I have a 57 plate 41,000 mile 220d. If I am in traffic moving constantly and the revs are between 2000 to 3000 at a constant speed the revs start to go up and drop un controllably, or until you increase the pressure on the accelerator or decrease pressure. Lexus say they cant find a problem as there is no error code aaaaagh. Anyone have or had the same problems please let me know as only had the car 2 months and starting to hate it already. Its not my first lexus but my fourth so its not as thought am not used to the type of car. Can anyone shed some light on the prob so I can get it sorted. Its also really slow on moving off and has to have alot of revs to get going. Heeeelp!!!!