Morning, all. My 2000 Omega 2.5CDX has a sticky lock on the driver's door. Sometimes it pops up. sometimes it doesn't. You can open it with the key from outside, but it sometimes stops the central locking from engaging if it doesn't pop up. I suspect it only needs a bit of lubrication, but does anyone know what I need to lubricate? Is it easy to get to? TIA, Phil