BMW 3 Series E30

since 1983-1994 release

Repair and operation of the car



BMW E30
+ 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. Useful tips
   14.2. The 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 trailer
   14.6. Preparation of the car for winter
   14.7. Rule 35
   14.8. Choice of the used car
   14.9. Engine oils
   14:10. What needs to be known, changing oil
   14:11. Emergence in deposit oil
   14:12. Whether it is possible to mix import oils?
   14:13. "Eats" much, but quietly goes
   14:14. It is rather live, than is dead …
   14:15. It is not got - useful tips
   14:16. Visit to car service
   14:17. A gear belt for the gas distribution mechanism drive
   14:18. Wear of pistons
   14:19. Valves
   14:20. Bearings of engines
   14:21. Pollution of the engine
   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. Antifreeze you should not disturb with antifreeze …
   14:26. What should be known upon purchase of the air filter
   14:27. Engine overheat
   14:28. What should be known to the owner of the car with the injector engine
   14:29. Accumulator
   14:30. Possible malfunctions of the rechargeable 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 the brake system
   14:37. Malfunctions of the brake system
   14:38. Brake fluids
   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. Galogenka
   14:52. About the correct adjustment of headlights
   14:53. Electric motor
   14:54. From change of the places "composed" nothing changes?



14:35. Probuksovochka

GENERAL INFORMATION

"What can cause pro-slipping of coupling or its incomplete switching off when pressing a pedal?"

Pro-slipping of coupling is shown that at quite serviceable engine the car badly overcomes rises, slowly disperses. It can be caused by oiling of disks, their strong wear, decrease in elasticity of springs, lack of a free wheeling of a pedal of coupling.

Incomplete switching off of coupling causes difficulty and noise at gear shifting and can lead to premature failure of synchronizers and to the accelerated wear of teeths of the transmission. This malfunction most often arises at pollution, a distortion or deformation of disks, the wrong adjustment of position of levers of switching off, and also at too big free wheeling of a pedal of coupling.

It must be kept in mind that noise in the transmission is not always a consequence of incomplete switching off of coupling. This noise can arise at wear or the wrong adjustment of bearings, and also at wear or the wrong gearing of conic gear wheels. The strong knock in the specified places speaks about existence of the serious malfunction demanding an immediate stop of the car and repair of the unit.

"What can cause a zatrudnennost of gear shifting or their spontaneous switching off?"

Difficulty of gear shifting or their spontaneous switching off – result of wear of locks and clamps or the drive of the mechanism of gear shifting. Here not to do without serious repair.

It is possible to prevent similar malfunctions the next ways: periodically carefully to check reliability of fastening of all units and details of the power transmission, and also to watch oil level in the transmission and in due time to change it.