BMW 5 Series E39

since 1996-2001 release

Repair and operation of the car



BMW E39
+ Introduction
+ Maintenance instruction
+ Current leaving and service
- Engine
   - Procedures of repair of the engine
      Check of a compression
      Removal and installation of the lower guard of a motive compartment
      Removal and installation of the engine
      Removal and installation of the inlet pipeline
      Removal and installation of a head of cylinders
      Removal and installation of the camshaft
      Removal and installation of valves
      Check of the directing valves
      Processing of saddles of valves in a head cylinders / grinding in of valves
      Removal, installation and tension of a maple belt
   + Engine lubrication system
+ Cooling systems, 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
+ Schemes of electric equipment
+ System of onboard diagnostics





Removal, installation and tension of a maple belt

The drive of the pump of cooling liquid with the viscous coupling and the generator is carried out from a bent shaft through wide maple a belt. In the presence of the conditioner its compressor is set in motion from an additional maple belt. Belts are one after another. For removal of a distant belt it is necessary to remove previous.

Maple the belt should be replaced at:
   a) Fragilities of a belt and formation of cracks.
   b) Emergence of noise (for example, owing to oiling).
   c) Damages of type: cross cracks in a framework, breaks of a framework, deposits in the form of dirt and small stones between elements of a framework,
a razlokhmachivaniya or side wear of a rubber framework, address the Section Check of a Condition of Driving Belts.

If the taken-off belt is applied again, it is necessary to keep the direction of its rotation. Before removal of a belt the direction of rotation needs to be noted chalk.

Replacement of a maple compressor belt of the conditioner

All models

The compressor of cooling is set in motion by a wide maple belt which tension is carried out automatically.

 PERFORMANCE ORDER

1. Lift and install the car on supports. Turn off bolts of fastening and remove the lower facing of a motive compartment, address the Section Removal and installation of the lower guard of a motive compartment.

2. Establish on a bolt of a tension roller a key with an internal hexagon. Slow rotation clockwise the hydraulic tension element (1) contracts. Take off maple a belt. Address an accompanying illustration.

3. Put on a new belt according to the scheme of laying. At the same time as at removal turn a tension roller completely to the right. You watch correctness of laying of a belt.
4 Unload a tension roller, having released a key with an internal hexagon. Belt tension force is not regulated by a tension roller.
5 Establish the lower facing of a motive compartment. Lower the car on wheels.

Replacement of a maple belt

Models 520i/523i/528i

Maple the belt sets the generator, the pump of cooling liquid and the pump of the power steering in motion.

 PERFORMANCE ORDER

1. Remove the fan coupling with the fan, address the Section Removal and installation of the fan and coupling of the fan.

2. Uncover a tension roller. Address an accompanying illustration.

3. Insert a key with an internal hexagon into a bolt on a tension roller. Slowly turning clockwise, squeeze a hydraulic natyazhitel. Take off maple a belt.

4. Put on a new belt according to the scheme of laying. At the same time as at removal turn a tension roller completely to the right. You watch correctness of laying of a belt

5. Unload a tension roller, having released a key with an internal hexagon. Belt tension force is not regulated by a tension roller.
11 Install the fan coupling with the fan, address the Section Removal and installation of the fan and coupling of the fan.

Model 520tds

The diesel engine of the car of model 525tds has wide maple the belt setting the generator, the pump of cooling liquid and the pump of the power steering in motion.

 PERFORMANCE ORDER

1. Remove the fan coupling with the fan, address the Section Removal and installation of the fan and coupling of the fan.

2. Install rather strong screw-driver or any lever on a tension element. Press the lever, having squeezed a natyazhitel of a belt and take off a belt. Address an accompanying illustration.

3. Put on a new belt according to the scheme of laying. At the same time a tension roller as at removal, turn completely to the right. You watch correctness of laying of a belt.

4. Unload a tension roller, having released a key with an internal hexagon. Belt tension force is not regulated by a tension roller.
5. Install the fan with the viscous coupling, address the Section Removal and installation of the fan and coupling of the fan.