Need your help. I have a 2016 Tiguan that is giving me this error code and I have CEL on:
Code 00048 - Left Heater Core Temperature Sensor (G306)
Is this the oxygen sensor? if so, which one?
Thank you in advance.
Erm, where to start. My HVAC heater is rubbish. The heat exchangers don't produce enough heat and the blow fairly cool. I've been faffing about with the diagnostics tool, hoses, pliers etc and I've concluded the following:- 1) The heater flow control valves work. I can throttle them up and down...