E-Class (W211) 2003-2009

Sunroof auto-close when it starts to rain?

Old Aug 22, 2012 | 05:26 PM
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Sunroof auto-close when it starts to rain?

Do you guys' sunroofs auto close when it starts to rain? Are all W211's sunroofs supposed to do that?

I'm asking because mine doesn't
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Old Aug 22, 2012 | 09:26 PM
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IIRC that was a ROW feature that came about in later MYs. I tried to get it on my MY07 and didn't have any luck.
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Old Aug 22, 2012 | 09:37 PM
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This place is a joke.
Never heard of it...Although some have auto close "tunnel feature" if high levels of exhaust or carbon monoxide are detected outside
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Old Aug 22, 2012 | 10:10 PM
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No. There is no auto-close on rain feature.
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Old Aug 23, 2012 | 02:22 AM
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Originally Posted by E55Greasemonkey
Never heard of it...Although some have auto close "tunnel feature" if high levels of exhaust or carbon monoxide are detected outside
If I remember correctly, tunnel feature was when you hold the recirculate (?) button and it would close the windows/sunroof/turn on a/c with recirculating air.

I don't think there was an auto-detect feature to it.
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Old Aug 23, 2012 | 06:41 AM
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well i never heard of this thing i am hearing it for first time but what is the procedure ?? may be there would be some sensors attached which would respond quickly when water showers on cars roof it gets closed quickly
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Old Aug 23, 2012 | 07:32 AM
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Originally Posted by Lefix
Do you guys' sunroofs auto close when it starts to rain? Are all W211's sunroofs supposed to do that? I'm asking because mine doesn't
Not standard feature for MBUSA furthermore dealer SDS does not have access to activate it but if you locate someone with SDS “Developer” they should be able to activate it.

https://mbworld.org/forums/3086411-post12.html
https://mbworld.org/forums/4348951-post4.html
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Old Aug 23, 2012 | 01:25 PM
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yes you can

for about $100 you can get this feature. check out mbretrofits. no shortage of discussion on this one, search as well.
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Old Aug 23, 2012 | 07:53 PM
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The 'holding the recirculate' button will not only close the sunroof, it will close all the windows. A WOW option to show friends. Don't know anything about he auto carbon sensor though.
If you have recirculate on too long, the car will momentarily let fresh air in and dumb old cabin (carbon dioxide filled) air out the trunk about every 30 minutes.
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Old Aug 24, 2012 | 02:34 AM
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This is came as standard in Taiwan.
I didn't notice it until one day I am cleaning my windshield while the sunroof is opened. When water reach the sensor in windshield, the sunroof is closed automatically!
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Old Mar 14, 2023 | 06:46 PM
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Originally Posted by Lefix
Do you guys' sunroofs auto close when it starts to rain? Are all W211's sunroofs supposed to do that?

I'm asking because mine doesn't
mine does in Australia … started to sprinkle, and it went from fully open to tilted…
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