Mercedes-Benz ML320 Horn Relay Replacement Costs

Estimate price near me

Service Location

Customer Ratings

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.

See availability

Customer Ratings

Horn Relay Replacement Service

How much does a Horn Relay Replacement cost?

On average, the cost for a Mercedes-Benz ML320 Horn Relay Replacement is $107 with $12 for parts and $95 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2009 Mercedes-Benz ML320V6-3.0L Turbo Diesel	Service typeHorn Relay Replacement	Estimate$160.55	Shop/Dealer Price$189.44 - $236.74
2007 Mercedes-Benz ML320V6-3.0L Turbo Diesel	Service typeHorn Relay Replacement	Estimate$119.77	Shop/Dealer Price$143.50 - $175.23
2003 Mercedes-Benz ML320V6-3.2L	Service typeHorn Relay Replacement	Estimate$140.55	Shop/Dealer Price$169.47 - $216.79
1998 Mercedes-Benz ML320V6-3.2L	Service typeHorn Relay Replacement	Estimate$118.17	Shop/Dealer Price$141.46 - $171.96
2001 Mercedes-Benz ML320V6-3.2L	Service typeHorn Relay Replacement	Estimate$140.55	Shop/Dealer Price$169.50 - $216.84
2000 Mercedes-Benz ML320V6-3.2L	Service typeHorn Relay Replacement	Estimate$140.55	Shop/Dealer Price$169.47 - $216.79
2008 Mercedes-Benz ML320V6-3.0L Turbo Diesel	Service typeHorn Relay Replacement	Estimate$145.55	Shop/Dealer Price$174.23 - $221.37
2002 Mercedes-Benz ML320V6-3.2L	Service typeHorn Relay Replacement	Estimate$145.55	Shop/Dealer Price$174.89 - $222.51

Show example Mercedes-Benz ML320 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

(125)

Rating Summary

114

7

1

1

2

114

7

1

1

2

SEE REVIEWS NEAR ME

Christopher

9 years of experience

38 reviews

Request Christopher

Christopher

9 years of experience

Request Christopher

by paloma

Mercedes-Benz ML320 V6-3.2L - Valve Cover Gasket - Atlanta, Georgia

Excelent. Very detail oriented. Love it

Hugh

11 years of experience

108 reviews

Hugh

11 years of experience

by Alex

Mercedes-Benz ML320 V6-3.0L Turbo Diesel - Car Battery Replacement - Englewood, Colorado

Got the battery changed in my Mercedes in extremely challenging situation ( no power, no excess to the battery). Hugh go above and beyond to make sure all problems fixed. Very professional and reliable . Would 100% recommend to anyone who needs their auto repaired.

Justin

8 years of experience

372 reviews

Justin

8 years of experience

by Patrick

Mercedes-Benz ML320 V6-3.2L - Crankshaft Position Sensor - Pompano Beach, Florida

Justin was on time, fixed the problem and showed the results of the diagnosis. Very professional.

Robert

20 years of experience

1092 reviews

Robert

20 years of experience

by philip

Mercedes-Benz ML320 V6-3.2L - Brake Pads Replacement (Front) - Erie, Colorado

Professional. Fast. Knows what he is doing. Will use him again

Excellent Rating

(125)

Rating Summary

114

7

1

1

2

114

7

1

1

2

SEE REVIEWS NEAR ME

Recent articles & questions

P2054 OBD-II Trouble Code: Reductant Injector Circuit Low Bank 1 Unit 2

P2054 P2054 trouble code definition Reductant Injector Circuit Low Bank 1 Unit 2 What the P2054 code means This code indicates a problem with the circuit that controls the reductant injector. The terms “circuit low” refers to a lower than...

10 Most Annoying Car Features

Every Every car has its own quirks or drawbacks, whether it’s a sun visor that squeaks or an errant rattle. Most of such idiosyncrasies are either not that intrusive or are features that you’ve become accustomed to over time. There...

P0727 OBD-II Trouble Code: Engine Speed Input Circuit No Signal

P0727 code means that the engine speed input sensor is not properly functioning often due too corroded wires or defective shift solenoids.

Car has been sitting

Hello. If you have leaks, it is best to determine what fluids are leaking. Engine coolant usually has a green or orange color, depending on the type of coolant used. It is usually sweet-smelling, if it is relatively clean. Engine...

should seals be replaced while in there? camshaft and crankshaft seals as well as timing cover seal.

Hi there: Anytime you remove the timing cover you should always replace the seals; as they are easy to access since "you're already in there". In order to give you further information about your belts, we need to know the...

Can I drive over 65 mph with traction control on? Or should I turn traction control off?

Traction control helps with the stability of the vehicle in all conditions and works with the ABS system to ensure that the vehicle can stop fast and keep the vehicle in a safe condition on any roadway condition. I recommend...

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 (844) 997-3624 · hi@yourmechanic.com