pkupis7

Hi guys, i have a Audi S4 2012 after lift s-tronic, I bought it with 63000 km and I had some problems with timing chains noisy when starts today I picked it up from my mechanic not autorized dealer but belivie me he is better then any mechanic in Audi dealer in my country anyway when I picked it up everything was fine after some agressive driving the EPC control came out shakes a little bit and no power, I turn off and on the engine the EPC was still on it but no shake and communication came on that Start/stop system is broken but I do the same thing again Turn off and on the engine and then everything was cool.....and another problem came out with gear box I mean only with the shifter when its standning only when taking shfiter down form example from P to N there is a little harder to change it and it gives quite loud noise like CLICK..... beside that it works perfect. Please help