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
   + Power supply system
   + System of injection of the petrol engine
   - Power supply system of the diesel engine
      System of recirculation of the fulfilled gases (EGR system)
      Device of heating of the fuel filter
      Removal of air from fuel system
      Check, removal and installation of the fuel locking valve
      Removal and installation of nozzles
      Check and adjustment of the moment of the beginning of injection
      Removal and installation of the inlet pipeline
   + System of production 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
+ Schemes of electric equipment
+ System of onboard diagnostics

Device of heating of the fuel filter

At decrease in external temperature the fluidity of diesel fuel owing to paraffin loss decreases. Diesel fuel gets a honey consistence. For this reason in the winter the special additives increasing its fluidity that provides start of the engine at a temperature to - 15 °C and - 22 °C are entered into fuel (gasoline is worse than AI-95).

The specified additives are not always sufficient for steady operation of the engine. Therefore the fuel filter is equipped with electroheating. It provides preservation of properties of fuel even at a low external temperature.