1. Bend back the boot at the base of the parking brake lever and remove the parking brake cable adjustment nut, which also holds the cable to the brake lever (both are indicated by arrows). There are two cables - one for each rear wheel - and nuts for each cable. On some models, the entire center console must be removed to access these nuts.
2. Jack up the vehicle and securely place it on axle stands.
3. Remove the drum (see section Replacement of brake drum shoes) or disk (see section Inspection, removal and installation of the brake disc) rear brake mechanism.
4. On models with rear drum brakes, unhook the parking brake cable from the lever on the rear brake shoe (see section Replacement of brake drum shoes). On models with rear disc brakes, remove the parking brake shoes and actuator (see section Checking the condition, removing and installing the parking brake assembly) and unhook the parking brake cable from the actuator. To do this, pull the outer cam and disconnect it from the inner cam
...then remove the pin holding the cable on the inner cam and remove the inner cam
5. On models with rear drum brakes, pull the cable and its housing out from the back of the brake shield, then release the cable housing from the clips on the back of the trailing arm (it is easier to pull out the old cable and insert a new one with a straightened sheath than with a twisted one). On models with rear disc brakes, there is no need to disconnect the cable housing from the brake shield, but for convenience it is better to release it from the clamps and guides to reduce its bending.
6. Pull the cable out of the sheath from the wheel side.
7. Lubricate the new cable with a general purpose grease, then insert it into the housing and push it through until the end comes out at the parking brake lever.
8. Pass the cable housing through the brake shield and attach the rear end of the cable to the parking brake lever (for models with rear drum brakes) or to the actuator (for models with rear disc brakes). Make sure you do not twist the cable when connecting it.
9. Place the cable housing back into the clamps on the back of the trailing arm.
10. On models with rear drum brakes, install the brake shoes and drum (see section Replacement of brake drum shoes). On models with rear disc brakes, install the parking brake shoes and actuator (see section Checking the condition, removing and installing the parking brake assembly), as well as the rear brake disc (see section Inspection, removal and installation of the brake disc).
11. Lower the vehicle to the ground and install the adjusting nut on the parking brake lever. Adjust the parking brake cable (see section Adjusting the parking brake) and install the brake lever boot.
(The original material is located on the website «www.bmwman.ru»)