Mercedes-Benz E63 AMG S 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 E63 AMG S Electronic Control Relay Replacement is $150 with $55 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2014 Mercedes-Benz E63 AMG SV8-5.5L TurboService typeElectronic Control Relay ReplacementEstimate$225.79Shop/Dealer Price$278.49 - $380.35
2016 Mercedes-Benz E63 AMG SV8-5.5L TurboService typeElectronic Control Relay ReplacementEstimate$205.79Shop/Dealer Price$258.54 - $360.42
2015 Mercedes-Benz E63 AMG SV8-5.5L TurboService typeElectronic Control Relay ReplacementEstimate$205.79Shop/Dealer Price$258.53 - $360.42
2018 Mercedes-Benz E63 AMG SV8-4.0L TurboService typeElectronic Control Relay ReplacementEstimate$205.79Shop/Dealer Price$243.49 - $334.08
Show example Mercedes-Benz E63 AMG S 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

Jeremy

20 years of experience
642 reviews
Jeremy
20 years of experience
Mercedes-Benz GLK350 V6-3.5L - Car is not starting - Lake Worth, Florida
Jeremy was great! He was on time, fast, and really knowledgeable. Thank you again.

Gustavo

17 years of experience
436 reviews
Gustavo
17 years of experience
Mercedes-Benz ML350 V6-3.5L - Spark Plugs - San Antonio, Texas
Awesome mechanic.

Abdul

11 years of experience
419 reviews
Abdul
11 years of experience
Mercedes-Benz C230 V6-2.5L - Oil Change - Atlanta, Georgia
Abdul was great! He arrived early and he was so quick and courteous.

Chris

16 years of experience
419 reviews
Chris
16 years of experience
Mercedes-Benz SLK350 V6-3.5L - Ignition Coil - San Francisco, California
Chris was right on time, personable, and very knowledgeable. Will definitely use again.

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 Register a Car in Delaware
All All vehicles must be registered through the Delaware Department of Motor Vehicles (DMV). If you have just moved to the state, you have 60 days to register your car. This needs to be done in person at the local...
P0740 OBD-II Trouble Code: Torque Converter Clutch Circuit Malfunction
P0740 P0740 Code Definition Torque converter clutch circuit malfunction is the technical definition of this trouble code What the P0740 code means What the P0740 code means is that the powertrain control module (PCM) has detected something unusual within the...
P0546 OBD-II Trouble Code: Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 1
P0546 code means that the malfunction is related to the exhaust gas temperature sensor circuit due to loose terminals, wiring issues, or faulty sensor

What does the Intelligent Key™ battery discharge indicator mean?

Your Intelligent Key™ is a critical element to operating your car, but it does require a little bit of maintenance. The most important tip for owners is to make sure the battery is replaced. Without a good battery, they key...

My blower motor is not working on 2008 Hyundai Sante Fe

Hello, thanks for writing in. The blower motor resistor is what controls the different modes (i.e. high speed, low speed, etc.) of the motor. The blower motor relay is what controls the power to the motor in general. I would...

Car is hard to stop, surges forward in drive, and kicks when coming to a stop

Hi There, It sounds like you may have a dirty or failing idle air control valve causing your engine idle to fluctuate. The idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) is a small valve on the engine's intake system that reads 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