BMW 745Li 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 745Li Horn Relay Replacement is $119 with $24 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2005 BMW 745LiV8-4.4LService typeHorn Relay ReplacementEstimate$168.19Shop/Dealer Price$198.99 - $252.02
2002 BMW 745LiV8-4.4LService typeHorn Relay ReplacementEstimate$142.95Shop/Dealer Price$172.47 - $221.59
2004 BMW 745LiV8-4.4LService typeHorn Relay ReplacementEstimate$148.19Shop/Dealer Price$179.02 - $232.07
2003 BMW 745LiV8-4.4LService typeHorn Relay ReplacementEstimate$148.19Shop/Dealer Price$178.98 - $232.00
Show example BMW 745Li 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 BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(37)

Rating Summary
36
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1
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36
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Chuck

10 years of experience
347 reviews
Chuck
10 years of experience
BMW 745Li V8-4.4L - Battery - Dallas, Texas
Chuck was on time and extremely nice.

William

25 years of experience
35 reviews
William
25 years of experience
BMW 745Li V8-4.4L - Loss of power - Lodi, California
Very informative, honest and highly knowable.

Tyrone

19 years of experience
105 reviews
Tyrone
19 years of experience
BMW 745Li V8-4.4L - Car is not starting - Houston, Texas
Very nice, explained everything I needed for my vehicle. I will definitely use this service again!

Charles

17 years of experience
176 reviews
Charles
17 years of experience
BMW 745Li V8-4.4L - Valve Cover Gasket - Washington, District of Columbia
Charles was excellent! Very professional and courteous! He did a great job!

Excellent Rating

(37)

Rating Summary
36
0
0
1
0
36
0
0
1
0
Number of BMW 745Li services completed
407+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

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