Only had my mk3 for less than a week so haven't had time to tinker with it yet, but these are the ickle probs I've got:
Leccy Sunroof tilts but won't slide, maybe the cable?
Can't get my headlights to stay on main beam, pull back on the stalk and main beam comes on as long as you hold the stalk back but won't stay on when you let go, The stalk clicks still, like it's going onto main beam but then back onto dipped as soon as you let go.
Any ideas?
Oh the water light flashing problem, must be the same on mk3's
I've sorted this out on 2 mk2's and an audi coupe, was the same issue.
Provided that it isn't actually losing coolant, it's just dirty coolant affecting the sensor.
It's annoying that little red light flashing, so worth while spending an afternoon sorting this out. Not at all difficult, just time consuming.
Get yourself a good engine degreasant like Gunk
Drain the coolant system
Remove the round ball expansion tank, take indoors, block up the pipes, put a little degreaser in then fill up with boiling water from the kettle, put the cap back on and leave for 5 -10 mins, give it a bloody good shake and then drain it out and rinse through with hot water, watch all the crap come out into your sink
Now put the expansion tank back into the car and connect back up.
Now to clean the rest of the system out:
put some degreaser into the expansion tank and fill up with water, put the cap back on
run up to temp (when fan kicks in)
drain the system again once it's cooled enough so you won't scald yourself,
connect back up and refill with only clean water, run up to temp, drain, repeat untill the water comes out clear and then refill with the correct quantity of coolant/antifreeze with water.
Hey presto, no more red light flashing
Oh, if it's a gti and there are a few toffee like deposit's in the coolant, don't panic, it might not be the head gasket, it's more likely the oil cooler needs changing, especially if there's no mayo under the oil cap.
so, it cost nothing to fix (well apart from antifreeze, degreaser and maybe an oil cooler at the same time, oh and a few cups o tea while you wait for it to get to temp) but well worth doing