Removal and installation the pedal assembly and brake light switch sensor (Mercedes-Benz M-Class W163)

Note: See also Section Removal and installation the master cylinder.

1. The details of the pedal assembly installation are shown in the illustration, to which all references in the text refer.

2. Remove the cover on the left under the instrument panel and the left front carpet.

3. Remove the hose connecting the brake fluid reservoir to the master cylinder (11).



4. Disconnect the hydraulic line (17) from the master cylinder (11).

5. Disconnect the electrical wiring from the brake light switch sensor.

6. If equipped, disconnect the electrical wiring from the clutch pedal sensor.

7. Disconnect the return spring from the foot brake pedal.

8. Remove the lock (22) and remove the carrier bracket assembly from the brake pedal.

[Article was borrowed from the website: www.MercedesMan.ru]

9. Loosen the nuts (24) securing the pedal assembly holder to the engine compartment bulkhead.

10. Remove the upper pedal mounting bolt (23).

11. Pull the pedal assembly back, remove its support plate from the mounting studs, then lift it out of the footwell at an angle.

12. If necessary, disassemble the pedal assembly.

13. Installation is carried out in reverse order.

Brake Light Switch Sensor

1. The installation details of the brake light switch sensor are shown in the illustration, to which all references in the text refer.

2. Remove the cover on the left under the instrument panel.

3. Disconnect the electrical wiring from the brake light switch sensor (S9).



4. Release the lock (2) and remove the sensor switch (S9).

5. Pull the plunger (1) of the sensor outwards until it stops, press the pedal (24) and install the sensor-switch in its regular place, making sure that the lock (2) is securely latched; the sensor-switch is adjusted automatically.

6. Further installation is carried out in the reverse order of dismantling the components.