T_D_I_POWER
Top Post Dawg
- Joined
- Jun 7, 2007
- TDI
- '04 VW PASSAT GLS TDI '06 Audi A4 q Avant 6-Spd Sport Pkg
Agree, AWA the 1-way CV works only if it's installed on the coolant return line -OUT- of the OHE. Otherwise it doesn't work if it's installed on the coolant supply line -IN- of the OHE, and therefore, it has to be removed. If CV isn't removed then coolant won't circulate.jayb79 said:With a check valve, so the circulation is forced. They work like the Mr.Coffee machine. Once the water gets hot it has to come out, that is why orientation of the heater is critical.
Last edited: