Ive noticed the coolant takes a lot longer to get up to temp now.
previously it was sitting just under 90 on the dash, and dropping off slowly when driving, i changed the thermostat. Occasionally it still drops while driving but the heaters stay hot.
Ive checked channel 51 on the aircon unit and it reads a steady 75'c when warm even when the needle drops.
How to test each sensor is working properly with vcds logs?
I know some dashes have this fault, it did this on my last dash too though, but im sure the 75'c is too low and its another problem.