CHeck out this thread
http://216.147.22.29/forum/showthrea...hlight=leather
and look at page 2, darbh has a good long post about leather and another site that may shed some more light on the situation.
I agree with yosteve on the conditioner a couple of times a year and the 303 on a more frequent basis, or simply use a damp MF to remove some of that
grime. I have used z10 but not z9. I use z10 a few times a year and 303 or a damp Mf more often. My seats seem to be doing fine.
Definitely condition your leather prior to the winter time because that is when it has the greatest opportunity to really crack/crease and become unsightly because of the temps.
Brian330, I also have a 330i and know that BMW leather is clearcoated.
Just my .02