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.





[NEW] PARTS INFORMATION





WARRANTY INFORMATION