Moin I hope for your experiences…. My beloved Bolide Volvo C30 D5 with automatic transmission brings me to despair. It vibrates at about 55 and 80kmh and has slight fluctuations in speed, it feels like you are driving over cross grooves or moving a switch too subturgy. It stops as soon as you go off the gas or give more gas. It was with a drift specialist, repeats no fault in the memory. Adaption values of gears and throttles were reduced unfortunately no change. Car was then at the friendly in the workshop and there was another transmission oil flushing it was flushed with oil. Again the adaptation values were reset. Unfortunately also here no improvement of the problem. In 2019 he got already a flushing according to the Tim Eckert method. Today we determined that he did not switch back in manually although one forces it and is almost already standing. The 3rd gear is held simply. Maybe already someone has already Similar experiences and can give me a hint where we have to look. Greetings Rebecca