Hello everyone, I’ve been having a “problem” on my V50 for a few days with which I don’t know anything at all about it. Couldn’t find anything similar here with the keyword search, so I’m trying my luck with a new post. The vehicle: Volvo V50 2.0D built in 2006 with now 278,000 km. The problem: If I give strong gas then the ventilation performance increases until I give back less gas, then the ventilation performance goes back to the Normal value. This has been the case for a few days and is starting to get annoying. I recalibrated the LIN actuators of the ventilation via VIDA a few weeks ago, because I had the feeling that the valve to the circulating air no longer drives clean / reliable. Errors are in the memory (read out by VIDA) but in my opinion have nothing to do with this. For the sake of completeness, this is nevertheless on: 1. ECM-0380 Pre-glare relay defective. I know that of cylinder 3 the glow plug defe I assume that this is a follow-up error. The relay itself works perfectly and has also been exchanged test times. 2. PCM errors to lost communication etc… It is also completely clear, since I have pulled the fuse of the auxiliary heating. Instead of preheating my moose he plays “bat-mobile” and hides in a white dense cloud… There is probably the incandescent pin glued and therefore no ignition is done. Must be approached once we rden (before the winter) but shouldn’t play a role here either? I’m really curious what you can advise me 🙂 Greetings!