Selling my OBDLink MX+ adapter. You can code all sorts of hidden features for your BMW with it. Below are specs from the website. It's $120 on the site and Amazon. Selling mine for $80 (buyer pays for shipping). Comment or PM me if you're interested. Thanks!
Maximum vehicle coverage
Supports SW-CAN & MS-CAN protocols
World's fastest Bluetooth OBD-II adapter
Free unlimited OEM-specific data add-ons
Small form factor
Hacker-proof
Read & clear 'Check Engine' light
Automatic sleep & wake-up
Free included iOS, Android, and Windows apps
Supported by dozens of 3rd party apps
Free firmware updates
BatterySaver™ Technology low power mode