GLE63S - W167, no throttle responds in sharp cornering. Any specialists around?
Thread Starter
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Joined: Aug 2023
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GLE63S V167
GLE63S - W167, no throttle responds in sharp cornering. Any specialists around?
Hi all,
I got a weird situation going on and i don’t where to search anymore.
Recently i converted airmatic to custom coilovers. Since the airmatic is deleted some errors where to be expected.
However there is one issue which is not giving an specific alert, and is not only annoying but also dangerous.
Problem:
when i turn the steering wheel in a sharp angle to make a corner, the throttle stops responding and i can press the pedal down without any power being released.
A good example is when i drive some circles on a roundabout. Or when im at a standstill and turn the wheel fully to the left or right, it starts moving at snail speed and only when i rotate the steering wheel back straight i get back engine power and throttle responds.
The scary thing would be when i take a sharp corner at high speed, this might cause a dangerous situation.
Things tried and failed
-disable lane assist
-disable brake assist
-turn ESP fully off
-pulled the airmatic fuse (less errors though)
Things tried and worked:
-Set and drive in dyno mode
-Get the car in a drift triggering all kinds of errors, activating production mode. Then the problem also disappeared
Conclusion: its seems to be some safety feature, anyone has a clue which it can be??
I need to isolate the issue so i dont loose all the other safety features..
I got a weird situation going on and i don’t where to search anymore.
Recently i converted airmatic to custom coilovers. Since the airmatic is deleted some errors where to be expected.
However there is one issue which is not giving an specific alert, and is not only annoying but also dangerous.
Problem:
when i turn the steering wheel in a sharp angle to make a corner, the throttle stops responding and i can press the pedal down without any power being released.
A good example is when i drive some circles on a roundabout. Or when im at a standstill and turn the wheel fully to the left or right, it starts moving at snail speed and only when i rotate the steering wheel back straight i get back engine power and throttle responds.
The scary thing would be when i take a sharp corner at high speed, this might cause a dangerous situation.
Things tried and failed
-disable lane assist
-disable brake assist
-turn ESP fully off
-pulled the airmatic fuse (less errors though)
Things tried and worked:
-Set and drive in dyno mode
-Get the car in a drift triggering all kinds of errors, activating production mode. Then the problem also disappeared
Conclusion: its seems to be some safety feature, anyone has a clue which it can be??
I need to isolate the issue so i dont loose all the other safety features..
Last edited by GLE963S; Apr 4, 2025 at 02:25 PM.
Senior Member
Joined: Mar 2025
Posts: 406
Likes: 147
From: Toronto
2025 AMG G 63 SUV /// 2025 AMG GT 63 S E Performance 4 Door Coupé
I’m no pro but if I had to take a stab at it.. I’d say the yaw and roll sensors are still active but they can’t tell the airmatic+ to make sure this/that corner gets more pressure cause they’re gone…so it safeties itself into no power for you mode.
Thread Starter
Newbie
Joined: Aug 2023
Posts: 6
Likes: 2
GLE63S V167
when making a sharp corner based on the steering wheel position, it could “expect” a lot of power and the body angle changing. So to counter that upcoming shift it could sent more air pressure to where it would be needed which isnt possible anymore.
However i also pulled the airmatic fuse which should disable the whole system.
Senior Member
Joined: Mar 2025
Posts: 406
Likes: 147
From: Toronto
2025 AMG G 63 SUV /// 2025 AMG GT 63 S E Performance 4 Door Coupé
We had also overwritten them with a value so they would stay in range. But what u mention is interesting..
when making a sharp corner based on the steering wheel position, it could “expect” a lot of power and the body angle changing. So to counter that upcoming shift it could sent more air pressure to where it would be needed which isnt possible anymore.
However i also pulled the airmatic fuse which should disable the whole system.
when making a sharp corner based on the steering wheel position, it could “expect” a lot of power and the body angle changing. So to counter that upcoming shift it could sent more air pressure to where it would be needed which isnt possible anymore.
However i also pulled the airmatic fuse which should disable the whole system.
Thread Starter
Newbie
Joined: Aug 2023
Posts: 6
Likes: 2
GLE63S V167
Yes thats for sure but the strange thing is thats its also doing it when standing still, fully rotating the steering wheel and try to take off.
It will drive a circle in snail speed even when pedal to the floor..
not much body roll going on, especially with the new stiff shocks.
