Hello together unfortunately in the search no success had so here my problem I drive a Cooper D from 2009 Km Status Current 85000 ca. service intervals all made if not even one or other oil change more ! Now I have for a few weeks the problem that if I want to speed up the engine into the engine malfunction program and lowers the line or only up to 2500 turns. The passes however very sporadic . I have not yet fixed any error rhythm It happens when you want to turn to the end no matter in which gear. It also happens sometimes in the low-turdy area. So everything is very strange. Engine on and again out of problem away quite normal until you want to turn again fully zb On highway or to overtake. My turbocharger has already been exchanged 2 times on warranty. Because of the rust. Now a letter has appeared at BMW in the stands that this is normal and does not affect the operation. r D that I have seen so and have also looked under the bonnet have not had a lost turbo Why mine. Can this be related? My friend wants to hang the car on the tester and the target and data compare ! Cost point unclear Since I am a student and my money unfortunately also does not grow on trees Ask me here for advice or if anyone knows the problem ? Thank you in advance .