E30 series BMW 3

since 1983-1994 of release

Repair and car operation

+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engine
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. Exhaust system
+ 8. Transmissions
+ 9. Coupling
- 10. Brake system
   10.2. Specifications
   10.3. Anti-blocking system (ABS)
   10.4. Blocks of disk brakes
   10.5. Support of a disk brake
   10.6. Brake disk
   10.7. Blocks of drum-type brakes
   10.8. Main cylinder of brakes
   10.9. Vacuum amplifier of brakes
   10.10. Cable (ы) hand brake
   10.11. Adjustment of the hand brake
   10.12. Mechanism of the hand brake
   10.13. Brake pedal
   10.14. Switch of a signal of braking
   10.15. Hoses and lines of a hydraulic actuator of brakes
   10.16. Air removal from a hydraulic actuator of brakes
+ 11. Running gear
+ 12. Body
+ 13. Electric equipment
+ 14. Good advice


10.5. Support of a disk brake



It is recommended to get the restored supports in exchange for the removed. If the decision on repair (replacement of details of a support) is made, get ремкомплект. It is necessary to assort and repair both supports at the same time.

Back support

1. Support assembled
2. Bolt of fastening of an arm of a support
3. Pumping union
4. Dustproof cap
5. Antinoise spring
6. Directing a support
7. Wire of a control lamp of wear of a block
8. Bracket of fastening of a cover of a cable
9. Brake disk
10. A bolt with an internal 6-faced head
11. Brake board
12. Bolt
13. Washer
14. Cap
15. Cap
16. Arm
17. Bracket of fastening of a cover of a cable
18. Piston, cuff, cover and spring ring
19. Ремкомплект directing plugs
20. Blocks


1. Lift a forward (back) part of the car, establish on supports, remove a wheel.
2. Disconnect and muffle a brake hose. If the support acts in film for access to other details, a hose do not disconnect.
3. The order of removal of a forward or back support is described in subsection 10.4 as a part of procedure on replacement of blocks.


1. Remove a spring ring of a dustproof cover and a rubber cover.
2. Remove the piston, having submitted to the cylinder the compressed air from the pump.
3. Check piston and cylinder surfaces. At existence of damages (scratches, corrosion, a vykrashivaniye) replace a support assembled.
4. If these details as it should be, remove a piston cuff, using the thin wooden tool.
5. Remove rubber cuffs.
6. Wash out all details in methyl alcohol or a cleaner of brakes.
7. Using ремкомплект, collect a support as shown below.
8. Dip a new cuff into brake liquid and establish in the cylinder.
9. Grease cylinders of supports (except forward supports) and the piston with pure brake liquid. Enter the piston into the cylinder without distortions. Establish a new dustproof cover and fix a spring ring.
10. At assembly of forward supports grease the piston with pure brake liquid and dress a new dustproof cover on the lower part of the piston. Holding the piston over a support opening, get edges of a rubber cover in cylinder flutes, enter the piston against the stop, then get the top edges of a cover in a flute on the piston.
11. Grease with silicone greasing rubbing surfaces directing and bolts and establish them in a support. Establish dustproof covers.


1. Installation of a support is carried out upside-down.

Check a condition of bolts of a support, if necessary replace.

2. Attach a hose and remove air from an understanding contour.