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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > 2012-2019 BMW 3 and 4-Series Forums > General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > Is the auto start-stop linked to a specific key?
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      02-05-2013, 12:28 PM   #1
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Drives: Tube/bus
Join Date: Dec 2012
Location: London

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Is the auto start-stop linked to a specific key?

Yesterday my husband forgot my keys were in his coat and he took them to work, so I had to use the spare key. We've had the car 6 weeks but this is the first time we used this key. I was out most of the morning, the engine was warm, and it was a miraculous 50 degrees out, but the a.s/s didn't engage. Normally it does in these conditions.

Is the feature linked/coded to the specific key? I've never minded it turning on, I'm just curious why with that key it didn't. I figured it would be an all or nothing feature, not key specific (if it in fact is).
2006 328d Touring, 2008 318i, 2008 118i, 2012 328i
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      05-04-2013, 11:43 AM   #2

Drives: 335i
Join Date: Apr 2010
Location: The North

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Not sure if this addresses the technical workings of A.S.S. but if you had your A.S.S. reconfigured so that it remembers the last user setting, then YES it is linked to a specific key. Thus, you should bring in both keys to have it reconfigured to the A.S.S. IF you had BMW update the A.S.S. software to remember the "last user setting".

Both my keys work great with the reconfiguration.
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