GL Class (X166) 2013-2015 after facelift became GLS (X166)

GLS450 2017 front seat rear plastic cover removal

Old Dec 7, 2023 | 04:32 PM
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GLS 450
GLS450 2017 front seat rear plastic cover removal

I just inherited my moms 2017 GLS450 and I'm determined to get it as close to new as possible. First, I hear a definite rattle in the front passenger seat. I need to remove the back plastic cover. Any tips/tricks on that? I really don't want to remove the whole seat but whatever.

THere's also a slight "poping" when turning. Sounds like maybe a strut, joint, control arm something? I'm not a car guy but I like to think I am so forgive me if I throw around incorrect terminology.

Front doors kinda make a cheap sounding noise when opening/closing. I can't describe it, it's just not luxury car sounding.

It's made in Alabama where i grew up and if your car had a rattle, the known remedy is to turn the radio up. That won't suffice here.

Any other things I definitely need to consider doing to it NOW to make it as close to new and last as long as possible?
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Old Dec 7, 2023 | 05:15 PM
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Plastic seat back panel removal has been written about many times on this site.

Two screws at the bottom come out, then pull the panel down and rearward.

Search for WIS.

Any time working on trim, expect to break fastener clips and plan ahead by buying a handful of replacement clips.
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Old Dec 8, 2023 | 09:57 AM
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Originally Posted by chassis
Plastic seat back panel removal has been written about many times on this site.

Two screws at the bottom come out, then pull the panel down and rearward.

Search for WIS.

Any time working on trim, expect to break fastener clips and plan ahead by buying a handful of replacement clips.
Thank you very much. I tried searching but didn't come up with very much. What is WIS? Also, any idea where I'd get the right replacement clips for this?
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Old Dec 10, 2023 | 07:52 PM
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I successfully removed the back panel and the wire harnesses were just loose so I secured them.

I want to update on how it's done even though it's probably been mentioned a bunch.

Unscrew the bottom screws, very easy to find and wiggle, pull down, wiggle, pull down, wiggle jerk down medium, wiggle some more, and jerk down one last time and it comes right off.

Last edited by dtximages; Dec 12, 2023 at 09:44 PM.
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