| A | Battery |
| J367 | Battery monitor control unit |
| J500 | Power steering 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 |
| T2a | 2-pin connector |
| T4af | 4-pin connector |
| T4ag | 4-pin connector |
| T4ah | 4-pin connector |
| T4ai | 4-pin connector |
| 12 | Earth point, on left in engine compartment |
| 221 | Earth connection (engine earth), in engine wiring harness |
| 306 | Earth connection (ignition coils), in engine prewiring harness |
| 652 | Earth point, engine and gearbox earth |
| 672 | Earth point 2, on front of left longitudinal member |
| * | on the battery |
| *2 | Cross section depends on equipment |
| H2 | Treble horn |
| N280 | Air conditioner compressor regulating valve |
| T2am | 2-pin connector |
| T2bx | 2-pin connector |
| T2ds | 2-pin connector |
| T3ce | 3-pin connector |
| T4dd | 4-pin connector |
| T4de | 4-pin connector |
| T14h | 14-pin connector |
| T14i | 14-pin connector |
| TML | Coupling point in engine compartment, left |
| V11 | Headlight washer system pump |
| V188 | Charge air cooling pump |
| 85 | Earth connection 1, in engine compartment wiring harness |
| 306 | Earth connection (ignition coils), in engine prewiring harness |
| 673 | Earth point 3, on front of left longitudinal member |
| * | see applicable current flow diagram for engine |
| *2 | see applicable current flow diagram |
| F125 | Multifunction switch |
| J217 | Automatic gearbox control unit |
| J743 | Mechatronic unit for dual clutch gearbox |
| MX3 | Left tail light |
| NX1 | Gearbox |
| T4n | 4-pin connector |
| T10q | 10-pin connector |
| T25 | 25-pin connector |
| T52 | 52-pin connector |
| 102 | Earth connection, in gearbox wiring harness |
| 150 | Earth connection 2 in automatic gearbox wiring harness |
| 179 | Earth connection, in left headlight wiring harness |
| 197 | Earth connection 4, in rear wiring harness |
| 729 | Earth point, on left rear wheel housing |
| * | Only models with dual clutch gearbox 0AM |
| EX3 | Hazard warning light switch |
| EX21 | Heater and air conditioning controls |
| E313 | Selector lever |
| E378 | Starter button |
| E538 | Electromechanical parking brake button |
| E693 | Start/Stop operation button |
| F189 | Tiptronic switch |
| J965 | Interface for entry and start system |
| T3ai | 3-pin connector |
| T4cl | 4-pin connector |
| T6 | 6-pin connector |
| T10ks | 10-pin connector |
| T10q | 10-pin connector |
| T10s | 10-pin connector |
| T12am | 12-pin connector |
| T20c | 20-pin connector |
| T32b | 32-pin connector |
| U1 | Cigarette lighter |
| 278 | Earth connection 4, in interior wiring harness |
| 687 | Earth point 1, on centre tunnel |
| * | Only models with dual clutch gearbox |
| *2 | Only models with 6-speed automatic gearbox and Tiptronic |
| *3 | Only models with start/stop system |
| J386 | Driver door control unit |
| J519 | Onboard supply control unit |
| J525 | Digital sound package control unit |
| R134 | Driver side aerial for entry and start system |
| T4dw | 4-pin connector |
| T4dx | 4-pin connector |
| T8bd | 8-pin connector |
| T8be | 8-pin connector |
| T10kq | 10-pin connector |
| T19b | 19-pin connector |
| T19c | 19-pin connector |
| T20a | 20-pin connector |
| T27 | 27-pin connector |
| T27b | 27-pin connector |
| T38 | 38-pin connector |
| T73a | 73-pin connector |
| T73c | 73-pin connector |
| TGVL | Coupling point on front left exterior door handle |
| TTHL | Coupling point on rear left door |
| TTVL | Coupling point on front left door |
| VX21 | Driver door lock unit |
| VX23 | Rear left door lock unit |
| V26 | Rear left window regulator motor |
| 44 | Earth point, lower part of left A-pillar |
| 267 | Earth connection 2, in drive side door wiring harness |
| 279 | Earth connection 5, in interior wiring harness |
| 286 | Earth connection 8, in interior wiring harness |
| 684 | Earth point on front of left side member |
| * | see applicable current flow diagram for convenience system |
| *2 | Cross section depends on equipment |
| E176 | Driver seat lumbar support adjustment switch |
| E470 | Driver seat adjustment operating unit |
| E492 | Tyre Pressure Loss Indicator button |
| J533 | Data bus diagnostic interface |
| KX2 | Dash panel insert |
| T2d | 2-pin connector |
| T2eu | 2-pin connector |
| T2ev | 2-pin connector |
| T4av | 4-pin connector |
| T4l | 4-pin connector |
| T6ah | 6-pin connector |
| T6cn | 6-pin connector |
| T10a | 10-pin connector |
| T10kz | 10-pin connector |
| T10w | 10-pin connector |
| T17d | 17-pin connector |
| T17l | 17-pin connector |
| T18 | 18-pin connector |
| T20 | 20-pin connector |
| TIUL | Coupling point in interior, below left |
| TSVL | Coupling point for front left seat |
| Z7 | Heated backrest for driver seat |
| 108 | Earth connection 2, in front left wiring harness |
| 238 | Earth connection 1, in interior wiring harness |
| 288 | Earth connection (HRC), in dash panel wiring harness |
| TV7 | Terminal 31 wiring junction |
