BMW 128i Brake Light Switch Replacement at your home or office.

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Brake Light Switch Replacement Estimate for BMW 128i

BMW 128i Brake Light Switch Replacement costs $125 on average.

CarServiceEstimateShop/Dealer Price
2013 BMW 128iL6-3.0LService typeBrake Light Switch ReplacementEstimate$162.51Shop/Dealer Price$205.14 - $277.91
2012 BMW 128iL6-3.0LService typeBrake Light Switch ReplacementEstimate$152.51Shop/Dealer Price$192.37 - $263.06
2009 BMW 128iL6-3.0LService typeBrake Light Switch ReplacementEstimate$152.51Shop/Dealer Price$192.37 - $263.06
2008 BMW 128iL6-3.0LService typeBrake Light Switch ReplacementEstimate$152.51Shop/Dealer Price$192.33 - $262.99
2011 BMW 128iL6-3.0LService typeBrake Light Switch ReplacementEstimate$152.51Shop/Dealer Price$192.40 - $263.11
2010 BMW 128iL6-3.0LService typeBrake Light Switch ReplacementEstimate$152.51Shop/Dealer Price$192.37 - $263.06
Show example BMW 128i Brake Light Switch Replacement prices

Brake Light Switch Replacement Service

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

(85)

Rating Summary
79
4
1
0
1
79
4
1
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1

Darnell

19 years of experience
20 reviews
Darnell
19 years of experience
BMW 128i L6-3.0L - Alternator - Santa Monica, California
Darnell was awesome. Super knowledge and a pleasure to interact with.

Kenneth

20 years of experience
725 reviews
Kenneth
20 years of experience
BMW 128i L6-3.0L - Ignition Coil - Los Angeles, California
Kenneth was amazing! Fixed my BMW 128i and went above and beyond to make sure everything was taken care of. Appreciate his help.

MICHAEL

33 years of experience
184 reviews
MICHAEL
33 years of experience
BMW 128i L6-3.0L - Brake Pads Replacement (Front, Rear) - Philadelphia, Pennsylvania
Mike was professional, knew what he was doing, and engaging. Kept me up to date on everything that he was doing.

James

31 years of experience
624 reviews
James
31 years of experience
BMW 128i L6-3.0L - Pre-purchase Car Inspection - Santa Ana, California
James conducted a pre-purchase inspection on a BMW 1 series I was considering to buy. The inspection took place at the car dealer location and James arrived just before the requested time. James was very professional all along and conducted a detailed inspection of the car during over 45 minutes which also included a test drive. All the key points of the car were verified thoroughly using appropriate equipment when required. Smaller details were also inspected and tested rigorously prior to recording ion the inspection report. From the discussion we had, it's clear that James is exceptionally knowledgeable and has an extensive experience in auto maintenance. I am extremely satisfied with the service James provided and I would definitely recommend his services to my friends. It was money well spent and I ended up buying the car with confidence. Thank you James!

Excellent Rating

(85)

Rating Summary
79
4
1
0
1
79
4
1
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1
Number of BMW 128i services completed
935+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
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