[Vwdiesel] Glow plug light issues

[LBaird119 at aol.com]

  You did drain the water separator, back by the RR wheel not just the drain
on the filter?  I had a LOT of people tell me that the only water separator
was
the filter when I was trying to find a new cap for mine.  That includes the
dealer who SHOULD have seen one by now!
  Cleaning grounds and main electrical connections helped mine a LOT.
Stuff like the battery to body and engine connections on the ground.  Alt.
grounding strap connections.  Alt to battery + connections and such.  It
still would blink on when the wipers would cycle on intermittent or glow
when the A/C was on and the higher the fan was turned on.  After my
GP relay died and I replaced it the problem was completely gone.  It did
make me clean up some grounds that were causing voltage drop in the
process though.  :)
     Loren