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


Check and replacement of brushes of a generator / regulator of tension


1 Disconnect a negative cable (-) the storage battery at the switched-off ignition. The battery is in a luggage compartment behind a cover on the right side. At BMW 316i, 318i cars the battery settles down in an impellent compartment.

As a result of shutdown of the storage battery data from memory of malfunctions of some monitors are erased. If necessary before shutdown of the battery it is necessary to consider these memories of malfunctions. Address to the Section Diagnostics of malfunctions. Work it is desirable to lead HUNDRED in conditions.

Bosch generator

2 Remove maple a belt-1-and the generator-2-, address to appropriate section.

3 Unscrew three screws of fastening-6-and remove a protective cover-5-.
4 Unscrew two screws of fastening-4-regulators of tension-3-on a back cover of the generator and carefully take out it.

5 Replace on a regulator of tension of-1-brushes-2-if their length makes 5 mm and less. For this purpose отпаяйте ropes.

6 Check wear of contact rings. If necessary process them and polish.
7 Clear contact surfaces and check rigidity of contact springs, if necessary replace them.


8 Insert brushes - And - and springs - In - in a shchetkoderzhatel - With-. Solder ropes.

9 to exclude solder hit on ropes of brushes, hold ropes flat-nose pliers.

As a result of solder hit on ropes the last become is inadmissible rigid and unsuitable for installation.

10 Near a place of the soldering of a rope the insulating tube should be fixed.
11 After installation of new brushes it is necessary to check ease of their course in a shchetkoderzhatel.
12 Fix a tension regulator at first manually, and then carefully press in final situation and fix.
13 Fix a protective casing behind the generator.
14 Establish the generator, address to appropriate section.

VALEO generator


15 Remove the generator.
16 Unscrew three screws of fastening and remove a protective cover of the generator.
17 Unscrew two screws of fastening and one nut and take out a tension regulator.


18 Establish into place a new regulator of tension with an assembly cover and slightly fix it.
19 Remove an assembly cover up.
20 Fix a protective cover.
21 Establish the generator.