Mercedes-Benz SLK300 Brake Light Switch Replacement at your home or office.

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Brake Light Switch Replacement Estimate for Mercedes-Benz SLK300

Mercedes-Benz SLK300 Brake Light Switch Replacement costs $358 on average.

CarServiceEstimateShop/Dealer Price
2011 Mercedes-Benz SLK300V6-3.0LService typeBrake Light Switch ReplacementEstimate$758.51Shop/Dealer Price$944.84 - $1455.01
2016 Mercedes-Benz SLK300L4-2.0L TurboService typeBrake Light Switch ReplacementEstimate$237.11Shop/Dealer Price$298.12 - $432.26
2010 Mercedes-Benz SLK300V6-3.0LService typeBrake Light Switch ReplacementEstimate$738.51Shop/Dealer Price$924.87 - $1435.06
2009 Mercedes-Benz SLK300V6-3.0LService typeBrake Light Switch ReplacementEstimate$738.51Shop/Dealer Price$924.83 - $1434.99
Show example Mercedes-Benz SLK300 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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Jimmi

27 years of experience
212 reviews
Jimmi
27 years of experience
Mercedes-Benz SLK300 V6-3.0L - Battery - Winter Springs, Florida
Thank you Jimmy for your expertise! Jimmy was on time, and very knowledgeable in resolving the issue with my Mercedes.

Dan

39 years of experience
938 reviews
Dan
39 years of experience
Mercedes-Benz SLK300 V6-3.0L - Headlight Bulb Replacement (Driver Side Low Beam) - Cumming, Georgia
Great Job.......Thanks!!

Alex

22 years of experience
112 reviews
Alex
22 years of experience
Mercedes-Benz SLK300 V6-3.0L - Starter - Mesa, Arizona
Very good he takes pride in his work and loves the chalenge. Had the proper tools to handle the German car. Thank you for now . I will tell people in our park.

Brandon

18 years of experience
318 reviews
Brandon
18 years of experience
Mercedes-Benz SLK300 V6-3.0L - Brake Pads Replacement (Rear) - Morrisville, North Carolina
Had two appointments with Brandon, initially was little worried about this service, but he was excellent and very professional by work. Recommended service from Yourmechanic, very reasonable prices compared to the regular service providers.

Excellent Rating

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Rating Summary
9
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Number of Mercedes-Benz SLK300 services completed
110+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1000+
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