I have a 07 57k 2.5t S-max that misfires in 3rd and 4th gear between 2000-2500rpm. 1st and 2nd gear are ok, but it judders badly if you put your foot down in 3rd or 4th. If you are very gentle its not noticeable.
I have had the car serviced and spark plugs changed to see if it cured it. The ECU has also been reset. It is not reading any error codes.
The car is standard but I was wondering if anyone else has come across this in a petrol S-max.
Any help or advice would be great.