The app is designed to work with BMW F and G-series vehicles, both for workshop staff and owners. eXtratool has a number of unique features and excels in this respect over the dealer's ISTA diagnostics. The ability to switch off the Xdrive all-wheel-drive system and the Valvetronic valve stroke control system, the temperature history of the automatic transmission. Using the eXtratool, you can professionally diagnose your vehicle yourself and save money on servicing. The app will also help you c