Quote:
Originally Posted by wrxseeker
Hi - I have had my 2021 T8 since March and with winter approching, and despite reading the manual and searching on here, I have been wondering about the following questions:
- if you have the aux fuel fired heater turned off in the climate settings in the carand only ever do a short journey in PURE without starting the main engine is any heat supplied to the cabin at all ?
- if you have the aux heater turned off in the climate settings in the car, but select Climate in the app does it then start the aux heater ? and if not, if it's plugged in does it heat the car electrically instead ?
I seem to have found conflicting answers.
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2 - as I understand it there is only either an electric or fuel preheater. Up to and including MY21.5 (XC90 at least) the T8 for UK market (and at least some other euro markets) had a fuel preheater, MY22 and on for UK T8s have an electric preheater (as have certain other markets for some years, USA has only ever had electric preheat I think).
I would suspect that the car will preheat (fuel or electric) regardless of whether the auxiliary heater tick box is checked or not as they are different functions. Ticking the check box I believe only relates to using the aux heater, or not, whilst the vehicle is active / driven. This could be checked easily enough in parked mode, but if the car warms up it will be via the fuel heater if thats what is fitted.
The check box is probably missing altogether on MY22 onwards I imagine.