Mercedes-Benz GL550 Brake Light Switch Replacement at your home or office.

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Brake Light Switch Replacement Estimate for Mercedes-Benz GL550

Mercedes-Benz GL550 Brake Light Switch Replacement costs $275 on average.

CarServiceEstimateShop/Dealer Price
2009 Mercedes-Benz GL550V8-5.5LService typeBrake Light Switch ReplacementEstimate$748.51Shop/Dealer Price$937.64 - $1449.91
2013 Mercedes-Benz GL550V8-4.7L TurboService typeBrake Light Switch ReplacementEstimate$142.93Shop/Dealer Price$171.08 - $227.60
2015 Mercedes-Benz GL550V8-4.7L TurboService typeBrake Light Switch ReplacementEstimate$142.93Shop/Dealer Price$171.08 - $227.60
2014 Mercedes-Benz GL550V8-4.7L TurboService typeBrake Light Switch ReplacementEstimate$142.93Shop/Dealer Price$171.06 - $227.56
2016 Mercedes-Benz GL550V8-4.7L TurboService typeBrake Light Switch ReplacementEstimate$142.93Shop/Dealer Price$171.10 - $227.63
2011 Mercedes-Benz GL550V8-5.5LService typeBrake Light Switch ReplacementEstimate$738.51Shop/Dealer Price$924.87 - $1435.06
2008 Mercedes-Benz GL550V8-5.5LService typeBrake Light Switch ReplacementEstimate$551.81Shop/Dealer Price$690.01 - $1056.24
2012 Mercedes-Benz GL550V8-5.5LService typeBrake Light Switch ReplacementEstimate$743.51Shop/Dealer Price$930.29 - $1440.78
Show example Mercedes-Benz GL550 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 Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

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Rating Summary
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Jason

32 years of experience
418 reviews
Jason
32 years of experience
Mercedes-Benz GL550 V8-5.5L - Car Starter Repair - Phoenix, Arizona
Great to have had Jason work on my GL550, he was very knowledgeable and accurate when taking care of the issue with the starter. Will work with Jason in the future for sure.

Evan

22 years of experience
6 reviews
Evan
22 years of experience
Mercedes-Benz GL550 V8-4.6L Turbo - Brake Rotor/Disc Replacement (Rear) - Pittsburgh, Pennsylvania
Very competent and professional. Saved me unnecessary costs. Mercedes dealership said I needed both front and back rotors. Evan inspected and told me they were fine. I was ready to replace both rotors but ended up doing just the rear ( which also could have been deferred). Also the cost of the job was much lower than what the dealership had quoted.

Devin

10 years of experience
20 reviews
Devin
10 years of experience
Mercedes-Benz GL550 V8-5.5L - Pre-purchase Car Inspection - Charlotte, North Carolina
Devin performed a pre-purchase inspection on a Mercedes GL550 I was considering buying. He looked over the vehicle with extraordinary detail and was able to explain any issues he found during the inspection very clearly. He is also very punctual and showed up to the booked appointment on time. I highly recommend Devin if you are considering purchasing a used car in the Charlottle area. He is very knowledgeable about cars, is passionate about what he does and looks out for the customer.

Jay

23 years of experience
67 reviews
Jay
23 years of experience
Mercedes-Benz GL550 V8-5.5L - Battery - Chicago, Illinois
Awesome service quick with his work!!! Def recommend his work!

Excellent Rating

(30)

Rating Summary
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Number of Mercedes-Benz GL550 services completed
330+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1000+
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