BMW 3 Series E30

since 1983-1994 release

Repair and operation of the car

+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engine
   + 3.1.2. Specifications
   + 3.2. Dismantle and capital repairs of the engine
   - 3.3. Engine electric equipment
      3.3.2. Specifications
      3.3.3. The battery - launch of the engine in emergency situations
      3.3.4. Removal and installation of the battery
      3.3.5. Power cables
      + 3.3.6. System of ignition
      - 3.3.7. System of a charge of the battery Check of system of a charge of the battery Generator Tension regulator Brushes
      + 3.3.8. System of launch of the engine
      3.3.9. Malfunctions of the generator
      3.3.10. Main malfunctions of electric equipment
+ 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

fb0c4883 Generator


1. Disconnect the battery from weight.
2. Designate and disconnect a wire from the generator. For access to the generator it is necessary to shoot the air cleaner and the measuring instrument of a stream with parts of cars.
3. Weaken bolts and take off a belt.
4. Turn off and get adjusting and axial bolts and remove the generator.


1. If you decided to replace the generator, then be convinced that new (or repaired) generator in accuracy corresponds to replaced. Pay attention to conclusions – their number, the sizes and a relative positioning has to be same, as on the replaced unit. At last, check marking. Marking has to be or is stamped on the case, or printed on a label and pasted on the case. Make sure that numbers on the new and replaced units coincide.
2. On many new (or repaired) generators there are no pulleys therefore it is necessary to rearrange a pulley from the replaced unit.
3. Installation is carried out upside-down. Adjust a belt tension.