BMW 3 series E30

Since 1983-1994 of release

Repair and car operation

+ 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?

14.28. That it is necessary to know to the owner of the car with инжекторным the engine

Inzhektornye motors surpass carburettor in many parametres, to take at least their profitability and problemless start in a frost. Nevertheless, carburettor under our conditions sometimes appear more advantageous. And even some motor-car manufacturers deliver on our market of the car with such engines. All business – as gasoline which sell at us.

The inzhektornyj engine is calculated on high-grade gasoline which on our refuellings you will find not often. Besides, different systems of injection have the specific features, they are necessary for considering at car operation. And in our market it is a lot of such systems: with mechanical injection "To (КЕ)-Jetronic", electromechanical "L-Jetronic" and electronic – "Motronic", "Lucas", "Marelli".

Many systems have two operating modes: the basic and emergency – at malfunction of one of gauges. The driver can and not notice such malfunction: on the instrument panel there is no alarm signal, and the engine continues to work (but any more in an optimum mode). Similar quite often happens in "Audi-80" with the central injection. About third of the motorists having such cars, do not guess at all that go in emergency operation. And it conducts to the raised expense of fuel, decrease in capacity, rough work of the engine and the complicated start-up. Malfunction comes to light only during the next servicing. Therefore on "the weak" places of each system shown under our conditions, it is necessary to dwell.

Systems with mechanical injection. They in a greater degree, than others, are subject to physical deterioration. The regulator of pressure of fuel refuses usually through 80-120 thousand in km of run (engine start considerably worsens), an atomizer – through 60-80 thousand (rough work of the motor, the raised expense of fuel). Refusal of atomizers is especially artful, as it not at once will notice. For diagnosing and repair the special equipment is required.

Sore point of systems with electromechanical injection – подсос air through the numerous vacuum hoses tending to растрескиванию after 4–5 years of service. In particular on BMW and, in some smaller degree, on "Audi". To reveal such defect difficult enough.

At electronic systems – the problems. For example, the accumulator "has sat down", and you on an old habit have decided to "light" from other car. The electronic block as a result fails. And application этилированного gasoline, in turn, will put out of commission a ljambda-probe and the catalyst.

As a whole, both mechanical, and electronic systems of injection have the pluses and minuses. At mechanical the thicket is refused by gasoline pumps and dozatory-distributors. At electronic the gasoline pump is more durable and is cheaper, but any malfunction of the computer will cost much. Besides, the reasons for failure of any system at us, alas, more than in the Western Europe or America: poor-quality gasoline, a dirt on roads and chemicals with which them strew. Therefore it is necessary to listen to recommendations of experts. Try to use import gasoline if there is such possibility; for removal of a moisture from топливопроводов at each refuelling fill in in a tank a special preparation; through each 10 000-15 000 km of run do full washing of system of injection.

The inquiry

One more feature: any failure fixes the computer. And even after replacement of a faulty detail it will give out incorrect commands – until failure "not will erase" at the special stand.