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BMW 340i 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 BMW 340i Horn Relay Replacement is $117 with $12 for parts and $105 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2017 BMW 340iL6-3.0L TurboService typeHorn Relay ReplacementEstimate$149.09Shop/Dealer Price$163.52 - $187.89
2016 BMW 340iL6-3.0L TurboService typeHorn Relay ReplacementEstimate$129.09Shop/Dealer Price$149.85 - $178.97
Show example BMW 340i 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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Ruben

35 years of experience
83 reviews
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Ruben
35 years of experience
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by Linda
BMW 325i L6-2.5L - Pre-purchase Car Inspection - Brandon, Florida
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BMW X3 L6-3.0L Turbo - Brake Pads Replacement (Front, Rear) - San Mateo, California
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23 years of experience
903 reviews
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23 years of experience
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by Murray
BMW 325i L6-2.5L - Turn signal light is not working - Hayward, California
I had to get some parts-light bulb. Time will tell if that works.

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31 years of experience
641 reviews
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31 years of experience
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by Kelli
BMW 318ti L4-1.9L - Oil Change - Los Gatos, California
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(6,828)
Rating Summary
6,369
206
60
45
148
6,369
206
60
45
148
Number of BMW services completed
75108+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

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