I have read apost on another website answers.com or something like that where "professionals" answer your questions. A VW Technician (mechanic) said the reason the fuse block melts is that one of teh cooling fans has failed and that causes the alternator lead to heat up to the point of melting the fuse block housing by the alternator wire. Whatehr this is true or not I don't know. How could you test the fans? They apparently operate on two speed settings dependent upon the thermal switch detecting hot or too hot. The thermal switch itself sometimes gets replaced as it may be faulty and not putting the fan into the second speed. How could you test these components?
|