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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:

$300

Talent:

**

Tools:

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

Applicable Models:

BMW E46 3-Series (2001-06)

Parts Required:

Parking brake shoes and hardware, brake cleaner, brake grease

Hot Tip:

Wear safety goggles at all times when working around the spring-loaded shoes

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 rotor hub flange acts as the drum, while the brake shoes are mounted to the backing plate. A pair of cables attached to the parking brake handle activate the parking brake shoes. The parking brake shoes can fail. The linings can fall off and create a grinding noise. The hole where the retaining clips mount can also rust and fail. When this happens, the retaining clips pull through and parking brake shoes come in contact with brake rotor when driving. If this happens, you will need to replace the backing plate, brake shoes, hardware and rotor.

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 are 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 the wheels studs while the vehicle is on the ground but do not remove them. Lift and support the rear of the vehicle. See our Pelican Parts technical article on Jacking Up Your BMW.

Start by removing the rear wheels.
Figure 1

Start by removing the rear wheels. Next, by using a flathead screwdriver, slowly press the brake caliper piston in. This allows the brake caliper to be pulled off the brake rotor easily. I like to pry between the outer brake pad and the brake rotor. This way there is less chance of damaging the caliper piston.

Working behind the brake caliper.
Figure 2

Working behind the brake caliper. Remove the two16mm brake caliper bracket mounting bolts (green arrows). Remove the brake caliper with the bracket from the wheel carrier and hang it using a Zip Tie or a metal coat hanger. Do not allow caliper to hang by the brake hose.

Next, using a 6mm Allen bit, remove the brake rotor mounting fastener.
Figure 3

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

Next, unhook the lower return spring from the parking brake shoes (green arrow).
Figure 4

Next, unhook the lower return spring from the 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 it from the brake shoe.

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

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

Remove the parking brake shoes from the vehicle and separate the remaining parts.
Figure 6

Remove the parking brake shoes from the vehicle and separate the remaining parts.

Inspect the shoe adjuster, check that it moves freely and is not damaged.
Figure 7

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

Then lightly grease the brake shoe to the backing plate contact points (green arrows).
Figure 8

Then lightly grease the brake shoe to the backing plate contact points (green arrows).

Install the new brake shoes in reverse order of removal. Install brake rotor and brake caliper. Adjust your parking brake once the wheels are installed and tightened. See our Pelican Parts Technical Article on Adjusting Your Parking Brake for more information

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Comments and Suggestions:
Diesel Comments: Thanks, Nick. I found that article a while after I sent my request, and have managed to get the job done with Pelican's help. Clearly, BMW didn't think that their parts would ever rust out - that backing plate could ONLY have been installed as they were building the car!

I have included a photo of my "baby". Glad to have her safe again.
June 16, 2015
  Followup from the Pelican Staff: They can be a pain, the fact the whole has to come out = no fun. - Nick at Pelican Parts  
Diesel Comments: In the intro to this article, there is the statement: "The hole where the retaining clips mount can also rust and fail." The intro then notes that the backing plate may need to be replaced; but the article does not say how. I am having this exact problem. What is the fix? I can't see how to get the backing plate into place without removing the drive flange, which will destroy the bearing. What now??!
June 14, 2015
  Followup from the Pelican Staff: This article highlights the procedure:
http://www.pelicanparts.com/BMW/techarticles/BMW-3-Series-E46/97-BRAKES-Parking_Brake_Shoe_Backing_Plate_Replacement/97-BRAKES-Parking_Brake_Shoe_Backing_Plate_Replacement.htm - Nick at Pelican Parts
 
Nand Comments: I have a question about the abs/asc system on a e36 m3. I was told I need a ASC choke valve. What is that? Is that the secondary throttle housing with the tps sensor? Plz advise
October 30, 2013
  Followup from the Pelican Staff: They could be referring to the secondary throttle housing. It is the housing before the main throttle housing, located in the intake air ducts. - Nick at Pelican Parts  

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Page last updated: Thu 2/23/2017 02:21:58 AM