Thread from the dead!
I had a revelation when reading this DIY article: http://www.bmwe34.net/E34main/Mainte...eaterValve.htm that my heater valve solenoid was what is making the ticking sound... I can finally rest (after 2.5 years )
BMWCCA Member# 451235
(Summer) 2001 330Ci - ZSP
(Winter) 1994 530i "Greenie" - PARTING OUT! (PM for details)
(Grocery Getter) 2002 525iT