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 .

E38 up to 09/98: 

Disconnect plug connection.

Fig 1: Disconnecting Plug Connection

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Depress brake pedal as far as possible, using pedal support if necessary.

Fig 2: Depressing Brake Pedal

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1. Pull tappet and sleeve forward completely.
2. Press together clips and pull back switch.

Fig 3: Removing switch

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Installation: 

Slowly bring brake pedal into initial position.

E38 from 09/98, E39, E52 and E53: 

Installation: 

On E38 Series RHD cars with ACC from 04/2000 and 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.

Fig 4: Removing Brake Light Switch

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

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.