5 Series E60 520d (N47) SAL
the new "Esso UNIREX S2" grease.
The old grease "Microlube GL261 BMW" is no longer to be used.
In case of customer complaint, localize the cause by following the diagnostic aid described
The engine runs at idling speed
Depress the clutch
Try to engage 1st gear from neutral
If 1st gear is difficult to engage, hold the gear lever at the resistance point (about half total
travel) with constant force. Then switch the engine off with the other hand (ignition off).
If 1st gear is then engaged completely, i.e. the gear lever moves to the end position without
any additional pressure, there is a problem in the clutch.
Because the clutch does not uncouple completely, the transmission drive shaft transmits a
residual torque when the engine is running. This inhibits the release and meshing of the
sliding sleeve at the end of the synchronization process. Switching the engine off relieves
the drive shaft of this torque.
A completely uncoupled clutch is thus simulated.
Remedial action for diagnosis 1:
Carefully clean the transmission input shaft taper spline and guide spigot to ensure that
they are free from any residue.
Then apply the taper spline grease "Esso UNIREX 2" evenly and thinly with a paintbrush in
the entire area of the taper spline, including in the taper groove, and on the guide spigot.
Renew the drive plate.
For additional notes on troubleshooting and remedy:
Please refer to Service Information bulletin 21 01 97 (251).
If the gear lever remains at the resistance point, there is a problem in the outer gearshift
mechanism or in the transmission .
Remedial action for diagnosis 2:
troubleshooting as per cause 2.
Note on transmission installation:
Apply the taper spline grease "Esso UNIREX 2" evenly and thinly with a paintbrush in the
entire area of the taper spline, including in the taper groove, and on the guide spigot. If the
transmission is to be used again, the taper spline must be thoroughly cleaned to ensure
that it is free from any residue.
The new taper spline grease "Esso UNIREX S2" is available through the customary parts
"Esso UNIREX S2" (40g tube)
83 23 9 416 138
SI Transmission difficult to shift/diagnostic aid all model series
BMW AG - TIS
Issue status (12/2007) Valid only until next DVD is issued
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