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Parking Brake Shoes Replacement
 
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Pelican Technical Article:

Parking Brake Shoes Replacement

Nick Czerula

Time:

2 hours2 hrs

Tab:

$150

Talent:

*****

Tools:

5mm, 6mm Allen bits, 16mm socket. flathead screwdriver, diagonal cutters

Applicable Models:

BMW X3 Sport Utility (2004-10)

Parts Required:

Parking brake shoes and hardware, brake cleaner, brake grease

Hot Tip:

Do one side at a time so you have an assembled side for reference

Performance Gain:

Proper parking brake function

Complementary Modification:

Flush brake fluid. Replace brake rotors and pads

BMW X3 models are equipped with a mechanical parking brake. This parking brake is used to hold the vehicle stationary when not in use. The parking brake is operated via a handle in the vehicle cabin, actuated cables that engage the parking brake shoes. It is a shoe and drum style brake.

The parking brake shoes can fail. For example, the linings can fall off and create a grinding noise. The hole in the backing plate where a brake shoe retaining clip mounts can also rust and fail. When this happens, the retaining clip pulls through and parking brake shoe comes in contact with brake rotor when driving. You will hear a grinding noise when driving. If this happens, you will need to replace the backing plate, brake shoes, hardware and rotor.

To avoid marring the paint and trim, work with a plastic prying tool or wrap a screwdriver tip with masking tape before prying out body or interior items.

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. Do not work on your vehicle if you feel the task is beyond your ability.

Vehicle models change and evolve as they grow older, so the vehicle shown in our illustrations may vary slightly from yours. 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.

Loosen but do not remove wheels bolts while the vehicle is on the ground. Lift and support rear of vehicle. See our tech article on jacking your vehicle.

Remove rear wheels.

In the first steps I am going to show you how to release the tension on the parking brake cables. This is not necessary when replacing the parking brake shoes. It is only needed when the rotor cannot be removed and you need extra clearance. You can skip steps 1 - 6 if your rotor comes off easily.

Working in the vehicle interior, lever the bottom (red arrow) of the parking brake lever boot out using a plastic prying tool.
Figure 1

Working in the vehicle interior, lever the bottom (red arrow) of the parking brake lever boot out using a plastic prying tool.

Alternatively, pinch the bottom of the boot and pull it straight out.
Figure 2

Alternatively, pinch the bottom of the boot and pull it straight out.

Then pull out the parking brake lever boot down to detach the top clip (red arrow).
Figure 3

Then pull out the parking brake lever boot down to detach the top clip (red arrow).

Once the trim pieces are removed, look below the parking brake handle pivot (yellow arrow).
Figure 4

Once the trim pieces are removed, look below the parking brake handle pivot (yellow arrow). Locate the parking brake cable service lock (red arrow).

Check that the parking brake lever is in the released position (yellow arrow).
Figure 5

Check that the parking brake lever is in the released position (yellow arrow). Release the cable tension by engaging the service lock. Press the spring (purple arrow) with a flathead screwdriver (red arrow) until the hook locks the spring in a compressed position (green arrow). If the parking brake lever is not fully released, you will not be able to engage the service lock. The yellow arrow points to the service lock, viewed from above.

Using a long, thin flathead screwdriver, rotate the adjuster to retract the parking brake shoes until the wheel spins free.
Figure 6

Using a long, thin flathead screwdriver, rotate the adjuster to retract the parking brake shoes until the wheel spins free. For the driver side wheel, lever the adjuster down to expand the brake shoes. For the passenger side wheel, lever adjuster up to expand the brake shoes. This photo shows the passenger side, levering up the adjuster up retracts the adjuster, levering the adjuster down expands the adjuster. Screwdriver handle moves in opposite direction of adjuster.

Next, using a 6mm Allen bit, remove brake rotor mounting fastener (red arrow).
Figure 7

Next, using a 6mm Allen bit, remove brake rotor mounting fastener (red arrow).

Using a flathead screwdriver, slowly press brake caliper piston in.
Figure 8

Using a flathead screwdriver, slowly press brake caliper piston in. This allows brake caliper to be pulled off brake rotor easily. I like to pry between the outer brake pad and brake rotor. This way there is less chance of damaging the caliper piston. Remember when compressing the caliper piston, it will force brake fluid back into the brake fluid reservoir, make sure to check the level of the reservoir and be prepared to remove some fluid. Alternatively, open the bleeder screw on the caliper to allow the fluid to escape, catch it in a container.

Working behind brake caliper: Remove two 16mm brake caliper bracket mounting bolts (red arrows).
Figure 9

Working behind brake caliper: Remove two 16mm brake caliper bracket mounting bolts (red arrows).

Remove brake caliper with bracket from wheel carrier and hang using a piece of metal coat hanger or a bungee (red arrow).
Figure 10

Remove brake caliper with bracket from wheel carrier and hang using a piece of metal coat hanger or a bungee (red arrow). Do not allow caliper to hang from brake hose. Then remove brake rotor from hub.

Then, back the parking brake shoes off completely (red arrow).
Figure 11

Then, back the parking brake shoes off completely (red arrow).

Next, unhook the upper return spring from parking brake shoes (red arrow).
Figure 12

Next, unhook the upper return spring from parking brake shoes (red arrow). I like to use an old pair of diagonal cutters, with worn out cutting jaws. Grab the spring, pull it up and unhook from brake shoe.

Using a long 5mm Allen bit, remove parking brake shoe retaining clips by rotating 90° and pulling away from brake shoes (inset).
Figure 13

Using a long 5mm Allen bit, remove parking brake shoe retaining clips by rotating 90° and pulling away from brake shoes (inset). Each shoe has one clip (red arrow).

Remove parking brake shoes from vehicle, fold them toward each other and remove.
Figure 14

Remove parking brake shoes from vehicle, fold them toward each other and remove.

Then, separate remaining parts (red arrow).
Figure 15

Then, separate remaining parts (red arrow). Inspect shoe adjuster, check that it moves freely and is not damaged.

Then lightly grease brake shoe to backing plate contact points (red arrows).
Figure 16

Then lightly grease brake shoe to backing plate contact points (red arrows). Use caution so as not to get any grease on the actual shoes. Inspect the retaining spring holes for rust. If overly rusty, replace backing plates.

Check that the parking brake lever is correctly hooked to the parking brake cable (red arrow) before installing the brake shoes.
Figure 17

Check that the parking brake lever is correctly hooked to the parking brake cable (red arrow) before installing the brake shoes. Install new brake shoes in reverse order of removal. Install brake rotor and brake caliper. Adjust parking brake once wheels are installed and tightened. See our tech article on parking brake adjusting.










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Comments and Suggestions:
Den Comments: Need advice on removing rear rotors, the wheel spins freely but will now slide off the hub, feels like it's catching on the brake shoes.
Was able to pull driver side off but the whole brake asssbly came with it, now passenger side is fighting back even harder.
I did release the brake as shown.
Thanks for thoughts on how to get that sucker off. Also will need new brake kit to rebuild.D
June 12, 2017
  Followup from the Pelican Staff: Possible there is a ridge on the rotor preventing the rotor past the shoes. Assuming the rotor mounting fastener was removed. - Nick at Pelican Parts  

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Page last updated: Sun 11/19/2017 03:10:24 AM