Mercedes-Benz GLC43 AMG 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 GLC43 AMG Electronic Control Relay Replacement is $141 with $46 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2017 Mercedes-Benz GLC43 AMGV6-3.0L TurboService typeElectronic Control Relay ReplacementEstimate$207.35Shop/Dealer Price$240.44 - $317.21
2019 Mercedes-Benz GLC43 AMGV6-3.0L TurboService typeElectronic Control Relay ReplacementEstimate$187.35Shop/Dealer Price$220.46 - $297.24
2018 Mercedes-Benz GLC43 AMGV6-3.0L TurboService typeElectronic Control Relay ReplacementEstimate$187.35Shop/Dealer Price$220.46 - $297.24
Show example Mercedes-Benz GLC43 AMG 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

Faraz

22 years of experience
84 reviews
Faraz
22 years of experience
Mercedes-Benz GLC43 AMG V6-3.0L Turbo - Oil Change - Union City, California
Faraz was very professional. Explained everything before he started and when he completed the job. His work was clean and meticulous. Thanks again Faraz!

Raymond

37 years of experience
447 reviews
Raymond
37 years of experience
Mercedes-Benz 560SL V8-5.6L - Fuel Filter - Las Vegas, Nevada
Great Mechanic. I will use him again.

Pardeep

21 years of experience
1121 reviews
Pardeep
21 years of experience
Mercedes-Benz C320 V6-3.2L - Oil Change - Mountain View, California
Great mechanic, he definently knows what he is doing when it comes to European cars. Highly would reecomend to my friends and peers.

Matthew

33 years of experience
1279 reviews
Matthew
33 years of experience
Mercedes-Benz SLK230 L4-2.3L Turbo - Car is not starting - Newport News, Virginia
Excellent. Arrived on time, knows (and loves) older cars, was pleasant and courteous.

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 to Get the Best Price for Your Trade-In Car
When When you are shopping for a new car, there is a good chance you have a vehicle that you need to get rid of before you can purchase the new one. You can either sell the car privately (https://www.yourmechanic.com/article/how-to-get-the-highest-resale-value-for-your-car)...
P0724 OBD-II Trouble Code: Torque Converter/Brake Switch B Circuit High
P0724 code mean there is a fault in the brake switch "B" circuit often due too a faulty brake switch or poor connections.
P0738 OBD-II Trouble Code: TCM Engine Speed Output Circuit Low
P0738 means that the PCM is unable to receive a signal from the engine output speed sensor due to a faulty engine or transmission sensor, or low fluid

I'm losing coolant, but I don't know from where

The loss of coolant can be determined with a couple tests. The coolant overflow bottle can have a combustion tester put on it. This will allow you to see if there is any combustion getting into the coolant, indicating a...

A warning light saying “VSC OFF” has lit up on my dashboard and I don’t know what that means. Is it dangerous?

Hi Jessie. Thanks for contacting us today. The VSC light stands for the vehicle stability control system. If the VSC light came on, then you may have an issue with one of the speed sensors causing the system to engage....

the sliding door lock in frozen in the locked position is this an indicator that the actuator needs replaced?

There is a motor in the lock actuator. Premature wearout of the motor is a known reported issue. The testing consists of ensuring that power is being delivered to the actuator, that is ensuring that the electrical connections to 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