I had a blinking coolant light problem a couple years ago on my '87.
It turned out to be a corroded  contact on a round Molex type
connector  located in the square plastic junction box in the front
bulkhead panel of the engine compartment.

Kevin Sullivan
'87 syncro westy

 << I just recently had some coolant hoses replaced and the system
bled on my 90 GL. The problem now is that my coolant light comes on
and stays on. But when I turn the
 vehicle off then on again, the light will go out. Temperatures seem to be
fine and
 the coolant temperature is normal. Anybody have any ideas as I don't really
want to
 take her back into the shop ( my local VW gurus are so busy it takes almost a
week
 to get anything done.)  I work on my 72 VW T2 but have avoided working on my
90 till
 now because I just did not want to screw anything up.
 Any help appreciated,
 Steve Hajasz >>