remove a wheel bolt from each rear wheel,jack up car and shine a torch through hole where bolt was you will see a small wheel/ cog mechanism turn this cog till wheel locks up then knock it back a few notches so wheel spins free, do this on both sides. then remove seat base and undo 13 mm nut in centre of floor where base was and adjust the cable slack so there is no play in mechanism but dont over do it. Or pay mercedes about 50 quid and they will do it
dan, March 2009
