Using 2010 prices from a well known specialist, the following information should give you some idea of the approximate servicing costs of an F355.
Servicing should be carried out according to the official schedule. In many cases this means servicing on time rather than on mileage. For items like the cambelt, this *must* be done on time regardless of mileage covered since the last time it was done. The costs listed below are taken from a couple of well known independants in the South of England.
Major Service (18k)
|Cambelt + Major Service||£1395|