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cheshired5 · Nov 6th, 2021, 18:15

The cheapest way to check is to unplug the AQS.
If heating returns to normal, it was the AQS.
You don't need to buy and fit a new AQS to diagnose.

Nov 6th, 2021, 18:15	#13
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	The cheapest way to check is to unplug the AQS. If heating returns to normal, it was the AQS. You don't need to buy and fit a new AQS to diagnose. __________________ 2002 S60 SE D5 Manual 209000 miles