Mike's Aussie D3 A8

[mcs]

Just an update,

I have sorted a long term (2 years) HVAC issue.

There was a lack of proper heat coming from the dash. Oddly, it was ok from the rear vents (4 zone car).

I was preparing to flush the heater cores, but I checked the valves and pipes and they were fine. Great temp, clean flow of coolant.

I therefore checked the coding with VCDS and it had many errors.

A proper basic setting run after clearing the codes has actually mended the system. Perfect heat from all vents as required.

Result.