BMW 540i Car Door Lock Relay Replacement at your home or office.

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Car Door Lock Relay Replacement Service

How much does a Car Door Lock Relay Replacement cost?

On average, the cost for a BMW 540i Car Door Lock Relay Replacement is $119 with $24 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1998 BMW 540iV8-4.4LService typeCar Door Lock Relay ReplacementEstimate$163.77Shop/Dealer Price$193.47 - $243.18
2018 BMW 540iL6-3.0L TurboService typeCar Door Lock Relay ReplacementEstimate$143.77Shop/Dealer Price$165.98 - $210.08
1997 BMW 540iV8-4.4LService typeCar Door Lock Relay ReplacementEstimate$143.77Shop/Dealer Price$173.50 - $223.23
1999 BMW 540iV8-4.4LService typeCar Door Lock Relay ReplacementEstimate$143.77Shop/Dealer Price$173.46 - $223.16
2000 BMW 540iV8-4.4LService typeCar Door Lock Relay ReplacementEstimate$143.77Shop/Dealer Price$173.52 - $223.28
1994 BMW 540iV8-4.0LService typeCar Door Lock Relay ReplacementEstimate$143.77Shop/Dealer Price$173.50 - $223.23
1995 BMW 540iV8-4.0LService typeCar Door Lock Relay ReplacementEstimate$148.77Shop/Dealer Price$178.26 - $227.81
2002 BMW 540iV8-4.4LService typeCar Door Lock Relay ReplacementEstimate$148.77Shop/Dealer Price$178.91 - $228.95
Show example BMW 540i Car Door Lock Relay Replacement prices

What is the Door Lock Relay all about?

Power door locks used to be a luxury feature on vehicles, but they've become so mainstream that nearly every vehicle is now equipped with them. The lock’s function is to make securing your vehicle, as well as passengers, simple and easy. Instead of reaching across the vehicle to lock or unlock the doors, it can be done by simply pressing a button. Pressing the button completes a circuit, enabling the lock actuator to receive power which activates the locking mechanism to the desired position. The circuit is routed through a door lock relay, which acts as a switch to direct the power to actuators on the door locks. When unlock is pressed, the door lock relay switches from a neutral position to activating a pulse of power to the unlock circuits on the actuators. When the lock button is pressed, a pulse of power is switched to the lock circuit of the actuator to lock the doors. When the relay for the door locks is not working properly or sticking, either the lock function, the unlock function, or both are inoperative.

Keep in mind:

  • When service is performed on any electrical system, the battery should be disconnected to prevent accidental damage or injury.
  • If the door lock relay needs to be replaced, it can be indicative of an underlying concern with the power door locks.
  • Some vehicles equipped with remote keyless entry will find the key fob operates the driver’s door lock even while the door lock relay is defective.

How it's done:

  • Test the operation of electric door locks.
  • Test the fuse for that circuit.
  • Test the relay.
  • Replace the faulty relay.
  • Test for proper operation of electric door locks.

Our recommendation:

If you are experiencing problems with your power door locks, have one of our expert technicians diagnose and repair the system. Relays and electrical systems can be complex, and a broken wire or door lock actuator problem can easily mimic the symptoms of a door lock relay and vice versa.

What common symptoms indicate you may need to replace the Door Lock Relay?

  • Power door locks don’t lock when you press the button, while the unlock feature works.
  • Neither the lock nor unlock functions work.

How important is this service?

Power door locks are a convenience feature on your vehicle. If the power locks aren’t working, you can use the key to unlock your door and the locks can be manually operated as well. Have the power door lock system repaired at your convenience.

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Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(60)

Rating Summary
56
3
0
0
1
56
3
0
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1

Galvani

27 years of experience
16 reviews
Galvani
27 years of experience
BMW 540i V8-4.4L - Drive Belt Tensioner - Los Angeles, California
I am a 110% satisfied customer with Galvanis service. He is one of the most knowledgeable and professional auto mechanics I have dealt with. In future I plan to use his service again!!!

Chris

22 years of experience
2229 reviews
Chris
22 years of experience
BMW 540i V8-4.4L - Check Engine Light is on - Santa Ana, California
I had a big engine job done on my car a couple of weeks before calling "YourMechanic". Check engine light came on soon after. Chris identified the problem immediately and strongly suggested I take the car back to the shop that did the job to have the problem corrected. Chris explained what is happening with the car and wrote up the problem so I can tell the shop. He even provided his personal contact information in case the shop had questions, which is awesome. Thanks Chris.

Greg

22 years of experience
342 reviews
Greg
22 years of experience
BMW 540i V8-4.4L - Water Pump - San Tan Valley, Arizona
Greg was incredible, very knowledgeable, explains everything in layman term, I would highly recommend him to anyone.

Lucas

21 years of experience
885 reviews
Lucas
21 years of experience
BMW 540i V8-4.4L - Coolant is leaking - Simi Valley, California
My first experience was better than expected. Lucas was great. I received a quote to replace the leaking water pump as well as the thermostat and scheduled my next appointment. Very convenient.

Excellent Rating

(60)

Rating Summary
56
3
0
0
1
56
3
0
0
1
Number of BMW 540i services completed
660+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

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