Mercedes-Benz GLB35 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 GLB35 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
* Mercedes-Benz GLB35 AMGL4-2.0L TurboService typeElectronic Control Relay ReplacementEstimate$207.35Shop/Dealer Price$247.94 - $330.34
* Mercedes-Benz GLB35 AMGL4-2.0L TurboService typeElectronic Control Relay ReplacementEstimate$187.35Shop/Dealer Price$227.97 - $310.39
* Mercedes-Benz GLB35 AMGL4-2.0L TurboService typeElectronic Control Relay ReplacementEstimate$187.35Shop/Dealer Price$227.97 - $310.39
Show example Mercedes-Benz GLB35 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

Carlos

21 years of experience
47 reviews
Carlos
21 years of experience
Mercedes-Benz SL500 V8-5.0L - Pre-purchase Car Inspection - Stafford, Texas
Needed a vehicle inspected on short notice and Carlos was there. The report was detailed and included photos which were very helpful. Carlos was very patient with me when I called to more detail and advice. Excellent service.

James

30 years of experience
925 reviews
James
30 years of experience
Mercedes-Benz C240 V6-2.6L - Water Pump - Orlando, Florida
Excellent mechanic and very knowledgeable will u have again for all my mechanics needs!

Benji

22 years of experience
277 reviews
Benji
22 years of experience
Mercedes-Benz C230 V6-2.5L - Car is not starting - Mesa, Arizona
Excellent service.

Khoa

20 years of experience
402 reviews
Khoa
20 years of experience
Mercedes-Benz E350 V6-3.5L - Oil Change - San Jose, California
Convenient and fair price

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 Buy a Good Quality Radar Detector
Have Have you ever been caught by radar and then nailed with a speeding ticket? One time is usually enough for people to always want to avoid this from happening in the future. A radar detector is an accessory you...
Hyundai Certified Pre-Owned (CPO) Car Program
If If you have been shopping for a used Hyundai vehicle, you may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on...
B1965 OBD-II Trouble Code: Seat Horizontal Forward/Rearward Potentiometer Feedback Circuit Short to Ground
B1965 means there is an issue with the power seat potentiometer, likely that it is malfunctioning due to an electrical problem.

How do I create a MyKey?

You can create a MyKey with just a few steps: 1. Press the Up/Down buttons on the steering wheel until Settings is displayed on the instrument panel, then press the OK button. 2. Press the Up/Down buttons until MyKey is...

I Cannot Screw On Oil Filter.

You are using the correct filter. I looked at the photos that you sent but the photos do not show the entirety of the threads. Even if such are shown "clearly", when it comes to threaded parts, it only takes...

Mercedes 380SL starting up, rough idling, then cutting off and dying

The mileage is not that high but due to the age, before attempting further diagnostics, you should test cylinder compression and intake vacuum (to check for stuck valves). If you determine that the engine is basically mechanically sound, there are...

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