E30 series BMW 3

since 1983-1994 of release

Repair and car operation



E30 BMW
+ 1. Maintenance instruction
- 2. Maintenance
   2.2. Recommended lubricants and liquids
   2.3. Periodicity of service
   2.4. Features of routine maintenance of the car
   2.5. General information on additional maintenance
   2.6. Check of level of liquids
   2.7. Check of a condition of tires and pressure in tires
   2.8. Oil replacement in the engine and the oil filter
   2.9. Check and restoration of level of liquid in a wheel
   2.10. Check of level of liquid in automatic transmission
   2.11. Shift of wheels
   2.12. Check and replacement of hoses in a motor compartment
   2.13. Check, adjustment and replacement of belts of a drive of hinged units
   2.14. Check and adjustment of turns and quality of a mix (FROM) idling
   2.15. Check of a condition and battery charging
   2.16. Check and replacement of candles
   2.17. Check of high-voltage wires, begunka and distributor covers
   2.18. Check of level of oil in a manual transmission
   2.19. Check of level of oil in the main transfer
   2.20. Check and adjustment of gaps in valves (except the M40 engine)
   2.21. Draft of a butterfly valve
   2.22. Replacement of the air filter
   2.23. Check of fuel system
   2.24. Check of system of cooling
   2.25. Check of an exhaust system
   2.26. Check of shock-absorbers, suspension bracket and steering
   2.27. Check of covers of semi-axes
   2.28. Check of brakes
   2.29. Check of brushes of screen wipers
   2.30. Liquid replacement in automatic transmission and the filter
   2.31. Cooling system – replacement of liquid and washing
   2.32. Replacement of the fuel filter
   2.33. Oil replacement in a manual transmission
   2.34. Oil replacement in a case of the main transfer
   2.35. Check of system of catching паров gasoline (EVAP system)
   2.36. Installation of the light alarm system of need of servicing
   2.37. Replacement of a gear belt
+ 3. Engine
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. Exhaust system
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. Running gear
+ 12. Body
+ 13. Electric equipment
+ 14. Good advice



2.28. Check of brakes

GENERAL INFORMATION

Prevention

Besides periodic check of a brake it is necessary to check each time at wheel removal, or at suspicions on their malfunction.


The system of brakes of considered cars is equipped with wear sensors with the light alarm system. Fire of a control lamp of brakes indicates need of immediate replacement of blocks.

To need of immediate check of brakes point lateral drift of the car when braking, an excessive course of a pedal of a brake, a pulsation of a pedal of a brake (is the normal phenomenon at ABS system operation), podtekany liquids.
PERFORMANCE ORDER
Hoses and tubes
1. Lift the car and remove wheels. Check existence on hoses of cracks, swelling and other damages. Check existence of podtekaniye on unions of tubes and hoses. Replace the damaged details.
Disk brakes
2. Quickly to check residual thickness of a material of slips on blocks of brakes it is possible through a window in a support of a forward brake. If residual thickness at least one slip less than 2,0 mm, or wear of slips non-uniform, replace all four blocks in a set.
3. Check a disk condition, having removed a support (see subsection 10.5). At detection задиров, the painted sites (traces of a strong warming up), traces of deep development, remove a disk and прошлифуйте or replace both disks (see subsection 10.6).
Drum-type brakes
4. Remove a drum (see subsection 10.7).
5. Check thickness of brake overlays of back blocks and their condition. If thickness of kleeny slips less than 2,0 mm (or distance from slips to heads of rivets less than 2,0 mm), slips replace in a set with an axis. It is necessary to replace slips also at detection of cracks, a glossy surface, or at pollution by brake liquid or greasing.
6. Check a condition of springs and the regulator mechanism.
7. Check existence of traces of podtekaniye of brake liquid on wheel cylinders for what carefully hook and take away an external sealant of the cylinder.
8. If under a sealant traces of brake liquid are found, replace the cylinder or a sealant (see subsection 10.8).
9. Check existence on drums of deep development, cracks, furrows and the painted sites. If it is impossible to remove defects with an emery paper, drums should be removed and pierced.
Hand brake
10. The hand brake should be adjusted, if the car does not keep on an abrupt bias (see subsection 10.11).