2007 Mercedes-Benz SL550 Q&A

2007 Mercedes-Benz SL550 Question: I have a s550 m.Benz 2007 and everytime I apply the gas pedal it feels very weak

The speedometor is down to almost "0" What can it be? Should I be worried. ? I'm not getting any (check-engine) -
Answer 1
im not sure what you are talking about/be more specific also include milage and last date of major service B -
Answer 2
need more info to adv -