Hello, I have been plagued for about a year with the electronics on my S40 2.0D. Chronicle: Summer 2011 Defect Ignition lock -> Replacement Zundschloss, new battery autumn 2011 Defect eletr. system (defected LM) -> Exchange LM plus belts After that came the problems with the voltage fluctuations. Starting with a rather harmless flickering of the center console display, flickering stand light. But the whole thing then increased up to the failure of the complete tachoelemte wä During the trip (tour counter on 0, speedometer on 0). My contract workshop said that she had never seen anything like this before and was (allegedly) in touch with the Volvo headquarters. All of this happened in the winter of 2011-2012. The colder it became the worse the impact became. In spring 2012 (March) I was then fitted a new LM on guarantee. Now it went over spring and summer actually without problems. But now that the temperatures come down again the Problems – i.e. voltage fluctuations – again. I know that the causes for such fluctuations can be versatile. But vlt has someone here already had similar experiences or an idea where the error could be. The question is also whether it is worth it with such a problem to go on troubleshooting at all, after all the good has now 205000 Km down.