Yeah Mk2 GTi. Thanks for the offer though.
You sure about it maybe being the voltage regulator? The light is on continuously with a very faint flicker - I noticed when I revved it hard the light goes out sometimes (usually over 4500rpm ish). I've already booked it in for Tuesday to get the alternator swapped

Hmmm. If only I could get this fix tried before then... gadzooks.