Afterwards I was told that it needs to be booked in again for:
1). The roof mechanism to be stripped down because the boot creaks when in operation.
2). The engine to be looked at as it looses revs and becomes "lumpty" at standstill.
Went straight to Riverdale Mercedes dealers in Brighton, took a test drive (wow) and bought the new 230 SLK for 30K.
Sorry folks, but the leak, stripped doors etc etc etc I could put up with, the rest was one straw too many.
I'll still have my CC over the summer though which will be fun as I've got six month's to wait again for the SLK so I won't think about selling it at least until the autumn.
Robbie