BMW 3 series E30

Since 1983-1994 of release

Repair and car operation



BMW E30
+ 1. The maintenance instruction
+ 2. Maintenance service
+ 3. The engine
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. An exhaust system
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. A running gear
+ 12. A body
+ 13. An electric equipment
- 14. A good advice
   14.2. Changed numbers
   14.3. Purchase of the old car or a 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. A rule 35
   14.8. A choice of the second-hand car
   14.9. Engine oils
   14.10. That it is necessary to know, changing oil
   14.11. Occurrence in deposit oil
   14.12. Whether it is possible to mix import oils?
   14.13. "Eats" much, but silently goes
   14.14. It is more likely live, than it is dead …
   14.15. It is not got - a good advice
   14.16. Visit to car-care centre
   14.17. A gear belt for a mechanism drive газораспределения
   14.18. Deterioration 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 has failed
   14.23. The 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 at purchase of the air filter
   14.27. An engine overheat
   14.28. That it is necessary to know to the owner of the car with инжекторным the engine
   14.29. The 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. The catalyst
   14.34. Three in one - or how to save the catalyst
   14.35. Пробуксовочка
   14.36. Features of operation of brake system
   14.37. Malfunctions of brake system
   14.38. Brake liquids
   14.39. АБС: a natural choice
   14.40. Wheel disks
   14.41. We update wheel disks
   14.42. The scheme of marks of an automobile tyre
   14.43. Metal corrosion
   14.44. An automake-up
   14.45. What creaks?
   14.46. The hatch
   14.47. A safety pillow: troubles or pleasures?
   14.48. We fit well?
   14.49. Anticreeping "immunodeficiency"
   14.50. Why headlights grow dull
   14.51. "Галогенки"
   14.52. About correct adjustment of headlights
   14.53. The electric motor
   14.54. From change of places "composed" varies nothing?
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14.35. Пробуксовочка
THE GENERAL DATA

"Than proslipping of coupling or its incomplete deenergizing at pressing a pedal can be caused?"

Coupling proslipping is shown that at quite serviceable engine the car badly overcomes liftings, slowly dispersed. It can be caused замасливанием disks, their strong deterioration, decrease in elasticity of springs, absence of a free wheeling of a pedal of coupling.

Incomplete deenergizing of coupling causes difficulty and noise at a gear change and can lead to premature failure of synchronizers and to the accelerated deterioration of teeths of a transmission. This malfunction arises at pollution, a warp or deformation of disks, wrong adjustment of position of levers of deenergizing, and also at too big free wheeling of a pedal of coupling more often.

It is necessary to have in view of that noise in a transmission is not always a consequence of incomplete deenergizing of coupling. This noise can arise at deterioration or wrong adjustment of bearings, and also at deterioration or wrong gearing of conic gear wheels. Strong knock in the specified places speaks about presence of the serious malfunction demanding an immediate stop of the car and repair of the unit.

"Than can be caused затрудненность gear changes or their spontaneous deenergizing?"

Difficulty of a gear change or their spontaneous deenergizing – result of deterioration of locks and clamps or a drive of the mechanism of a gear change. Here without serious repair not to manage.

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