My car developed a rattle the other day and took it to the dealer this afternoon to get it checked out. It turns out one of the cat convertors has a problem and is rattling. But I had no idea the XF had 4 of them!

Anyway, dealer doesn't have any exhaust part numbers for the XF!!!!! So I'm waiting for them to call me back with details so it can be booked in. Damn, this is going to cause me problems selling the car..