C63S E Performance power loss between gear change
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Joined: Oct 2017
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C63S E Performance
C63S E Performance power loss between gear change
Anyone else have this problem?
When changing from 4th to 5th gear, and you fully accelerate, there seems to be a sudden power loss, for about a second. I can see the electric motor power display jumps down to zero, and then back up again. Not a nice feeling when your foot is flat on the gas/accelerator.
Can has been run in, done 1600km
Taking to dealer next week
When changing from 4th to 5th gear, and you fully accelerate, there seems to be a sudden power loss, for about a second. I can see the electric motor power display jumps down to zero, and then back up again. Not a nice feeling when your foot is flat on the gas/accelerator.
Can has been run in, done 1600km
Taking to dealer next week
Out Of Control!!
Joined: Nov 2018
Posts: 11,468
Likes: 5,356
From: San Francisco Bay Area
2019 C63CS
Yes, the 2 speed transmission on the rear axle changes to the second gear at 120 kph/75 mph and it cuts power when that happens. It's one reason I dislike this car. The main transmission shifts delayed in manual mode and then just when you shift around 120 you have this additional power cut until it continues on after the shift. Felt this constantly on the track last month in Germany. This powertrain sucks, plain and simple. So much going on and it's always in your face, giving inconsistent performance and laggy response.
Last edited by superswiss; Oct 6, 2024 at 06:11 PM.
Thread Starter
Newbie
Joined: Oct 2017
Posts: 5
Likes: 0
C63S E Performance
Anyone else have this problem?
When changing from 4th to 5th gear, and you fully accelerate, there seems to be a sudden power loss, for about a second. I can see the electric motor power display jumps down to zero, and then back up again. Not a nice feeling when your foot is flat on the gas/accelerator.
Car has been run in, done 1600km
Taking to dealer next week
When changing from 4th to 5th gear, and you fully accelerate, there seems to be a sudden power loss, for about a second. I can see the electric motor power display jumps down to zero, and then back up again. Not a nice feeling when your foot is flat on the gas/accelerator.
Car has been run in, done 1600km
Taking to dealer next week
Out Of Control!!
Joined: Nov 2018
Posts: 11,468
Likes: 5,356
From: San Francisco Bay Area
2019 C63CS
Thread Starter
Newbie
Joined: Oct 2017
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C63S E Performance
Will try in auto mode and see what it does. I hope they come up with a software fix.
Out Of Control!!
Joined: Nov 2018
Posts: 11,468
Likes: 5,356
From: San Francisco Bay Area
2019 C63CS
Not sure why you didn't feel it in the demo car, but it's what it does. The AMG instructors specifically called it out as being by design. I found it super annoying. Didn't pay attention to what gear it happened, but the instructors said it happens at 120 kph. It coincided with when I shifted manually into the next higher gear and the power went completely flat for like 1-2 seconds before it finally gets going again. It sort of felt like when traction control kicks in. This was on top of the main transmission having a delay when shifting manually. I did not like this powertrain at all.
Last edited by superswiss; Oct 8, 2024 at 02:54 AM.
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Out Of Control!!
Joined: Nov 2018
Posts: 11,468
Likes: 5,356
From: San Francisco Bay Area
2019 C63CS
What a stooch you are. Only 2 posts and you have nothing better to contribute? It's always the newcomers who think they have something to say to the people who have been here for years and have helped countless members.
Last edited by superswiss; Oct 8, 2024 at 01:46 PM.
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His experience is more genuine thanany journalist that most likely got paid somehow to write a favourable review for MB or risk having no more press cars for them to test next.
On top of that, his experience is even more genuine because he personally owns the previous generation C205 C 63 S and therefore an actual owner.
Out Of Control!!
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From: San Francisco Bay Area
2019 C63CS
He had hands on actual experience with the vehicle pushing the vehicle to the limits at the driving event : https://mbworld.org/forums/c63-c43-a...ve-c63-se.html
His experience is more genuine thanany journalist that most likely got paid somehow to write a favourable review for MB or risk having no more press cars for them to test next.
On top of that, his experience is even more genuine because he personally owns the previous generation C205 C 63 S and therefore an actual owner.
His experience is more genuine thanany journalist that most likely got paid somehow to write a favourable review for MB or risk having no more press cars for them to test next.
