BMW 5 series E39

Since 1996-2001 of release

Repair and car operation


BMW E39
+ Introduction
+ The maintenance instruction
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ The power supply system and release
- Engine electric equipment
   + Ignition system
   - System of preheat of the diesel engine
      Check, removal and installation of candles накаливания
      Check, removal and installation of the relay of preheat
   + Charge and start systems
+ 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

System of preheat of the diesel engine

The general description

At low temperature of the engine spontaneous ignition of fuel at the expense of high degree of compression appears impossible. The additional heating of fuel therefore is required.

With that end in view the candle is rolled in each chamber of combustion накаливания. The candle consists of the case with запрессованным in it a heating core. At giving on a pressure candle the heating element within several seconds heats up to temperature from above 850С that provides preparation of the engine for start during no more 5 with. After deenergizing of a control lamp of heating on the panel of devices the engine is ready to start.

Duration of process of heating and additional automatic heating after engine start (to 20) is regulated by block DDE through the relay of preliminary heating. The scheme of preliminary heating is resulted in the end of the Management.