GLS Class (X166) Produced from 2016 to 2019

GL63 Severe Swaying

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Old Sep 28, 2023 | 06:22 PM
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GL63
GL63 Severe Swaying

Hey Crew,

My 2015 AMG was driving fine when this issue started to present itself. Eventually it became severe and borderline drivable. I have a mechanic scheduled for the weekend, but looking to get your thoughts to steer them. Alignment now pulls the left constantly, with medium pressure required to keep her straight. Tires are newer.

Symptoms: Car will randomly swerve to one side while 45 mph+, and will feel highly unstable bringing her back to center. Any throttle input will want to bring the nose to the right, with off throttle bring the nose back left.

Guesses: inner tie rod
active curve
wheel lugs loose
e brake malf
rear brake sticking

TIA!
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Old Sep 30, 2023 | 10:16 AM
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'17 GLS450, '14 GLK250, Grandpa's Roadster
The power on - power off changes point toward something that's moving in back and changing the torque alignment. I'd look for a failed subframe bushing or similar component.
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Old Sep 30, 2023 | 12:27 PM
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2017 GLS 550
Something has to be worn or loose. Maybe a bad balljoint?
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