Hello Dave, I still have the same problem but it only happens now and again. While we had the warm weather I stripped off the door cards to check the cable condition behind the panels. I was thinking that the plastic coating was causing the problems, but all the cable coatings behind the panels were good. While I had the panels off I gave the moving parts a clean and check before adding a little lube. Put all the panels back on for both of the doors and gave them a test. The passenger side door worked fine but the drivers side door was slower then the other side, both doors closed and locked no problems. They were both fine for a couple of weeks, then one day at work I got out of Buzz using the drivers side sliding door and it opened but then would not close completely without a little help. When I got home that night I tried again and the door opened and closed correctly with no problem. So at the moment I only use the side doors if needed. So having checked all the cables and workings, door sensors and the gulleys and made sure the the battery was tested and fully charged I am no further forward. Used Buzz to go on holiday this year, ended up stashing the rear seats to the sides which gave us more luggage space but if there was any futher problems with the side doors gave good access to the middle seats.Sorry I have no easy solution, it is a matter of going through everything. Cheers Gruf