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

Is it time to sell?

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Old Nov 29, 2023 | 11:40 PM
  #1  
FlyGuy80's Avatar
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GL350
Is it time to sell?

The electrical gremlins keep coming back. The latest is ABS, Traction Control and Check Engine lights popping up. Changed the wheel speed sensor which was one of the codes, but it’s wont’ clear. I took it to an independent mechanic that specializes in Mercedes for further diagnosis. He can’t get codes to clear and says that a ton show up and his view is that the ECM is probably bad and that I’ll need to take it to the dealer to fix. I fear this will be a costly repair.

Any thoughts or recommendations?

2014 GL350
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Old Nov 30, 2023 | 12:26 AM
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rapidoxidation's Avatar
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From: In the Shadow of the Tetons
2013 ML350 Bluetec
I'll be the first to say it:
Check your batteries.
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Old Nov 30, 2023 | 12:34 AM
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Thanks - could be but I changed the battery less than a year ago
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Old Nov 30, 2023 | 11:29 AM
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Yeffsy's Avatar
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2015 GL350 Bluetec
Did you change both batteries? There is the main battery under the front passenger seat and there is an axillary battery in the back, passenger side, next to the spare. You have to take a few panels off to get to it.

Jeff
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Old Dec 4, 2023 | 07:24 PM
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From: Ottawa, Ontario
2013 ML350 Bluetec, 1966 Ford Mustang Convertible (sold)
Same thing happened to my 2013 ML350 Bluetec. Turned out to be the wheel bearing that was so rusted out that the magnetic strip inside of it was gone so the abs sensor couldn't work anymore. I had a CEL, ABS lights and the cruise control stopped working. Changing the wheel bearing fixed it all.
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Old Dec 6, 2023 | 09:54 PM
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Issue resolved. Turned out that the wiring was broken / eaten into. Replaced that and we are all good.
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Old Dec 20, 2024 | 01:27 AM
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3x X166's
in what area was the wiring broken?
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Old Dec 23, 2024 | 08:44 AM
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From: Phoenix
2015 GL350
[QUOTE=FlyGuy80;8884977]The electrical gremlins keep coming back. The latest is ABS, Traction Control and Check Engine lights popping up. Changed the wheel speed sensor which was one of the codes, but it’s wont’ clear. I took it to an independent mechanic that specializes in Mercedes for further diagnosis. He can’t get codes to clear and says that a ton show up and his view is that the ECM is probably bad and that I’ll need to take it to the dealer to fix. I fear this will be a costly repair.

Any thoughts or recommendations?

2014 GL350[/QUOTE

To sell or not is a personal evaluation that you should consider once you know the problem and the cost to fix it. Take it to someone capable of diagnosing the problem and providing an estimate for repairs. Then, make your decision.
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