| J271 | Main relay |
| N80 | Activated charcoal filter solenoid valve 1 |
| N205 | Camshaft control valve 1 |
| N318 | Exhaust camshaft control valve 1 |
| N428 | Valve for oil pressure control |
| SB | Fuse holder B |
| SB3 | Fuse 3 on fuse holder B |
| SB4 | Fuse 4 on fuse holder B |
| T2cy | 2-pin connector |
| T2cz | 2-pin connector |
| T2da | 2-pin connector |
| T2db | 2-pin connector |
| T14h | 14-pin connector |
| T14i | 14-pin connector |
| TML | Coupling point in engine compartment, left |
| D141 | Connection (5V) in engine prewiring harness |
| D180 | Connection (87a), in engine compartment wiring harness |
| D182 | Connection 3 (87a) in engine compartment wiring harness |
| * | see applicable current flow diagram for engine |
| *2 | Cross section depends on equipment |
| F | Brake light switch |
| GX7 | Lambda probe 1 after catalytic converter |
| GX10 | Lambda probe 1 before catalytic converter |
| 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 |
| SB | Fuse holder B |
| SB6 | Fuse 6 on fuse holder B |
| SB7 | Fuse 7 on fuse holder B |
| SB8 | Fuse 8 on fuse holder B |
| SB9 | Fuse 9 on fuse holder B |
| T3ce | 3-pin connector |
| T4af | 4-pin connector |
| T4ag | 4-pin connector |
| T4ah | 4-pin connector |
| T4ai | 4-pin connector |
| T14h | 14-pin connector |
| T14i | 14-pin connector |
| TML | Coupling point in engine compartment, left |
| V188 | Charge air cooling pump |
| D25 | Positive connection (15), in engine prewiring harness |
| D173 | Connection (87), in engine prewiring harness |
| D181 | Connection 2 (87a) in engine compartment wiring harness |
| * | see applicable current flow diagram for engine |
| J217 | Automatic gearbox control unit |
| J533 | Data bus diagnostic interface |
| J538 | Fuel pump control unit |
| J743 | Mechatronic unit for dual clutch gearbox |
| SB | Fuse holder B |
| SB10 | Fuse 10 on fuse holder B |
| SB13 | Fuse 13 on fuse holder B |
| T5ai | 5-pin connector |
| T17g | 17-pin connector |
| T17o | 17-pin connector |
| T20 | 20-pin connector |
| T25 | 25-pin connector |
| T52 | 52-pin connector |
| TIUL | Coupling point in interior, below left |
| U7 | Connection (87), in automatic gearbox wiring harness |
| U19 | Positive connection 2 (30a) in automatic gearbox wiring harness |
| * | see applicable current flow diagram for engine |
| *2 | Only models with dual clutch gearbox |
| *3 | Only models with automatic gearbox |
| *4 | Only models with no start/stop system |
| EX1 | Rotary light switch |
| EX21 | Heater and air conditioning controls |
| E313 | Selector lever |
| E538 | Electromechanical parking brake button |
| F189 | Tiptronic switch |
| G823 | Air humidity, rain and light sensor |
| J527 | Steering column electronics control unit |
| SC | Fuse holder C |
| SC5 | Fuse 5 on fuse holder C |
| SC7 | Fuse 7 on fuse holder C |
| SC8 | Fuse 8 on fuse holder C |
| SC9 | Fuse 9 on fuse holder C |
| T3ae | 3-pin connector |
| T10h | 10-pin connector |
| T10s | 10-pin connector |
| T12am | 12-pin connector |
| T16 | 16-pin connector |
| T16r | 16-pin connector |
| T20c | 20-pin connector |
| U31 | Diagnostic connection |
| A2 | Positive connection (15), in dash panel wiring harness |
| A164 | Positive connection 2 (30a) in dash panel wiring harness |
| * | Only models with dual clutch gearbox |
| *2 | Only models with 6-speed automatic gearbox and Tiptronic |
| J126 | Fresh air blower control unit |
| J387 | Front passenger door control unit |
| J685 | Display unit for front information display and operating unit control unit |
| J794 | Control unit 1 for information electronics |
| SC | Fuse holder C |
| SC10 | Fuse 10 on fuse holder C |
| SC12 | Fuse 12 on fuse holder C |
| SC14 | Fuse 14 on fuse holder C |
| SC31 | Fuse 31 on fuse holder C |
| SC39 | Fuse 39 on fuse holder C |
| T4dc | 4-pin connector |
| T8aq | 8-pin connector |
| T10kr | 10-pin connector |
| T12ai | 12-pin connector |
| T19 | 19-pin connector |
| T19a | 19-pin connector |
| T20b | 20-pin connector |
| T27a | 27-pin connector |
| T27c | 27-pin connector |
| TTHR | Coupling point on rear right door |
