Sunny9

You all were spot on. I have ZERO on the boost reading. Max HP was about 212, no matter which gear I try (low or mids). I made a video so I can show the dealer, who is Mr. Defensive. Will call them tomorrow.

David Tryansky

Just picked up a 19 C63 AMG with under 5k miles and driving home noticed this same issue. Making a dealer visit about this soon. Definitely lacking power. I guess the previous owner didn't even notice 🙄

Matthew Cohen

Probably not your issue, but I have a 450 and even if I floor it, I will not get a downshift unless I trip the "kickdown" switch (the click at the bottom of your gas pedal travel). Pedal full to the floor car will be at 3k rpm and will just accelerate in the gear Im already in, unless I trip the downshift switch, in which case the downshift is quick and its max accel.


Edit: this is in C and S, S+ is much more responsive to pedal pressure.