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
   + System of injection of the petrol engine
   + The power supply system of the diesel engine
   - System of release of the fulfilled gases
      Work каталитического the converter
      Security measures for cars with каталитическим the converter
      Removal and installation of system of release
      Replacement of the basic muffler
      Removal and installation of the gauge of oxygen
      Check of tightness of system of release
+ 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

Check of tightness of system of release

Негерметичность systems of release with каталитическим the converter in front of the oxygen gauge can lead to such malfunctions, as difficulty at engine start. Thus the engine stops, vibrates idling, increases number of turns jerky.

Check condition: the Engine should be cold or slightly warm.


1. Start the engine and check up release system on tightness. Close an exhaust pipe rags. Check up presence of leaks of the fulfilled gases through фланцевые connections (on hearing - on hissing - or a hand).

2. Spray a spray of a place of connections of a head of cylinders with a final collector and a collector with a reception pipe and check up presence of bubbles.