Hello together! I have a quite profane question: I have noticed many times that the instrument lighting on my 230 W123 is significantly darker than when I’m driving, so the speed is higher. Is this normal or does the alternator possibly bring too little power in idle mode? Sometimes the instrument lighting suddenly gets a little darker while driving, but shortly after that it gets brighter again. The poti works and I have it up to full brightness. Do you have an idea or Have you had something like this yourself? VG Dominik