Charging and starting systems BMW 7 Series E38

General information about the charge and start system
General information The electrical system of the vehicles discussed in this manual operates with voltage 12 V . The ground connection goes through the negative...

Battery — general information, maintenance recommendations
The battery installed on the car consists of six cans, in which positive and negative plates are placed (lamellas), immersed in a solution of sulfuric acid....

Charging system — general information and safety measures
The vehicles in question use an alternator. When installing additional electrical equipment, check that the generator has enough power to provide electricity...

Removal and installation of the generator
When working on the oil, fuel and coolant circuits, the generator must be protected from contamination. 1. Disconnect the negative cable from the battery. 2....

Replacing the voltage regulator
Remove generator (see Section Removal and installation of the generator ). Models with engines other than M57 1. Give fasteners of a cover of a voltage...

Engine starting system — general information and precautions
General information The only task of the engine starting system is to ensure that the engine rotates at a speed sufficient to start it. The starting system...

Removal and installation of a starter
The description below is for models with M51 and M52 engines. On models with other engines, the starter is removed and installed in the same way. 1. Disconnect...

Replacing the traction relay
1. Remove the starter (see Section Removal and installation of a starter ). 2. Give the nut (1) and remove the cable lug (2). When tightening, do not twist the...