Heater blows cold until thermostat cranked up over 80 F - Bimmerfest - BMW Forums



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X1 E84 (2011 - 2015)
First generation BMW X1 availbe as a X1 28i with either sDrive (RWD) or xDrive (AWD) or the US exclusive I6 N55 powered X1 35i xDrive.

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  #1  
Old 11-24-2017, 05:44 PM
TK-BMW TK-BMW is offline
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Heater blows cold until thermostat cranked up over 80 F

In our 2014 X1 x28i the heater seems to not put out any warm air now unless the thermostat is turned way up, typically over 80 F. If turned back down to around 65 to 70 F or so, just cold air blows. This happens even if the vehicle has been running for an hour or longer. Does this happen to anyone else? The X3 has a central temperature air flow (hot to cold) control dial in the middle of the dashboard vents, but there appears to be no such thing on the X1. If this is abnormal and there's no easy fix, it's going back to the dealer to be diagnosed.
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  #2  
Old 11-24-2017, 09:02 PM
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kjboyd kjboyd is offline
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Are you using manual or auto mode? My guess is manual.
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  #3  
Old 11-24-2017, 09:03 PM
TK-BMW TK-BMW is offline
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Either way, the result seems to be the same.
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--Tobias

Current:
2014 X3 and X1 xDrive 28i
Previous:
2013 X3 xDrive 28i
Subaru Outback sport, Saab 99 and 99 Turbo, Volvo 264, Honda CRX, Jaguar E-Type drophead coupe and Mk II sedan
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  #4  
Old 11-25-2017, 07:11 AM
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kjboyd kjboyd is offline
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Mein Auto: 2017 Volvo XC60 T5
I know the air is cooler from the upper vents than below, but if you use full auto mode and around 72-74 it should be warm once the car heats up. I had the same issue until I figured it needs to be in auto. Stupid design in my opinion but it *does* work.

Id take it in for a check up.
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Kevin
-------
2017 Volvo XC60 T5 - "Asgaerd"
2015 X1 sDrive XLine - "Hamilton Maxwell"
2009 MINI Cooper Clubman - "Oxley"
2007 Volvo S60 2.5T
2007 X3.0si PlatBronze/Beige
2006 X3 3.0i, Flamenco Red/Beige
1997 528iA, Oxford/Tan
1994 318iS, Black/Gray
1979 528iA, RubyRed, Tan
1971 2002, Sahara, Saddle
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  #5  
Old 11-25-2017, 08:12 AM
TK-BMW TK-BMW is offline
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Thanks! I think I put it briefly in "auto" mode, but maybe not long enough. Can't hurt to get it looked at since it's under warranty if that doesn't make things any better. The X3 design is a lot smarter.
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--Tobias

Current:
2014 X3 and X1 xDrive 28i
Previous:
2013 X3 xDrive 28i
Subaru Outback sport, Saab 99 and 99 Turbo, Volvo 264, Honda CRX, Jaguar E-Type drophead coupe and Mk II sedan
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  #6  
Old 12-11-2017, 09:40 AM
Peach8 Peach8 is offline
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My 2015 x1 sdrive does the same. No heat unless all the way to 84. Took in to dealer & they said all checked out. Though still no heat @ 70s....this is crazy. Service rep said if it continues he will put call into BMW engineer. Has any one gone up higher in BMW to deal with this?
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  #7  
Old 12-11-2017, 09:47 PM
0w40X1 0w40X1 is offline
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I ran the bottom vents with just fan at 60deg f with outside below 60 deg f.

Air stayed cold, but moving temp to 61 deg f gave me all the heat at bottom I needed.

Running fan through middle setting or dash vents gives much colder air until above 70 deg f.

