Front End Shudder
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Super Member
Joined: Sep 2014
Posts: 660
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From: Franklin, TN
2019 E450 wagon: 2019 BMW 430i: 2013 Chevy Traverse: (departed)2013 SL550 & 2019 E450 cab
Front End Shudder
My 2019 E450 cab, 8700 miles but new to me, exhibits a pronounced shuddering through the steering wheel when I encounter any type of significant bumps at highway speed; like expansion joints at a bridge transition. Odd, it only does it in Comfort setting; when I set it to Sport, or Sport +, there is no shuddering. It really feels like strut bounce, more than a bushing issue. So I am thinking that with the variable flow in the lowered suspension with the amplitude dependent damping system, there may be a strut issue. Has anyone encountered anything similar? I have an appointment at the dealership for the end of this week to have it checked. Thanks!
In the MB E class into information, they post the following on the Agility Control with selective damping system:
The comfortably tuned, conventional suspension / damping of the E-Class is designed as a road surface-dependent damping system. The front axle suspension strut is attached to the body with a triple-path head baring. With this system, the static carrying forces are transmitted directly to the body via a plastic shim. Large forces (e.g. when shock absorbers bottom out) are absorbed by a jounce buffer.
The function module consists of a small elastomer piston, which reduces the damping effect in the event of minor road surface excitations. This considerably improves the driving compfort and the response of the suspension in particular. For heavier road surface excitation, the full damping effect is available.
It goes on to show the diagram of the strut assembly, showing the components. We'll see what the dealership says.
In the MB E class into information, they post the following on the Agility Control with selective damping system:
The comfortably tuned, conventional suspension / damping of the E-Class is designed as a road surface-dependent damping system. The front axle suspension strut is attached to the body with a triple-path head baring. With this system, the static carrying forces are transmitted directly to the body via a plastic shim. Large forces (e.g. when shock absorbers bottom out) are absorbed by a jounce buffer.
The function module consists of a small elastomer piston, which reduces the damping effect in the event of minor road surface excitations. This considerably improves the driving compfort and the response of the suspension in particular. For heavier road surface excitation, the full damping effect is available.
It goes on to show the diagram of the strut assembly, showing the components. We'll see what the dealership says.
Last edited by TennesseeZ4; Sep 29, 2020 at 11:55 AM. Reason: additional information
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From: San Diego, CA
2024 EQE 500
Let us know what they say. My 2018 E Coupe has had a vibration of sorts when hitting rough road at speed, particularly in one specific are where I drive. Happens every time. It feels like a light vibration or spring rebound in the steering wheel. Dealer could not reproduce/fix.
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