Hi, I really need some help here!!!! I have a 54 reg C220cdi which is giving me a bit of a headache.....when i put the car in D it takes around 10-15 seconds to actually select the gear, if i play around with the gear selector (nudging towards D) it takes the gear straight away! Does anyone have any idea if it is a box problem or is there adjustment in the selector? (60k on clock)

Cheers, Pony