Left dynamic cornering light control motor | 15 |
No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
19 | - | S19 - Fuse in relay plate fuse holder | 15 A | - | L22 - Left fog light bulb L23 - Right fog light bulb | 55 |
20 | - | S20 - Fuse in relay plate fuse holder | | - | Vacant | |
21 | - | S21 - Fuse in relay plate fuse holder | | - | Vacant | |
22 | - | S22 - Fuse in relay plate fuse holder | 15 A | - | J386 - Driver door control unit J387 - Front passenger side door control unit | 30 |
23 | - | S223 - Fuse on fuse holder | | - | - Vacant | |
24 | - | S224 - Fuse on fuse holder | 20 A | - | J393 - Convenience system central control unit | 30 |
25 | - | S225 - Fuse on fuse holder | 30 A | - | J126 - Fresh air blower control unit | 30 |
26 | - | S226 - Fuse on fuse holder | 30 A | - | J9 - Heated rear window relay | 30 |
27 | - | S227 - Fuse on fuse holder | 30 A | - | J345 - Trailer detector control unit | 30 |
28 | - | S228 - Fuse on fuse holder | 20 A
30 A
| - | G6 - Fuel system pressurisation pump J538 - Fuel pump control unit G6 - Fuel system pressurisation pump ¹) J538 - Fuel pump control unit ¹) | 87 |
No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
29 | - | S229 - Fuse on fuse holder | | - | Vacant | |
30 | - | S230 - Fuse on fuse holder | 30 A | - | J256 - Convertible roof actuation control unit | 30 |
31 | - | S231 - Fuse on fuse holder | 15 A | - | F4 - Reversing light switch G70 - Air mass meter G399 - Light detector sensor J207 - Starter inhibitor relay J217 - Automatic gearbox control unit N110 - Selector lever lock solenoid T16 - 16-pin connector, black, diagnostic connector Y7 - Automatic anti-dazzle interior mirror | 15 |
32 | - | S232 - Fuse on fuse holder | | - | Vacant | |
33 | - | S233 - Fuse on fuse holder | 20 A | - | U1 - Cigarette lighter | 30 |
34 | - | S234 - Fuse on fuse holder | 20 A | - | U5 - 12 V socket | 30 |
35 | - | S235 - Fuse on fuse holder | 20 A | - | U - socket | 30 |
36 | - | S236 - Fuse on fuse holder | 30 A | - | J519 - Onboard power supply control unit | 75x |
37 | - | S237 - Fuse on fuse holder | 30 A | - | J519 - Onboard power supply control unit V11 - Headlight washer system pump | 75x |
No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
38 | - | S238 - Fuse on fuse holder | 15 A | - | G303 - Interior monitor send and receive module 1 G305 - Interior monitor send and receive module 2 H12 - Alarm horn J393 - Convenience system central control unit | 30 |
39 | - | S239 - Fuse on fuse holder | 20 A | - | J401 - Navigation system with CD drive control unit J503 - Control unit with display for radio and navigation system T8 - 8-connector, black, radio connector III R - Radio R12 - Amplifier | 30 |
40 | - | S240 - Fuse on fuse holder | 25 A | - | H2 - Treble tone horn H7 - Bass tone horn J4 - Dual tone horn relay | 30 |
41 | - | S241 - Fuse on fuse holder | | - | - Vacant | |
42 | - | S242 - Fuse on fuse holder | 25 A | - | J104 - ABS control unit | 30 |
43 | - | S243 - Fuse on fuse holder | 15 A | - | G70 - Air mass meter G212 - Exhaust gas recirculation potentiometer J363 - Current supply relay for Simos control unit J623 - Engine control unit J757 - Engine component current supply relay N18 - Exhaust gas recirculation valve | 15 |
44 | - | S244 - Fuse on fuse holder | 35 A | - | J255 - Climatronic control unit | 30 |