Official BMW part numbers for all BMW models can be found at www.realoem.com. RealOEM provides part number lookup, and part number listings by VIN (Vehicle Identification Number). RealOEM part numbers are sometimes region-specific. When sourcing a part, double-check all part numbers with your local BMW dealer.
BMW VINs are located in the following locations:
Under the hood
On the driver door jamb
On the top of the dashboard, driver's side
Cast into the transmission
On a sticker on the rear of the engine head (missing on many used vehicles)