was having an issues with my temp gauge malfunctioning so yesterday i replaced my cts.
i also changed my coolant cause the idiot who owned the car before me used regular green antifreeze.
changed coolant and started car sure enough the gauge gradually rose to the halfway mark and sat there,no fluctation.
however as soon as i turned on the heater the needle slowly dropped and car now fails to give out heat at idle,i tried bleedin through the heater core pipe by firewall but it did not fully resole the issue the needle still drops a bit and heat is not up to full temp.
any ideas or tips????retry bleeding?????
its a 2002 a4 1.8