VW Jetta TDI / Diesel / Bluemotion
Yeh, I know. They aren't a pair of jobs unless fixing the thermostat doesn't help and you have to jump into the blend doors and heater core.
Anyway, I am working on my son-in-law's 1998 TDI Jetta due to no heat. I pulled the t'stat and replaced it. I also performed a full system flush. Putting...