G63 Is gearbox behaving normally? Upshifting readily.
I find that even in sports+ mode I can be going only 30-35mph and the truck is already in fifth gear. Is this normal behaviour? I feel the gearbox up-shifts far too easily.
I also find in fifth gear if you put your foot down, it takes quite sometime to accelerate, like there is a noticeable delay. Combined with the weight of the truck, it can be scary when nothing happens.especially when trying to merge and you think you’re in a low gear but you aren’t.
I can only accelerate fast, if I am manually shifting down to second gear.
Is it by design that it is upshifting so eagerly? Do others have similar experience? What gear are you in at similar speeds?
Last edited by AMG2019; Aug 21, 2023 at 11:29 PM.
I find that even in sports+ mode I can be going only 30-35mph and the truck is already in fifth gear. Is this normal behaviour? I feel the gearbox up-shifts far too easily.
I also find in fifth gear if you put your foot down, it takes quite sometime to accelerate, like there is a noticeable delay. Combined with the weight of the truck, it can be scary when nothing happens.especially when trying to merge and you think you’re in a low gear but you aren’t.
I can only accelerate fast, if I am manually shifting down to second gear.
Is it by design that it is upshifting so eagerly? Do others have similar experience? What gear are you in at similar speeds?
There's also a lag on mine when I push the pedal hard that's noticeable. I think there's a decent amount of pedal travel before the throttle kicks in.




Thanks for the responses. Seems by design then. It works fine if I consistently put it in 1st or 2nd. But here in Atlanta people try to merge on the interstate slow, and sometimes I forget to shift down and catch myself with no power, at exactly the wrong moment. Need to make more of a concerted effort to always downshift I think.




