Norpower

Its started to get a little colder now so I turned up the heat in my 2004 turbo and discovered that hot air comes out of my passengerside vents but it continues to blow cold through the driverside vents. Seems like there are 2 heater valves to control l&r . Any info on where they are or testing procedures?

marky522

More than likely you have a failed servo motor. No real way to test but with the Piwis tester.

Mark

zra06

Any idea where the servo motor is ?? i am having same problem Cold air blowing from drivers side and warm air from passenger side.

HD2pct

There are about 8 of them and you have to disassemble the whole dashboard/instrument panel to get at them, I am pretty sure.

Good luck with that.