And, a couple of quick peruses around the web shows oil coolers
for a few BMW cars, (at less than $375 each from BavAuto), but
no real "cooler" as I know it, for X5s...hmmm.

Someone here ought to know, but it sounds like the Stlr was
"misspeaking" as they say in the non-warranty, mark it up game.

I am certain the new E70 4.8s have a cooler...but, dunno about
the E53s...
GL