It will drive a circle in snail speed even when pedal to the floor..
not much body roll going on, especially with the new stiff shocks.
Senior Member
Joined: Mar 2025
Posts: 406
Likes: 147
From: Toronto
2025 AMG G 63 SUV /// 2025 AMG GT 63 S E Performance 4 Door Coupé
Yes thats for sure but the strange thing is thats its also doing it when standing still, fully rotating the steering wheel and try to take off.
It will drive a circle in snail speed even when pedal to the floor..
not much body roll going on, especially with the new stiff shocks.
It will drive a circle in snail speed even when pedal to the floor..
not much body roll going on, especially with the new stiff shocks.
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Out Of Control!!
Joined: Nov 2018
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From: San Francisco Bay Area
2019 C63CS
This sounds like ESP is reducing engine power. Specifically the Active Rollover Protection. ESP in the SUV models is never fully off, except in dyno mode and such. The active rollover protection remains active to avoid going wheels up as said above. The suspension is an integral part of the active rollover protection as its sensors tells the system what the body is doing. What's likely happening in your case is that it no longer gets the expected information form the suspension, so the body movement doesn't correspond with what's expected and the algorithm will simply cut the engine power to keep it safe. You can't just override the sensors with fixed values as this whole thing is a dynamic situation. The body movements are a result of the throttle and steering input, so those values need to reflect reality for the active rollover protection algorithm to correctly decide what to do.
Has anybody successfully replaced Airmatic with coilovers in one of these SUVs? I've never come across somebody doing this. On non-SUVs it's a common mod, but those vehicles don't have active rollover protection.
Has anybody successfully replaced Airmatic with coilovers in one of these SUVs? I've never come across somebody doing this. On non-SUVs it's a common mod, but those vehicles don't have active rollover protection.
Last edited by superswiss; Apr 11, 2025 at 01:05 PM.
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From: New York
2024 GLE 53 SUV
This sounds like ESP is reducing engine power. Specifically the Active Rollover Protection. ESP in the SUV models is never fully off, except in dyno mode and such. The active rollover protection remains active to avoid going wheels up as said above. The suspension is an integral part of the active rollover protection as its sensors tells the system what the body is doing. What's likely happening in your case is that it no longer gets the expected information form the suspension, so the body movement doesn't correspond with what's expected and the algorithm will simply cut the engine power to keep it safe. You can't just override the sensors with fixed values as this whole thing is a dynamic situation. The body movements are a result of the throttle and steering input, so those values need to reflect reality for the active rollover protection algorithm to correctly decide what to do.
Has anybody successfully replaced Airmatic with coilovers in one of these SUVs? I've never come across somebody doing this. On non-SUVs it's a common mod, but those vehicles don't have active rollover protection.
Has anybody successfully replaced Airmatic with coilovers in one of these SUVs? I've never come across somebody doing this. On non-SUVs it's a common mod, but those vehicles don't have active rollover protection.
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Perhaps in the future they will have a solution that works with the conjunction of these systems. What was the main reason you went with coilovers, OP?
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From: Colorado
'21 AMG53 wDPP & ARC, 19 GLC300 - Former-03 C240,2 ML BlueTecs,20 GLE450 E-ABC,15 Cayenne D,17 Macan
Since the arrival of the CAN-BUS system (90's), there's probably no way to "just unplug" a device, since the Signal Acquisition Modules are continually sending queries and waiting for responses.
There are likely dozens of sensors feeding the Nanny, especially with the Official Fear of SUV rollover became law ('99). Stems from the "Unsafe at Any Speed" (
) Suzuki Samurai, then the Ford Explorer.
There are likely dozens of sensors feeding the Nanny, especially with the Official Fear of SUV rollover became law ('99). Stems from the "Unsafe at Any Speed" (
) Suzuki Samurai, then the Ford Explorer.
Out Of Control!!
Joined: Nov 2018
Posts: 11,432
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From: San Francisco Bay Area
2019 C63CS
Yeah, SUVs are inherently ill-designed with their high center of gravity. Add gobs of power and you have a recipe for disaster unless there are safety systems that keep the average driver from flipping these things over and potentially killing themselves. Mercedes failing the moose test with the original A Class was enough bad press for them, so they won't let people flip over their SUVs even with ESP off.
