Mercedes-Benz GLA250 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

(53)

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

(53)

Electronic Control Relay Replacement Service

How much does a Electronic Control Relay Replacement cost?

On average, the cost for a Mercedes-Benz GLA250 Electronic Control Relay Replacement is $141 with $46 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2015 Mercedes-Benz GLA250L4-2.0L TurboService typeElectronic Control Relay ReplacementEstimate$207.35Shop/Dealer Price$247.94 - $330.34
2019 Mercedes-Benz GLA250L4-2.0L TurboService typeElectronic Control Relay ReplacementEstimate$187.35Shop/Dealer Price$220.46 - $297.24
2016 Mercedes-Benz GLA250L4-2.0L TurboService typeElectronic Control Relay ReplacementEstimate$187.35Shop/Dealer Price$227.97 - $310.39
2018 Mercedes-Benz GLA250L4-2.0L TurboService typeElectronic Control Relay ReplacementEstimate$187.35Shop/Dealer Price$220.44 - $297.20
2017 Mercedes-Benz GLA250L4-2.0L TurboService typeElectronic Control Relay ReplacementEstimate$187.35Shop/Dealer Price$220.47 - $297.27
Show example Mercedes-Benz GLA250 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

(53)

Rating Summary
51
2
0
0
0
51
2
0
0
0

Jason

32 years of experience
537 reviews
Jason
32 years of experience
Mercedes-Benz GLA250 L4-2.0L Turbo - Oil Change - Burlingame, California
great!!!!

Jacob

15 years of experience
75 reviews
Jacob
15 years of experience
Mercedes-Benz GLA250 L4-2.0L Turbo - 50 Point Inspection - Duluth, Georgia
Awesome !

Chris

15 years of experience
312 reviews
Chris
15 years of experience
Mercedes-Benz GLA250 L4-2.0L Turbo - Oil Change - San Diego, California
Great service by Chris. Effective and quick with repairing my vehicle

Gustavo

15 years of experience
61 reviews
Gustavo
15 years of experience
Mercedes-Benz GLA250 L4-2.0L Turbo - 20,000 Miles Maintenance Service - Teaneck, New Jersey
Good guy and everything he did was seamless, didn’t have to do a thing except give him my car keys!

Excellent Rating

(53)

Rating Summary
51
2
0
0
0
51
2
0
0
0
Number of Mercedes-Benz GLA250 services completed
583+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

P0154 OBD-II Trouble Code: O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
P0154 trouble code definition 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1) What the P0154 code means The oxygen sensor’s...
10 Best Entry-Level Auto Mechanic Jobs
Automotive technician jobs involve gaining technical experience. Starting in an entry-level job opens doors for advancement into specialized areas.
P0678 OBD-II Trouble Code: Cylinder 8 Glow Plug Circuit
P0678 means that the voltage from the glow plug circuit is more than 10% off of the manufacturer’s suggested settings due to a faulty plug, or relay.

ABS ON after 18MPH

The light comes on after 18mph since this is the speed where the ABS will start to work on your car. The light is coming on due to one or more wheel speed sensors (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-wheel-speed-sensor) are not sending a signal...

my husband rotated my tires yesterday, today my steering wheel shakes

Hello. This could be a variety of potential issues. First, I would suggest checking the tire pressure (https://www.yourmechanic.com/article/how-do-i-check-my-tire-pressure) in all four tires to be sure they all have the proper air pressure as on tire that may be out of...

How long can it take an ECU computer to go bad?

Hello, and thank you for writing in. The vehicle likely did not suddenly develop all of these problems. Oil leaks in particular happen due to excessive engine wear. The spark plugs and their coils tend to be regular maintenance with...

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