Mercedes-Benz ML430 Horn Relay Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(32)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(32)

Horn Relay Replacement Service

How much does a Horn Relay Replacement cost?

On average, the cost for a Mercedes-Benz ML430 Horn Relay Replacement is $118 with $23 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2000 Mercedes-Benz ML430V8-4.3LService typeHorn Relay ReplacementEstimate$160.55Shop/Dealer Price$189.44 - $236.74
1999 Mercedes-Benz ML430V8-4.3LService typeHorn Relay ReplacementEstimate$140.55Shop/Dealer Price$169.47 - $216.79
2001 Mercedes-Benz ML430V8-4.3LService typeHorn Relay ReplacementEstimate$140.55Shop/Dealer Price$169.47 - $216.79
Show example Mercedes-Benz ML430 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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(32)

Rating Summary
32
0
0
0
0
32
0
0
0
0

Anthony

28 years of experience
113 reviews
Anthony
28 years of experience
Mercedes-Benz ML430 V8-4.3L - Car is hard to shift - Shoreham, New York
Excellent mechanic ,lot of knowledge

Ben

41 years of experience
1436 reviews
Ben
41 years of experience
Mercedes-Benz ML430 V8-4.3L - Serpentine/Drive Belt - Houston, Texas
My experience with Ben as my mechanic was very professional and very helpful. Ben's years of experience exceeded my expectations and have me a comfort that my car will be fixed properly. Ben was able to not only fix my car in short order but also provided me with a list of items needing repair. I asked questions about my car and Ben was very complete to provide me with not an understanding of the needed repairs but why they are necessary to keep my car operating in good condition. Ben is a value to your business and I will recommend him to all my friends and collegues. Thank you for having Ben on your team!

Whitney

39 years of experience
783 reviews
Whitney
39 years of experience
Mercedes-Benz ML430 V8-4.3L - Pre-purchase Car Inspection - San Jose, California

Stephen

3 years of experience
17 reviews
Stephen
3 years of experience
Mercedes-Benz ML430 V8-4.3L - Tie Rod End Replacement (Front Left Inner, Front Right Inner) - Silver Spring, Maryland
Great job

Excellent Rating

(32)

Rating Summary
32
0
0
0
0
32
0
0
0
0
Number of Mercedes-Benz ML430 services completed
352+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

How to Become a Drag Racer
For For auto enthusiasts, few things are as glorified as drag racing. From movies to video games to ESPN showcases, drag racing is seen as a symbol of fast cars and a love of driving. While it may seem like...
How to Get Smog Technician Certified in Maine
Automotive technician jobs include smog certified emissions inspectors. In Maine, you can obtain ASE certification to become one.
P0417 OBD-II Trouble Code: Secondary Air Injection System Switching Valve B Circuit Shorted
Trouble code P0417 means the PCM has detected an issue with the secondary air injection system, often due to a faulty air pump.

Engine misfires and ticking sound on startup, coasting, and acceleration.

The noise in the engine may be from running with the ignition timing too far advanced from a malfunctioning mass air flow sensor. The mass air flow sensor could be giving false readings, which will cause the computer to compensate...

Why do my interior lights dim when stopping and car intermittently shuts off at stop light. 2006 Chevrolet Trailblazer

Hello. This can be caused by a number of things. Most of the time if this only occurs when coming to a stop it is because the computer is not maintaining a high enough idle. This can occur because of...

Was wondering how much a transmission would roughly cost for my 2008 mercury mariner 2.3L I-4 engine 4cylin.

Hi Jacob. A refurbished & rebuilt transmission for these vehicles can cost roughly $1,500 in most cases, plus about $600 or more for installation. I would be wary based on the fact that the mechanic did not provide you with...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com