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

Second Benz now having problems

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Old 11-30-2023, 05:20 AM
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2014 Mercedes GL 550
Question Second Benz now having problems

What's up everyone! I'm a mid level DIY'er and I'm here looking for help on a few things.

Airmatic compressor died so I replaced it. It no longer raised and was so loud and broken sounding I had to pull the fuse on it. Super easy to replace and everything worked great again for 1 week then right back to all 4 corners all the way down. I neglected to change out the relay when replacing the compressor. Now vehicle says malfunction before my seat belt alert stops dinging. Could this just be a relay? Picking up one from the stealership if need be. Thoughts?

Last edited by PennyPusher; 11-30-2023 at 05:26 AM. Reason: Needed more info
Old 11-30-2023, 07:32 PM
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bone stock E55 AMG
moved to X166 forum...
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Old 12-02-2023, 04:49 PM
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2014 GL450, 1992 W140 300SD, 1993 W140 300SE, 1987 E30 Convertible
Original or chinese copycat? Could be bad quality compressor
Old 12-02-2023, 06:50 PM
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2014 Mercedes GL 550
Bought this one - https://www.rockauto.com/en/moreinfo...=12719&jsn=590
Old 12-04-2023, 07:05 PM
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2014 GL450, 1992 W140 300SD, 1993 W140 300SE, 1987 E30 Convertible
That is Chinese copycat. They don't last as original and some of them don't last long. Check on the warranty with seller

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