RealOEM.com BMW E53 X5 4.6is UPPER TIMING CASE
Part #9 is the VANOS seal.
Part #4 and 5 are the upper timing chain cover gaskets.
You'll need to have a BMW special 32mm extra deep socket to remove the VANOS. I managed to use a medium size cresent wrench to remove/install the VANOS, but it was a pain. Get the socket on eBay.
Some radom pix for you.