E39 series BMW 5

since 1996-2001 of release

Repair and car operation

+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Systems of cooling, 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 production of the fulfilled gases
      Operation of the catalytic converter
      Security measures for cars with the catalytic converter
      Removal and installation of system of release
      Replacement of the main exhaust silencer
      Removal and installation of the sensor 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

датчики абсолютного давления МИДА ДА.

Check of tightness of system of release

The leakage of system of release with the catalytic converter in front of the sensor of oxygen can result in such malfunctions, as difficulty at engine start. Thus the engine stops, vibrates idling, increases number of turns breakthroughs.

Check condition: The engine should be cold or slightly warm.


1. Start the engine and check release system on tightness. Close an exhaust pipe rags. Check existence of leakages of the fulfilled gases through flange connections (aurally - on hissing - or a hand).

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