E39 series BMW 5

since 1996-2001 of release

Repair and car operation

+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Systems of cooling, heating
+ 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 low-served storage battery
      Check of the storage battery
      Self-category of the storage battery
      Charging of the storage battery
      The generator - general information
      Security measures at work with the generator
      Check of tension of a charging of the generator
      Removal and generator installation
      Check and replacement of brushes of the generator and tension 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

Self-category of the storage battery

Depending on the car equipment to the natural self-category of the battery current consumption by various electric devices in an idle condition is added also. Therefore in not used car not less often than once in 6 weeks it is necessary to recharge the storage battery.

If there is a suspicion on existence of currents of leak, check an onboard network as follows:


1. For check use the charged battery.

2. Switch off everything consumers, disconnect hours, close doors and a cowl. Close a trunk lid.

3. Disconnect from the storage battery a weight cable.

At a detachment of the battery records in memory of malfunctions are erased. Before shutdown of the battery familiarize with the Section Removal and installation of the storage battery.

4. Establish on the ampermeter (a range of measurement 0-5 And) the top range of measurements. Turn on the ampermeter between a negative pole of the battery (-) and a weight cable (-). Address to an accompanying illustration.

Check can be executed also control lamp. If the lamp included between weight and a negative pole of the battery, does not light up, it is necessary to apply the ampermeter surely.

5. Switch from an empire range on milliamperny until there will be an instrument reading (enough 1-3 мА).

6. Taking out consistently one safety lock behind another, disconnect the corresponding electric chains. If at disconnection of one of chains the ampermeter shows zero, there is a damage source. Damages can be: the rusted or polluted contacts, the ground electric wires, internally short circuit in units.

If in the electric chains protected by safety locks, malfunction is not found, it is necessary to disconnect wires at unprotected units, such as ignition system, the generator and a starter.

If at a detachment of one of unprotected units the ampermeter shows a zero, it is necessary to repair or replace this unit. In the presence of leakages of a current in a starter or system of ignition it is necessary to check always as well the ignition switch.

Attach a weight cable (-) to the storage battery.