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
   - The power supply system
      Economy of fuel at movement
      Rules of observance of cleanliness at work with fuel system
      Check of the relay of the fuel pump
      Check of productivity of the fuel pump
      Removal and installation of the gauge of a reserve of fuel and the fuel pump
      Removal and installation of the case of the air filter and measuring instrument of weight of air
   + System of injection of the petrol engine
   + The power supply system of the diesel engine
   + System of release of the fulfilled gases
+ Engine electric equipment
+ 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 power supply system

The general data

Fuel tank

1 — a fuel tank
2 — the shock-absorber
3 — a nut
4 — a bolt
5 — the plug

6 — a collar right (at the left similar)
7 — демпфер
8 — a collar
9 — a bulk pipe
10 — a stopper
11 — a lining

The power supply system consists of a fuel tank, the fuel pump which is in a tank, and топливопроводов, and also the fuel and air filter. Systems of injection of petrol and diesel engines are described in different sections.

The fuel tank - plastic, capacity 70 l, is fixed by collars under a back seat, before a back suspension bracket. The tank is divided into two compartments.

The tank is connected with atmosphere through an adsorber. The adsorber is behind an internal wing of a back. The fuel reserve is shown on the panel of devices by the indicator. Thus fuel level is measured separately for each chamber by means of the lever gauge. The microprocessor in the block of the panel of devices on the basis of impulses of injection, speed of movement and electronic signals of the lever gauge counts current volume of fuel in a tank.