On top of that, his experience is even more genuine because he personally owns the previous generation C205 C 63 S and therefore an actual owner.
MBWorld God!
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Posts: 32,515
Likes: 6,350
Ya, you're welcome, I thought it was necessary to make it clear like I mentioned in the previous post, your experience is much more genuine than many journalist out there due to the concept of early access and test drives/press cars, can say the same for electronics, like smartphones, which they tend to be more favorable towards a car and manufacturer as a result.
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Posts: 78
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A45 AMG
Anyone else have this problem?
When changing from 4th to 5th gear, and you fully accelerate, there seems to be a sudden power loss, for about a second. I can see the electric motor power display jumps down to zero, and then back up again. Not a nice feeling when your foot is flat on the gas/accelerator.
Can has been run in, done 1600km
Taking to dealer next week
When changing from 4th to 5th gear, and you fully accelerate, there seems to be a sudden power loss, for about a second. I can see the electric motor power display jumps down to zero, and then back up again. Not a nice feeling when your foot is flat on the gas/accelerator.
Can has been run in, done 1600km
Taking to dealer next week
There is a gear change for the electric engine that takes about 0,5s and there is a delay in acceleration there. The power from the gas engine seems to also be diminished during this change.
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Joined: May 2018
Posts: 606
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From: Toronto, Ontario
2008 C300, 2015 CLA 45 AMG, 2018 SLC 300, 2019 C43 AMG coupe, 2024 AMG C63SE , 2026 AMG GT55
Anyone else have this problem?
When changing from 4th to 5th gear, and you fully accelerate, there seems to be a sudden power loss, for about a second. I can see the electric motor power display jumps down to zero, and then back up again. Not a nice feeling when your foot is flat on the gas/accelerator.
Can has been run in, done 1600km
Taking to dealer next week
When changing from 4th to 5th gear, and you fully accelerate, there seems to be a sudden power loss, for about a second. I can see the electric motor power display jumps down to zero, and then back up again. Not a nice feeling when your foot is flat on the gas/accelerator.
Can has been run in, done 1600km
Taking to dealer next week
MBWorld God!
Joined: Dec 2019
Posts: 32,515
Likes: 6,350
Interesting. I have definitely read about this and seen it mentioned in video reviews. I have not noticed it as of yet, but perhaps Ive not focused too much on it. Will keep an eye out for it going forward. To be fair, I am driving in Individual mode for daily driving ( all sport settings aside from engine which is on moderate setting aka comfort). Next time Im in sport plus or race and pushing it, I will see though.
Super Member
Joined: May 2018
Posts: 606
Likes: 105
From: Toronto, Ontario
2008 C300, 2015 CLA 45 AMG, 2018 SLC 300, 2019 C43 AMG coupe, 2024 AMG C63SE , 2026 AMG GT55
MBWorld God!
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Posts: 32,515
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Thread Starter
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C63S E Performance
Also, it does not matter what gear it is in. It happens from a low speed, and once it reaches 120km/h, the battery motor power jumps to zero and there is about a second loss of power.
I really hope they come up with a fix.
MBWorld God!
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Update. So when driving it in D-Drive mode, (not in M-Manual) mode, then there is NO power loss at all at 120km/h. Which makes this really strage.
Also, it does not matter what gear it is in. It happens from a low speed, and once it reaches 120km/h, the battery motor power jumps to zero and there is about a second loss of power.
I really hope they come up with a fix.
Also, it does not matter what gear it is in. It happens from a low speed, and once it reaches 120km/h, the battery motor power jumps to zero and there is about a second loss of power.
I really hope they come up with a fix.
Out Of Control!!
Joined: Nov 2018
Posts: 11,468
Likes: 5,356
From: San Francisco Bay Area
2019 C63CS
Update. So when driving it in D-Drive mode, (not in M-Manual) mode, then there is NO power loss at all at 120km/h. Which makes this really strage.
Also, it does not matter what gear it is in. It happens from a low speed, and once it reaches 120km/h, the battery motor power jumps to zero and there is about a second loss of power.
I really hope they come up with a fix.
Also, it does not matter what gear it is in. It happens from a low speed, and once it reaches 120km/h, the battery motor power jumps to zero and there is about a second loss of power.
I really hope they come up with a fix.
Last edited by superswiss; Oct 14, 2024 at 12:43 PM.
