REST Feature
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Joined: Nov 2005
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From: Chicago
2020 S63+2014 E550 Cab+2019 E450
REST Feature
Can anyone confirm whether this exists. In the owners manual It shows as standard equip with the 3 zone climate control. It would show 'Rest' on the bottom part of the A/C button. This is for US models, Canada has it with all climate control versions. Its very useful here in Chicago. thanks!
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From: Central Pa.
2013 GL450 (traded for 2015 Escalade), 2012 Corvette, 2014 Ford Fusion, Previous: 2007 GL450, 2011
Can anyone confirm whether this exists. In the owners manual It shows as standard equip with the 3 zone climate control. It would show 'Rest' on the bottom part of the A/C button. This is for US models, Canada has it with all climate control versions. Its very useful here in Chicago. thanks!
My previous GL's , 07 and 11 both had the "rest" function and, yes, it was useful.
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From: Minnesota
2015 Ram 2500, former 2013 GL350, 2007 GL450
'Rest' is one of the things we lost on the 2013. We also lost the 12V plug at the passenger's feet, under the dash. And for those that had a 2007 we lost the push button to wash the front headlights.
I miss all 3 of those features.
I miss all 3 of those features.
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From: Minnesota
2015 Ram 2500, former 2013 GL350, 2007 GL450
MBWorld Fanatic!
Joined: Mar 2007
Posts: 1,653
Likes: 7
From: Central Pa.
2013 GL450 (traded for 2015 Escalade), 2012 Corvette, 2014 Ford Fusion, Previous: 2007 GL450, 2011
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Junior Member

Joined: Nov 2005
Posts: 39
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From: Chicago
2020 S63+2014 E550 Cab+2019 E450
Thanks for all the replies but here's a picture from page 124 of the owners manual. It shows both the MAX COOL and the A/C-REST (Button 4). It also states US only. It looks like this is only available on GL's with the 3 zone climate option. So my question is, has anyone seen this or is it a typo in the owners manual? My apologies for the bad picture.
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Junior Member

Joined: Nov 2005
Posts: 39
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From: Chicago
2020 S63+2014 E550 Cab+2019 E450
The online owners manual shows it on page 149 but takes it away on page 157. The 'USA ONLY' must be a typo. Oh well, looks like i'll have to learn French to get this feature.
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Joined: Mar 2007
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From: Central Pa.
2013 GL450 (traded for 2015 Escalade), 2012 Corvette, 2014 Ford Fusion, Previous: 2007 GL450, 2011
The manual is a "cover-all-maybe-you-have-it-maybe-we-might-include-it" kind of document!
REST feature in x166 - software coding solution?
Does anyone know if it is possible for the dealer to reinstate the REST feature through software coding? Assumption being it's deactivated in US models. Or is there missing hardware in the vehicle to actually make it operate? For a gas guzzling beast like the x166 it is a great feature to use vs. idling while waiting in the car in cold climates. Thanks
Gas guzzling - kindof funny - for W166/X166 North American models - compressor is electronically controlled "on demand" controled by both temp and dehumidification ("mist" anti-fog windshield) ... kindof interesting tech on air/power/steering systems actually
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From: Cincinnati, OH
2021 GLS580 all black. 2014 GLK black (kids car). formerly: 2014 GL550 Palladium Silver (US)
Is there more than one 12v plug? I found one under back feet of 2nd row passenger. You have to go to disc manual to find the info which you can't do while driving. It's a little cold to sit in the car reading the manual.



