BMW 318/325/M3/525/535/M5 1989-1993 Repair Information

Brake Shoes

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REMOVAL & INSTALLATION



See Figures 1, 2, 3, 4 and 5

E30 3 Series


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Fig. Fig. 1: Disconnect the return spring at the spreader



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Fig. Fig. 2: Pull the shoes apart at the spreader

  1. Raise and safely support the vehicle. Remove the rear tire and wheel assembly. Remove the rear brake rotors.
  2.  
  3. Using brake spring pliers, disconnect the lower return spring for the parking brake shoes. Then, using the proper tool, turn the retaining springs for the parking brake shoes 90 degrees to unlock them and remove.
  4.  
  5. Separate the parking brake shoes at the bottom and remove from above. Separate the shoes from the adjuster and spring.
  6.  

To install:
  1. Install the adjuster and spring at the shoes. Install the shoes from the top to the backing plate.
  2.  
  3. Install the retainer locks and the return spring. Install the rotor. Burnish and adjust the parking brake.
  4.  

E36 3 Series


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Fig. Fig. 3: Turn the retainer springs 90 degrees to release



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Fig. Fig. 4: The retainers are located on each brake shoe

  1. Raise and safely support the vehicle. Remove the rear tire and wheel assembly. Remove the rear brake rotors.
  2.  
  3. Using brake spring pliers, disconnect the lower return spring for the parking brake shoes. Then, using the proper tool, turn the retaining springs for the parking brake shoes 90 degrees to unlock them and remove.
  4.  
  5. Separate the parking brake shoes at the bottom and remove from above. Separate the shoes from the adjuster and spring.
  6.  

To install:
  1. Install the adjuster and spring at the shoes. Install the shoes from the top to the backing plate.
  2.  
  3. Install the retainer locks and the return spring. Install the rotor. Burnish and adjust the parking brake.
  4.  

E34 5 Series


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Fig. Fig. 5: Layout of the parking brake components

  1. Raise and safely support the vehicle. Remove the rear tire and wheel assembly. Remove the rear brake rotors.
  2.  
  3. Using brake spring pliers, disconnect the upper return spring for the parking brake shoes. Then, using the proper tool, turn the retaining springs for the parking brake shoes 90 degrees to unlock them and remove.
  4.  
  5. Separate the parking brake shoes at the top and remove from below. Separate the shoes from the adjuster and spring.
  6.  

To install:
  1. Install the adjuster and spring at the shoes. Install the shoes from the bottom to the backing plate.
  2.  
  3. Install the retainer locks and the return spring. Install the rotor. Burnish and adjust the parking brake.
  4.  

ADJUSTMENT



E30 3 Series
  1. Remove 1 lug bolt from the wheel and turn the opening so it is positioned to the rear approximately 30 degrees from the top. This is the location of the star adjuster for the brake shoes.
  2.  
  3. Use a thin bladed adjustment tool or equivalent to turn the star adjuster. On the left side, turn the star up to tighten. On the right side, turn the star down to tighten.
  4.  
  5. Turn the star until the wheel will not turn. Loosen the star 3-4 threads. Check that the wheel turn freely.
  6.  
  7. Pull the parking lever boot up in the front and pull out from the rear. Remove the rear ashtray and the underlying bolt. Pull the console back and out.
  8.  
  9. Pull the parking brake lever up 5 notches. Adjust the cables with the nuts so that the wheels can just barely be turned. Release the lever and check that the wheels spin freely. Both sides must be adjusted evenly.
  10.  
  11. The parking brake indicator lamp should extinguish when the lever is released otherwise adjust the switch so it does. Install the console and the lug bolt.
  12.  

E36 3 Series
  1. Remove 1 lug bolt from the wheel and turn the opening so it is positioned to the rear approximately 65 degrees from the top. This is the location of the star adjuster for the brake shoes.
  2.  
  3. Use a thin bladed adjustment tool or equivalent to turn the star adjuster. On the left side, turn the star up to tighten. On the right side, turn the star down to tighten.
  4.  
  5. Turn the star until the wheel will not turn. Loosen the star 18 notches. Check that the wheel turn freely.
  6.  
  7. Pull the parking lever dust cover trim up.
  8.  
  9. Pull the parking brake lever up 6 notches. Adjust the cables with the nuts so that the wheels can just barely be turned. Release the lever and check that the wheels spin freely. Both sides must be adjusted evenly.
  10.  
  11. The parking brake indicator lamp should extinguish when the lever is released otherwise adjust the switch so it does. Install The dust cover and the lug bolt.
  12.  

E34 5 Series
  1. Remove 1 lug bolt from the wheel and turn the opening so it is positioned to the rear approximately 45 degrees from the bottom. This is the location of the star adjuster for the brake shoes.
  2.  
  3. Use a thin bladed adjustment tool or equivalent to turn the star adjuster. On the left side, turn the star up to tighten. On the right side, turn the star down to tighten.
  4.  
  5. Turn the star until the wheel will not turn. Loosen the star 18 notches. Check that the wheel turn freely.
  6.  
  7. Pull the parking lever dust cover trim up.
  8.  
  9. Pull the parking brake lever up 6 notches. Adjust the cables with the nuts so that the wheels can just barely be turned. Release the lever and check that the wheels spin freely. Both sides must be adjusted evenly.
  10.  
  11. The parking brake indicator lamp should extinguish when the lever is released otherwise adjust the switch so it does. Install The dust cover and the lug bolt.
  12.  

BURNISHING



The parking brake is subjected to only limited wear and use. Often the friction surfaces become corroded and cause a loss of braking performance. This can often be cured by burnishing the parking brakes and the performance will return.

This procedure should also be performed whenever new shoes or rotors are installed and before the parking brake adjustment is made.

  1. While driving the car at 25 mph (40 km/h) pull the parking brake lever until braking is felt. Pull the lever 1 more notch and drive the car 1300 ft. (400 m) to the working area.
  2.  
  3. Adjust the parking brake.
  4.  
  5. Check the performance of the parking brake.
  6.  

 
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