Mercedes-Benz R500 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 Mercedes-Benz R500 Brake Light Switch Replacement is $328 with $233 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2006 Mercedes-Benz R500V8-5.0LService typeBrake Light Switch ReplacementEstimate$581.81Shop/Dealer Price$716.02 - $1079.26
2007 Mercedes-Benz R500V8-5.0LService typeBrake Light Switch ReplacementEstimate$561.81Shop/Dealer Price$696.05 - $1059.31
Show example Mercedes-Benz R500 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 Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(10)

Rating Summary
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Christopher

16 years of experience
54 reviews
Christopher
16 years of experience
Mercedes-Benz R500 V8-5.0L - Power Steering Fluid Service - Houston, Texas
He was on time, friendly, efficient and knows what he is doing. Good guy, great mechanic! Definitely keeping him in mind.

Jamie

26 years of experience
30 reviews
Jamie
26 years of experience
Mercedes-Benz R500 V8-5.0L - Starter - North Charleston, South Carolina
Fantastic! Prompt and courteous. Completed job competently, reinstalled my battery and carpet without complaint and cleaned up the area. I would recommend him to anyone who needs service.

Richard

11 years of experience
450 reviews
Richard
11 years of experience
Mercedes-Benz R500 V8-5.0L - Tune-up - Clinton, Maryland
Wonderfu, he was informative, skewered all questions and was very professional. I will definitely be using him again.

Richard

11 years of experience
450 reviews
Richard
11 years of experience
Mercedes-Benz R500 V8-5.0L - Brake Pads Replacement (Front) - Clinton, Maryland
Wonderfuj! Richard was very professional and courteous and explained everything he had done upon completion of the job. I was very satisfied as I was the first time I use Richard.

Excellent Rating

(10)

Rating Summary
9
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1
Number of Mercedes-Benz R500 services completed
110+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

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