BMW 3 Series E30

since 1983-1994 release

Repair and operation of the car



BMW E30
+ 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
         3.3.7.2. Check of system of a charge of the battery
         3.3.7.3. Generator
         3.3.7.4. Tension regulator
         3.3.7.5. 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
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3.3.7.5. Brushes

Check and replacement

PERFORMANCE ORDER
1. Disconnect the battery from weight.
Generator of Bosch
2. Remove the regulator and check length of brushes which has to be not less than 6 mm.
3. If necessary replace brushes which fasten the screw or the soldering (to solder no more than 5 sec.).
Generator of Motorola
4. Remove the generator.
5. Unscrew screws and remove the regulator and the brush holder.
6. Check length of brushes which has to be not less than 6 mm. Brushes change in a set.