Headlight switch (does not apply to bi-halogen headlights)
- E1 - headlight switch
- E23 - switch for front fog lights and rear fog light
- J277 - relay
- J519 - central control unit for onboard electrical system
- J745 - control unit for adaptive headlights and headlight range control
- L9 - incandescent lamp for illuminating the headlight switch
- T6c - 6-pin plug connector on the central control unit of the electrical on-board network (black)
- T17a - 17-pin plug connector on the headlight switch
- 367 - Ground connection 2 in main wiring harness
- B274 - connection to the positive terminal (58L) in the main wiring harness
- B316 - connection to positive terminal 2 (30A) in the main wiring harness
- B340 - connection 1 (586) in the main wiring harness
- B346 - connection 1 (75) in the main wiring harness
- B543 - connection to the positive pole (58R) in the main wiring harness
* - for vehicles with headlight washers
** - for vehicles with daytime running lights
*** - and vehicles with front fog lights/static adaptive headlights