Thanks for the quick reply, I assumed it wasn't working correctly, it's never once turned the recirculation on automatically even when driving through smoke or when I've been stuck behind an ancient bus
It actually would be a useful feature if it worked!
Yep . I think its working, as I pass a factory that emits some pongy smoke and I have yet to smell it. I was also behind a car pumping out lots of oil smoke and I couldnt smell that either
So I think I can safely assume that its working