Mercedes-Benz 300E 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 300E Horn Relay Replacement is $107 with $12 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1993 Mercedes-Benz 300EL6-3.2LService typeHorn Relay ReplacementEstimate$177.37Shop/Dealer Price$210.47 - $270.38
1989 Mercedes-Benz 300EL6-3.0LService typeHorn Relay ReplacementEstimate$119.77Shop/Dealer Price$143.50 - $175.23
1986 Mercedes-Benz 300EL6-3.0LService typeHorn Relay ReplacementEstimate$119.77Shop/Dealer Price$143.50 - $175.23
1990 Mercedes-Benz 300EL6-3.0LService typeHorn Relay ReplacementEstimate$119.77Shop/Dealer Price$143.46 - $175.16
1990 Mercedes-Benz 300EL6-2.6LService typeHorn Relay ReplacementEstimate$119.77Shop/Dealer Price$143.52 - $175.28
1987 Mercedes-Benz 300EL6-3.0LService typeHorn Relay ReplacementEstimate$119.77Shop/Dealer Price$143.50 - $175.23
1992 Mercedes-Benz 300EL6-3.0LService typeHorn Relay ReplacementEstimate$124.77Shop/Dealer Price$148.26 - $179.81
1993 Mercedes-Benz 300EL6-3.0LService typeHorn Relay ReplacementEstimate$124.77Shop/Dealer Price$148.91 - $180.95
Show example Mercedes-Benz 300E 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

(16)

Rating Summary
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James

12 years of experience
233 reviews
James
12 years of experience
Mercedes-Benz 300E L6-3.2L - Battery - San Francisco, California
Was given a "fixed price" for two services, one was completed but the other was not because the price for egr valve jumped significantly. In conversations with company reps I was not satisfied with their explanation of "fixed price" being only in regards to service charge as the website does not state that, it stated that there will be "no surprises, fixed price for services requested..." I feel there was false advertising. the battery was installed as part two of the service before being informed of the price hike so I wound up paying for that and not getting the main service completed. had the higher price been given initially I would not have booked the service at all.

Terry

30 years of experience
223 reviews
Terry
30 years of experience
Mercedes-Benz 300E L6-3.0L - Pre-purchase Car Inspection - Chandler, Arizona
Told me what was wrong with my car, end recommended a way to save a lot of money. Really appreciate it.

Peter

43 years of experience
1321 reviews
Peter
43 years of experience
Mercedes-Benz 300E L6-3.0L - Inspection / Diagnostics - Phoenix, Arizona
What a great guy! Arrived early, very friendly and courteous. Would definately request him again. Very satisfied with the "Your Mechanic" in general.

Tony

15 years of experience
36 reviews
Tony
15 years of experience
Mercedes-Benz 300E L6-3.2L - Alternator - Saint Louis, Missouri
Tony's a life saver!!!

Excellent Rating

(16)

Rating Summary
14
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Number of Mercedes-Benz 300E services completed
176+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

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