Our 2011 Yeti 4X4 140ch was in for its 90 k service and they have done that VAG software emissions update. It now drives and sounds like a tractor. It is AWFUL. The noise from the engine is terrible. I HATE it. Before it drove like a normal car.   I guess there have been many threads about this before and I have googled a bit and generally got the idea that the update is a disaster.   So what are my options ?   Can the update be reversed ?   I want my car