Moin, moin, at our Eco UP! a new sound has changed after 3.5 Tkm: * At the front right there is a quite bright whirling/whispering. * It is not very loud (not to be heard at highway speed), but annoying, penetrant * It is gone when thrusting, shortly before the engine is switched off at start/stop (sometimes it comes quite shortly after the engine stops) * I have to check if it is already possible to hear before starting the engine at ignition. it’s an electronic noise (control unit, electronic gas pressure regulator,…) Oh yes, I haven’t been able to test it yet in petrol operation. Do you have an idea, guess what that could be? Already in advance you all have a nice sunny weekend, tottesy