Heater help

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Woody93
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Car model: 2010 BMW 118D M Sport 5dr Hatchback
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Heater help

Post by Woody93 » 08 Oct 2014, 11:41

Hiya everyone, basically I have a 2010 118D, I've only just noticed this problem but when I get into my car when it's been left for a good few hours, I always leave my inside heater on auto and when I start my car it doesn't put any air through any of the vents, if I turn the temperature right down to 16, it puts the air through faster than if you have it on any other heat, which I think is normal as it has always done this, the same with 28 degrees, so as I say when I turn it down to 16 it starts putting air through and then it works normal, so after I've put it to 16, then go to 28 it works absolutely fine, when I first start it also at 28 and turn the speed up, it does absolutely nothing, but again works fine if I turn it down to 16, when I get it working fine by going to 16 and the car is warm and say I leave it for 10 mins or so while it's still warm, start the car on 28 and it works normal, if I take the heater setting off auto and leave the car until the morning, the air comes through fine, then I press auto again to see if it works on 28 and still no air until like I say, I turn it down to 16, I was wondering if anybody has a solution for this problem or if anybody has had this problem with their bmw

Thanks and all helps appreciated

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M60NJP
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Re: Heater help

Post by M60NJP » 08 Oct 2014, 11:50

Not sure I completely understand the problem - but have you checked the settings in the i-drive? In my 1-series there is an option to pre-set the cooling 'vigour' to 'Soft', 'Medium' or 'High' and this determines the fan speed regardless of the chosen temperature. So - if set to 'Soft' - on a hot day it'll take longer to cool the car as the fan speed will be low. On a cold day it would take longer to heat the car.

The fan in mine is disappointingly loud so I 'suffer' the slow heat/cool for a peaceful cabin!!

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Woody93
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Re: Heater help

Post by Woody93 » 08 Oct 2014, 12:41

I don't have the i-drive in my 1 series I don't think so I'm not sure if I have any of those kind of settings like you do?

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FAB_BMW
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Re: Heater help

Post by FAB_BMW » 08 Oct 2014, 12:59

I wonder if the 1-series use the famous Final Stage Resistors (Hedgehog) that causes so many other issues in other BMW's.

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M60NJP
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Re: Heater help

Post by M60NJP » 08 Oct 2014, 14:12

Why not give this a try?

http://www.bmwenthusiasts.co.uk/forum/v ... 141&t=6192" onclick="window.open(this.href);return false;

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Woody93
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Re: Heater help

Post by Woody93 » 08 Oct 2014, 15:09

M60NJP wrote:Why not give this a try?

http://www.bmwenthusiasts.co.uk/forum/v ... 141&t=6192" onclick="window.open(this.href);return false;
Thanks, I'll give that a try and see if I get an answer to the problem, thanks!

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Stratts
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Re: Heater help

Post by Stratts » 08 Oct 2014, 16:46

Don't forget that auto will set the fans to blow on the foot wells when warming up and the face vents are only used for cooling.

This is because of the theroy that heat rises so blowing warm air onto the floor will heat the cabin up quicker. Are you sure this isn't what is happening?
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Woody93
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Re: Heater help

Post by Woody93 » 08 Oct 2014, 16:56

Stratts wrote:Don't forget that auto will set the fans to blow on the foot wells when warming up and the face vents are only used for cooling.

This is because of the theroy that heat rises so blowing warm air onto the floor will heat the cabin up quicker. Are you sure this isn't what is happening?
Yeah I'm pretty sure that it isn't this that's happening as if I leave it overnight and come out to it in the morning, when I turn it to 16 and then turn it back up to 28 it blows out quick like it normally does, and even when it doesn't blow out, when I turn the air power up, there's no change

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