E39 series BMW 5

since 1996-2001 of release

Repair and car operation

+ Introduction
+ Maintenance instruction
+ Current leaving and service
- Engine
   + Procedures of repair of the engine
   - System of greasing of the engine
      Scheme of a contour of circulation of oil
      Check of pressure of oil
      Removal and installation of the pallet of a case
      Removal, installation and check of the oil pump
+ Systems of cooling, heating
+ Power supply system and 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

Scheme of a contour of circulation of oil

BMW engines have greasing under pressure. The oil pump sucks in oil through a grid from the pallet of a case and submits it under pressure to system via the oil filter. Through the central axis of the filtering boss the cleared oil arrives to the trunk oil main. If the filter is littered, oil through perepuskny the valve arrives directly in system without cleaning.

After the oil filter the reduktsionny valve supporting pressure near the 4th bar is established. At increase of pressure of oil the valve opens and merges oil in the case pallet.

From the trunk main there are branches for greasing of bearings of a cranked shaft. Via inclined channels oil moves to shatunny bearings and from there to the bottoms of pistons and to cylinders.

At the same time impellent oil through vertical tubes moves in a head of cylinders, greasing there bearings of camshafts, jacks of klapanny gaps and directing valves. Throttle channels provide giving of necessary amount of oil for greasing listed above elements in a head of cylinders.

Besides, oil arrives to a chain of a drive of the mechanism of distribution with a natyazhitel and at the petrol engine to a driving chain of the oil pump.