I bought the device to my error memory read and delete mainly. Despite use strictly according to instructions I had always "Link Error". After many many attempts in which the cockpit of the Focus convertible merrily flashed and pretty much indicated any mistake in Autodisplay I finally got spit out that there are 8 memory error. 6 errors have been displayed with error code 2 is not. Deleting struck entirely fail and then when I wanted to go to the workshop my engine remained silent since the entire procedure had blocked the engine which again only by the ADAC delete the fault memory has been solved. The unit was immediately returned.