C200 CDI fault code 6264

[MichaelH2390]

hi can anyone help im currently stuck with this fault code on my car two injector seals went on my car so i had that problem solved but the car has been stuck in limp mode with ESP inoperative since i fixed that problem can anyone suggest any actions i was going to try a terraclean to see if that would solve the problem i can clear the codes but it always comes back after a few minutes