Thanks DallasGV. Good point, I replaced the tensioner as well.

740ilDuke is correct. Seriously, what a pain! But in the end, I don't see how the lower case would have come off with the dipstick installed. I have about 6K miles since the job and everything is working perfectly. It doesn't even leak anything!!!

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2001 X5 4.4i Sport
2013 550i Xdrive M Sport
2000 528i E39 (Sold)
Unleashed Air Racing 279 mph Best Average Speed