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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 Z3 (1996-02)

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

The parking brake is a drum system that is integrated into the rear brakes. The rear brake rotor hub acts as the drum, and the brake shoes are mounted to the backing plate. A pair of cables attached to the parking brake lever activates the parking brake shoes. 

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 the 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 the 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 you're 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. Do you have 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 the rear of the vehicle. See our tech article on jacking up your vehicle.

Remove the rear wheels.

Working in the vehicle interior, pull the rear of the parking brake handle trim cover off.
Figure 1

Working in the vehicle interior, pull the rear of the parking brake handle trim cover off. Then pull it up and away from center console to expose the parking brake lever.

Then loosen the two 9mm nuts (green arrows) on the cable adjusters.
Figure 2

Then loosen the two 9mm nuts (green arrows) on the cable adjusters. If needed, counter-hold the 12mm hex behind them. Loosen them until they are at the end of the stud.

Using a flathead screwdriver, remove brake caliper anti-rattle spring (green arrow) by prying out while securing with hand.
Figure 3

Using a flathead screwdriver, remove brake caliper anti-rattle spring (green 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 4

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.
Figure 5

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

Next, using a 6mm Allen bit, remove brake rotor mounting fastener.
Figure 6

Next, using a 6mm Allen bit, remove brake rotor mounting fastener. Then remove brake rotor from hub. (green arrow)

Slide the brake rotor off the hub.
Figure 7

Slide the brake rotor off the hub. If it doesn't come off, this is where you will have to back off the adjusters or cables. See the steps 1 and 2 mentioned earlier or our tech article on parking brake adjusting.

Next, unhook lower return spring from parking brake shoes.
Figure 8

Next, unhook lower return spring from parking brake shoes. (green arrow) I like to use an old pair of diagonal cutters, with worn out cutting jaws. Grab the spring, pull it down 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 9

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. (green arrow)

Remove parking brake shoes from vehicle, then separate remaining parts.
Figure 10

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

Inspect shoe adjuster, check that it moves freely and is not damaged.
Figure 11

Inspect shoe adjuster, check that it moves freely and is not damaged.

Then lightly grease brake shoe to backing plate contact points.
Figure 12

Then lightly grease brake shoe to backing plate contact points. (green arrows) This photo shows rear contact points. Apply grease to area for front parking brake shoe also. Use caution so as not to get any grease on the actual 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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Page last updated: Fri 12/9/2016 02:06:44 AM