Mercedes-Benz E400 Horn Relay Replacement at your home or office.

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Horn Relay Replacement Service

How much does a Horn Relay Replacement cost?

On average, the cost for a Mercedes-Benz E400 Horn Relay Replacement is $107 with $12 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2016 Mercedes-Benz E400V6-3.0L TurboService typeHorn Relay ReplacementEstimate$139.77Shop/Dealer Price$163.47 - $195.18
2015 Mercedes-Benz E400V6-3.0L TurboService typeHorn Relay ReplacementEstimate$119.77Shop/Dealer Price$143.50 - $175.23
2018 Mercedes-Benz E400V6-3.0L TurboService typeHorn Relay ReplacementEstimate$119.09Shop/Dealer Price$135.13 - $160.72
2017 Mercedes-Benz E400V6-3.0L TurboService typeHorn Relay ReplacementEstimate$119.77Shop/Dealer Price$135.96 - $162.04
2014 Mercedes-Benz E400V6-3.5L HybridService typeHorn Relay ReplacementEstimate$119.77Shop/Dealer Price$143.52 - $175.28
2015 Mercedes-Benz E400V6-3.5L HybridService typeHorn Relay ReplacementEstimate$119.77Shop/Dealer Price$143.50 - $175.23
2013 Mercedes-Benz E400V6-3.5L HybridService typeHorn Relay ReplacementEstimate$124.77Shop/Dealer Price$148.26 - $179.81
Show example Mercedes-Benz E400 Horn Relay Replacement prices

What is the Horn Relay all about?

The horn relay attaches a low power circuit to an electromagnet, which operates a mechanical switch. That switch either opens or closes a circuit that carries a higher power, which causes the horn to sound. There is a low power circuit running to your car’s steering wheel, and when it is activated, the horn sounds. When you release the horn button, the low power circuit is opened and the power level of the relay drops, silencing the horn.

Keep in mind:

  • You are required by law to have a working horn in your car.
  • Your car horn is a safety mechanism that allows you to warn other drivers of potential danger.

How it's done:

  • The vehicle battery is disconnected
  • The horn relay position is identified
  • The new horn relay and wiring are installed
  • The battery is reconnected
  • The repair is verified and the vehicle horn is tested for proper operation

Our recommendation:

If your horn isn’t working properly, you have no way of alerting another driver that he or she is about to collide with your vehicle, and you have no way of telling other drivers of any dangers further down the road. Our expert mechanics can diagnose any problems with your car horn, and if necessary, can replace the horn relay for you.

What common symptoms indicate you may need to replace the Horn Relay?

  • You press the horn button and nothing happens
  • You press the horn button but all you hear is a click
  • Horn only works sometimes

How important is this service?

Your horn is your first line of defense when it comes to problems in traffic. With an inoperable horn relay, your horn won’t work at all. If your horn isn’t working properly, get one of our expert mechanics to immediately correct the problem.

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Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(5)

Rating Summary
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Jeffrey

16 years of experience
102 reviews
Jeffrey
16 years of experience
Mercedes-Benz E400 V6-3.0L Turbo - Oil Change - Tampa, Florida
Jeffrey was courteous and very knowledgeable about the vehicle

Benji

22 years of experience
277 reviews
Benji
22 years of experience
Mercedes-Benz E400 V6-3.0L Turbo - Pre-purchase Car Inspection - Scottsdale, Arizona
Mr. Tolbert was on time. I was not present for his inspection, but the dealership told me that he was very professional.

Josh

16 years of experience
78 reviews
Josh
16 years of experience
Mercedes-Benz E400 V6-3.0L Turbo - Pre-purchase Car Inspection - Naples, Florida
Awesome inspector , very detail oriented and caring. Thanks

Dawit

15 years of experience
29 reviews
Dawit
15 years of experience
Mercedes-Benz E400 V6-3.0L Turbo - Oil Change - Washington, District of Columbia
Dawits was punctual and expedient in the service of my vehicle. I will definitely request him again.

Excellent Rating

(5)

Rating Summary
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5
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Number of Mercedes-Benz E400 services completed
55+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

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