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BMW 745Li 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 745Li Brake Light Switch Replacement is $190 with $50 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2003 BMW 745LiV8-4.4LService typeBrake Light Switch ReplacementEstimate$255.88Shop/Dealer Price$287.40 - $367.79
2002 BMW 745LiV8-4.4LService typeBrake Light Switch ReplacementEstimate$246.87Shop/Dealer Price$275.30 - $353.37
2005 BMW 745LiV8-4.4LService typeBrake Light Switch ReplacementEstimate$246.87Shop/Dealer Price$275.34 - $353.44
2004 BMW 745LiV8-4.4LService typeBrake Light Switch ReplacementEstimate$246.87Shop/Dealer Price$275.34 - $353.44
Show example BMW 745Li 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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Number of BMW 745Li services completed
418+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform
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Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(38)
Rating Summary
37
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Michael

17 years of experience
606 reviews
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Michael
17 years of experience
Request Michael
by Arther
BMW 745Li V8-4.4L - Car starts and then dies - Smyrna, Georgia
If I could give Michael 10 stars I would. Michael started off by contacting me the morning of my appointment to get a full understanding of what was going on. This made me feel as he wanted to be prepared for the job. My BMW was not starting and as soon as he got there he started it and already had an idea of what was going on, but he didn’t stop there he inspected my car and gave me a full report and more advice than the BMW shop I took it to months ago. He was very knowledgeable and answered all my questions. He did not rush or try to push unnecessary sevices on me. He explained what I needed, why I needed it and when I should get it done by. This is the kind of mechanic you want working on your car and I have a BMW 745Li and we all know the issues these cars can have. He will definitely be getting my business.

Tabitha

18 years of experience
379 reviews
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Tabitha
18 years of experience
Request Tabitha
by Najmah
BMW 745Li V8-4.4L - Oil/Fluid Leak - San Diego, California
Very reliable comes to location very fast knows her work and a fantastic mechanic yes!!!!!!!

Michael

17 years of experience
606 reviews
Request Michael
Michael
17 years of experience
Request Michael
by Arther
BMW 745Li V8-4.4L - Alternator - Smyrna, Georgia
This guy is the Best!!!!!!!! True knowledge and a professional Bmw 745li, this guy knew stuff even bmw dealer could not explain. He breaks it down simple for you to understand and give recommendations on what to do and what not to waste money on. Now that’s the definition of your mechanic..

Peter

44 years of experience
1397 reviews
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Peter
44 years of experience
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by Steven
BMW 745Li V8-4.4L - Oil/Fluid Leak - Phoenix, Arizona
Very knowledgeable and experienced.

Excellent Rating

(38)
Rating Summary
37
0
0
1
0
37
0
0
1
0
Number of BMW 745Li services completed
418+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

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