Moin, after I had to make sure it wasn’t the gas system, I can create the thread today. I have been on the road a little longer without gas and can detect identical problems with both fuel versions. What almost always happens is the acceleration in the 5th gear (6speed switch) from 2500 u/min and from about 3500u/min a vibration and a noticeable power decrease. After I drove about 30km of motorway this morning and at an exit short g I wanted to move into the flowing traffic and suddenly after a short boost the performance was completely missing! No message in BC and a short time later everything is again iO. things like gas filters etc. do not escape, because only 20tkm on gas and problems also without gas exist. Spark plugs are now about 45tkm in and therefore not yet due. Drosselklape is from Bosch (2005er BJ) and should actually be no problem. On Thursday I will probably first the memory au However, I would be interested in the possible sources of error in advance. What do you think?