BMW 740i Car Door Lock Relay Replacement Costs

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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 740i Car Door Lock Relay Replacement is $119 with $24 for parts and $95 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2014 BMW 740iL6-3.0L Turbo	Service typeCar Door Lock Relay Replacement	Estimate$163.77	Shop/Dealer Price$193.47 - $243.18
1993 BMW 740iV8-4.0L	Service typeCar Door Lock Relay Replacement	Estimate$143.77	Shop/Dealer Price$173.50 - $223.23
1999 BMW 740iV8-4.4L	Service typeCar Door Lock Relay Replacement	Estimate$143.77	Shop/Dealer Price$173.50 - $223.23
1997 BMW 740iV8-4.4L	Service typeCar Door Lock Relay Replacement	Estimate$143.77	Shop/Dealer Price$173.46 - $223.16
2016 BMW 740iL6-3.0L Turbo	Service typeCar Door Lock Relay Replacement	Estimate$143.77	Shop/Dealer Price$173.52 - $223.28
1995 BMW 740iV8-4.0L	Service typeCar Door Lock Relay Replacement	Estimate$143.77	Shop/Dealer Price$173.50 - $223.23
1994 BMW 740iV8-4.0L	Service typeCar Door Lock Relay Replacement	Estimate$148.77	Shop/Dealer Price$178.26 - $227.81
2000 BMW 740iV8-4.4L	Service typeCar Door Lock Relay Replacement	Estimate$148.77	Shop/Dealer Price$178.91 - $228.95

Show example BMW 740i 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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Whitney

39 years of experience

783 reviews

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Whitney

39 years of experience

Request Whitney

by Steve

BMW 740i V8-4.4L - brake pad wear sensor - Mountain View, California

Once again, Whitney was excellent (3 for 3, batting 1,000)! Thanks!

Nick

7 years of experience

12 reviews

Nick

7 years of experience

by Donnie

BMW 740i L6-3.0L Turbo - Oil Change - Spring, Texas

Super professional and always gets the job done.

Andrew

15 years of experience

524 reviews

Andrew

15 years of experience

by Theodore

BMW 740i V8-4.4L - Starter - Beaverton, Oregon

Andrew came out last week and troubleshot my car in the garage and said it was the starter motor. I had suspected it was the starter motor but wasn't quite sure so it was good to get a verification. I have to admit, I was kinda skeptical about this home mechanic thing so I was taking a wait and see attitude until after he came back for the repairs. Both times, Andrew showed up early..which is fine by me. Today, when he came back, he went straight to work installing the new starter motor and changed the oil. Car fired right up so I was happy and I've started it a few more times and it is working well and I don't see any oil leaking. If there was a half star option, I'd deduct 1/2 star. Andrew needs to carry some oil rag buckets or something since he put a bunch of oily rags next to the sidewalk and I went out to clean them up (my dad saw them on his way out and text me and I said, it can't be the mechanic) and had to dig up some dirt since the rags were leaking oil. I'm not sure why he thought placing them on the ground was a good idea but oily rags on the ground is never good especially when it's raining. Overall, I'm happy with the repairs and the experience and will definitely consider using the service again especially since I'm working from home and don't get into my normal shop anymore.

David

10 years of experience

170 reviews

David

10 years of experience

by Daniel

BMW 740i L6-3.0L Turbo - Car Battery Replacement - Windermere, Florida

Very knowledgeable and respectful!

Excellent Rating

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