When I was purchasing my Patriot, the sales guy told me that whatever I did, I needed to be at a standstill when I engaged the 4wd. I thought that sounded inaccurate, but I didn't argue, mostly because I could tell he didn't really know what he was talking about. (As mentioned here, the manual says you can engage at any speed, and my real-world experiments have proven this true).
Last night I went to a new owners' appreciation thing at the dealer (kind of cool, actually), and they divided us up by vehicle and had a mechanic point out all the stuff about our vehicle. I was the only Patriot owner there, so we were just making smalltalk. I mentioned what the sales guy had said, and he said that didn't sound right. He also mentioned to me to remember that it was a 2-wheel-drive vehicle until the lever was pulled, which put it into 4wd. Which is wrong. (I have FDI, so I don't know if it's true for FDII or not).
Moral of the story: learn about your own vehicle, because the dealer sure doesn't know about it. That's why jeepforum has been great for me as a TJ owner...anything I want to know, I can find out here. I hope we can build that kind of community for the MKs.
'07 Wrangler X Unlimited, black. Just getting started.
*SOLD*'00 TJ Sport, Solar Yellow, sailcloth top, safari/duster combo, 31x10.5 Firestone Destination A/T