Brake Light

2009 BMW 750Li 4.4 3SECTION Brake Light

As from "Terminal R ON", the brake lights can be switched on by activating the brake light switch.

The Car Access System powers the brake light switch with 5 V voltage. The footwell module evaluates the status of the brake pedal switch and actuates the brake light. The brake light switch provides two levels.

The signal of the brake pedal switch is also used for the beam throw adjustment (LWR).

NOTE: The brake light can also be activated by a braking assistant function such as ACC.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.