BMW 3 Series E46

since 1998 release

Repair and operation of the car



BMW 3 Series E46
+ BMW 3 cars (E46)
+ Current leaving and service
+ Engine
+ Cooling systems, 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
   + System of ignition
   + System of preheat of the diesel engine
   - Systems of a charge and start
      General information on system
      The battery - the main data and leaving
      Removal and installation of the rechargeable battery
      Check of the rechargeable battery
      Generator. General information and security measures
      Removal and installation of the generator
      Check and replacement of brushes of the generator / regulator of tension
      Removal and installation, check of a starter
      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
+ Schemes of electric equipment





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

 REMOVAL

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

As a result of shutdown of the rechargeable 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 the Section Diagnostics of Malfunctions. Work it is desirable to carry out HUNDRED in conditions.

Bosch generator

2 Take off maple a belt-1-and the generator-2-, address 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-1 brushes-2-on tension regulator if their length makes 5 mm and less. For this purpose unsolder 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.


 INSTALLATION

8 Insert brushes - And - and springs - In - into the brush holder - With-. Solder ropes.

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

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

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


VALEO generator

 REMOVAL

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 tension regulator.


 INSTALLATION

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








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