If that is the one that has the big plate that bolts to the rear floor pan and has a drop-bar that shoots to the front to brace it against the subframe it was simply the absolute worst tow hitch design ever conceived and has caused lots of damage to many X5's. (and yes, I've seen this in person)

Can you snap a couple more pics from underneath and try to capture how it mounds to the vehicle?

__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama)

You make something idiotproof, they'll make a better idiot

You think professional is expensive, just wait until you pay for amateur.

Never let your sense of morals prevent you from doing what is right.

Examine what is said, not who speaks.

X5 pics

RIP 4.6is.....

2003 4.6is