BMW 3 series E46

Since 1998 of release

Repair and car operation

The BMW of 3 series Е46
+ Cars BMW 3 (Е46)
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ Power supply systems, injection and release
- Engine electric equipment
   The 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
      The general information on system
      The battery - the basic data and leaving
      Removal and installation of the storage battery
      Check of the storage battery
      The generator. The general data and security measures
      Removal and generator installation
      Check and replacement of brushes of the generator / of a regulator of pressure
      Removal and installation, starter check
      Removal, installation and check of the traction relay of a starter
+ Manual transmission and transmission a 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 the generator / of a regulator of pressure


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 cars BMW 316i, 318i the battery settles down in an impellent compartment.

As a result of switching-off of the storage battery the data from memory of malfunctions of some monitors is erased. If necessary before battery switching-off it is necessary to consider the given memories of malfunctions. Address to Section Diagnostics of malfunctions. Work it is desirable to spend HUNDRED in conditions.

Generator Bosch

2 Remove клиновой a belt-1 and the generator-2, address to corresponding section.

3 Turn away three screws of fastening-6 and remove a protective cover-5.
4 Turn away two screws of fastening-4 regulators of pressure-3 on a back cover of the generator and cautiously take out it.

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

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


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

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

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

10 Near to a place of the soldering of a rope the tube should be fixed изоляционная.
11 After installation of new brushes it is necessary to check up ease of their course in щеткодержателе.
12 Fix a pressure regulator at first manually, and then cautiously press in definitive position and fix.
13 Fix a protective casing behind the generator.
14 Establish the generator, address to corresponding section.

Generator VALEO


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


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