Hi - I recently took ownership of a 2007 CLS500 - been a great drive until I went to close the boot recently using the boot close button and it only closed half way. Now when I try to open or close the boot it only goes half way. I noticed that when it opens half way, the lights on the two buttons do not light up, if I manually lift the boot to the fully open position they light up again but when pressing either it simply closes half way again. Anyone know if the system can be reset? Thanks in advance.