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Post by 20ls01 on Feb 25, 2020 19:53:17 GMT
Hey All,
First post here. Im from the United States.
So I have a 2018 GTI SE. I don't like how the AC turns on when you hit the recirculation button. Can OBDELEVEN disable this?
Reasons why I want to turn this off is because it creates unnecessary wear and tear on the AC and i dont need it to blow cold air if it is already cold outside. It's nice to block stinky outside air and not have the ac turn on. I prefer to manually manage my AC.
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Post by dv52 (Australia) on Feb 25, 2020 23:41:57 GMT
^^^ hmm........ "wear and tear"? You do know that the compressor on a mk7 is the "wobble plate" type? The mk7 AC compressor doesn't have a clutch as in conventional older style cars. So in effect, the compressor is never really switched-OFF. What happens when the AC turns-ON is that an electric valve inside the compressor opens to allow refrigerant to circulate.
In air recirculation mode, there is no air exchange inside the cabin. The air will be used up. Therefore, air recirculation mode should not be used any longer than is necessary, and according to VW - for no more than 15 minutes. In air recirculation mode, the atmospheric humidity in the passenger cabin rises due to moisture released with the air respired by the occupants. When the dew point of the interior air exceeds the temperature of the windows, the windows will inevitably mist up.
Recirculation mode isn't meant to be used for normal travel. It's meant to be used as a way of quickly cooling down and heating-up the interior of the cabin (and for avoiding polutted air- but again for short periods). The advantage of air recirculation is that the compressor drive output required to cool/heat the cabin is more than halved.
If your request was possible, I suspect that it would permanent: it not be switchable at the driver's discretion (other than through OBD11)
So- if you did manage to turn-off the AC compressor when recirculation mode was selected (as you request) the opposite would result - wear and tear would likely be increased (IMO)
Don
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Post by 20ls01 on Feb 26, 2020 0:06:17 GMT
Someone said their 17 GTI does not do this. It has to be in the programming.
Bro, if something turns on and off, its wear and tear. Does not matter how advance the technology is. You turn on and off a light bulb, it's wear and tear.
Have you ever pass by an area where a skunk sprayed or you're following a diesel? Yea, you want to hit the recirculate button so the air doesn't come in. I don't need the AC to turn on for a very brief moment. I will turn the recirculation button when the air is clean again.
All my older cars functioned like this and that's how i prefer it. If OBDeleven can program this, awesome. I will buy the product.
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Post by dv52 (Australia) on Feb 26, 2020 1:38:45 GMT
Someone said their 17 GTI does not do this. It has to be in the programming. Bro, if something turns on and off, its wear and tear. Does not matter how advance the technology is. You turn on and off a light bulb, it's wear and tear. Have you ever pass by an area where a skunk sprayed or you're following a diesel? Yea, you want to hit the recirculate button so the air doesn't come in. I don't need the AC to turn on for a very brief moment. I will turn the recirculation button when the air is clean again. All my older cars functioned like this and that's how i prefer it. If OBDeleven can program this, awesome. I will buy the product. ^^^^ Never even seen a living, breathing skunk - much less, passed "by an area where skunk sprayed"!!! My ONLY knowledge of skunks has been from American TV programs. Here in Australia, we don't have such animals - that said, I would gladly swap your skunks any day with the myriad species of venomous snakes and deadly spiders that inhabit my country!!
If you want to pursue your want', I expect that you will need to experiment with the hex08 module. I've had a quick look through the module and nothing immediately jumps-out as being suitable. There are however a couple of channels in the module that refer to how re-circulation facility operates (like the channel, Recirculation air for production routines). Perhaps look at whether the descriptors for the allowable options for these channels suggest what you want?
Don
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Post by lordnikon on Feb 26, 2020 14:30:41 GMT
Turning the AC on when the outside temp is also cold will not give you cold air. It doesn't work like that.
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2018gti
Full Member
2018 GTI Autobahn 6-speed
Posts: 111
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Post by 2018gti on Feb 26, 2020 18:45:53 GMT
I tried to figure this out as well but didn’t get anywhere. There was an entry in long coding called Window condensation reduction or something like that, but it didn’t change the behavior when I deactivated it.
I did realize that you can turn on recirculate when the climate system is off, which is nice. It helps the windshield to not fog up when you open your windows in certain weather.
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Post by 20ls01 on Feb 27, 2020 18:22:28 GMT
Turning the AC on when the outside temp is also cold will not give you cold air. It doesn't work like that.  I think you missed the point. Not sure what your comment is for.. |
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Post by 20ls01 on Feb 27, 2020 18:23:03 GMT
I tried to figure this out as well but didn’t get anywhere. There was an entry in long coding called Window condensation reduction or something like that, but it didn’t change the behavior when I deactivated it. I did realize that you can turn on recirculate when the climate system is off, which is nice. It helps the windshield to not fog up when you open your windows in certain weather. darn, thanks for your feedback. |
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Post by lordnikon on Feb 27, 2020 19:17:21 GMT
It means your concern about it blasting cold air when you turn on the AC in cold weather is unfounded.
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2018gti
Full Member
2018 GTI Autobahn 6-speed
Posts: 111
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Post by 2018gti on Mar 3, 2020 3:09:17 GMT
I tried to figure this out as well but didn’t get anywhere. There was an entry in long coding called Window condensation reduction or something like that, but it didn’t change the behavior when I deactivated it. I did realize that you can turn on recirculate when the climate system is off, which is nice. It helps the windshield to not fog up when you open your windows in certain weather. darn, thanks for your feedback. No worries, I’ll post back if I figure it out at some point. I totally understand where you’re coming from - sometimes you just want to close off the outside air for a bit, like if there’s a skunk, or a cat-less exhaust GTI is in front of you  VW solved this problem already actually, but not for us Americans. In other countries if you have the auto climate control, you also get an air quality sensor. You can turn on auto recirculate and it does it automatically when it detects a stench, somehow. |
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