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BMW 3 Series E30since 1983-1994 releaseRepair and operation of the car |
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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? 
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14:51. Galogenka
The main reason for bystry failure of halogen lamps in cars – the big current proceeding through a lamp at the time of inclusion as resistance of its thread in a cold state is many times less, than in heated. In this regard it is recommended to limit starting current by means of the additional resistor which is switched on consistently with threads of an incandescence of halogen lamps. After inclusion of a lamp it is resistance it is short-circuited by means of the relay of tension established parallel to a lamp. Lack of such devices is need of use of one or two electromagnetic relays, details not enough reliable, especially in the conditions of the car experiencing vibration. Besides, at the time of inclusion after all spasmodic increase of current, though up to the smaller size takes place, than at usual schemes of inclusion of lamps. Experts developed the contactless device which is not demanding use of the relay and providing smooth increase of current in a lamp. The device consists of the additional R1 resistor, two VD1 and VD2 diodes and the electrolytic condenser C. At inclusion of thread of passing beam on a clip 1 positive potential moves. At the same time the VD1 diode connects the condenser C parallel to lamp thread, and is consecutive with it – the R1 resistor. At inclusion of thread of driving beam positive potential moves on a clip 2, and the condenser C is connected parallel to thread of driving beam via the VD2 diode. At such scheme of connection tension on lamps of EL1 and EL2 increases smoothly. Resistance of cold threads of usual automobile lamps of near and far light approximately 10 times less their resistance in a heated state. The constant of time of heating of thread of a lamp makes 0,0014–0,003 pages. In the course of inclusion of a lamp it is necessary for an exception of unacceptably big current that the speed of increase in resistance of thread of a lamp was more than the speed of increase in tension. It is reached by installation of electrolytic condensers with a capacity of 4000-6000 мкФ, with a rated voltage of 25 V. If to take this advice, then along with increase in service life of lamps also accumulator life because of decrease in starting current and increase in smoothness of its increase will be prolonged. |
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