Maintaining speed, apply the brake one notch and drive another 400 m. Release the brake and allow it to cool. This removes rust, which can form on the friction surface, and wear products.
The parking brake must be adjusted when:
- Replacement of brake pads.
- Replacing brake drums/rear brake discs.
- Installing the adjusting device back.
- Too much path traversed by the brake lever (over 10 teeth).
- Replacing the brake cable.
The parking brake cables and all moving parts of the brake must be easy to move.
Adjustment
1. Loosen one mounting bolt on each rear wheel.
2. Raise and place the rear of the vehicle on stands.
3. Remove the parking brake lever cover -1- from the top and pull it forward through the handle.
Service stations use a special tool BMW-341030 to adjust the parking brake. It consists of two socket wrenches located in each other, which are installed in two sizes: a lock nut and an adjusting nut. If the specified tool is not available, it is necessary to remove the center console, refer to Section Removal and installation of the center console.
4. Loosen two locknuts and two adjusting screws (arrows in the illustration) parking brake cables. Loosen the cables completely.
5. Completely turn out on one bolt of fastening on each back wheel. Rotate the wheel so that the hole is vertically at the bottom. Shine a flashlight into the hole, the adjusting nut should be visible in it.
The wheel should not be removed as shown in the illustration.
6. By turning the adjusting nut -1- with a screwdriver -2- make sure that the parking brake shoes are against the drum and the wheel can no longer rotate. Then turn back the adjusting nut by 10 teeth. If the adjusting nut on the left side of the vehicle is turned in the direction of the arrow, the brake pads are in contact with the drum. On the right side, the screwdriver rotates in the opposite direction.
7. After adjustment, check whether the wheels rotate freely, if necessary, unscrew the adjusting nuts. The wheels must be free to rotate.
8. Adjust the brake cables. To do this, tighten the brake lever by four teeth and screw the adjusting nuts onto the cables so that the rear wheels can still be rotated evenly by hand. Release the brake lever and check that the wheels turn freely. Repeat the adjustment if necessary.
9. Fully release the brake lever.
10. Turn on the ignition, the parking brake control lamp should not light up.
11. Tighten the brake lever one tooth. Braking on the rear wheels should not be. Otherwise, repeat the brake adjustment. The parking brake warning light may come on.
12. Tighten the brake lever two teeth. The control lamp should now light up. Otherwise, fold in the enable contact on the brake lever accordingly.
13. Turn off the ignition.
14. Tighten the locknuts while holding the adjusting nuts.
15. Install the center console, if it was filmed, refer to Section Removal and installation of the center console.
16. Lower the car on wheels.
17. Screw in two mounting bolts on the rear wheels and tighten them to 100 Nm.