BMW 3 series E30

Since 1983-1994 of release

Repair and car operation

+ 1. The maintenance instruction
+ 2. Maintenance service
- 3. The engine
   + 3.1.2. Specifications
   + 3.2. Dismantle and engine major repairs
   - 3.3. An engine electric equipment
      3.3.2. Specifications
      3.3.3. The battery - engine start-up in emergency situations
      3.3.4. Removal and battery installation
      3.3.5. Power cables
      + 3.3.6. Ignition system
      - 3.3.7. System of a charge of the battery Check of system of a charge of the battery The generator A pressure regulator Brushes
      + 3.3.8. System of start-up of the engine
      3.3.9. Malfunctions of the generator
      3.3.10. The basic malfunctions of an electric equipment
+ 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 Check of system of a charge of the battery
1. Check up a condition and a tension of a belt of the generator. At detection of signs of deterioration a belt replace.
2. Check up an inhaling of bolts of fastening of the generator and an adjusting bolt of a tension of a belt.
3. Check up conducting of the generator and a pressure regulator, reliability of fastening and a condition of sockets.
4. Check up safety locks.
5. Start the engine and check up a sound published by the generator (the howling or squealing sound specifies in deterioration of bearings or проскальзывание a belt).
6. Check up electrolit density in the battery. If density low, charge the battery (the given point does not concern unattended batteries).
7. Check up degree of a charge of the battery (at faulty section of the battery its recharge is possible).
8. Disconnect cables from the battery and check up a condition of plugs and poles.
9. Check up short circuit presence, having disconnected a cable from (-) – poles and having included between a pole and a cable a lamp. If the lamp lights up, in a car chain there is a short circuit.
10. Disconnect from the wire generator. If the lamp goes out, replace the generator. Otherwise establish a chain, consistently deleting safety locks to погасания lamps.
11. Check up pressure on the battery on the idle engine which should be about 12 Century
12. Start the engine and again check up pressure which should be now from 14–15 Century
13. Include a headlight of headlights. At normal work of system of a charge pressure should fall and again increase.
14. If pressure above than normal pressure of a charge replace a pressure regulator (see subsection If pressure below normal are faulty the rectifier, a regulator or the generator.
15. If short circuit is absent, but the battery all time is discharged, the reasons are malfunction of the battery, the rectifier, a regulator, the generator (a brush, the rectifier, windings of a rotor or статора) or a weak tension of a belt of the generator. The generator is not subject to independent repair.