BMW 525i ECM-Power Relay Replacement at your home or office.

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ECM-Power Relay Replacement Service

How much does a ECM-Power Relay Replacement cost?

On average, the cost for a BMW 525i ECM-Power Relay Replacement is $113 with $18 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2003 BMW 525iL6-2.5LService typeECM-Power Relay ReplacementEstimate$168.19Shop/Dealer Price$198.99 - $252.02
2002 BMW 525iL6-2.5LService typeECM-Power Relay ReplacementEstimate$133.35Shop/Dealer Price$160.47 - $202.39
1989 BMW 525iL6-2.5LService typeECM-Power Relay ReplacementEstimate$133.35Shop/Dealer Price$160.47 - $202.39
1993 BMW 525iL6-2.5LService typeECM-Power Relay ReplacementEstimate$133.35Shop/Dealer Price$160.43 - $202.32
2005 BMW 525iL6-2.5LService typeECM-Power Relay ReplacementEstimate$133.35Shop/Dealer Price$160.50 - $202.44
1990 BMW 525iL6-2.5LService typeECM-Power Relay ReplacementEstimate$133.35Shop/Dealer Price$160.47 - $202.39
1995 BMW 525iL6-2.5LService typeECM-Power Relay ReplacementEstimate$138.35Shop/Dealer Price$165.23 - $206.97
1992 BMW 525iL6-2.5LService typeECM-Power Relay ReplacementEstimate$138.35Shop/Dealer Price$165.89 - $208.11
Show example BMW 525i ECM-Power Relay Replacement prices

What is the ECM-Power Relay all about?

Vehicle development has evolved over the past several decades to a point where it seems every vehicle function is controlled by a computer, right down to the engine itself. This is actually the case for the engine and its related functions as it is controlled by the engine control module, or ECM. The ECM monitors and adjusts operation and power distribution to the fuel supply and injection systems, engine timing, exhaust gas recirculation, emissions, ignition system, and several other systems. In order to dispense power to operate these other systems, the engine control module requires power itself.

The power distribution center, or fuse block, located under the hood houses most or all of the vehicle’s fuses and relays. It contains a relay for the ECM that is powered up when the ignition key is turned to the on position. This ECM power relay acts as a switch that supplies power to the ECM. When the ignition is turned off, power switches inside the ECM relay and it no longer receives battery power. If the ECM power relay stops switching as it should, you will experience vehicle problems. When the relay is stuck open, no power will be delivered to the engine control module and the vehicle won’t start. If the relay is stuck closed, constant power will be sent to the ECM even with the engine turned off and the battery will drain.

Keep in mind:

  • The battery should be disconnected any time the electrical system is being serviced.
  • There are several problems which can cause your vehicle not to start, with the ECM power relay being one of them. Have the problem diagnosed by one of our expert technicians.

How it's done:

  • The ECM-power relay is verified that it needs to be replaced. The relay is located in the engine main fuse relay control box.

  • The defective ECM-power relay is removed from the control box by pulling it straight up and out of socket.

  • The new ECM-power relay is installed into the socket and the engine scanned for codes.

  • The engine is started and the ECM-power relay is tested for proper operation.

  • The vehicle is road tested for proper operation of the ECM-power relay and is then checked for codes.

Our recommendation:

The ECM power relay should last the lifetime of your vehicle unless there is a power distribution problem or moisture that causes it to fail. If your vehicle won’t start, have one of our expert technicians diagnose the problem and replace the ECM power relay if necessary.

What common symptoms indicate you may need to replace the ECM-Power Relay?

  • Engine will not start when the key is turned.
  • Engine doesn’t turn over when ignition is on.
  • Check Engine light is on.
  • Battery drain which may leave it weak or dead.

How important is this service?

Although it is extremely unlikely the ECM relay will cause your vehicle to stall or create a safety concern, your vehicle may not start or the battery may die while the ignition is off. In either case, you will need to replace the ECM relay.

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Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(183)

Rating Summary
168
6
2
0
7
168
6
2
0
7

Sergio

10 years of experience
204 reviews
Sergio
10 years of experience
BMW 525i L6-2.5L - Battery - San Antonio, Texas
He was great!!!

Joshua

13 years of experience
41 reviews
Joshua
13 years of experience
BMW 525i L6-2.5L - Brake Pads Replacement (Front) - Durham, North Carolina
Joshuas was very good, he is very knowledgeable as well, the job didn't take him long at all, and saved money!

Michael

27 years of experience
483 reviews
Michael
27 years of experience
BMW 525i L6-2.5L - Engine or Transmission Mount Replacement - Phoenix, Arizona
My name is Brian Jones, and first, I would like to say, I'am a Veteran and I hope that still holds some weight in my country...Having said that I would never lie or mislead my fellow country men ...The guy was hands down on point from start to finish...As a BMW owner we love our cars but Dealer prices hurt...Well Micheal came to my house totally trusted him changed out my motor mounts half dealer cost .....and now my car is smooth as glass they even take pictures of your parts, and every detail of your car, there is nothing to loose, and all to gain by calling them ....I have a detailed report of a few minor things I need to replace all included with your service ....I'm going to use them from now on

Jerimiah

19 years of experience
328 reviews
Jerimiah
19 years of experience
BMW 525i L6-2.5L - Valve Cover Gasket - Henderson, Nevada
Jerimiah is one of the best mechanics I know! He has inspected and worked on my car a few times now and every time he has gone above and beyond. I trust in his expertise and I will gladly book him for any repairs in the future.

Excellent Rating

(183)

Rating Summary
168
6
2
0
7
168
6
2
0
7
Number of BMW 525i services completed
2013+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

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