Clutch disc replacement

Hi guys!

A couple of days ago I had to move a fully loaded trailer through very rough and soaked road (with couple of inches of water on it). In order to do so, I had to put my clutch under a lot of pressure....Anyway, when I parked the car I noticed that my clutch was starting to smell bad (like it was burnt up - you all know that smell).

After a couple of hours, the smell went away and the car (and the clutch) now behaves well.

Just in case (and I hope I will not need it), has anyone replaced a clutch disc on X3?

Is it complicated? Where online can I find the clutch disc?

Thanks,
Marko