ASHTRAY 51167132380 $89.90 $0.00 $17.98 $71.92
Console - Center console - Trim panel - W/o i-drive control
Walnut 2006 - 2007
51167129547 $475.51 $0.00 $95.10 $380.41
Yes, BMW doesn't sell the walnut ashtray lid separately -- probably because the grain won't match. Your car probably doesn't have the console wiring harness, so you'd need to tap into one of the other power outlet circuits.
Including shipping and a couple bags of wire taps, less than $500, using new parts. I'd figure on a Saturday morning to do the job. (If you smoke Cuban Habanos, it might be worth the investment!)
It's probably much cheaper to either buy these parts on fleabay or from a recycler, though. The "lazy man's" solution would be to just to buy an ashtray that fits into a cupholder.
2008 E91 station wagon 18K miles "Classic" BMW inline six, six-speed manual transmission, Alpine, Terra, Xenons, ZSP, ZCW, ZPP, PDC, CA, alarm, M shifter and M brake handle, Euro rear fog light switch, Euro aspheric mirrors, rear power outlets, Dunlop Winter Sports, Garmin nüvi custom cupholder mount, Lidatek, V-1 built-in remote display, tire pump, jack, floor mats, sand, dog hair, several pairs of smelly old running shoes.