Not sure same on the x5 but took 15 minutes for me to take door cards off an e46....practice...totally poor construction of window carrier meant i did em all on wifes e46..08..more than once. As for starter some of those bolts look like torx shaped screws...reckon i can do more damage to x and myself if ..gonna let someone else do it , mechanic did a magic job of stem.valve replacements on our e46 and a heap of other fixes so have faith in him, just with the starter didn't really want to get it touched unless for sure it was the main culprit of laboured start. Will see soon if i kill my new battery due to starter ,gent who i installed it cant refuse a replacement as like i said he was sure my starter is good.

__________________
E53 X5 3.0d SUV prod.date 11/2004 eng.variant M57N Europe Right hand drive N