Hello. Drive a Volvo s40 1.8 Yesterday my light switch was smoking and my standing light didn’t turn on anymore. After the switch was removed, I noticed that the switch was over as soon as I switched to the 2 level. Stage 1 so day running light/standlight works. So I checked the lamps myself. Both h4 plugs were lost to unrecognizability. After I checked all the fuses and found out that none of them had gone, I started to ponder very much. Seat tongue without function, number panel lighting without function, tacho lighting without function and disc water pump without function. I have the standing light until I get my spare part clamped to the battery with a 15A fuse. So and now to my question: do all the problems disappear again as soon as I have a new working light switch? Why are all fuses still intact. What has light to do with the seat heating? Did I overlook fuses.