BMW 135is Brake Light Switch Replacement at your home or office.

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Brake Light Switch Replacement Service

How much does a Brake Light Switch Replacement cost?

On average, the cost for a BMW 135is Brake Light Switch Replacement is $153 with $58 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2013 BMW 135isL6-3.0L TurboService typeBrake Light Switch ReplacementEstimate$231.31Shop/Dealer Price$277.89 - $378.26
Show example BMW 135is Brake Light Switch Replacement prices

What is the brake light switch and how does it work?

The brake light switch is a mechanical switch activated when you press the brake pedal. The switch has a plunger in it that contacts a lever in the brake pedal assembly. As that plunger is depressed when you push on the brake pedal, the contacts in the brake light switch closed and voltage flows to the brake lights — turning them on. The brake light switch is also in the circuit that controls the cruise control disengagement and the shift interlock safety feature installed on all newer cars. Failure of the brake light switch occurs due to wear on the internal electrical contacts in the switch, poor switch terminal connections, maladjustment of the switch, or damage to the brake pedal assembly.

When to consider replacing the brake light switch?

  • No brake lights. If depressing the brake pedal does not cause any of the brake lights to illuminate, the continuity of the switch will be tested. If only one brake light is out, then the issue is not the switch but rather the bulb, bulb socket or brake light circuit integrity.
  • Unable to shift out of park. The brake light switch is also wired into the shift interlock mechanism. If you are unable to shift out of park, with your foot on the brake, check to see if the brake lights will illuminate as you push the pedal. If they do not illuminate, failure of the brake light switch may be the cause of the no shift.
  • Intermittent operation of the brake lights or late operation. The brake light switch has to be in the proper position, and work consistently if the brake lights are to come on the instant you press the brake pedal. The switch can sometimes require adjustment, or the contacts may degrade, causing inconsistent operation of the switch.

How do mechanics replace the brake light switch?

  • The switch is first tested using a multimeter, including the terminal contacts to the switch, to determine if it is faulty. If the switch is functioning, the entire circuit must be tested to determine the cause of no brake lights.
  • Should the switch be judged defective, the switch is unthreaded from the mounting boss near the brake pedal assembly.
  • The new switch is threaded in and locked with an appropriate locknut once the new switch is properly adjusted.
  • The operation of the switch is tested to ensure instant illumination of the brake lights upon pressing the brake pedal.

Is it safe to drive with a brake light switch problem?

No. Should the brake light switch have failed, it is unsafe to drive the vehicle because drivers behind you will have no indication that you are slowing, intend to slow, or are stopped. Always address a failure of this type promptly to ensure your safety while driving.

When replacing the brake light switch keep in mind:

  • The mechanic will test the brake light switch directly to ensure that the issue is not elsewhere in the brake light circuit.
  • Occasionally, the issue is a maladjusted switch or a loose contact, and the mechanic can resolve the problem without switch replacement.

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Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(4)

Rating Summary
4
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Michael

25 years of experience
187 reviews
Michael
25 years of experience
BMW 528i L6-3.0L - Brake Light Switch - Las Vegas, Nevada
Very Knowledgable

Matthew

12 years of experience
183 reviews
Matthew
12 years of experience
BMW X5 L6-3.0L - Brake Light Switch - Indianapolis, Indiana
Very professional, informative, and efficient.

Tien

23 years of experience
903 reviews
Tien
23 years of experience
BMW 535i L6-3.5L - Brake Light Switch - Oakland, California
Tien has rapidly become one of my favorite people. During the first inspection I discovered he had worked on my car years ago at a BMW specialty shop. How cool to find someone familiar with my 30 year old vehicle. He always shows up, on time, prepared, friendly and follows through with his paperwork. I am very happy to have reconnected with Tien.

Christian

12 years of experience
40 reviews
Christian
12 years of experience
BMW 528i L6-2.8L - Brake Light Switch - Thousand Oaks, California
Christian was extremely helpful. He came early and worked very quick to replace my brake switch. As well as some small things he helped fix with no extra charge. My car is very old so there is a few things that I need to get fixed and he pointed them out for next time. He has a lot of knowledge about foreign cars and I wouldn't hesitate to book with him next time.

Excellent Rating

(4)

Rating Summary
4
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4
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Number of BMW Brake Light Switch Replacement services completed
44+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

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