M-Class (W166) Produced 2012-2015

Smart Key Programming

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Old Jul 19, 2014 | 05:42 PM
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Smart Key Programming

My two previous MLs allowed either the driver door to be unlocked (one push on remote button) or all doors to be unlocked (two pushes on the remote button). My 2014 unlocks all doors with a single push of the button.

Can the key/locking mechanism be programmed to unlock only the driver's door?
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Old Jul 19, 2014 | 06:08 PM
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Old Jul 20, 2014 | 10:20 PM
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Yes it can. Keep the key 12 inches away from the drivers side outdoor handle. Press both the lock and unlock simultaneously for 10 seconds. Done. To reverse it do the same.
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Old Jul 21, 2014 | 10:22 AM
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Thanx much! Worked great. Is this in the Operator's Manal?
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Old Jul 21, 2014 | 01:25 PM
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Thanx much! Worked great. Is this in the Operator's Manual?
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Old Jul 21, 2014 | 01:44 PM
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Originally Posted by skippk
Thanx much! Worked great. Is this in the Operator's Manual?
Yes. Page 80 of the 2013 US version of the manual
Attached Thumbnails Smart Key Programming-7-21-2014-10-43-28-am.jpg  
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Old Aug 1, 2014 | 01:42 PM
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Originally Posted by another_geek
Yes. Page 80 of the 2013 US version of the manual
Wow, I did not know about this, I probably didn't even notice it. Thanks for sharing. This MB manual seems to be the first manual I actually want to read and discover these hidden gems!
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Old Aug 2, 2014 | 07:06 AM
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Off topic from this, however...

Do the smart keys hold any 'settings' as do priority keys in some other brands. I realise you need the memory pack to remember seat and mirror settings etc, but do the keys remember climate control/radio/command settings etc?
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Old Aug 2, 2014 | 11:23 AM
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Originally Posted by hos
Off topic from this, however...

Do the smart keys hold any 'settings' as do priority keys in some other brands. I realise you need the memory pack to remember seat and mirror settings etc, but do the keys remember climate control/radio/command settings etc?
No. The W166 doesn't offer any personalization of settings based on user/key
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