Mercedes-Benz ML350 Main Relay (Computer/Fuel System) 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

Main Relay (Computer/Fuel System) Replacement Service

How much does a Main Relay (Computer/Fuel System) Replacement cost?

On average, the cost for a Mercedes-Benz ML350 Main Relay (Computer/Fuel System) Replacement is $111 with $16 for parts and $95 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2010 Mercedes-Benz ML350V6-3.5L	Service typeMain Relay (Computer/Fuel System) Replacement	Estimate$168.15	Shop/Dealer Price$198.94 - $251.94
2013 Mercedes-Benz ML350V6-3.5L	Service typeMain Relay (Computer/Fuel System) Replacement	Estimate$166.11	Shop/Dealer Price$201.42 - $267.91
2004 Mercedes-Benz ML350V6-3.7L	Service typeMain Relay (Computer/Fuel System) Replacement	Estimate$148.15	Shop/Dealer Price$178.97 - $231.99
2006 Mercedes-Benz ML350V6-3.5L	Service typeMain Relay (Computer/Fuel System) Replacement	Estimate$148.15	Shop/Dealer Price$178.93 - $231.92
2012 Mercedes-Benz ML350V6-3.0L Turbo Diesel	Service typeMain Relay (Computer/Fuel System) Replacement	Estimate$166.11	Shop/Dealer Price$201.45 - $267.96
2011 Mercedes-Benz ML350V6-3.0L Turbo Diesel	Service typeMain Relay (Computer/Fuel System) Replacement	Estimate$166.11	Shop/Dealer Price$201.42 - $267.91
2015 Mercedes-Benz ML350V6-3.0L Turbo Diesel	Service typeMain Relay (Computer/Fuel System) Replacement	Estimate$171.11	Shop/Dealer Price$206.18 - $272.49
2014 Mercedes-Benz ML350V6-3.0L Turbo Diesel	Service typeMain Relay (Computer/Fuel System) Replacement	Estimate$171.11	Shop/Dealer Price$206.84 - $273.63

Show example Mercedes-Benz ML350 Main Relay (Computer/Fuel System) Replacement prices

What is the Main Relay (Computer/Fuel System) all about?

Relays play a significant role in controlling the various electronic components of your vehicle, and there are several that can be termed a “main” relay. However, when you speak of the vehicle’s main relay, you’re referring to the one that controls the computer and the fuel system. It’s the first thing to engage when you turn the ignition switch. Without an operable main relay, your car won’t run. On most makes and models, the main relay will be located in one of the underhood fuse boxes, but this varies from one manufacturer to another.

Keep in mind:

The main relay is absolutely essential to vehicle operation.
The relay is not inspected during routine maintenance and is designed to last for many years before needing replacement.
Many other problems have similar symptoms, so professional diagnosis is important.

How it's done:

The vehicle relay main panel is opened
The defective main relay is removed
The new main relay is installed
The vehicle main relay panel is closed
The vehicle is started and checked for operation

Our recommendation:

Without an operational main relay, your car will not operate. However, electrical problems can be complex, and the failure of the main relay could possibly be a symptom of an underlying problem. It’s important that our expert mechanics diagnose both the condition of the relay and any inherent causes that contributed to the relay’s premature failure.

What common symptoms indicate you may need to replace the Main Relay (Computer/Fuel System)?

Fuel pump does not engage when ignition is turned to “on”
Vehicle will not start
Vehicle will not start when engine is hot

How important is this service?

There are few components as crucial to vehicle operation as your main relay. It operates both the car’s computer and the fuel system. If you experience any problems similar to the symptoms above, we recommend having your vehicle diagnosed immediately.

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

(408)

Rating Summary

387

8

3

1

9

387

8

3

1

9

SEE REVIEWS NEAR ME

Tien

23 years of experience

903 reviews

Tien

23 years of experience

by Erin

Mercedes-Benz ML350 V6-3.5L - Brake Pads Replacement (Front) - Oakland, California

Very honest and helpful.

Ben

41 years of experience

1416 reviews

Ben

41 years of experience

by Obi

Mercedes-Benz ML350 V6-3.5L - Electric Problems - Cypress, Texas

Excellent work as always

Kevin

6 years of experience

93 reviews

Kevin

6 years of experience

by Ann

Mercedes-Benz ML350 V6-3.5L - Oil Change - Saint Cloud, Florida

Kevin arrived a few minutes early for the appointment and immediately got started on the job. He was professional, personable and very knowledgeable.

Matthew

33 years of experience

1222 reviews

Request Matthew

Matthew

33 years of experience

Request Matthew

by Reginald

Mercedes-Benz ML350 V6-3.7L - Oxygen Sensor Replacement (Front/Upper/Upstream) - Newport News, Virginia

Very professional and informative

Excellent Rating

(408)

Rating Summary

387

8

3

1

9

387

8

3

1

9

SEE REVIEWS NEAR ME

Recent articles & questions

How to Make Car Switches Last Longer

Every Every feature in your car is controlled by a switch or button. Most are actively controlled, such as the power windows and power door locks, by means of pressing a button. Systems that are actively controlled include: The rear...

5 Essential Things to Know About Gasoline

You You already know how much we depend on gasoline in the US. Even though there has been an increase in electric and diesel cars, gasoline is still the most used fuel in the US. However, there are a few...

How to Renew Your Car Registration in South Carolina

Having Having your car registered with the South Carolina DMV is vital to driving legally in this state. There are a variety of different fines that you will be subjected to if you fail to make this happen. Once you...

Brakes are squeaking

Yes, brake pads are no longer made of asbestos based on the possibility of exposure and possible development of mesothelioma. They have been replaced by several different types of material (https://www.yourmechanic.com/article/what-are-brake-pads-made-of). Common materials are organic, metallic, and ceramic. Organic are...

My car is shaking.

Hello. the Diagnostic Trouble Codes would have to be retrieved to begin the diagnosis. Unless the shop retrieved all codes and performed a diagnosis and tested the coils (there are six of them on your engine), what they have told...

Vehicle shakes during acceleration

Among the remaining possibilities are defective motor mounts, struts, and engine operating condition (the engine needs to be looked at with a scope under load and a compression test might be helpful, too). If there is no problem with the...

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