Mercedes-Benz CLS63 AMG Electronic Control Relay Replacement at your home or office.

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Electronic Control Relay Replacement Service

How much does a Electronic Control Relay Replacement cost?

On average, the cost for a Mercedes-Benz CLS63 AMG Electronic Control Relay Replacement is $150 with $55 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2009 Mercedes-Benz CLS63 AMGV8-6.3LService typeElectronic Control Relay ReplacementEstimate$225.79Shop/Dealer Price$278.49 - $380.35
2011 Mercedes-Benz CLS63 AMGV8-6.3LService typeElectronic Control Relay ReplacementEstimate$205.79Shop/Dealer Price$258.54 - $360.42
2012 Mercedes-Benz CLS63 AMGV8-5.5L TurboService typeElectronic Control Relay ReplacementEstimate$205.79Shop/Dealer Price$258.53 - $360.42
2008 Mercedes-Benz CLS63 AMGV8-6.3LService typeElectronic Control Relay ReplacementEstimate$205.79Shop/Dealer Price$258.48 - $360.32
2010 Mercedes-Benz CLS63 AMGV8-6.3LService typeElectronic Control Relay ReplacementEstimate$205.79Shop/Dealer Price$258.57 - $360.49
2007 Mercedes-Benz CLS63 AMGV8-6.3LService typeElectronic Control Relay ReplacementEstimate$205.79Shop/Dealer Price$258.53 - $360.42
2014 Mercedes-Benz CLS63 AMGV8-5.5L TurboService typeElectronic Control Relay ReplacementEstimate$210.79Shop/Dealer Price$263.19 - $364.82
2013 Mercedes-Benz CLS63 AMGV8-5.5L TurboService typeElectronic Control Relay ReplacementEstimate$210.79Shop/Dealer Price$264.13 - $366.45
Show example Mercedes-Benz CLS63 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.

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John

27 years of experience
1033 reviews
John
27 years of experience
Mercedes-Benz CLS63 AMG V8-6.3L - Pre-purchase Car Inspection - Houston, Texas
John is amazing.. Definitely enjoyed working with him.

Joseph

17 years of experience
68 reviews
Joseph
17 years of experience
Mercedes-Benz ML350 V6-3.5L - Tire Rotation - Boca Raton, Florida
Great job

Pete

16 years of experience
192 reviews
Pete
16 years of experience
Mercedes-Benz C300 V6-3.0L - Oil Change - San Diego, California
Pete was very professional and quick to finish my car. Gave me some feedback on things that need to be addressed so that was great.

Larry

16 years of experience
125 reviews
Larry
16 years of experience
Mercedes-Benz C240 V6-2.6L - Brake Pads Replacement (Rear) - Columbus, Ohio
Good

Excellent Rating

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Rating Summary
5,256
190
54
28
119
5,256
190
54
28
119
Number of Mercedes-Benz services completed
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