BMW 440i 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

(6,828)

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

(6,828)

Electronic Control Relay Replacement Service

How much does a Electronic Control Relay Replacement cost?

On average, the cost for a BMW 440i Electronic Control Relay Replacement is $141 with $46 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2018 BMW 440iL6-3.0L TurboService typeElectronic Control Relay ReplacementEstimate$207.35Shop/Dealer Price$240.44 - $317.21
2019 BMW 440iL6-3.0L TurboService typeElectronic Control Relay ReplacementEstimate$187.35Shop/Dealer Price$220.46 - $297.24
2017 BMW 440iL6-3.0L TurboService typeElectronic Control Relay ReplacementEstimate$187.35Shop/Dealer Price$220.46 - $297.24
Show example BMW 440i 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 BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(6,828)

Rating Summary
6,369
206
60
45
148
6,369
206
60
45
148

Rocco

22 years of experience
302 reviews
Rocco
22 years of experience
BMW X5 L6-3.0L Turbo Diesel - Brake Pads Replacement (Rear) - Redondo Beach, California
Thank you for your kind support. He is punctual and great! See u again soon.

Jacob

12 years of experience
329 reviews
Jacob
12 years of experience
BMW 323i L6-2.5L - Coolant Reservoir - Dallas, Texas
Jacob was superb. He take pride in his work. I will be calling you guys again.

Robert

22 years of experience
303 reviews
Robert
22 years of experience
BMW 535i L6-3.0L Turbo - Spark Plug Replacement - Grapevine, Texas
Excellent work! Quality work, quick and efficient. Will utilize Robert’s skills again in the future. Highly recommend.

Robert

20 years of experience
1126 reviews
Robert
20 years of experience
BMW 128i L6-3.0L - Smoke from engine or exhaust - Commerce City, Colorado
It was very professional. Showed up early, got right to work and kept me informed.

Excellent Rating

(6,828)

Rating Summary
6,369
206
60
45
148
6,369
206
60
45
148
Number of BMW services completed
75108+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

Recent articles & questions

5 Essential Things to Know About Owning a Coupe
Coupes, Coupes, which are generally two-door vehicles, are often based on a larger sedan model within the same vehicle line. There are also some cars that have hatchbacks, yet are still classified as coupes due to having only two doors....
How Long Does a Headlight Bulb Last?
With With all of the different relays that are on a car, it can feel like a full-time job keeping up with them all. One of the most important safety features that a car has is properly working headlights. In...
How to Put Racing Stripes on a Classic Car
Older Older cars or classic cars (https://www.yourmechanic.com/article/how-to-buy-restore-and-sell-a-vintage-car-by-jason-unrau) have a lot of appeal because they represent bygone eras. Fresh paint (https://www.yourmechanic.com/article/how-to-paint-a-car-yourself) is a great way to keep up the appearance of older vehicles, and a great way to show individual style....

Detached hose

If a hose is detached, I would try and figure out where it may have come loose from. If you are not comfortable, or unable to find where the hose is disconnected from, I would recommend having a professional technician,...

Why do you want to replace both of the front brake pads at the same time?

Hello - brake pads normally wear relatively equally between the left and right side. This indicates that the brakes on each side are working properly. A frozen caliper, or sticking caliper slide bolt will cause a wear imbalance, and should...

Test question - ignore

test - ignore

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