E46 series BMW 3

since 1998 of release

Repair and car operation

E46 series BMW 3
+ BMW 3 Cars (E46)
+ Current leaving and service
+ Engine
+ Systems of cooling, heating
+ Power supply systems, injection and release
- Engine electric equipment
   General information and security measures
   + System of electronic control by ignition and injection of the petrol engine
   + ignition System
   + System of preheat of the diesel engine
   - Charge and start systems
      General information on system
      The battery - the main data and leaving
      Removal and installation of the storage battery
      Check of the storage battery
      Generator. General information and security measures
      Removal and generator installation
      Check and replacement of brushes of a generator / regulator of tension
      Removal and installation, starter check
      Removal, installation and check of the traction relay of a starter
+ RKPP and transmission line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ electric equipment Schemes


Generator. General information and security measures

Before making any works on charging system, it is necessary to familiarize with the following security measures:

1 Never disconnect the battery or a tension regulator when the engine and the generator work.
2 Never close the plug of excitement of the generator or the cable fixed on it on weight.
3 Never confuse wires of a regulator of tension.
4 Never include a tension regulator if it is connected to weight (instant damage).
5 Never remove the generator if the battery is not disconnected from a contour.
6 At installation of the battery watch, that the minus plug was connected to weight.
7 Never use the indicator of tension which is connected directly in a household network (110 or 220 In). Use only the indicator for 12 Century.
8 If the battery is charged in the established condition by the charger, both cables of the battery should be disconnected. The positive plug of the charger to connect to the positive plug of the battery, and the negative plug of the charger with the negative plug of the battery.
9 Wrong connection of wires leads to destruction of the rectifier and a tension regulator.

Check of the established generator

At normal movement the lamp of control of a charge should go out. Otherwise, malfunction consists in the generator or a tension regulator.
First, check electric connections of the generator. Check, whether correctly will pull a driving belt. Further check can be carried out only on the removed generator, however it is possible to check all safety locks previously.


Bearings of the generator have long-term greasing and do not demand regular maintenance. To keep outer side of the generator clean and not to allow hit on it of water or other dissolving means.