You need to either download and register the software for your car from rosstech onto your laptop or go to the diagnosis section of the forum and post if someone near your location can
help you. It cost 60 or 65 pounds to register the free software to be able to do logs. The website has tutorials on
how to do the log and what block number to put into the program to read the engine parameters that you wish to view. The log is best done in third or fourth on a light gradient from 1500 rpm to as high as legally permitting an rpm speed in that gear but ideally 3500-4000 rpm.
I'm surprised it's failed so early. I know the other fella said his failed at 41,000 miles. I thought the audi biturbo s4 were bad for failed turbos at 80,000-100,000 miles. The bearings in my 1.9tdi turbo needed replaced at about 120,000 miles but wasn't making any noises and had missed an oil change at a 10,000 mile interval so 20,000 miles between oil changes is to much for the specifications of the oil which would cause bearing wear.