C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Little central locking issue. Doors auto unlocking

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Old 02-19-2012, 04:51 AM
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Little central locking issue. Doors auto unlocking

My w203 locks its door automatically when I start to drive. But lately the doors unlock about 2-4 mins into the drive (after they auto lock). Is there a reset switch or something I can do to diagnose the fault?

/posted using smartphone\
Old 02-19-2012, 07:46 AM
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Ok, there was something knocking around in my boot I forgot I put in there. I bet that set the sensor off. I'll report back if it reoccurs. Sorry for wasting time. Feel free to delete this thread Mr Glyn.
Old 02-19-2012, 10:36 AM
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Let's let it live & report back. The ESP Yaw module is in the boot & does not like being knocked about. This behaviour can also be caused by a malfunction of the LH front wheel ABS sensor that triggers the lock or a faulty crash/impact sensor.
Old 02-20-2012, 05:45 AM
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Thanks, seemed fine today, but time will tell.

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