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
+ 11. Running gear
+ 12. Body
+ 13. Electric equipment
- 14. Good advice
   14.2. Changed numbers
   14.3. Purchase of the old car or mysterious set of figures and letters
   14.4. Durability of the car
   14.5. About parallelism of bridges of the car and the trailer
   14.6. Preparation of the car for winter
   14.7. Rule 35
   14.8. Choice of the second-hand car
   14.9. Engine oils
   14.10. That it is necessary to know, changing oil
   14.11. Emergence in deposit oil
   14.12 whether. It is possible to mix import oils?
   14.13. "Eats" much, but silently goes
   14.14. It is rather live, than it is dead …
   14.15. It is not got - good advice
   14.16. Visit to car-care center
   14.17. A gear belt for a drive of the mechanism of a gazoraspredeleniye
   14.18. Wear of pistons
   14.19. Valves
   14.20. Bearings of engines
   14.21. Engine pollution
   14.22. As the conditioner works and what to do, if it failed
   14.23. Conditioner: not only "pluses", but also "minuses"
   14.24. Rules of service of the conditioner
   14.25. It is not necessary to stir antifreeze with antifreeze …
   14.26. That it is necessary to know upon purchase of the air filter
   14.27. Engine overheat
   14.28. That it is necessary to know to the owner of the car with the injector engine
   14.29. Accumulator
   14.30. Possible malfunctions of the storage battery
   14.31. What to do with the failed generator
   14.32. The belt is guilty, and we blame the generator
   14.33. Catalyst
   14.34. Rub in one - or how to save the catalyst
   14.35. Probuksovochka
   14.36. Features of operation of brake system
   14.37. Malfunctions of brake system
   14.38. Brake liquids
   14.39. ABS: natural choice
   14.40. Rims
   14.41. We update rims
   14.42. Scheme of marking of a car tire
   14.43. Metal corrosion
   14.44. Automake-up
   14.45. What creaks?
   14.46. Hatch
   14.47. Safety cushion: troubles or pleasures?
   14.48. We fit well?
   14.49. Anticreeping "immunodeficiency"
   14.50. Why headlights grow dull
   14.51. "Galogenki"
   14.52. About the correct adjustment of headlights
   14.53. Electric motor
   14.54. From change of places "composed" changes nothing?


14.37. Malfunctions of brake system


At your car brake shoes too quickly wear out? There was a palpation of brake disks? Do not hurry to accuse of all of a brake. Often in strangers, at first sight, the phenomena it is necessary to look for the true reasons of failure of details of brake systems.

Wheel and tire

Kolebo assembled should be faultlessly otbalansirovano. Be convinced that there is no radial and face palpation as rims, and tires. Wheel bolts should be tightened only with the ordered moment and in the correct sequence (evenly and perekrestno).

Brake mechanisms

Be convinced of a good general condition of brake systems. Protective caps should not have damages. The course of pistons, in perfect tune – directing elements (the directing plugs directing bolts, the directing planes) should be faultless. Established new blocks should possess good mobility in directing a support and fastening.

Brake shoes

Use only original brake shoes of the ATE brand (or another, allowed to application). Select them precisely according to type of the car and year of its manufacturing. Needlessly do not allow sharp braking the first 200 km after replacement of blocks to provide with it soft "running in grinding in".

Brake disks

To change brake disks follows at the same time on all axis, having taken new it is obligatory from one packing. By means of suitable solvent completely remove from a disk anticorrosive protection. Surfaces of flanges and centering openings should be pure, without agnails and damages. Do not forget that at ventilated disks it is necessary to consider the rotation directions, and it is impossible to delete balancing brackets. Centering should be made strictly observing the ordered moment and the correct sequence of an inhaling. Replacing brake disks, surely change also blocks. At emergence of difficulties прифланцуйте disks with the ordered moment of an inhaling also check face palpation by means of the strelochny indicator at distance of 10 mm from external edge of a frictional surface. If palpation too strong, whenever possible move a disk step by step to other provisions, again checking palpation.

Wheel nave

The site for a flange and an aligning opening should be smoothed out a nazhdachny cloth before emergence of metal shine. On them should not remain neither rusts, nor dirt. They should not be warped and damaged. It is not necessary to put greasing pastes (including copper). Check a site for a flange and an aligning opening on absence of palpation and on the plane. Consider that palpation of a nave involves twice bigger palpation of disks. Priflantsovyvy a brake disk, observe the recommended moment and the correct sequence of an inhaling.

Wheel suspension bracket

Levers of an independent suspension bracket should not be deformed, and saylent-blocks – soft and broken. In safety there should be rubber plugs of shock-absorbers, and shock-absorbers (or are resistant) – in a faultless working condition. Check, that corners of installation of wheels in accuracy corresponded to manufacturer requirements.

Bearings of wheels

Check degree of wear of bearings. Establish, fix and adjust them according to the manufacturer instruction.


Check steering details on wear. Heads of steering drafts should not be broken, and drafts – deformed. The steering shock-absorber (if it is present on your car) should be in a faultless working condition.