E30 series BMW 3

since 1983-1994 of release

Repair and car operation



E30 BMW
+ 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



10.2. Specifications

GENERAL INFORMATION

Type of brake liquid
Disk brakes:
Minimum thickness of brake shoes
Minimum admissible thickness of a brake disk (wear limit):
  – lobbies
     • continuous disks
10,7 mm
     • ventilated disks
20,0 mm
  – the back
8,0 mm
The minimum thickness of a brake disk after grinding:
  – lobbies
     • continuous disks
11,1 mm
     • ventilated disks
20,4 mm
  – the back
8,4 mm
Parallelism (difference of two measurements)
0,02 mm
Maximum palpation of a disk
0,2 mm
* the Limiting thickness is also specified on the disk
Adjusting these pedals of a brake:
  – adjustment of a pedal / rod vacuum amplifier (size A)
125 mm
  – height of a pedal of a brake (distance from a pedal to a partition of a motor compartment):
     • and/m with the left wheel
235 mm
     • and/m with the right wheel
273 mm
  – adjustment of the switch of a signal braking (size A)
5,0-6,0 mm
Hand brake:
  – minimum thickness of a block of the hand brake
1,5 mm
  – course of the lever of the hand brake
5–8 clicks

Inhaling moments (N of m)

Support of a forward disk brake:
  – directing bolts of a support
30-35
  – bolts of fastening of an arm of the case of a support to a suspension bracket rack
123
Support of a back disk brake:
  – directing bolts of a support
30-35
  – bolts of fastening of levers of a back suspension bracket on a support
67
Fastening of a brake hose to a support
14-17
Nuts of fastening of the main cylinder to the vacuum amplifier
22-24
Bolts of fastening of wheels