Throttle lag from stop is annoying....
I guess I have gotten used to it. You have to anticipate the delay and get off the brake earlier, allow the MCT to work the clutch into first gear and then you can go for it.
It was definitely a bit of a let down and adjustment when I first got the car. My C63 just went.
Now I tap the gas just a hair before and it has no issue.
You can fake out our tranny's very easily. If you want to be in a lower gear while driving rather then waiting for the normal downshift. Try blipping the throttle really fast . It will down shift without the car accelerating and will hold the lower gear for some time. Ready to take advantage of the power curve without wasting time on the downshift.
The Best of Mercedes & AMG
It doesn't happen all the time that whats gets me, its inconsistent, hope that MB can come up with a solution.
The E63 has the MCTwhich has a wet clutch.
You can feel the clutch slipping when you first start moving.
I am pretty confident that the owners that are complaining about lag and sluggish throttle response are treating the car like any other automatic where you don't have to worry about getting it in gear first.
With this car, or any MCT benz, you need to allow it to slip into gear before you give it a lot of gas. If you mash the pedal quickly before first has engaged the ECU will slow things down while it engages the clutch and then lets all the power go.
Try and think of it the same way you would think of a stick shift. You would get in gear before you gave it a lot of gas. Same thing here.
Again if you look for it you can feel the car slip the clutch into first gear... then you can wait for that sensation and the take-up before giving it a lot of gas.
The E63 has the MCTwhich has a wet clutch.
You can feel the clutch slipping when you first start moving.
I am pretty confident that the owners that are complaining about lag and sluggish throttle response are treating the car like any other automatic where you don't have to worry about getting it in gear first.
With this car, or any MCT benz, you need to allow it to slip into gear before you give it a lot of gas. If you mash the pedal quickly before first has engaged the ECU will slow things down while it engages the clutch and then lets all the power go.
Try and think of it the same way you would think of a stick shift. You would get in gear before you gave it a lot of gas. Same thing here.
Again if you look for it you can feel the car slip the clutch into first gear... then you can wait for that sensation and the take-up before giving it a lot of gas.

My E550 has considerable lag compared to my C63, especially stopped/nearly stopped. I attribute this to the transmission and it's terrible (luxury) programming - even in sport mode it starts in 2nd from a dead stop (unless you floor it or paddle shift down), then it shifts way to soon (car likes to be 1000-1400 RPM) so the turbo's aren't kept spooled. Lag in the C63 is waiting for the spinning tires to hook-up with the road.
Expanding on Cocofishez - in my C63 when stopped if I stab the throttle to the floor it doesn't go as fast as if I roll on it.
Last edited by rediesel; Mar 10, 2015 at 01:58 PM.
My E550 has considerable lag compared to my C63, especially stopped/nearly stopped. I attribute this to the transmission and it's terrible (luxury) programming - even in sport mode it starts in 2nd from a dead stop (unless you floor it or paddle shift down), then it shifts way to soon (car likes to be 1000-1400 RPM) so the turbo's aren't kept spooled. Lag in the C63 is waiting for the spinning tires to hook-up with the road.
Expanding on Cocofishez - in my C63 when stopped if I stab the throttle to the floor it doesn't go as fast as if I roll on it.







