woah, weird tsb

look in the tsb section
http://www.alldata.com/TSB/35/9635ak79.html

P-40_10-43 JAN 04 Tires - Michelin Pilot Sport A/S(R) Tires Not Approved

Correct. The A/S is not approved, but the Pilot Sport and PS2 are fine

heheh. yeah, but i'm not quite sure i see the difference in the pilot sport a/s versus any other all season tire..

I hear ya...perhaps I'm guessing (or Luke could provide some additional insight) , but my take on it is that the Pilot Sport A/S was being used as a replacement tire by some owners of high performance cars (AMG, etc.). I've chatted with several owners who used the A/S in hopes of getting longer tire life as it has the higher treadwear rating. Most all reported back that the handling was TERRIBLE compared with the "Max Performance" summer OE Pilot Sports. One even advised that his C32 was "squirrely" after putting on the A/S. He could not wait to get a different set of tires for it.

Since the handling was changed (for the worse in most cases), I am guessing that MB just decided to adopt a "not approved" status for the tire.

there were pulling issues with these tires and poor quality control.

I use these tires on my 2004 E55 in the winter/spring and on my 2006 E350 all year round. I dont have any pulling issues, they wear evenly, and are far better than other tires in its league.

Since we had just purchased a new set of 4 Pilot Sport A/S for the C36 this spring when I saw the bulletin, I did ask Luke. He responded:

http://benzworld.org/forums/forums/t...201416&posts=7

And we don't have any pulling/squirrely issues either. The last set on the rear got us 24K miles, which is over twice what the Bridgestone Potenzas gave us.