Haven’t seen this issue discussed before. The inside door handles of both my 2015 328i and previously on my 2013 X3 have developed a stickiness where you grab to close the doors. No, it’s not because I eat sticky candy while driving. It seems to be either deterioration of the black underside of the handle or some seepage where the black back of the handle meets the wood grain front. I’ve tried to clean with a Goof-off product but the stickiness remains. On the X3 it seemed to be deterioration of the rubber inside the handle, which I ended up covering with black electrical tape. Not a perfect solution. Anybody else have this issue? Any success getting rid of it? Not a major performance issue, it certainly irritating. Thanks for anybody’s thoughts.