No problems mine as been running the same as before the recall, I have not noticed any improvements in mine just the samedavidb said:Having duly put my antara in the hands of the dealers for the recall regarding the cooling system and "upgrade?", and having my doupts ref the upgrade, as the motor was running perfectly, my fears were proven, there has been a problem since the dealership got ther hands on my motor. Since the upgrade the power output has deminished and has nearly caused a few accidents, the daler has said that the "EGR valve" has sooted up and therefore not working properly, booked in for a repair and replacement, I think for a 8 month old motor it shocking. Has anyone else had this problem ????.