When I picked up my RS6 in Aug. I swear the tires were inflated to 32 all the way around. I had the car in the dealership in early Oct. for a minor discolored trim swap that was apparent at delivery. I also had them check the balance of the wheels and tires. And I swear the tires were still inflated to 32 afterwards.

I look at the passenger rear door sticker after reading carbonlord's thread carefully, and lo and behold the pirelli's are supposed to be inflated to 36 min!!! I've been underinflated for 2 1/2 months until last Friday!!!!

I am now running 38 all the way around and I do notice crisper handling and a firmer ride. I am going to try jp4's 35 rearward psi tonight and leave the fronts 38.

rtfm applies. DOH!

I took delivery of my car with tyres inflated to 36psi all round, not the 40 they should be. I had to tell them last time to make sure they got done correctly, as every tyre service was the same.