Mercedes-Benz 600SEL Electronic Control 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

(5,730)

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

(5,730)

Electronic Control Relay Replacement Service

How much does a Electronic Control Relay Replacement cost?

On average, the cost for a Mercedes-Benz 600SEL Electronic Control Relay Replacement is $141 with $46 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1992 Mercedes-Benz 600SELV12-6.0LService typeElectronic Control Relay ReplacementEstimate$207.35Shop/Dealer Price$247.94 - $330.34
1993 Mercedes-Benz 600SELV12-6.0LService typeElectronic Control Relay ReplacementEstimate$187.35Shop/Dealer Price$227.97 - $310.39
Show example Mercedes-Benz 600SEL Electronic Control Relay Replacement prices

What is the Electronic Control Relay all about?

A wide range of electronic systems must work properly in order for the vehicle to operate. That means there is a need for several different controllers to ensure proper operation. One of the most important is the electronic control relay. You might be more familiar with the term “main relay” because of its role in vehicle performance.

The electronic control relay operates the fuel pump and sends power to the engine’s injectors. Without the main relay, fuel will not flow from the tank to the engine, and your injectors will not atomize gasoline into the combustion chamber. In short, your car wouldn’t run. Electronic control relays are subject to failure from a number of different problems, including outright failure, heat damage, cracked solder and more.

Keep in mind:

  • The electronic control relay may not operate, or may operate intermittently depending on the source of the trouble.
  • A number of other problems can masquerade as a main relay failure, so it’s vital that you have one of our expert mechanics diagnose the issue.

How it's done:

  • The electronic control relay is located and accessed then verified it needs replaced
  • The defective relay is removed from the vehicle
  • The new electronic relay is installed
  • The components that the electronic relay operates are checked for proper operation
  • The vehicle is road tested for proper operation

Our recommendation:

Traditional turnkey ignition the relay will click three times during the starting process. If you listen closely, you should hear a single click when you turn the ignition to “on”. You should hear another when the Check Engine light turns off. Finally, there should be a third click when you turn the key to the “start” position. If you do not hear a click at any of these three points, there may be a problem with the electronic control relay. Have one of our expert mechanics diagnose and replace the relay if required.

What common symptoms indicate you may need to replace the Electronic Control Relay?

  • Engine doesn’t start, especially in cold weather
  • Engine may not start a few minutes after turning it off
  • No sound from the fuel pump when the ignition key is turned to “On”

How important is this service?

Given the fact that the electronic control relay powers the fuel pump and your fuel injectors, it is essential to replace a faulty one. However, many other problems can present similar symptoms, so it’s very important to have the issue diagnosed by one of our expert mechanics.

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

(5,730)

Rating Summary
5,332
192
54
29
123
5,332
192
54
29
123

Brikk

18 years of experience
389 reviews
Brikk
18 years of experience
Mercedes-Benz C250 L4-1.8L Turbo - Power door locks are not working - Charlotte, North Carolina
Brikk is always prompt, professional, and very knowledgeable.

Christopher

20 years of experience
318 reviews
Christopher
20 years of experience
Mercedes-Benz C250 L4-1.8L Turbo - ABS Speed Sensor Replacement (Driver Side Front, Passenger Side Front) - Brandon, Florida
Christopher was very professional and got to work right away and finished the job in a timely manner.

Juan

12 years of experience
55 reviews
Juan
12 years of experience
Mercedes-Benz CLK320 V6-3.2L - Water Pump - Vallejo, California
This is my second time receiving outstanding customer service and car repair from Juan. He is number one and I highly recommend his expertise.

Simon

27 years of experience
309 reviews
Simon
27 years of experience
Mercedes-Benz CLK350 V6-3.5L - Car is not starting - Hyattsville, Maryland
Simon listened to my concerns and addressed them and told me what I needed. Great service and nice person. Did not replace part that I thought I needed and told me what was REALLY wrong with my car instead of lying. Have never had problems with the company anyway and this only adds to the reasons why I will continue to use them!

Excellent Rating

(5,730)

Rating Summary
5,332
192
54
29
123
5,332
192
54
29
123
Number of Mercedes-Benz services completed
63030+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

How Does Traction Control Work?
Traction control is a car safety feature that prevents wheels from spinning on low-grip surfaces. Electric sensors in your car make the system work.
Child Seat Safety Laws in Nevada
In In the state of Nevada, seat belt use is mandated by law. So are child seats. Nevada doesn’t just consider child safety seats to be a good idea – they’re absolutely required. These laws are in place for the...
How to Use a Ratchet on a Car
Ratchets are hand-held mechanic tools used with sockets to remove or tighten bolts or lug nuts. Ratchets use leverage in a free-spinning motion.

How heavy of a trailer can I tow?

The towing capacity is varied by how your truck is equipped. In a Ram 1500, a V6 is good to about 3750 lbs and a V8 is good to about 5000 lbs. For the Ram 2500 and Ram 3500, it...

Today my oil pressure gauge jumped to high. It still runs fine, no awkward sound or anything, but as soon as I turn the key to accelerate, it shoots back to normal range

Hi, thanks for writing in. With the key on engine off, your gauge should read low pressure. The oil sender near oil filter should be disconnected to see if the gauge now reads zero pressure. Now ground the wire you...

My Toyota Camry 2012 LE the passenger site airbag stay off what should I do?

Hello, thank you for writing in. The passenger side airbags are activated by the switch beneath the seat. It is weight sensitive, and only activates when there is over 50 lbs sitting in the seat. If the air bag is...

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