BMW 3 series E30

Since 1983-1994 of release

Repair and car operation

+ 1. The maintenance instruction
- 2. Maintenance service
   2.2. Recommended lubricants and liquids
   2.3. Periodicity of service
   2.4. Features of routine maintenance of the car
   2.5. The general data on additional maintenance service
   2.6. Check of level of liquids
   2.7. Check of a condition of tyres and pressure in tyres
   2.8. Oil replacement in the engine and the oil filter
   2.9. Check and restoration of level of a liquid in a wheel
   2.10. Check of level of a 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 a drive of hinged units
   2.14. Check and adjustment of turns and quality of a mix FROM) idling
   2.15. Check of a condition and battery gymnastics
   2.16. Check and replacement of candles
   2.17. Check of high-voltage wires, бегунка and distributor covers
   2.18. Check of level of oil in a manual transmission
   2.19. Check of level of oil in the main transfer
   2.20. Check and adjustment of backlashes in valves (except engine M40)
   2.21. Draught throttle заслонки
   2.22. Replacement of the air filter
   2.23. Check of fuel system
   2.24. Check of system of cooling
   2.25. Exhaust system check
   2.26. Check of shock-absorbers, a suspension bracket and a steering
   2.27. Check of covers of semiaxes
   2.28. Check of brakes
   2.29. Check of brushes of screen wipers
   2.30. Liquid replacement in automatic transmission and the filter
   2.31. Cooling system – replacement of a liquid and washing
   2.32. Replacement of the fuel filter
   2.33. Oil replacement in a manual transmission
   2.34. Oil replacement in картере the main transfer
   2.35. Check of system of catching of steams of gasoline (EVAP-system)
   2.36. Installation of the light alarm system of necessity of servicing
   2.37. Replacement of a gear belt
+ 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

2.13. Check, adjustment and replacement of belts of a drive of hinged units

Characteristic kinds of deterioration клиновидных belts
1. Cracks

2. Замасливание

3. Always check a belt condition from the inside

4. Brightness

Check of a tension of a belt

1. A deflection

2. The ruler should be perpendicular бруску

3. Брусок

4. A ruler

The quantity of belts of a drive depends on a car complete set. Belts have клиновидное section and are used for a drive of the generator, the hydraulic booster of a wheel, the pump of a cooling liquid and the conditioner. One belt can be used for a drive of several units.

Open a cowl and check up fingers a condition of belts from two parties, overwinding belts (fig. Characteristic kinds of deterioration клиновидных belts see).

Check up a belt tension on deflection size in the middle between pulleys (fig. Check of a tension of a belt see). If distance centre to centre pulleys of 180-280 mm the deflection has to be 6 mm, and at distance centre to centre 300–400 mm the deflection should be 13 mm.

1. The belt is regulated by moving of the corresponding unit to arm grooves (if the belt is connected to two units one of these units moves also).
2. Unit moving is provided with an adjusting bolt concerning an axis. These bolts it is necessary to weaken and displace the unit. On a part of cars tension adjustment is provided with rotation of an adjusting bolt after отпускания a lock bolt.
3. Having released bolts, displace the unit in the necessary party, having pulled or having released a belt, tighten bolts, check up a tension, and if the belt is adjusted correctly, bolts tighten.


For belt replacement execute the same preliminary procedures, as for adjustment then remove a belt from pulleys. All belts are recommended to be changed simultaneously. Before removal designate each belt and a corresponding pulley.

At acquisition compare a new belt to the replaced.

After run of first several hundreds kilometres check up a belt tension.