Drivetrain - LS Differential Noise On Low Speed Turns
SI M 23 01 06Manual Transmission
March 2006
Technical Service
This Service Information bulletin supersedes S.I. M23 01 06 dated February 2006.
[NEW] designates changes to this revision
SUBJECT
Droning Noise from a Limited Slip Differential
MODEL
[NEW] R53, R52 with W11 and G285 Getrag 6-speed equipped with Limited Slip Differential option
(from 01/2005 up to 03/2006 production)
SITUATION
Customer may complain of a droning (grinding) noise from the transmission area during cornering at low speed in the first or reverse gear. In most cases, complaints occur on low mileage vehicles.
CAUSE
Friction noise from the limited slip differential (surface roughness of the taper rings).
CORRECTION
On a customer complaint basis only, the transmission fluid should be replaced with Texaco MTF94 trans fluid (P/N 83 22 0 403 247). For draining and refilling procedure refer to MINI TIS RA 00 11 229 (G285 transmission fluid capacity is 1.7 liter; filler/drain plugs tightening torques are 43 +/- 4 Nm).
After refilling the transmission with MTF94 and with the vehicle at operating temperature, drive in tight circles (approximately 10 circles in each direction) until the grinding noise disappears.
PARTS INFORMATION
WARRANTY INFORMATION
Covered under the terms of the MINI New Vehicle Limited Warranty.
For the appropriate labor allowance/operation refer to KSD found in MINI TIS.