M/T - Stiff 'Diagonal' Gear Shifts
SI M 23 01 08Manual Transmission
January 2009
Technical Service
This Service Information bulletin supersedes SI M23 01 08 dated July 2008.
[NEW] designates changes to this revision
SUBJECT
R55, R56 with Manual Transmission - "Stiff" Diagonal Gearshift
MODEL
R55, R56 with N12/N14 and Getrag 6-speed manual transmissions (GS6-53BG/55BG)
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 gear does not go into the neutral position.
[NEW] CAUSE
1. The deflection lever circlip of the gearshift mechanism is damaged or missing.
2. Possible corrosion at the gearshift mechanism (shift cables or transmission gearshift unit)
[NEW] SOLUTION
First verify that the shift cables operate freely by disconnecting them from the transmission gearshift unit.
1. Inspect the shifting gear mechanism deflection lever for the missing or damaged circlip (1) and the plastic sliding sleeve (2).
2. Install or replace, if needed, using new parts P/N 23 11 7 593 200 (circlip) and P/N 23 11 7 593 217 (sliding sleeve).
In case the cables move freely after disconnection and the level circlip and/or sliding sleeve are not found to be defective, then replace the transmission gearshift switching unit (P/N 23 11 7 587 353).
For the gearshift replacement procedure, refer to Repair Instruction RA23 11 310.
[NEW] PARTS INFORMATION
[NEW] WARRANTY INFORMATION
Covered under the terms of the MINI New Vehicle Limited Warranty or the MINI NEXT Certified Pre-Owned Program.