Driving into work this morning I realised I had recirculate button on the Auto setting. Now my manual is at home and it's just piqued my interest - should this be a default setting? will the fume detection recirculation function not work unless this is permanently selected?

Can't for the life of me remember and of course waiting till I get home is too long :wonder:

What's the considered opinion of the Yeti clan?

I have this setting on my Octavia and even after reading the manual I'm not sure what it does!

Can't work out whether it selects recycle and takes it off when the interior air quality gets bad or does it select air intake and switch to recycle when the exterior air quality gets bad?

Left hand light on - outside air vent closed. RH light on - vent on Auto (whatever that means)

I will hang an onion near the air inlet vent and see what happens!

Left hand light on - outside air vent closed. RH light on - vent on Auto (whatever that means)

I will hang an onion near the air inlet vent and see what happens!

Like the onion idea. That's exactly what I gather, left hand light on - recirculate (a rare-ish requirement) right hand light auto - but auto what? Does it mean it isn't recirculating but will do so when it detects an onion or what?

I don't trust whatever measurement is used for recirculation, so mine is always off.

If you keep it to the left setting only - normal closed - the air in a the car gets stuffy since there is no new fresh air coming in. Some cars have a CO2 sensor (usually Mercs) that will automatically deactivate the resirculation feature if the CO2 levels get too high inside the car. My understanding of the Auto version is that it keep the vents open and thus lets fresh air in and will only fully close when it detects smells from OUTSIDE. Once the smell or whatever particulates it senses has gone it will automatically open and let fresh air back in keeping you from getting drowsy.

Manually switching to recirculate is useful if you are eg stopped at traffic lights behind a HGV belting out foul fumes, or in longish tunnel, say, where there may also be a build-up of exhaust gases.

Thanks Johann. So it's either leave it on and trust in its electronic nose or switch it off Agerbundsen style.

Must say tend to side with Agerbundsen on this one.

The only time I have used recirc. is on cold mornings when I want to defrost the screen. The air in the car is slightly warmer than that drawn from outside.

Hi

I'm a bit late catching this thread, but thought I'd proffer my two pee's worth.

I, too, puzzled over this facility but unlike AgerB I left mine on Auto. Incidentally it doesn't default back to auto if, for example you've had the system on Max de-icing; you need to reselect it.

The reason I leftit to make it's own mind up is because as Terfyn, and Llanigraham know full well, the middle of Wales is crammed full - well, sparsely crammed - of farmers, and because it is a hilly old place, they can't plough the fields and scatter their seeds to grow nice crops.

No - they have sheep, sheep, and more sheep. Some of you may know about sheep. Many of you will not, so I'll tell you.

Sheep have only three ideas in their heads, being truly simple creatures. Firstly they want to eat, an they do this for a steady eight hours every single day. Then, when they have finished eating, they crump it back up into their mouths and they chew it all over again. For another eight hours.

The second thing sheep want to do is to escape. It doesn't matter where from, or how big the place they are in, they want to escape into the field beyond the hedge, or the roadway beyond the hedge. They can do this either during the eight hours allotted to eating, as they "think" that there might be better grass or thistles or bracken (or at the bottom of my garden- roses) on the other side. They can escape, too, during their second eating phase because walking around and munching at the same time is really easy.

The third thing that sheep want to do is to dream up a new way to die. This is remarkably easy if their escape has been onto a busy main road. It can also be accomplished after eight hours of noshing, and they lie down for a snooze on a hillside. They then find that they're so full of food that they cannot stand up, so they lie on their backs and wave their feet in the air and expire due to the weight of food in their belly pressing on their essential bits inside. They can also pop off when chewing, as it might go down the wrong way.

That then is the authorotative guide to sheep.

What the heck has that to do with a Yeti and an air filter? Well, all this eating and chewing and escaping and expiring have unfortunate side effects. For every mouthful of grasss eaten and chewed there is an almost equal quantity of poo that is produced indiscriminately and frequently from round the back. And sheep don't see this, and nor do they have any qualms about dropping it just wherrever things move them. That could be just where you and your Yeti will drive, and as my Welsh colleagues will attest, what comes out of the back end of sheep is highly aromatic.

And that is where that little button comes in. It is quite quite brilliant at detecting the pong of poo in an instant. Dead sheep, too, have a particularly unpleasant aroma.

Now - not ALL Welsh farmers have sheep. A great many have cows and steers and bulls and bullocks - but I have taken up quite enough of your time already, and you all know that cattle are huge compared with sheep, with corresponding results.

And anyway, I think I have proved why we should all leave the right hand green light on the recirculation button "on"!!!! At least in Wales.

Diverting as ever, Freshacre, and feelings I empathise with, living in the wilds of the Yorkshire Dales where I too have frequent encounters with kamikaze sheep, protective mother-cows and belligerent farmers driving killer machinery designed for roads twice the width of our lanes. On a more serious note, I believe that to keep the recirculation button engaged for too long might lead to a build up of very stale air in the car and possible drowsiness for the driver. Nothing like a quick blast of methane for keeping you alert!

Brilliant Freshacre, that post has lifted the thought of snow from my mind. Some forum posts are just priceless, that was one of them!

Well, all this eating and chewing and escaping and expiring have unfortunate side effects. For every mouthful of grass eaten and chewed there is an almost equal quantity of poo that is produced indiscriminately and frequently from round the back. And sheep don't see this, and nor do they have any qualms about dropping it just wherrever things move them. That could be just where you and your Yeti will drive, and as my Welsh colleagues will attest, what comes out of the back end of sheep is highly aromatic.

And that is where that little button comes in. It is quite quite brilliant at detecting the pong of poo in an instant. Dead sheep, too, have a particularly unpleasant aroma.

Wise words indeed. I remember arriving at a favourite picnic spot only to find .............!!!

Quite ruined the day out.

Wise words indeed & illuminating.

Mike

Wise words indeed & illuminating.

Ahhhh - "illuminating"....... and thereby hangs another tale, about a Danish (sorry Good Soldier Svejk) Vet who was sued for every pfennig he owned having burned the barn, its hay, all the contents, not to mention himself and the farmer. What did he do?

He demonstrated with a match that the stuff that cows belch up, frequently and expressively, is indeed highly inflammable methane.

(perhaps a bit like the old student trick of igniting fa*ts in the dead of night after a good session down the pub, to light your way home. LOL)

I just love your 'tales' Freshacre.

Mike

I just love your 'tales' Freshacre.

Mike

Cheers for that. I'll see what else intrigues me and inspires a bit of fun and nonsense!!!

Thanks for all the comments and PMs.

George

One reason I went in to 100% small animal practice, to get away from the large amounts of crap! which lead me to end up working with Freshacre for about a year.

I remember one cold day in my green striped trainee Veterinary Nurse Uniform and my wellies going out in to a field with Mike, my boss at the time, to castrate a horse.

I was carrying the entire sterile kit, Mike said for god sake don't drop it, as i'm edging my way through the very muddy pooey gate entrance, but i did slip and god only knows how i managed it but i stayed up right, giving quite an impressive dancing show in the process. Mike stood there pee'ing him self laughing and the horse owner just glared.

On the way home Mike exclaimed that if i had of fallen in the crap i would have been wearing a calving gown on the way back to the surgery! Bit like the hospital gowns.

One reason I went in to 100% small animal practice, to get away from the large amounts of crap! which lead me to end up working with Freshacre for about a year.

You mean someone actually worked with George AND survived?

You mean someone actually worked with George AND survived?

Lol! yeh I survived, some times came home with a headache though! Never known someone with so many ideas!

Gained a good friend out of it though. (he'll be getting a big head now lol)