Brake Intervention Sensor / Switch: Service and Repair

Brake Lamp Sensor

• After removing, the brake lamp sensor can be re-used.

• The brake light sensor programs itself. It is not necessary to calibrate it after installation.

Removing

- Remove the driver side storage compartment - 1 to 3 -.






- Disconnect the electrical connector to the footwell vent - C -.






- Remove the footwell vents - A-B -.

- Disconnect the electrical connector to the brake light sensor.






• If possible, leave the brake pedal stop - 17 - installed; it could break the mount for the brake lamp sensor - 10 - if the brake pedal is released too quickly.

- Press the brake light sensor plunger - 10 - all the way in using a finger.

- With the plunger pressed in, rotate the colored piece on the brake light sensor left as far as the stop to release the switch.

• The plunger must remained pressed in when releasing the brake light sensor.

- Let go of the brake light sensor plunger after releasing.

- Insert a release tool for brake light switch (T40168) between the brake light sensor plunger and the brake pedal.

The cone on the tool must face in the direction of the driver seat. The opening on the tool must align with the bulge on the brake light sensor.

- Press the release tool for brake light switch (T40168) against the brake lamp sensor. This releases the three retaining tabs on the brake lamp sensor.

- Remove the brake lamp sensor from the mount.

Installing

• The brake pedal stop - 17 - must always be installed, there is the danger that the brake lamp sensor mount - 10 - could brake when the brake pedal is unlocked.






• When installing the brake lamp sensor, the plunger adjusts itself automatically.

• The brake pedal must remain in end position during installation and must not be moved.

• The brake pedal must be connected with the brake booster.

- Insert the brake lamp sensor in the mount on the brake pedal and press it in lightly.

• The brake lamp sensor must engage audibly with all three retaining tabs.

• The switch must not be rotated in the mount on the brake pedal.

• When installing the brake lamp sensor, the plunger adjusts itself automatically.

- Rotate the colored piece on the brake lamp sensor to the right as far as the stop to secure the switch.

- Connect the electrical connector to the brake lamp sensor.

- Install the footwell vents - A-B -.






- Tighten the footwell vent screw - A -.

- Connect the electrical connector to the footwell vent - C -.






- Install the driver side storage compartment - 1 to 3 -.

Check the brake lamp sensor function after installing it and before driving.