BMW 5 series E39

Since 1996-2001 of release

Repair and car operation

+ Introduction
+ The maintenance instruction
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ The power supply system and release
- Engine electric equipment
   + Ignition system
   + System of preheat of the diesel engine
   - Charge and start systems
      Removal and installation of the storage battery
      The maloobsluzhivaemaja storage battery
      Check of the storage battery
      The self-category of the storage battery
      Gymnastics of the storage battery
      The generator - the general data
      Security measures at work with the generator
      Check of pressure of gymnastics of the generator
      Removal and generator installation
      Check and replacement of brushes of the generator and pressure regulator
      Removal and starter installation
      Removal, check and installation of the electromagnetic traction relay
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Electric equipment schemes
+ System of onboard diagnostics


The general data

The small electric motor is necessary for internal combustion engine start - a starter. That the engine was started, it is necessary for untwisting a starter to 300 rpm. It is possible only at reliable work of a starter and sufficient degree of a charge of the storage battery.

The starter consists from приводной parts, polar and collector. In a polar and collector part there is an anchor and a collector, and also щеткодержатель. In щеткодержателе there are brushes which with confluence of time wear out. At the big deterioration of brushes reliability of work of a starter decreases.

In a forward part of the case of a starter the drive gear wheel is placed. If through the ignition switch on a starter pressure the electromagnetic relay located on the case of a starter, enters into gearing with a gear wreath of a flywheel of the engine a gear wheel sitting on a shaft of a starter moves. After that the starter can untwist the engine on necessary number of turns. After start of the engine the number of its turns exceeds number of turns of a starter. The starter leaves gearing with the engine.

For engine start the big current is required. Therefore at maintenance service carrying out it is necessary to pay attention to reliable connection of cables. Available corrosion is necessary for smoothing out, and it is necessary to grease contacts with protective greasing.

The starter can be on sale as a replaceable part. It means that at acquisition of a new starter can be зачтена cost old.

1 — a casing
2 — щеткодержатель
3 — the complete set of brushes
4 — the plug
5 — a casing

6 — an excitation winding
7 — the electromagnetic relay
8 — the plug
9 — a forward cover
10 — a restrictive ring

11 — the plug
12 — the lever
13 — a gear wheel
14 — an anchor
15 — a casing