Originally Posted by GregW / Oregon
Not sure--the MLock diff needs one with an LSD additive to prevent clutch chatter. Mine has been making noise since service.
Sh#!. I note a little chatter, but I think before service something like this a heared too. I'll go to my service to ask show me the bottle... Is there are some official BMW information about this LSD additive?
P.S. If this chatter problem fixing by changing to correct fluid?