BMW 5 Series E39

since 1996-2001 release

Repair and operation of the car



BMW E39
+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Cooling systems, heating
+ Power supply system and release
+ Engine electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
- Brake system
   Anti-blocking system
   Removal and installation of front brake shoes
   Removal and installation of a brake disk / support of a forward brake
   Removal and installation of back brake shoes
   Removal and installation of back brake supports
   Removal and installation of a brake disk of back wheels
   Measurement of thickness of a brake disk
   Brake fluid
   Removal of air from the brake system
   Replacement of brake pipelines
   Replacement of a forward brake hose
   Check of the vacuum amplifier of a brake
   Removal and installation of brake shoes of the parking brake
   Adjustment of the parking brake
   Removal and installation of the lever of the parking brake
   Removal and installation of a cable of the parking brake
   Check and replacement of the switch of a stoplight
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment
+ System of onboard diagnostics





Removal and installation of back brake supports

If the support is disconnected only for removal of a brake disk, do not disconnect a brake hose. Otherwise after installation air has to be removed from system. Suspend a support on a wire so that not to overwind a hose and not to pull it.


 REMOVAL

1. Mark with paint the provision of a wheel concerning a nave. Thanks to it the balanced wheel can be established in former situation. Weaken bolts of fastening of a wheel on the car standing on the earth. Lift and install the car on supports and remove a wheel.
2. Slightly press a pedal of a brake and press it. For this purpose between a pedal and a seat put wooden whetstone, having shifted a seat back and then forward. Thus, after a detachment of the brake pipeline the effluence of brake fluid is excluded from the tank and hit of air in system.

3. Unscrew the brake pipeline (1) with a cap nut (2) at the coupling of a brake hose (3). At the same time hold a hose from a provorachivaniye for a hexagon (4).

At the same time a quantity of brake fluid can flow out. Collect liquid in the capacity which is intended only for brake fluid.

4. Rasstykuyte shtekerny connection of the sensor of wear at the right support (the shooter on an accompanying illustration). Do not pull for a cable.
5. Turn off fastening bolts (2) supports a cap key of 17 mm and remove with the established brake shoes from a disk.


 INSTALLATION

1. Install a support with brake shoes on a drive.
2. Tighten bolts of fastening of a support the moment of 65 Nanometers.
3. Join shtekerny connection of the sensor of wear on the right side of the car.
4. Fix a brake hose in the holder and connect a cap nut to the pipeline. At the same time you watch that the hose was not overwound. Fix a hose in the holder.
5. Remove air from system, address the Section Removal of Air from brake systems.
6. Establish and fix back wheels. Do not oil fastening bolts. Establish wheels so that the markings put at removal coincided. Lower the car on wheels, tighten fastening bolts cross-wise the moment of 100 Nanometers.

Several times strongly press a brake pedal so that resistance was felt. At the same time brake shoes will nestle on a disk and will reach the working position.

7. Check the level of brake fluid in the tank. If necessary add it to the mark MAX.
Attention, check reliability:
   a) Whether brake hoses are fixed?
   b) Whether the brake hose is fixed in the holder?
   c) Whether the union of removal of air is tightened?
   d) Whether enough brake fluid in the tank?
   e) On the working engine check tightness of system. For this purpose press a brake pedal by effort 200 - 300 N (20 - 30 kg) and you hold it during 10 pages. The effort of pressure of a pedal of a brake to a leg should not weaken.
   f) Check all connections for tightness.


Brake fluid has to be utilized in a special way.