I sometimes get the search error. Just wait a while and try again (or the next day).

No help on the seal but I'm guessing the front timing cover has to come off? That doesn't sound fun.

If you don't want to tackle it, take it to Sin City BMW (in the old fire station by Terminal 3 at McCarren). Those guys will get it done. Patrick is the best wrench there, but he only works the late hours I think (he's a full time Mercedes master tech as well as a BMW master tech, co-owner of the shop).

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Kirk
Las Vegas
2016 X5 40e Mineral White/Black Dakota Leather, ZLL, ZCW, ZDA, ZDB, ZPP, multi contour seats, rear side window shades, HK stereo
2011 E90M3, 6-speed manual