Mercedes-Benz C300 Brake Light Switch Replacement Costs

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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 C300 Brake Light Switch Replacement is $219 with $79 for parts and $140 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2016 Mercedes-Benz C300L4-2.0L Turbo	Service typeBrake Light Switch Replacement	Estimate$312.12	Shop/Dealer Price$357.70 - $480.27
2018 Mercedes-Benz C300L4-2.0L Turbo	Service typeBrake Light Switch Replacement	Estimate$303.11	Shop/Dealer Price$344.22 - $463.44
2009 Mercedes-Benz C300V6-3.0L	Service typeBrake Light Switch Replacement	Estimate$303.11	Shop/Dealer Price$345.64 - $465.92
2013 Mercedes-Benz C300V6-3.5L	Service typeBrake Light Switch Replacement	Estimate$303.11	Shop/Dealer Price$345.64 - $465.92
2017 Mercedes-Benz C300L4-2.0L Turbo	Service typeBrake Light Switch Replacement	Estimate$303.11	Shop/Dealer Price$345.72 - $466.06
2014 Mercedes-Benz C300V6-3.5L	Service typeBrake Light Switch Replacement	Estimate$303.11	Shop/Dealer Price$345.89 - $466.35
2008 Mercedes-Benz C300V6-3.0L	Service typeBrake Light Switch Replacement	Estimate$303.11	Shop/Dealer Price$345.67 - $465.97
2010 Mercedes-Benz C300V6-3.0L	Service typeBrake Light Switch Replacement	Estimate$303.11	Shop/Dealer Price$345.64 - $465.92

Show example Mercedes-Benz C300 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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Travis

16 years of experience

165 reviews

Travis

16 years of experience

by Sumitc

Mercedes-Benz C300 V6-3.0L - Windshield Washer Pump Replacement (Front) - Plano, Texas

Travis was knowledgeable and completed the work efficiently and properly.

Attila

20 years of experience

1104 reviews

Attila

20 years of experience

by Emmanuel

Mercedes-Benz C300 V6-3.0L - Serpentine/Drive Belt - Jersey City, New Jersey

Attila was great with my car. He did things that other mechanics wouldn’t have done to ensure that my car is running smoothly with no issue. I would definitely have Atilla work on my car again.

Tinashe

14 years of experience

781 reviews

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Tinashe

14 years of experience

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by Michael

Mercedes-Benz C300 V6-3.0L - Alternator - Smyrna, Georgia

Very friendly, knowledgeable, and fast! Had me running again in less than 2 hours!

Derrick

21 years of experience

109 reviews

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Derrick

21 years of experience

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by Christopher

Mercedes-Benz C300 V6-3.0L - Serpentine/Drive Belt Replacement - New York, New York

Derrick did a great job replacing my serpentine belt to my Mercedes as well as replacing the pulley. When preparing to fix my car Derrick already concluded from his knowledge that something I had to be broken for my belt to break. It was the pulley. Derrick had no problem taking me to the auto store to pick up the needed part. He made sure it was correct before leaving & after a few my car was back up and running. Thanks for your help and keeping me at ease with the frustrations of a broken down car.

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