Hello together, I own a BMW 650i with the N62 engine with 367hp. In another thread I describe the problems I have with the engine. Today I removed the air filter box, crankcase ventilation, tank ventilation valve and throttle valve to examine these parts closely and to clean them if necessary. When removing the throttle flap, I noticed that under/behind the throttle flap a hose connection is Corrided. Can anyone assess why there is corrision down there and if this could explain my problems (motor emergency, speed fluctuations etc.)? Thank you for your help and VG