So my car went into the limp mode today due to P0087 error. I had to refill the tank at the shady gas station (Exxon) so i hope it's due to a poor quality fuel. I always use Shell V-Power 93 and never mixed the fuel before until now.. I have 15k on the clock, 0 issues before. Cleared the error, the car remained with the reduced power for 20 miles or so and became normal again. Should I look into the fuel filter replacement? What do you guys think?

I already checked into this as I like halving the recommended maintenance interval for everything on this car. Apparently the fuel filter is a part of the fuel tank and there is not replacement parts. This was our parts guy told me. Can you look into this a bit more and let me know what your finding is?

I still maintain your limp mode was caused by the tune. And there are other codes with it.

I checked codes today at the repair shop, there were none related to the engine or transmission. But I was surprised to see how smart the car is by throwing an AIRMATIC code saying that i have too much negative camber in the front.
Tuner replied to me today "I believe the car was too hot as we have seen overheating is an issue at the track during hot summer months." This is also makes sense as it was already after 2 hours drive from NYC to Pocono, and 1 hours 15 minutes on the track. My previous track days were on cold days..

But we don't have airmatic. How did it know?

It was like this AIRMATIC>AMG RIDE CONTROL.

Thats intense. I am lowered too but did not get any errors like that. Did you get an alignment done? How is your camber like?

-2.8 in the front. I decided not to as it involves removing the control arm. Will be cheaper to get a new set of front tires before I return the car..

I am going to get Kmacs when I get the C 63s lowered.