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?



14:23. Conditioner: not only "pluses", but also "minuses"

GENERAL INFORMATION

Dynamics of demand for second-hand foreign cars speaks about the aspiration of future car owners to have the car with the greatest possible quantity of options. One of them is existence of the conditioner. Even in case the picked-up car according to the main requirements satisfies the motorist, but has no conditioner, the application for its additional installation often follows though it costs $1,5 thousand.

At the same time, during pre-sale preparation at the majority of the second-hand foreign cars ("Audi 100", "VW Passat GT", "Opel Omega 2,6") equipped with the conditioner at control of the engine inadmissible decrease in a compression in separate cylinders comes to light (about 5,5-7,5 atm.). At the same time the run of some cars of 1994 of release on which at least in one of cylinders there was an inadmissible decrease in a compression made 50–70 thousand km. As a rule, it occurred in the last cylinder of the engine, its overheat was the indirect reason of what. It can be explained only with the fact that engines in the cars equipped with the conditioner wear out quicker because of rather high loading created by it during the work. The systematic overheat results in premature wear of piston rings.

Fans of "an automobile cool" should remember that the most dangerous to the engine in hot weather is the mode of "idling". In this mode cooling liquid circulates slowly, besides, the heat exchanger radiator established under a cowl intensively "warms up" the engine, taking away from him power.

Owners of "Audi" equipped with the conditioner can have an additional problem connected with need of replacement of a belt of the drive of the heat exchanger through each 60 thousand km of a run. This in general simple operation can be made only at the removed conditioner radiator, according to the subsequent filling with freon that several times will increase working costs. And will undertake it not in each service.

Undoubtedly, it is good to have the conditioner, but before to order it, properly weigh all pros and cons.

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