Check and replacement of the central bearing. BMW the 5th E28/E34 series (from 1981 to 1993 of release)
Repair of BMW E28 and series E34 from 1981 to 1993
1. Cars of the BMW brand of 5-series
2. Engine
3. Cooling system
4. Power supply system
5. Ignition system
6. Control systems of the engine and decrease in toxicity of the fulfilled gases
7. System of production of the fulfilled gases
8. Coupling
9. Manual box of gear shifting (RKPP) and automatic transmission (AT)
10. Transmission line
10.1. General information
10.2. Removal and driveshaft installation
10.3. Check of work and replacement of the elastic coupling
10.4. Check and replacement of the central bearing
10.5. Check and replacement of kardanny hinges
10.6. Check and replacement of a lobby of the centering directing
10.7. Replacement of the hinge of equal angular speeds of the driveshaft
10.8. Removal and installation of power shafts
10.9. Check and replacement of CV JOINTS and their protective covers
10.10. Replacement of lateral epiploons of a case of differential
10.11. Removal and installation of a casing of differential
10.12. Replacement of an epiploon of a gear wheel
11. Steering and suspension bracket
12. Brake system
13. Body
14. Control body sizes
15. Heater and air conditioner
16. System of onboard electric equipment
17. Routine maintenance of the car
18. Size table and adjusting data
19. Schematic electric circuits
20. Governing bodies and operation receptions
21. System of onboard diagnostics - a principle of functioning and codes of malfunctions


10.4. Check and replacement of the central bearing


The central bearing consists of the assembly of the ball-bearing surrounded with a rubber pillow. Bearing assembly напрессована but the back end of forward section of the driveshaft also is fixed by a lock ring the Central bearing from both parties is protected by dustproof caps, but water and dirt nevertheless can get to the bearing and destroy it. Driveshaft vibrations also can lead to a bearing exit out of operation. Carefully to examine the central bearing, it is necessary to remove the driveshaft (see. Section Removal and driveshaft installation). And on the contrary, each time, removing the driveshaft for any reason, use possibility to examine the bearing. Turn the bearing and check, how freely it rotates. If the bearing is turned hardly, or there is a feeling that sand inside got, make replacement. Examine also rubber pillow. If it cracked or wore out, replace it.



  1. Put landing labels on forward and back sections of the driveshaft.
  2. Give screws and remove the tightening plug, then separate driveshaft sections. Remove the rubber plug, a washer and the tightening plug from forward section of the driveshaft.
  3. Check a condition of the rubber plug of the shlitsevy coupling. If it is torn or cracked, replace it.
  4. Remove a lock ring of the central bearing and a boot.
1 — the Lock ring
2 — the Boot
  1. By means of a stripper remove bearing assembly.
  1. At stripper installation on assembly of the central bearing make sure that it pulls together a nave; if it pulls for an external ring of assembly, it can lead to a rupture of rubber then it is necessary to replace all assembly of the bearing.
  1. If it is required to replace the bearing or a support, assembly should be carried in a car-care center workshop since dismantling and assembly of the bearing and a support needs a press.
  2. Make sure that the boot still is on kardanny to a shaft, then напрессуйте assembly of the central support on a shaft so that it appeared aflush with a boot.
  3. On models with the driveshaft equipped with shlitsevy sections, establish on forward section of a shaft the tightening plug, a washer and the rubber plug. Grease shlitsa a disulfide - molybdenum greasing, then collect the driveshaft. Track correctness of combination of labels. Do not tighten the tightening plug while finally do not establish the driveshaft.
  4. Establish the driveshaft (see. Section Removal and driveshaft installation).
  5. On models with the driveshaft without shlitsevy sections put special blocking structure on a carving of a fixing bolt of the holder of a crosspiece of the driveshaft, then tighten a bolt with demanded effort.
  6. On models with the shlitsevy driveshaft tighten the tightening plug with demanded effort.

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10.3. Check of work and replacement of the elastic coupling
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10.5. Check and replacement of kardanny hinges