Mercedes C class P0089 diagnosed.

[@anaayakhan3181]

My car is c220d 2016 on kick down that code pops up and goes into limp mode what do you think it is mate i put cheap fuel in the car once like an idiot and the car wouldnt start got all the old diesel took out put fresh diesel in the car started up but now everytime kick down the car goes into limp mode mate please help if you can