Power lock problems X5 3.0 2003

[Purejoy]

I wonder if anyone has similar problems. Sometimes after driving (autolock function ok) I can not open door(s) mainly drivers door with internal handle. It is just stuck. Normally you can unlock it with press button on the center console, but todat it did not help either. Only key control works. It feels like mechanical problem, but was wondering if anyone has any experinece of the similar situation and maybe how to solve it w/o going to dealier.

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