Mercedes-Benz S450 Brake Light Switch Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(13)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(13)

Brake Light Switch Replacement Service

How much does a Brake Light Switch Replacement cost?

On average, the cost for a Mercedes-Benz S450 Brake Light Switch Replacement is $137 with $42 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2018 Mercedes-Benz S450V6-3.0L TurboService typeBrake Light Switch ReplacementEstimate$272.11Shop/Dealer Price$321.39 - $446.73
2010 Mercedes-Benz S450V8-4.7LService typeBrake Light Switch ReplacementEstimate$179.87Shop/Dealer Price$211.11 - $282.28
2011 Mercedes-Benz S450V8-4.7LService typeBrake Light Switch ReplacementEstimate$179.87Shop/Dealer Price$211.11 - $282.28
2008 Mercedes-Benz S450V8-4.7LService typeBrake Light Switch ReplacementEstimate$179.87Shop/Dealer Price$211.09 - $282.24
2009 Mercedes-Benz S450V8-4.7LService typeBrake Light Switch ReplacementEstimate$179.87Shop/Dealer Price$211.12 - $282.31
Show example Mercedes-Benz S450 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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(13)

Rating Summary
11
0
0
1
1
11
0
0
1
1

Kenneth

20 years of experience
775 reviews
Kenneth
20 years of experience
Mercedes-Benz S450 V6-3.0L Turbo - Pre-purchase Car Inspection - Los Angeles, California
Kenneth is very friendly and easy to work with.

Ricardo

14 years of experience
339 reviews
Ricardo
14 years of experience
Mercedes-Benz S450 V6-3.0L Turbo - Pre-purchase Car Inspection - Culver City, California
Ricardo is very trustworthy, responsible, on time for the service , and fast reply.

Herman

13 years of experience
86 reviews
Herman
13 years of experience
Mercedes-Benz CLS500 V8-5.0L - Brake Light Switch - Miami, Florida
Very good will def use Herman again

Khoa

20 years of experience
402 reviews
Khoa
20 years of experience
Mercedes-Benz SL500 V8-5.0L - Brake Light Switch - San Mateo, California
Professional and friendky!

Excellent Rating

(13)

Rating Summary
11
0
0
1
1
11
0
0
1
1
Number of Mercedes-Benz Brake Light Switch Replacement services completed
143+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

Disabled Driver Laws and Permits in South Dakota
In In South Dakota, you can obtain disability placards and plates if you are disabled. These will allow you to park in special spots, and also allow you other privileges under the law, assuming that you fill out the appropriate...
How to Choose a Car Insurance Company
Getting auto insurance is not one of the most fun aspects of owning a car, but it is one of the most important. Auto insurance is incredibly vital, as it can save you large amounts of money and legal trouble...
What Does the Winter Mode Indicator Light Mean?
The winter mode indicator lets you now when you're driving on winter mode. If it's flashing, an error with the system has been detected.

Car has parasitic battery drain.

I would have a technician such as one from YourMechanic do a parasitic drain test (https://www.yourmechanic.com/services/battery-will-not-hold-a-charge-inspection) on the battery. This is where you connect a amp meter to the battery and pull out fuses until the drain stops to determine...

Will my car shut off when it's low on oil or coolant?

The signals you get in your car simply warn you to turn the engine off when the oil and coolant are too low, but will not shut the car off on it's own. When the oil pressure switch detects low...

My forester recently threw a p0028 code. Replaced the intake solenoid and oil pressure switch but the idle is still rough.

If you used thicker oil than vehicle specified then this can cause problems with the intake variable valve lift system. If you used the wrong oi then change oil and filter again with the proper viscosity oil. If the correct...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com