cabin air filter is super easy to change. Open hood -- look towards windshield, note 1/4 turn fittings and a cover like structure in black and proceed.

Bentley is a good deal at full price if you do one maintenance item or two you've paid for it in full.

You can replace xenon bulbs yourself but I don't know the exact procedure.

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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