Driver side door sometimes not unlocking from the remote key

[dexter895]

My 406 has some wired problem where sometimes driver side door won't unlock with remote key but lock is working. But the center lock works just fine. If the key is put into door it will unlock and lock without any issue.

What could be the issue?
406 D9 1999 L6A

[frog]

But the center lock works just fine.

What do you mean with "center lock"

if the door does always unlock when you operate (or "help" operate) it mechanically, I think the mechanism needs some oiling, e.g. with ample WD40.

[dexter895]

But the center lock works just fine.

What do you mean with "center lock"

if the door does always unlock when you operate (or "help" operate) it mechanically, I think the mechanism needs some oiling, e.g. with ample WD40.

Center lock works means, when I put my key into car and tried to unlock it unlocks and locks just fine.

[batrst]

you mite need to change battier in fob , if that dont work then re sink key with car . put key in turn on hold lock button for 10 seconds then turn key back and take key out , wate 20 secondes then try key

[steve_earwig]

when I put my key into car and tried to unlock it unlocks and locks just fine.

I suspect that's what Frog means by operating it manually. Hopefully it is just stiff and soaking it in WD (or similar) will sort it out. Other than that the solenoid might be on its way out or there's an electrical fault (wires going from the pillar into the door are good at this) but start with the easy stuff first.

[dexter895]

when I put my key into car and tried to unlock it unlocks and locks just fine.

I suspect that's what Frog means by operating it manually. Hopefully it is just stiff and soaking it in WD (or similar) will sort it out. Other than that the solenoid might be on its way out or there's an electrical fault (wires going from the pillar into the door are good at this) but start with the easy stuff first.

Thank you will check and tell you.