BMW 3 series E46

Since 1998 of release

Repair and car operation



The BMW of 3 series Е46
+ Cars BMW 3 (Е46)
+ Current leaving and service
- The engine
   - Procedures of repair of the engine
      Removal and installation of the bottom cover of an impellent compartment
      Removal and installation of a box of an air inlet
      Compression check
      Removal and installation of the inlet pipeline
      Removal and installation of a head of cylinders / replacement of a sealing lining
      Removal and installation of camshafts
      Removal and installation of the vacuum pump
      Removal, installation and tension клинового a belt
   + System of greasing of the engine
+ Systems of cooling, heating
+ Power supply systems, injection and release
+ Engine electric equipment
+ РКПП and трансмиссионная a line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Electric equipment schemes


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Removal, installation and tension клинового a belt

Address also to Section condition Check приводных ridge belts.

By means of wide клинового a belt with edges the cranked shaft transfers movement to the pump of a cooling liquid and the generator. The 6-cylinder engine on a shaft of the pump of a cooling liquid has a fan of a radiator with вязкостной муфтой. If there is a conditioner its rotation is transferred to the compressor from an additional belt with edges. As belts are located one after another for removal of a back belt it is necessary to remove a belt being before it preliminary.

Belts stretch automatically, their pulling up is not required. Usually service life of a belt not less car service life. To replace a belt it is necessary in following cases:

- Formation of cracks.
- Occurrence of noise, for example, at проскальзывании in case of oil hit.
- In the presence of type damages: cross-section cracks in edges, holes in edges, adjournment of a dirt and inclusions of small stones between edges, разлохмачивании or deterioration of lateral surfaces of rubber edges, address also to Section condition Check приводных ridge belts.

 REMOVAL

If the removed belt is used further, it is necessary to mark on it a direction of rotation by a chalk.

Replacement клинового a belt of a drive of the compressor of the conditioner

Operation of lifting and car installation on supports is connected with danger! Therefore before operation carrying out familiarise with Razdelom Poddomkrachivanie and towage

1 Lift and establish the car on supports. Turn away bolts of fastening and remove the bottom cover of an impellent compartment, address to Section Removal and installation of the bottom cover of an impellent compartment.

2 Execution with a hydraulic tension element: Insert a face key into the screw on a tension roller. If there is a protective cap, preliminary remove it. As a result of slow rotation clockwise the hydraulic tension element-1 is compressed. Remove клиновой a belt.

3 Execution with a mechanical tension element: Wring out a tension element for шестигранник-1 in an hour hand direction. Remove клиновой a belt.

4 Put on pulleys new клиновой a belt. Thus a tension roller as at removal, turn completely to the right. The klinovoj belt should be заподлицо with pulleys and should not act sideways.
5 Slowly unload a tension roller. Force of a tension is defined by a tension element. Value of force of a tension is not regulated.
6 Establish the bottom cover of an impellent compartment. Lower the car on wheels.

Replacement клинового a belt of a drive of the generator

Models 320i, 323i, 328i


The klinovoj belt actuates the generator, the pump of a cooling liquid and the pump of the hydraulic booster of a wheel.

7 Models with the conditioner: Remove the fan of a radiator with вязкостной муфтой, address to Section Removal and installation of the fan with вязкостной муфтой.

8 Remove by means of a screw-driver a cover from a roller (the marksman on an illustration).

9 Insert a face key into the screw on a tension roller and slowly turn it in an hour hand direction (arrows on an illustration). As a result of it the hydraulic tension element acts in film. Remove клиновой a belt.

10 Put on pulleys new клиновой a belt according to the resulted scheme. Thus a tension roller pull as at removal. The klinovoj belt should lie заподлицо with pulleys and should not act sideways.

At execution with an additional tension roller-1 safety lock of turn on an axis of an additional tension roller should be fixed in a generator groove.

11 Slowly unload a tension roller. Force of a tension is defined by a tension element. Value of force of a tension is not regulated.

12 Put on a cover a tension roller.

13 Models with the conditioner: Establish the radiator fan, address to Section Removal and installation of the fan with вязкостной муфтой.

Model 320d


The klinovoj belt actuates the generator, the pump of a cooling liquid and the pump of the hydraulic booster of a wheel.

14 Remove radiator jalousie, address to Section Removal and installation of the fan / of a casing of the fan.

15 Insert a tetrahedron of the extension piece of a head on 1/2 inches as the lever into an aperture on a tension element.

Do not apply for this purpose a screw-driver. It can lead to aperture damage.

16 Slowly turn in a direction of an hour hand the head extension piece. The tension element in the compressed condition is thus compressed and insert a core, for example, a drill through an aperture-1 into an aperture of the holder.

17 Put on new клиновой a belt pulleys according to the resulted scheme, thus compress натяжитель, as is shown in an accompanying illustration. The klinovoj belt should lie заподлицо with pulleys and should not act sideways.

Generator position can differ from resulted on an accompanying illustration, but the belt lining should be such, as is shown in an illustration.

18 Unload a tension roller and remove the lever. Force of a tension is defined by a tension element. Value of force of a tension is not regulated. If the core was applied, take out it for what unload a tension element.
19 Establish radiator jalousie, address to Section Removal and installation of the fan / of a casing of the fan.