BMW 3 Series E30

since 1983-1994 release

Repair and operation of the car

+ 1. Maintenance instruction
- 2. Maintenance
   2.2. The recommended lubricants and liquids
   2.3. Frequency of service
   2.4. Features of routine maintenance of the car
   2.5. General information on additional maintenance
   2.6. Check of level of liquids
   2.7. Check of a condition of tires and pressure in tires
   2.8. Replacement of oil in the engine and an oil filter
   2.9. Check and restoration of level of liquid in a wheel
   2.10. Check of level of liquid in automatic transmission
   2.11. Shift of wheels
   2.12. Check and replacement of hoses in a motor compartment
   2.13. Check, adjustment and replacement of belts of the drive of hinged units
   2.14. Check and adjustment of turns and quality of mix (SO) of idling
   2.15. Check of a state and battery charging
   2.16. Check and replacement of candles
   2.17. Check of high-voltage wires, runner and cover of the distributor
   2.18. Check of level of oil in the manual transmission
   2.19. Check of level of oil in the main transfer
   2.20. Check and adjustment of gaps in valves (except the M40 engine)
   2.21. Draft of a butterfly valve
   2.22. Replacement of the air filter
   2.23. Check of fuel system
   2.24. Check of the cooling system
   2.25. Check of the exhaust system
   2.26. Check of shock-absorbers, suspension bracket and steering
   2.27. Check of covers of half shafts
   2.28. Check of brakes
   2.29. Check of brushes of screen wipers
   2.30. Replacement of liquid in automatic transmission and the filter
   2.31. The cooling system – replacement of liquid and washing
   2.32. Replacement of the fuel filter
   2.33. Replacement of oil in the manual transmission
   2.34. Replacement of oil in a case of the main transfer
   2.35. Check of system of catching of vapors of gasoline (EVAP system)
   2.36. Installation of the light alarm system of need of servicing
   2.37. Replacement of a gear belt
+ 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


2.15. Check of a state and battery charging



At a battery detachment from weight be convinced that the code of a raskodirovka of the radio tape recorder is known to you. Disconnect at first a weight wire, then a wire of a positive pole.

Corrosion of a pole of the battery

Cars are completed served or unattended (late models) with batteries. The served batteries are supplied with traffic jams for a dolivaniye of the distilled water.

Care of the battery comes down to check of a condition of the case of the battery, poles and plugs, existence of dribbles of electrolyte and corrosion on adjacent metal details, to periodic check of tension and recharge.

The places struck with corrosion should be washed out solution of soda and to paint zinc soil. Plugs and poles should be cleared to gloss.
1. Remove the plug from a polar tip of the battery (at first the mass wire is removed, he joins in the last turn).
2. Clear a battery pole.
3. When cleaning the plug it is necessary to remove corrosion completely.


For recharge the battery should be removed from the car.

It is recommended to charge the battery with current no more than 2 And until tension or density of electrolyte do not cease to change within 2 hours. To charge the served battery being guided by the instruction on the case (if there is no instruction, then address to car service).

On a part of batteries there are built-in areometers of chromatic type. Electrolyte density in such battery is determined by the color chart enclosed by the manufacturer (dark coloring of the indicator usually indicates the full category of the battery). On completely charged battery tension has to be 12,6 Century.