| TTVR | Coupling point on front right door |
| V27 | Rear right window regulator motor |
| A167 | Positive connection 3 (30a) in dash panel wiring harness |
| B150 | Positive connection 2 (30a), in interior wiring harness |
| B169 | Positive connection 1 (30), in interior wiring harness |
| * | see applicable current flow diagram for convenience system |
| *2 | According to equipment |
| EX5 | Interior mirror |
| J329 | Terminal 15 voltage supply relay |
| J807 | Relay for power sockets |
| SC | Fuse holder C |
| SC40 | Fuse 40 on fuse holder C |
| T8bg | 8-pin connector |
| U1 | Cigarette lighter |
| 44 | Earth point, lower part of left A-pillar |
| 238 | Earth connection 1, in interior wiring harness |
| 286 | Earth connection 8, in interior wiring harness |
| A38 | Positive connection 2 (15a) in dash panel wiring harness |
| B680 | Connection (electric socket), in interior wiring harness |
| * | Factory fitted with power supply from terminal 15 |
| *2 | Power supply via terminal 30 possible |
| J234 | Airbag control unit |
| J428 | Adaptive cruise control unit |
| J446 | Parking aid control unit |
| J791 | Park assist steering control unit |
| MX1 | Front left headlight |
| MX2 | Front right headlight |
| R242 | Front camera for driver assist systems |
| SC | Fuse holder C |
| SC32 | Fuse 32 on fuse holder C |
| SC33 | Fuse 33 on fuse holder C |
| T8ay | 8-pin connector |
| T10d | 10-pin connector |
| T10e | 10-pin connector |
| T12ar | 12-pin connector |
| T16m | 16-pin connector |
| T17d | 17-pin connector |
| T17l | 17-pin connector |
| T26i | 26-pin connector |
| T90 | 90-pin connector |
| TIUL | Coupling point in interior, below left |
| A199 | Positive connection 4 (15a) in dash panel wiring harness |
| C12 | Positive connection 1, in headlight wiring harness |
| T1 | Positive connection 1, in airbag wiring harness |
| * | According to equipment |
| *2 | Only models with reversing camera system |
| *3 | Cross section depends on equipment |
| EX14 | Headlight range control and instrument illumination regulator |
| E234 | Rear lid handle release button |
| J344 | Right gas discharge bulb control unit |
| R189 | Reversing camera |
| SC | Fuse holder C |
| SC34 | Fuse 34 on fuse holder C |
| SC35 | Fuse 35 on fuse holder C |
| SC36 | Fuse 36 on fuse holder C |
| SC47 | Fuse 47 on fuse holder C |
| SC49 | Fuse 49 on fuse holder C |
| T4bt | 4-pin connector |
| T4d | 4-pin connector |
| T4u | 4-pin connector |
| T7a | 7-pin connector |
| T10l | 10-pin connector |
| T10n | 10-pin connector |
| T14k | 14-pin connector |
| T17f | 17-pin connector |
| T17n | 17-pin connector |
| THK | Coupling point on rear lid |
| TIUL | Coupling point in interior, below left |
| V12 | Rear window wiper motor |
| A20 | Positive connection (15a), in dash panel wiring harness |
| Q155 | Connection (30a), in rear lid wiring harness |
| * | Only models with reversing camera system |
| J245 | Sliding sunroof adjustment control unit |
| J386 | Driver door control unit |
| J764 | Control unit for electronic steering column lock |
| J965 | Interface for entry and start system |
| KX2 | Dash panel insert |
| SC | Fuse holder C |
| SC15 | Fuse 15 on fuse holder C |
| SC17 | Fuse 17 on fuse holder C |
| SC18 | Fuse 18 on fuse holder C |
| SC19 | Fuse 19 on fuse holder C |
| SC23 | Fuse 23 on fuse holder C |
| SC24 | Fuse 24 on fuse holder C |
| SC25 | Fuse 25 on fuse holder C |
| T6cp | 6-pin connector |
| T6cr | 6-pin connector |
| T10kq | 10-pin connector |
| T10le | 10-pin connector |
| T16s | 16-pin connector |
| T18 | 18-pin connector |
| T19b | 19-pin connector |
| T19c | 19-pin connector |
| T20a | 20-pin connector |
| T27 | 27-pin connector |
| T27b | 27-pin connector |
| T32b | 32-pin connector |
| TH | Coupling point for roof |
| TTHL | Coupling point on rear left door |
| TTVL | Coupling point on front left door |
| V26 | Rear left window regulator motor |
| B111 | Positive connection 1 (30a), in interior wiring harness |
| * | see applicable current flow diagram for convenience system |
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