Tank flap unlocking – such a Murks

I have been mutating to the moon rider since the beginning of October and today what I feared at the first tank stop has arrived. I pull the lever for the tank flap unlocking and pling – hooked up or torn down Notentlockung??? Missing – that’s probably Murks. Do you have experiences where he usually leaves or do I have to trust in the workshop. I hope the used car guarantee covers this, otherwise I have to do it myself.