I just joined your friends. I have been using 301 access for 5 years. I built it all at 102,000 km and all. While my vehicle has increased the 2nd and 3rd gear gas for 3-5 months, there is a sound like giv giv giv at 2600-2800 rpm. Could there be a turbo problem .. there is no problem with traction. 1.5 years ago, he had given the malfunction lamp a couple of times, they deleted it in the service (it doesn't matter, sometimes they said). I deleted it at the private service once. I don't know the turbo, what the cable sensor or something says. I didn't care much. Could it be connected, do you have experience. thanks in advance ...