Detach electrical connector (2) of stop lamp switch (S9/1)
3
Remove stop lamp switch (S9/1)
Press in catch (arrow) and twist stop lamp switch (S9/1) to the right.
Installation: Pull actuating pin (1) all the way out. Fully depress brake pedal, insert stop lamp switch (S9/1) and twist to the left until the catch engages (arrow). The actuating path is adjusted automatically.