03-19-2019, 12:02 AM | #1 |
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HVAC system has mind of its own.
I’ll turn on my AC and set it to the dash vents, for my face, not the windshield
AUTO off Recirc off (not on A or M, no lights on) It will normally start off pretty weak(not really sure where it’s blowing the air), I’ll be driving and it will finally switch to dash vents and air pressure has a strong increase, so obviously it switched to correct setting. My question is, is this normal? It does it every day. I just patiently wait it out |
03-19-2019, 11:42 PM | #2 | |
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03-20-2019, 06:18 PM | #3 |
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I apologize for the rant, ahead of time. But I've never been able to figure out the climate control in this car. It's horrible -- especially when not in 'auto'.
I miss the simplicity of just having ONE temperature control. The driver should be able to set the temp and forget about it, especially in a car that has "automatic" climate control. I've only found it livable by setting it to "auto", but even then I have to constantly mess with the rheostat, especially in the winter. It seems like maybe after the car warms up I can have the rheostat cranked all the way to hot or cold and nothing changes at all, there's barely any air coming out, etc... so I don't know. It's dumb. When not in "auto", though, regardless of the A/C being on, or off, the climate control has a mind of it's own -- especially on long drives. I've had the cabin temp cranked down as low as it will go, the rheostats cranked all the way to cold, and there will be 90+ degree warm air cranking out of the vents -- on a cold winter's day. WTF?? BMW really called this one in -- super low effort. Last edited by natesi; 03-20-2019 at 06:40 PM.. |
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03-20-2019, 06:22 PM | #4 | |
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03-20-2019, 07:26 PM | #5 |
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I just leave mine in AUTO with the temps set for driver's and passenger's sides, and modify the cold/hot air coming through the center vents as needed - I've never had any issues with this set-up. I note that OP is just south of Redlands and my suggestion is to try leaving it in AUTO all the time with circulation in "A" since our climates are very similar.
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03-20-2019, 07:37 PM | #6 |
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That's weird mine doesnt act like that, the only complaint I have is that smell
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03-20-2019, 08:05 PM | #7 |
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Just tell yourself its Parmesan.
= ) I know what you mean though. But I don't think I've ever smelled it in mine. Guess I'm lucky. Last edited by natesi; 03-20-2019 at 10:15 PM.. |
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03-20-2019, 09:30 PM | #9 |
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It's more like Limburger. But cleaning the AC coils isn't difficult, nor is changing the filter.
I leave my AC on auto as well, no complaints. Other than putting it on Max to cool the car faster on a hot day it's on auto all the time. Even though I don't use all the other adjustment options and could live without them myself experience here says that if the system didn't offer those adjustments people would complain about that too. |
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03-20-2019, 09:39 PM | #10 | |
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03-20-2019, 10:57 PM | #12 |
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Same here about the center dial control, that's the only thing I use to modify the incoming air temp through the center vents. I notice that the new models don't have the center dial anymore, so maybe that option has been taken away? It's a sad day!
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03-20-2019, 11:01 PM | #13 | |
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03-21-2019, 12:31 AM | #14 | |
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Heck it even sounds like the new BMWs addressed these issues, I now know they don't have the center dial, and know they have a sync feature. |
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03-21-2019, 07:51 AM | #15 | |
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I don't understand all the negativity about a HVAC system that works fine on Auto, has an additional level of face vent temperature adjustment so that users can tune the air temperature to the face. Brilliant 'additional' option to a HVAC system, which many totally understand and value. All BMW HVAC systems I've ever used are set and forget. Auto, AC on, select cabin temperature, set intensity, set preferred face level temperature and don't fiddle. (Mid thumbwheel position is pretty much neutral, as if it is not there). The only thing that may need adjustment, is when the driver wants a change in face level air temperature. That is "advanced climate control" for you! Only caveat, there is something wrong if 'Auto' doesn't just work unobtrusively in the background, doing its job efficiently. Once we drop out of Auto and choose our own way of running it, we have some functions still working automatically and others manually. |
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03-21-2019, 07:57 AM | #16 | |
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How does it work in full Auto? If it does the same sort of erratic flows in Auto, there is likely something wrong and requires investigation. |
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03-21-2019, 09:51 AM | #17 |
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I only use the HVAC in manual unless I’m on a road trip where the temperature in the car has time to stabilize. It works well enough, but I agree the system is fiddly, and has always been fiddly going all the way back to my first new 1995 325i.
For heat, I’ve definitely noticed that the system blows soft for a few minutes until warmed up. Then the fan speeds up to the set fan speed once warm air is actually available. Not sure if I’ve noticed the same with a/c for cool air, but I wouldn’t be surprised at similar behavior. |
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03-21-2019, 10:15 AM | #18 |
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It does, the car's smart enough to know that it's counterproductive to have the fan blow at full intensity until there's something worthwhile to blow.
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03-21-2019, 10:27 AM | #19 | |
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03-21-2019, 10:44 AM | #20 | |
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In manual mode, depending on how it is set, there are still some auto functions. There is the possibility it could be faulty. There have been issues in some examples. |
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03-21-2019, 10:51 AM | #22 | |
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Face level temperatures are also influenced by the thumbwheel setting and outside ambient temperature. There is a 'comfort' element to how the air flows, both in volume and temperature. The system is much more advanced than many users appreciate. It is where the Auto setting 'shines'. |
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