Diagnostics of malfunctions of manual transmission. 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)
9.1. Manual box of gear shifting (RKPP)
9.1.1. General information
9.1.2. Removal and installation of the lever of the switch
9.1.3. Replacement of epiploons
9.1.4. Check and replacement of support of transmission
9.1.5. Removal and transmission installation
9.1.6. General information about major maintenance of transmission
9.1.7. Diagnostics of malfunctions of manual transmission
9.2. Automatic transmission (AT)
10. Transmission line
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
 








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9.1.7. Diagnostics of malfunctions of manual transmission

Symptom Possible reason
Vibrations take place The driveshaft (is damaged see. Head Transmission line).
Ovality of tires (takes place see. Head Routine maintenance of the car).
Balancing of wheels (is broken see. Heads Routine maintenance of the car and Steering).
The universal hinge of the driveshaft (is worn-out see. Head Transmission line).
The transmission established on neutral transfer publishes extraneous sounds at the working engine The coupling bearing (is worn-out vyzhimny see. Head Coupling).
The bearing of primary shaft of a transmission (is worn-out see. Head Manual box of gear shifting (RKPP)).
Transmission publishes extraneous noise only on one of transfers The gear wheels which were in continuous gearing are damaged or worn-out.
Synchronizers are damaged or worn-out.
Transmission publishes extraneous noise on all transfers Level of greasing liquid (fell see. Head Routine maintenance of the car).
Bearings are damaged or worn-out.
Primary shaft and/or secondary shaft is damaged or worn-out.
The box "comes off" the chosen transfer Draft of the mechanism of gear shifting is worn-out, or its adjustment (is broken see. Head Manual box of gear shifting (RKPP)).
Weakened bolts of fastening of transmission to the engine (see. Head Manual box of gear shifting (RKPP)).
Draft of switching (is jammed see. Head Manual box of gear shifting (RKPP)). The switching fork (is worn-out see. Head Manual box of gear shifting (RKPP)).
Leakages of transmission oil take place In a transmission a lot of transmission oil (is filled in excessively see. Heads Routine maintenance of the car and Manual box of gear shifting (RKPP)).
The holder of the bearing of primary shaft is damaged, or weakened its fastening (see. Head Manual box of gear shifting (RKPP)).
The sealing ring of the holder of the bearing of primary shaft and/or epiploon sponge (is damaged see. Head Manual box of gear shifting (RKPP)).


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9.1.6. General information about major maintenance of transmission
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9.2. Automatic transmission (AT)