Yes.
I had the weird, " losing its place" issue on my 2.3-16v 190e also. SOmetimes if you would use a key or combination of unlocking manually and with the key the system would lose its place and try to lock the car when it was already locked or unlock when unlocked. In any case a second attempt would allow the system to realize where it was and work correctly. AND. If this is the only issue with being able to unlock my dorrs without a key fromnow on, I can totally accept it.
It works great is I just dont mess with it. Unlock and lock with key fob and it works correctly every time.

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Christopher Henkel
1990 190E 2.6 - Arctic white SOLD
1986 190E-16v - Blauswartze
1993 300CE - SOLD
2003 W208 CLK 320 Cabriolet - Magma Red