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?


14.23. Conditioner: not only "pluses", but also "minuses"


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

At the same time, during preselling preparation at the majority of second-hand foreign cars ("Audi 100", "VW Passat GT", "Opel Omega 2,6"), equipped with the conditioner, at control of the engine comes to light inadmissible decrease in a compression in separate cylinders (about 5,5-7,5 atm.). Thus 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, the indirect reason of that was its overheat. It is possible to explain it only to that engines in the cars equipped with the conditioner, wear out quicker because of rather high loading created by it at 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 "idling" mode. In this mode cooling liquid circulates slowly, besides, the radiator of the heat exchanger established under a cowl intensively "warms up" the engine, selecting at it capacity.

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

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