autoaid Internet Diagnostics+ Professional OBD-2 Car Diagnostic Scan Tool for Mercedes-Benz and BMW Repair your Mercedes-Benz and BMW yourself and save money with these diagnosis functions: Read and erase fault codes with text descriptions in English and German Scan all control units including ABS, SRS, engine, central electronics, etc. Analyse thousands of sensors with detailed live graphs and perform actuator tests Perform maintenance functions such as service reset, steering angle calibration and service electronic parking brake