Good evening, For a few days I have heard a “comic” noise from the turbocharger when driving. The sound sounds like a very high, shrill whistle and always comes exactly when I come over 2.5k tours (then probably the turbo is used). As soon as I take my foot off the gas the noise is gone. I have read out my error memory and have encountered the following errors: P0299 P3138 P0100 Does anyone have ideas/proposals where I start? Do the errors hang together somehow or are there several problems? Thanks already for all ideas/advices. Greeting Flo