BMW Coupes and Sedans 1970-1988 Repair Guide

Brake Shoes

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REMOVAL & INSTALLATION



1600, 2000, 2002 2500, 2800CS and 3.0 Models
  1. Remove the hub cap and loosen the lug nuts a few turns. Jack up the rear of the car and install jackstands beneath the reinforced boxmember area adjacent to the rear jacking points.
  2.  


CAUTION
Brake shoes and pads may contain asbestos, which has been determined to be a cancer causing agent. Never clean the brake surfaces with compressed air. Avoid inhaling any dust from any brake surface. When cleaning brake surfaces, use a commercially available brake cleaning fluid.

Make sure that the parking brake is released.

  1. Remove the wheel and tire assembly.
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  3. Pull off the brake drum.
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  5. Loosen the brake shoes by turning the brake adjustment screw at each backing plate clockwise (left hand side) or counterclockwise (right hand side).
  6.  
  7. Remove the cotter pin and castellated nut from the axle shaft. Using a hub puller, pull off the axle shaft drive flange.
  8.  
  9. Disconnect the brake shoe spring at the bottom of the shoes. Leave the shoes together at the bottom end, but separate the upper ends from the wheel cylinder.
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  11. Disconnect the thrust rod and parking brake cable. Lift off the brake shoes, noting their placement.
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  13. If the shoe linings are worn down to less than 0.11 inches (3mm), the shoes must be replaced.
  14.  

Always replace brake shoe in pairs.

  1. Check the wheel cylinder for leakage. If any trace of brake fluid is found, remove and overhaul the wheel cylinder as outlined in this section.
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To install:
  1. When installing the brake shoes, remember the following:
    1. Take care not to contaminate the brake linings with dirt, grease, or brake fluid.
    2.  
    3. When installation the shoes on the backing plate, insert the long end of the spring between the parking brake lever and the brake shoe.
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    5. Adjust the brakes as outlined in this section.
    6.  

  2.  

320i Models

See Figure 1



Click image to see an enlarged view

Fig. Fig. 1: If removing the rear drum on a 320i, the Allen bolt (arrow) must be removed prior to removing the drum

  1. Remove the brake drum as described above. Do not forget that on this model an Allen bolt must be removed in order to remove the drum.
  2.  
  3. With the drum removed, turn the retainers 90° and remove the retaining springs at the center of both shoes.
  4.  
  5. Disconnect the return springs at the bottom with a suitable return spring tool. Note the spring locations. Disconnect the bottoms of the shoes from the retainers.
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  7. Pull the tops of the shoes out of the brake cylinder piston rods, and pull slightly away from their mountings for clearance.
  8.  
  9. Then, disconnect the parking brake cable from the actuating hook, and remove the shoes.
  10.  
  11. Measure the brake linings. Minimum thickness is 0.11 inches (3mm). Also check the return spring for signs of heat damage and replace, if necessary.
  12.  
  13. Install in reverse order, making sure you connect the long end of the return spring between the parking brake lever and brake shoe.
  14.  
  15. Adjust the brakes as needed. Lower the vehicle.
  16.  

 
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