I have owned an S-Max for 2 years and although it is a good drive, and very practical for 3 kids, it has had a recurring electrical fault - essentially the battery drains randomly and sometimes within 1 hour from fully charged. All garages seem incapable of fixing it, which is surprising given it is apparantly a relatively frequent fault. This has outweighed all its positive aspects.
If buying an S Max I would recommend a detailed check of the electrical system
