Mercedes-Benz 400E 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 400E Horn Relay Replacement is $103 with $8 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1993 Mercedes-Benz 400EV8-4.2LService typeHorn Relay ReplacementEstimate$130.07Shop/Dealer Price$151.34 - $175.78
1992 Mercedes-Benz 400EV8-4.2LService typeHorn Relay ReplacementEstimate$110.07Shop/Dealer Price$131.37 - $155.83
Show example Mercedes-Benz 400E 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

(5,626)

Rating Summary
5,236
189
54
28
119
5,236
189
54
28
119

Ryan

5 years of experience
47 reviews
Ryan
5 years of experience
Mercedes-Benz 400E V8-4.2L - Power Steering Pump - Phoenix, Arizona
ryan was good but you service was nasty ,and i will never used you all again. I was a good customer and i spend money with you for over 3 years and i never thought i would get that kind of service..

Raymond

37 years of experience
422 reviews
Raymond
37 years of experience
Mercedes-Benz ML350 V6-3.5L - Brake Pads Replacement (Front, Rear) - Las Vegas, Nevada
Reymond was very professional and very nice. Got the job done per estimated time of work. Will use him again .

Sami

21 years of experience
69 reviews
Sami
21 years of experience
Mercedes-Benz ML320 V6-3.2L - Power Window Switch Replacement (Driver Side Front) - Bethesda, Maryland
Sami was very helpful and knowledgeable!

Gregory

31 years of experience
383 reviews
Gregory
31 years of experience
Mercedes-Benz C300 V6-3.0L - Car Battery Replacement - Littleton, Colorado
Very professional and great work. Been in time and fixed everything quickly. Thank you !!!

Excellent Rating

(5,626)

Rating Summary
5,236
189
54
28
119
5,236
189
54
28
119
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services done by our mechanics
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