Tach too… I noticed today that my smart is a bit jerking when the climate is on, it is quite easy to determine when accelerating, it falls most in the partial load range at well 2500-3500 tours, when you roll on the country road at 70 or 100 kmh. If I then brake down to stop, is that also so, although I have taken the foot off the gas?! Do I turn off the climate, is it!? If I make the climate again, I have to rest for about 1-2 km, then it comes up again. It is also not a strong ruckeln, but rather a light pulsation, as if the climate takes away some gas for a short time?! Let’s say for about 10 sec. 60% gas then short for 1sec. 50% gas and then again for 10 sec. 60%… and that keeps on being so annoying… But it’s got nn ́05 Smart 700ccm with 61PS It’s pretty hot with us, the display was good at 30 degrees… I hope you can’t give me a break.