GLS Class (X166) Produced from 2016 to 2019

3rd Row Seat Fold/Raise Fault

Old Oct 11, 2020 | 03:48 PM
  #1  
Golfather's Avatar
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From: United Kingdom
GLS350d V6 AMG Line G-Tronic
3rd Row Seat Fold/Raise Fault

Out of the blue the passenger side (that’s left side as we Brits have RHD) 3rd row seat isn’t folding. When I press the button in the trunk I hear a few clicks and a grinding noise but that’s it.

Before I knows about the manual release, I pressed the button and pushed the seat down manually. The same to raise it manually and it locks into place with both methods, but the button isn’t doing it’s job.

Any experiences of this gremlin?

Is it a faulty motor or a slipping shaft? It sounds like something is turning as well as grinding but that’s it.

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Old Oct 13, 2020 | 06:27 PM
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barsaec's Avatar
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From: San Antonio, TX
‘23 EQS 450+ 4matic
Sorry, but I haven't seen this one on our GLS. I do know that I broke a rear seat cable on the third row Toyota Sienna we had (Kids left something in the footwell). Good Luck.

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Old Sep 25, 2021 | 04:11 AM
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2021 Mercedes GLS 400d
Did you ever get a resolution to this as I'm having the identical issue?
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