Whilst rebuilding our 1991 1.6 GTI I've noticed some odd behaviour from the heated rear window switch and looking to see if anyone has seen it themselves.
When the ignition is on, but engine not running, if I switch on the heated rear window, then switch off, the fuel pump primes. I should say that the fuel pump primes when I turn the ignition on (as you would expect).
Has anyone seen this? I can't see why it should but it's hard to tell if this is a result of some odd electrical gremlins or some weird French electrical thing.
Thanks in advance all! Andy.