BMW 5 Series E39

since 1996-2001 release

Repair and operation of the car

+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Cooling systems, heating
+ Power supply system and release
- Engine electric equipment
   + System of ignition
   + System of preheat of the diesel engine
   - Systems of a charge and start
      Removal and installation of the rechargeable battery
      The low-served rechargeable battery
      Check of the rechargeable battery
      Self-discharge of the rechargeable battery
      Charging of the rechargeable battery
      The generator - general information
      Security measures during the work with the generator
      Check of tension of charging of the generator
      Removal and installation of the generator
      Check and replacement of brushes of the generator and regulator of tension
      Removal and installation of a starter
      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
+ Schemes of electric equipment
+ System of onboard diagnostics


The low-served rechargeable battery

The car is equipped with the so-called low-served rechargeable batteries. These batteries when carrying out service demand only electrolyte addition.

At the same time it is necessary to follow the following rules:

      •  The cover of the battery has an air vent through which the battery can "breathe". To exclude an electrolyte exit, it is not necessary to incline the battery on a corner more than 45 °.

      •  For a charge of the battery ordinary chargers can be used. The battery can be charged also with the device for bystry charging. In this case the battery for a charge needs to be removed.

      •  If the electronic device is used to a charge, battery cannot remove and be not to disconnected. Electronics of the charger protects the battery from tension throws.

      •  It is necessary to use only the electronic device to a charge of strongly discharged battery. At charging ordinary devices initial current of a charge is very high that can lead to damage or even to the category of the battery.

      •  At the low level of electrolyte, for example after long stay in areas with hot climate, it is necessary to fill in the distilled water in the battery.

      •  If the car is not operated, it is necessary to charge the battery each six weeks.

      •  If the car is not operated more than six weeks, remove the rechargeable battery and you store it loaded. The recommended temperature of storage of the battery from 0 ° to +27 °C. At this temperature the battery is discharged in the minimum degree. Not later than in 3 months the battery needs to be charged. Otherwise it can fail.

      •  Regularly clear poles of the battery and grease them with vaseline or lubricant for plugs.

      •  Start from the foreign rechargeable battery should be carried out in exceptional cases since in this case the battery is affected by very big short-term overloads.