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Door Lock Carrier Replacement
 
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Pelican Technical Article:

Door Lock Carrier Replacement

Nick Czerula

Time:

1 hour1 hr

Tab:

$200

Talent:

**

Tools:

Plastic prying tool, Door panel clip tool, T30 Torx

Applicable Models:

BMW X3 Sport Utility (2004-10)

Parts Required:

Door Lock Carrier

Hot Tip:

Tape body to avoid scratches

Performance Gain:

Door opens normally

Complementary Modification:

Lubricate and clean door latch

Central locking in BMW X3 models controls door locks, luggage compartment lock and fuel filler flap lock. The electronic functions of central locking are controlled through the general module and the door switches.

The lock mechanism in each door consists of a latch, an exterior door handle, door lock carrier and an inside door lock release handle. Only the driver door (left front in North America) is equipped with a lock cylinder. The exterior door handle releases and unlocks the door latch via a cable inside the door. Over time the door lock carrier and the latch can wear out, this will make the handle malfunction, usually feeling like you have to apply excess pressure on the handle. The lock cylinder can wear out over time and become stiff. If you want to replace the door lock or handle it can be done with the door panel installed. If you want to replace the door handle carrier or the latch, you will have to remove the door panel. It's a good idea to replace the door lock carrier when replacing the latch because in my experience they usually fail within a short time of each other.

Keep in mind that when your car was serviced before, parts may have been replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have, so be prepared with different size sockets and wrenches.

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability.

Our vehicle may vary slightly from yours as models do change and evolve as they grow older. If something seems different, let us know and share your info to help other users. Questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.

In this tech article, I will go over how to replace the lock cylinder and door handle on the left side door. To replace the other door handle you can use this procedure, with the main difference being the lack of a lock cylinder.

Keep in mind that when your car was serviced before, parts may have been replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have, so be prepared with different size sockets and wrenches.

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability.

Our vehicle may vary slightly from yours as models do change and evolve as they grow older. If something seems different, let us know and share your info to help other users. Questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.

This tech article covers replacing the door lock carrier (blue arrow) and lock cylinder (red arrow).
Figure 1

This tech article covers replacing the door lock carrier (blue arrow) and lock cylinder (red arrow). First remove the door handle and the door latch. See the appropriate tech articles.

Then, loosen the T20 Torx fastener (red arrow).
Figure 2

Then, loosen the T20 Torx fastener (red arrow).

Slide the rubber seal toward the front of the vehicle to clear the fastener (red arrow) while pulling the tab (blue arrow) out of door.
Figure 3

Slide the rubber seal toward the front of the vehicle to clear the fastener (red arrow) while pulling the tab (blue arrow) out of door. Be sure not to damage the seal, replace it if you do.

Pull the door lock seal out toward the rear of vehicle, while pulling the tab (red arrow) out of door.
Figure 4

Pull the door lock seal out toward the rear of vehicle, while pulling the tab (red arrow) out of door. Be sure not to damage the seal, replace it if you do.

To release the carrier, squeeze the tabs (red arrows) together and gently push the carrier into the door.
Figure 5

To release the carrier, squeeze the tabs (red arrows) together and gently push the carrier into the door.

This photo shows sliding the door lock into the door.
Figure 6

This photo shows sliding the door lock into the door. Support it as you slide so it doesn't drop down into door and get damaged.

Working inside the door, slide the carrier toward the door jamb (rear of car) until the T20 Torx fastener clears the slot (red arrow).
Figure 7

Working inside the door, slide the carrier toward the door jamb (rear of car) until the T20 Torx fastener clears the slot (red arrow).

Remove the carrier from the door, feed it out and around the window regulator.
Figure 8

Remove the carrier from the door, feed it out and around the window regulator.

With the carrier removed, you can now replace the Bowden cable (red arrow) or the lock cylinder (blue arrow).
Figure 9

With the carrier removed, you can now replace the Bowden cable (red arrow) or the lock cylinder (blue arrow). To install new carrier, reverse steps.

To replace the Bowden cable, start by unclipping the cable using a small flathead screwdriver (blue arrow).
Figure 10

To replace the Bowden cable, start by unclipping the cable using a small flathead screwdriver (blue arrow). Hole the cable tab up and slide the mount off the carrier in direction of the red arrow.

Then, slide the cable mount up and out of the carrier.
Figure 11

Then, slide the cable mount up and out of the carrier. Gently lever using a small flathead screwdriver if needed.

Unhook the cable end and remove cable.
Figure 12

Unhook the cable end and remove cable. Reverse steps to install new cable. Be sure all the clips are securely seated.

To replace the lock cylinder, start by removing the locking wire (red arrow).
Figure 13

To replace the lock cylinder, start by removing the locking wire (red arrow). Unclip at tab

This photo shows the clip being removed.
Figure 14

This photo shows the clip being removed.

Slide lock cylinder out in direction of red arrow to remove.
Figure 15

Slide lock cylinder out in direction of red arrow to remove.

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Page last updated: Fri 11/17/2017 03:26:45 AM