61 31 310 Replacing brake light switch

Necessary Preliminary Tasks: 

• Remove trim panel for pedal assembly. Refer to 51 45 185 REMOVING AND INSTALLING/REPLACING TRIM FOR PEDAL ASSEMBLY .

E53: 

Installation: 

On all cars with DSC:

A gap of 0.7 mm must be adjusted between brake pedal and brake light switch.

If this gap fails to guarantee problem-free operation, the gap must be reduced to 0.6 mm.

Unfasten plug connection (1) and disconnect.

Pull brake light switch (2) in direction of arrow out of brake light switch holder (4).

Fig 1: Removing Brake Light Switch From Holder

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

• Press brake pedal (3) to floor.
• Slide brake light switch (2) as far as it will go into brake light switch holder (4).
• Grip brake light switch holder (4), slowly return brake pedal (3) to starting position and pull back to stop.

Press brake pedal (3).

Press catches together and unclip brake light switch holder (4) from brake pedal (3).