We have exactly the same problem, glad to hear that it isn't just our imagination as the dealership wouldn't believe us for months. Finally had it happen to themselves in front of my wife when they went to move the the car from the carpark into the garage but still couldn't find a problem with it!!! This is our second S-Max, as the first had the same problem together with a whole host of others and after continual complaing by us and the car being in the garage all the time, the dealership actually swapped it for another! We've just had to live with the problem for the last three years but it doesn't mean we're happy with the situation. Would be interested to hear how you get on
We've also got an S-Max 56 plate with 52000 miles on the clock. It's currently in the garage having the dual mass flywheel replaced. Fortunately for us we had an extended 5yr warranty and Ford have confirmed it's covered by that otherwise we were looking at eye watering better part of £1000 for the part and labour!! Whilst it's in, the handbrake is also being replaced and the front passenger airbag is being replaced....it's only taken over two years of complaining about the airbag warning light for them to be able to actual find a fault even though it's been on when they've had the car in the garage to search for it. They've now said that it's not covered by the extended warranty but would have been by the normal warranty!! You'd think that considering the amount of new parts on the car that nothing would go wrong but it still manages to spend more time in the garage than on my drive! Good luck with the repacement part and sorry to hear that you're having the same experience with your S-Max as us....we certainly won't be buying another Ford in the future!