M/T - Stiff Diagonal Gear Shifts/Can't Select Gears
SI M 23 03 08
manual Transmission
May 2010
Technical service
This Service Information bulletin supersedes SI B24 03 08 dated January 2009.
[NEW] designates changes to this revision
SUBJECT
[NEW] MINI with Manual Transmission - "Stiff" Diagonal Gearshift
MODEL
R50, R52 with W10 and Getrag 5-speed manual transmissions (GS5-52BG)
[NEW] R55, R56, R57 with N12/N14 and Getrag 6-speed manual transmissions (GS6-55GB or GS6-53BG)
SITUATION
The customer may complain of a "stiff diagonal shift" (e.g., N-R, R-N, 2-3/3-2 or 4-5/5-4). Also, in some cases, gears cannot be selected, or the
selector lever does not go into the neutral position.
CAUSE
Possibly corrosion at the gearshift mechanism (shift cables or transmission gearshift unit)
SOLUTION
First verify that the shift cables operate freely by disconnecting them from the transmission gearshift unit.
If the cables move freely after disconnection, replace the transmission gearshift switching unit, using the part numbers above.
For the gearshift replacement procedure, refer to Repair Instruction REP 23 11 310.
2002-2006 Mini Cooper (R50) L4-1.6L (W10) Page 356
[NEW] PARTS INFORMATION
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