| * | According to equipment |
| *2 | Cross section depends on equipment |
| EX1 | Rotary light switch |
| EX5 | Interior mirror |
| EX30 | Switch module 2 in centre console |
| G823 | Air humidity, rain and light sensor |
| J329 | Terminal 15 voltage supply relay |
| J446 | Parking aid control unit |
| J527 | Steering column electronics control unit |
| J764 | Control unit for electronic steering column lock |
| J791 | Park assist steering control unit |
| J807 | Relay for power sockets |
| K268 | Front left footwell light |
| SC | Fuse holder C |
| T2fi | 2-pin connector |
| T3ae | 3-pin connector |
| T6b | 6-pin connector |
| T8ap | 8-pin connector |
| T10h | 10-pin connector |
| T10kz | 10-pin connector |
| T16r | 16-pin connector |
| T16s | 16-pin connector |
| T26i | 26-pin connector |
| WX1 | Front interior light |
| Z113 | Windscreen heater for front sensors |
| 238 | Earth connection 1, in interior wiring harness |
| 277 | Earth connection 3, in interior wiring harness |
| * | According to equipment |
| EX14 | Headlight range control and instrument illumination regulator |
| F147 | Driver vanity mirror contact switch |
| F148 | Front passenger vanity mirror contact switch |
| J126 | Fresh air blower control unit |
| J245 | Sliding sunroof adjustment control unit |
| R242 | Front camera for driver assist systems |
| T2e | 2-pin connector |
| T2ew | 2-pin connector |
| T2ex | 2-pin connector |
| T2l | 2-pin connector |
| T2x | 2-pin connector |
| T4aw | 4-pin connector |
| T4dc | 4-pin connector |
| T4m | 4-pin connector |
| T5ac | 5-pin connector |
| T6cp | 6-pin connector |
| T6cr | 6-pin connector |
| T7a | 7-pin connector |
| T10b | 10-pin connector |
| T10le | 10-pin connector |
| T10x | 10-pin connector |
| T12ar | 12-pin connector |
| T16 | 16-pin connector |
| T16j | 16-pin connector |
| T16k | 16-pin connector |
| TH | Coupling point for roof |
| TSVR | Coupling point for front right seat |
| U31 | Diagnostic connection |
| WX2 | Rear interior light |
| Z9 | Heated backrest for front passenger seat |
| 277 | Earth connection 3, in interior wiring harness |
| 347 | Earth connection, in roof wiring harness |
| 638 | Earth point, on right A-pillar |
| 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 |
| K269 | Front right footwell light |
| R135 | Passenger side aerial for entry and start system |
| R189 | Reversing camera |
| T2ce | 2-pin connector |
| T2f | 2-pin connector |
| T2fi | 2-pin connector |
| T4dy | 4-pin connector |
| T4dz | 4-pin connector |
| T8ao | 8-pin connector |
| T8aq | 8-pin connector |
| T8bb | 8-pin connector |
| T10kr | 10-pin connector |
| T12a | 12-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 |
| TGVR | Coupling point on front right exterior door handle |
| TTHR | Coupling point on rear right door |
| TTVR | Coupling point on front right door |
| VX22 | Front passenger door lock unit |
| VX24 | Rear right door lock unit |
| V27 | Rear right window regulator motor |
| W6 | Glove compartment light |
| 43 | Earth point, lower part of right A-pillar |
| 249 | Earth connection 2, in interior wiring harness |
| 256 | Earth connection 2, in radio wiring harness |
| 268 | Earth connection 2, in front passenger side door wiring harness |
| B607 | Connection 3, in interior wiring harness |
| E234 | Rear lid handle release button |
| MX5 | Left tail light 2 |
| MX6 | Right tail light 2 |
| M25 | High-level brake light bulb |
| R177 | Amplitude modulation (AM) frequency filter |
| T2ap | 2-pin connector |
| T2cd | 2-pin connector |
| T4ab | 4-pin connector |
| T4d | 4-pin connector |
| T4u | 4-pin connector |
| T5c | 5-pin connector |
| T5e | 5-pin connector |
| T10d | 10-pin connector |
| T10l | 10-pin connector |
| T10n | 10-pin connector |
| T10p | 10-pin connector |
| THK | Coupling point on rear lid |
| V12 | Rear window wiper motor |
| VX25 | Rear lid lock unit |
| 98 | Earth connection, in rear lid wiring harness |
| 285 | Earth connection 7, in interior wiring harness |
| 612 | Earth point, centre on rear lid |
| 682 | Earth point 2, in rear right side panel |
| * | Only models with no reversing camera system |
| *2 | Only models with reversing camera system |
| G6 | Fuel system pressurisation pump |
| J538 | Fuel pump control unit |
| MX4 | Right tail light |
| T2ce | 2-pin connector |
| T2cf | 2-pin connector |
| T4o | 4-pin connector |
| T5ai | 5-pin connector |
| T5b | 5-pin connector |
| T10la | 10-pin connector |
| T10lf | 10-pin connector |
| THRR | Coupling point in luggage compartment, right |
| X4 | Left number plate light |
| X5 | Right number plate light |
| 333 | Earth connection 5, in rear wiring harness |
| 470 | Earth connection 1, in rear bumper wiring harness |
| 480 | Earth connection, in fuel tank wiring harness |
| 730 | Earth point 1, on right rear wheel housing |
| * | Only models with 1.4l engine |
| *2 | Only models with 1.6l engine |
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