Parts Catalog Accessories Catalog Tech Info Tech Forums
 
Follow Pelican Parts on Facebook Follow Pelican Parts on Twitter Follow Pelican Parts on Instagram Follow Pelican Parts on YouTube Follow Pelican Parts on Pinterest Follow Pelican Parts on Tumblr
  Search our site:    
View Recent Cars  |   Cart  | Project List | Order Status | Help    
 >  >
Parking Brake Shoes Replacement
 
Bookmark and Share

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,

Applicable Models:

BMW Z4 Convertible (2003-06)
BMW Z4 Coupe (2006)

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 Z4 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 show 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 the 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 up 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 & 2 if needed.

Working in the vehicle interior, lever the top of the parking brake lever boot out using a plastic prying tool.
Figure 1

Working in the vehicle interior, lever the top of the parking brake lever boot out using a plastic prying tool. Then pull out the parking brake lever boot (red arrow) to detach it from the center console. Pull it up and over the handle.

Using a plastic prying tool, lever the shift boot trim (red arrow) out of the center console.
Figure 2

Using a plastic prying tool, lever the shift boot trim (red arrow) out of the center console. You may even be able to pinch the shift boot and pull the trim piece straight out without prying.

Using a plastic prying tool, lever the plastic trim piece below the parking brake handle (red arrow) out of the center console.
Figure 3

Using a plastic prying tool, lever the plastic trim piece below the parking brake handle (red arrow) out of the center console.

Using a flathead screwdriver, remove brake caliper anti-rattle spring (red arrow) by prying out while securing with hand.
Figure 4

Using a flathead screwdriver, remove brake caliper anti-rattle spring (red arrow) by prying out while securing with hand. The spring can pop off and go flying, be sure to hold it steady. This step isn't really necessary, but it makes compressing the piston easier. The piston will slide on the bracket with less resistance.

Using a flathead screwdriver, slowly press brake caliper piston in.
Figure 5

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.

Working behind brake caliper: Remove two 16mm brake caliper bracket mounting bolts (red arrows).
Figure 6

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.
Figure 7

Remove brake caliper with bracket from wheel carrier and hang using a piece of metal coat hanger. Do not allow caliper to hang from brake hose.

If needed, back the parking brake shoes off about 8 turns.
Figure 8

If needed, back the parking brake shoes off about 8 turns. Using a long, thin flathead screwdriver, rotate the adjuster to down to back the parking brake shoes off. Do this about 8 turns. For the driver side wheel, lever the adjuster up to expand the brake shoes. For the passenger side wheel, lever adjuster down to expand the brake shoes.

Next, using a 6mm Allen bit, remove brake rotor mounting fastener (red arrow).
Figure 9

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

Then remove brake rotor from hub.
Figure 10

Then remove brake rotor from hub.

Next, unhook the upper return spring from parking brake shoes (red arrow).
Figure 11

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.
Figure 12

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

Remove parking brake shoes from vehicle, then separate remaining parts.
Figure 13

Remove parking brake shoes from vehicle, then separate remaining parts. Inspect shoe adjuster, check that it moves freely and is not damaged (inset).

Then lightly grease brake shoe to backing plate contact points (red arrows).
Figure 14

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.

Check that the parking brake lever is correctly hooked to the parking brake cable (red arrow) before installing the brake shoes.
Figure 15

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.

Bookmark and Share

  Search our site:    

View Cart & CheckOut | Project List | Order Status |  Help    

 

[Home] [Customer Service] [Shopping Cart] [Privacy Statement]
 [Contact Us] [About Us] [Shipping] [Map to our Location] [Careers]

Copyright © Pelican Parts Inc.

Page last updated: Sat 12/3/2016 03:03:40 AM