oh btw, with my T3 dehler profi build in 1983 it was a broken wire, witch was lose under the van hanging in the wind and swinging, it was just internaly broken, nothing to be seen from outside. replaced and properly fixed. everythins fine now.

pps, it happend at about 175.000km and an age of 26 years

i know and owned a lot of cars hwo had bigger problems long time earlyer.