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BMW 740i xDrive Trunk Lock Actuator Replacement at your home or office.

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Trunk Lock Actuator Replacement Service

How much does a Trunk Lock Actuator Replacement cost?

On average, the cost for a BMW 740i xDrive Trunk Lock Actuator Replacement is $324 with $229 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2017 BMW 740i xDriveL6-3.0L TurboService typeTrunk Lock Actuator ReplacementEstimate$573.75Shop/Dealer Price$698.44 - $1050.01
2018 BMW 740i xDriveL6-3.0L TurboService typeTrunk Lock Actuator ReplacementEstimate$553.75Shop/Dealer Price$678.46 - $1030.04
Show example BMW 740i xDrive Trunk Lock Actuator Replacement prices

What is the Trunk Lock Actuator all about?

The trunk or hatch on your vehicle is designed to store or transport your belongings safely. It is locked with a keyed lock cylinder, and if your vehicle is equipped with a power trunk release button, there is a trunk lock actuator mounted to the keyed lock cylinder. When entry to the trunk is requested through electrical input, either by a trunk release button inside the car or by pressing the trunk release button on a key fob, the trunk lock actuator releases the trunk latch in the same way turning a key in the lock cylinder would. When the trunk lock actuator fails or is too weak to release the trunk latch, you may not be able to access your belongings in the trunk without using the key in the lock cylinder.

Keep in mind:

  • The trunk actuator can usually be activated by button or remote control. If one doesn’t work, try the other to see if the problem is with the actuator or the control method.
  • If the power trunk lock actuator doesn’t function, a manual trunk lock cylinder can be used to access your belongings in the trunk.
  • In some vehicles, a valet switch in the glove box will turn off the power trunk release. If the trunk lock release doesn’t work, check to make sure the valet switch is not engaged.
  • A wiring problem or burnt fuse may mimic the symptoms of a failed trunk lock actuator. Have one of our expert mechanics check the system to determine the exact cause of failure.

How it's done:

  • The trunk lock actuator is verified to be broken
  • The inside trunk trim panel trunk is removed and the broken lock actuator is removed
  • The new trunk lock actuator is installed
  • The trunk lock actuator is tested for proper operation and the inside trim panels are reinstalled
  • The trunk lid is opened and closed to check the latch and lock actuator operation

Our recommendation:

If the key still turns in the lock cylinder but the trunk will not open with either the trunk release button inside the car or on your key fob, you may need to replace the trunk lock actuator.

What common symptoms indicate you may need to replace the Trunk Lock Actuator?

  • Power trunk release will not function but the manual trunk lock cylinder operates
  • Power trunk lock button and remote key fob release buttons don’t work
  • Audible click at the trunk lock when the release button is pressed but the trunk doesn’t open

How important is this service?

The trunk lock actuator is part of a convenient power trunk release system. If it doesn’t operate as designed, you’ll have to open the trunk through the manual key lock cylinder instead. You can replace it at your convenience.

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services done by our mechanics
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Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(6,811)
Rating Summary
6,353
206
60
45
147
6,353
206
60
45
147

Attila

19 years of experience
955 reviews
Request Attila
Attila
19 years of experience
Request Attila
by Willie
BMW 740i xDrive L6-3.0L Turbo - Pre-purchase Car Inspection - Teterboro, New Jersey
Over the top helpful. I am so happy with Attila!!!! He spoke to me and gave me what I needed to know to make an informed purchase. Thank you sooo much!

Lucas

21 years of experience
893 reviews
Request Lucas
Lucas
21 years of experience
Request Lucas
by N.
BMW 540i V8-4.4L - Trunk Lock Actuator - Simi Valley, California
Lucas did an awesome job replacing my car's power steering return hose and fixed the trunk locking mechanism by replacing the actuator. Once again he arrived on time and worked on my car with great care and attention to detail. This guy is a professional and an expert auto mechanic. He knows everything there is to know about car repair and maintenance and he performs the job extremely well. Thank you Lucas once again for a job well done!

Mahdi

10 years of experience
94 reviews
Request Mahdi
Mahdi
10 years of experience
Request Mahdi
by Andrew
BMW 335i L6-3.0L Turbo - Trunk Lock Actuator - Roswell, Georgia
Great service. Thanks.

Shaun

16 years of experience
238 reviews
Request Shaun
Shaun
16 years of experience
Request Shaun
by Wayne
BMW 335i L6-3.0L Turbo - Ignition Coil - Mountain View, California
He was on time and diagnosed the problem quickly.

Excellent Rating

(6,811)
Rating Summary
6,353
206
60
45
147
6,353
206
60
45
147
Number of BMW services completed
74921+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

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