I gotta say - my Local dealer has just been a real pleasure to deal with for a change. Was dealt with by a guy called Craig Wilson at Rycroft mercedes on the service desk and it was a real delight to talk to someone who obviously knew about the cars he was dealing with in the service. I ended up paying £320 ( Aargh! ), but that included a gearbox oil change ( oil/filter/labour ). There was a reduction as I supplied the oil (fullly synth ) , and as I have just relined all the brakes there was not much to do down there. The only thing they could find wrong was a sticky aerial ( now sorted ). The 'box feels much more positive now, with quicker gearchanges and much faster kick/change downs. I recommend anyone with a box above 50K miles gets the oil changed !