Originally Posted by bmwriderm
Most recalls are only called for when, its a safety type issue. I don't think a clutch would qualify.
Did anyone suggest that BMW should/would issue a recall? Yeah, that's likely. A pig might fly.
Okay, I'll grant you that this thread may be much ado about nothing, on the other hand there's an outside change the information will prevent a clutch slave failure.
As far as gathering past data regarding what fluid was in the bikes that have had a failure I doubt anything meaningful could be obtained. Even regarding those bikes that failed with the original fluid we can't be sure BMW consistently used the same fluid. And who knows what fluid is used in the various BWM dealership service departments? And do DIYers remember what fluid they used in past fluid changes, I know I don't recall the brands.
And it could be that it simply was a bunch of "bad" seals.
There is a BMW 0-fish-all clutch fluid, note that it is mineral oil !?!:
On the other hand, my BMW Service Manual for the K1200LT refers to brake fluid in the "Changing the Clutch Fluid" section of the manual and specifies DOT4.
I don't know much about brake fluids, but I wouldn't assume that DOT4 must be better than DOT3, and that DOT5 must be better than DOT4, and on that basis choose to use DOT5.
I'm going to stay with a major brand of brake fluid and use DOT4 as specified in the BMW Service Manual. While DOT5 may not be hydrophilic compared to DOT3 and 4, but unless specified by the manufacturer, I wouldn't assume that it is compatible with all the components in the system.
I also use a fresh unopened container and change at intervals as specified in the owner's/service manuals. Beyond that, I don't think any objective conclusions can be made. My original point was that it is possible for the "wrong" fluid can damage the "wrong" seal leaking to a leak, witness: the Toyota recall.