Stumbled upon this and it seems full of info... I've been scrolling through using the prev page function at the top and found resetting the service indicators... I think without using VAGCom Give it a go and see what else is there. I think it's for other models apart from the Mk3 too. http://volkswagen.workshop-manuals.com/golf-mk3/index.php?id=1570 Enjoy
A quick search on here will tell you how to reset the service message via the clock adjust buttons...
