34 41 006 Adjusting parking brake

The parking brake test must be carried out on the dynamic brake analyzer as follows.

Release position:

• Wheel circumferential force right / left ≤ 300 N.

Press parking brake button:

• Car must be pulled uniformly out of brake roller or drive of brake roller is deactivated on both sides.
  Fig 1: Identifying Dynamic Brake Analyzer

  Courtesy of BMW OF NORTH AMERICA, INC.

Basic setting of the parking brake is required:

• After replacing brake shoes
• Brake discs are replaced

1. Adjustment specification for brake shoes

   Release parking brake (switch on center console).

   Approach installation position using BMW diagnosis system.

   Completely unscrew one wheel stud on each rear wheel.

   Installation: 

   Install and tighten wheel bolt.

   Tightening torque, 36 10 1AZ.

   Fig 2: Locating Wheel Bolt

   Courtesy of BMW OF NORTH AMERICA, INC.

   Turn adjusting screw with a screwdriver until it is no longer possible to turn the wheel.

   Then unfasten the adjusting screw 10 notches.

   Fig 3: Turning Adjusting Screw Using Screwdriver

   Courtesy of BMW OF NORTH AMERICA, INC.
2. Breaking-in duo-servo parking brake
   1. 2.1 On brake dynamometer: 
      1. 2.1.1 Call up breaking-in program via diagnosis interface using DIS diagnosis system.

         (Parking brake indicator lamp in instrument cluster flashes at low frequency)

      2. 2.1.2 Drive vehicle onto brake analyzer and pull parking brake button once.
      3. 2.1.3 Parking brake is applied at approx. 15 km/h with reduced force.

         (Parking brake indicator lamp in instrument cluster flashes at high frequency)

      4. 2.1.4 Breaking-in procedure takes 3 minutes.
      5. 2.1.5 Breaking-in procedure can be terminated by pressing the parking brake button.
      6. 2.1.6 Delete fault memory.
         Fig 4: DIS Diagnosis System Chart

         Courtesy of BMW OF NORTH AMERICA, INC.
   2. 2.2 When road-testing  (if possible on company property or an unused road):
      1. 2.2.1 Call up breaking-in program via diagnosis interface using DIS diagnosis system.

         (Parking brake indicator lamp in instrument cluster flashes at low frequency)

      2. 2.2.2 Pull parking brake button once.

         Increase driving speed to 15 km/h, breaking-in distance is 400 meters.

      3. 2.2.3 Parking brake is applied with reduced force.

         (Parking brake indicator lamp in instrument cluster flashes at high frequency)

      4. 2.2.4 Breaking-in procedure can be terminated by pressing the parking brake button.
      5. 2.1.6 Delete fault memory.