BMW 440i Car Door Lock 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

(6,643)

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

(6,643)

Car Door Lock Relay Replacement Service

How much does a Car Door Lock Relay Replacement cost?

On average, the cost for a BMW 440i 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
2017 BMW 440iL6-3.0L TurboService typeCar Door Lock Relay ReplacementEstimate$163.77Shop/Dealer Price$185.97 - $230.05
2018 BMW 440iL6-3.0L TurboService typeCar Door Lock Relay ReplacementEstimate$143.77Shop/Dealer Price$165.98 - $210.08
Show example BMW 440i 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.

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

(6,643)

Rating Summary
6,192
205
60
44
142
6,192
205
60
44
142

Eduardo

19 years of experience
552 reviews
Eduardo
19 years of experience
BMW 535i L6-3.0L Turbo - Check Engine Light is on - Houston, Texas
Very professional.

Rigoberto

11 years of experience
739 reviews
Rigoberto
11 years of experience
BMW 528i xDrive L4-2.0L Turbo - Brakes, Steering and Suspension Inspection - Chicago, Illinois
i love this guy very good at work

Alan

20 years of experience
3 reviews
Alan
20 years of experience
BMW 650i V8-4.8L - Oil Pressure Sensor - Burbank, California
Allen was knowledgeable, personable, with good character. I enjoyed his services. Always nice to meet a quality human being.

Mahdi

10 years of experience
94 reviews
Mahdi
10 years of experience
BMW 550i V8-4.8L - Electrical components are not working - Alpharetta, Georgia
Very professional. Told me what was wrong and how to fix it in order

Excellent Rating

(6,643)

Rating Summary
6,192
205
60
44
142
6,192
205
60
44
142
Number of BMW services completed
73073+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

Recent articles & questions

P2423 OBD-II Trouble Code: HC Adsorption Catalyst Efficiency Below Threshold Bank 1
P2423 P2423 Code Definition A P2423 code is a generic powertrain code related to emissions systems problems. In this case, the hydrocarbon adsorption and catalyst efficiency is below the allowed threshold in engine bank 1 (typically the number 1 cylinder)....
How to Replace a Fan Clutch
A fan clutch controls the car engine cooling fan and operates on temperature. It's mounted to the water pump and can cause overheating if it's broken.
How to Improve Automatic Transmission Performance and Reliability
The transmission on automatic cars is improved by changing driving habits, maintaining engine performance, and replacing transmission oil and filter.

Catalytic converter now won't start

Hi there. The fact that the catalytic converter was glowing red hot does not mean it was bad. Removing the converter completely can sometimes cause more issues with the car, as it effects the sensor readings. The fact that the...

Car hesitates while accelerating, EGR valve is a recurring issue - 1999 Isuzu Amigo

Hello. If replacing the EGR valve (https://www.yourmechanic.com/services/exhaust-gas-recirculation-egr-valve-replacement) did not fix the issue, then the EGR valve was likely not the failed component. I would check to make sure that there are no exhaust leaks in the EGR system, as any...

My 1999 Toyota Camry keeps misfiring

Engine misfires can be caused by many different problems and are generally caused by either a spark or fuel issue or in some cases, a combination of both. Spark related problems generally will result from things like ignition coils, crankshaft...

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