Hello Together, with my V50 1.8l petrol engine, 5-speed manual transmission (see below for more details on the car) I notice the following peculiarity every morning. Mainly in the warm running phase (engine no longer cold, but also not yet warm) the idle speed varies with me, if I drive with a stepped clutch for example to a traffic light and brake. The speed then varies between 800 and 400 rpm. However, as soon as I have come to a standstill, the e Speed immediately at 800 rpm. I can also reproduce this effect by rolling down a sloped track with a stepped clutch or idle. Then the idle speed also varies between 800 and 400 rpm. If the engine is warm, the fluctuation is between 800 and 600 rpm. And as I said, as soon as the vehicle is standing, the speed is stable. I wouldn’t be disturbed by this anymore, but it has happened to me that the engine is turning again. Was just the bad moment at 400 tours. I don’t want to wake up any sleeping dogs now but can you understand this with your 1.8er too? Would be nice if you could contact us! V50, 1.8 petrol, 5-speed switch, 6500km, 12/2005, model year 2006, summum, RTI, high-performance sound, roof railing, xenon