Anyone had their rear window heater fuse blow a lot? Mine has gone twice now in about 4 months - is this normal - i was driving at night and went to switch it on - i saw a quick flash from the fuse box (even though it was covered!!) and the heater stopped working. Its probably a high voltage circuit so maybe this is related?

Cheers!

pmcq said:

Its probably a high voltage circuit so maybe this is related?

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It's still 12v, but would be high current. The fuse would blow if there is too much current going through it, which means there could be a short circuit or other lower resistance than expected. Don't fit a higher rated fuse. Might be worth getting hold of a wiring diagram (Haynes manuals have basic ones), and then tracing the heating element to see what resistance it is (need a multimeter for this). The post on here and someone with the same Punto can hopefully merasure their working one to see if yours has a problem.

Thanks Gav! I have the Haynes manual so I'll take a look.