I always leave the inside or outside air setting on auto like recommended.
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  #8  
Old 12-11-2017, 09:51 PM
TK-BMW TK-BMW is offline
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Yes, it seems to work fine with (1) air setting on auto, (2) recirculate "off", (3) use bottom vent for best warmth, (4) make sure dash air flow dials are adequately open.
Thank you!
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--Tobias

Current:
2014 X3 and X1 xDrive 28i
Previous:
2013 X3 xDrive 28i
Subaru Outback sport, Saab 99 and 99 Turbo, Volvo 264, Honda CRX, Jaguar E-Type drophead coupe and Mk II sedan
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  #9  
Old 02-13-2018, 09:37 AM
jpc647 jpc647 is offline
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Mein Auto: X1 35i
I've been noticing this with my car too. Did anyone escalate this to the BMW engineering team for resolution?
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  #10  
Old 02-16-2018, 11:04 PM
TK-BMW TK-BMW is offline
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I think this falls under the category of a "feature" rather than a "bug"!
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--Tobias

Current:
2014 X3 and X1 xDrive 28i
Previous:
2013 X3 xDrive 28i
Subaru Outback sport, Saab 99 and 99 Turbo, Volvo 264, Honda CRX, Jaguar E-Type drophead coupe and Mk II sedan
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  #11  
Old 02-26-2018, 07:19 PM
tripman630 tripman630 is offline
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Mein Auto: E39 530i 5m/t Sport
+1 for same symptom. Hardly gets cold here, but just was an issue
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  #12  
Old 02-27-2018, 07:22 AM
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hooligan_clt hooligan_clt is offline
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Mein Auto: '15 X1 35i M Sport
Hmmm, I don't seem to have this issue on my '15 and I always use the manual settings, never auto.
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  #13  
Old 12-09-2018, 05:53 PM
palpullero palpullero is offline
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I just noticed the same with mine; outside temperature was in the 60s.
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  #14  
Old 12-10-2018, 08:45 AM
kevman2 kevman2 is offline
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Only happens on mine if your just using the middle vents. Use the middle and lower together or any other combination and its works fine.
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Old 12-10-2018, 11:26 AM
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edx1 edx1 is offline
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Welcome to BMW. They believe cold air should be sent out upper vents to keep the driver awake. You'll notice that if the inside cabin air temperature is below a certain point (I don't know the value) it will send hot air to the upper vents. Once the cabin air reaches a certain temperature then changes and sends cooler air to the upper vents and you really only get hot air to the lower vents. They do this on all models I know about, even back many, many years. If someone has a way to override it I'm curious, but the only way I know of is turning heat up all the way to max and then it disables the cabin air temperature check and will send hot air out the upper vents.

I experience the upper vent "hot to cool air changeover" about 3 minutes into driving the car, almost daily, outside air is about 20 degrees F right now. Basically as soon as the car is able to put a fair bit of heat out and the cabin air temperature climbs a little, enough enough to trigger the sensor, the change from hot to cool out upper vents will occur.

Last edited by edx1; 12-10-2018 at 11:30 AM.
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  #16  
Old 12-11-2018, 12:28 PM
Yukoner Yukoner is offline
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Quote:
Originally Posted by edx1 View Post
Welcome to BMW. They believe cold air should be sent out upper vents to keep the driver awake. You'll notice that if the inside cabin air temperature is below a certain point (I don't know the value) it will send hot air to the upper vents. Once the cabin air reaches a certain temperature then changes and sends cooler air to the upper vents and you really only get hot air to the lower vents. They do this on all models I know about, even back many, many years. If someone has a way to override it I'm curious, but the only way I know of is turning heat up all the way to max and then it disables the cabin air temperature check and will send hot air out the upper vents.

I experience the upper vent "hot to cool air changeover" about 3 minutes into driving the car, almost daily, outside air is about 20 degrees F right now. Basically as soon as the car is able to put a fair bit of heat out and the cabin air temperature climbs a little, enough enough to trigger the sensor, the change from hot to cool out upper vents will occur.
I was going to say, I think this is on purpose. This post explains it. My E90 does the same thing.
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Not even sure if -40 degrees is cold anymore ?
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