[blues60]

Two of my mates who have Audis (spelling?) Audii? have had this and it was a coil pack failing. I may be wrong but I think Volvos have coil packs too. They are small units that sit above the spark plugs which take the place of the old style coils. They some times break down and although the car runs they set it into "limp mode". I think a visit to a Independant Volvo specialist or a dealer is probably requires so they can plug the car in the fault diagnosis system and trace the error message. If it is a coil pack it may be covered under warranty and in any case won't break the bank.