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

2015 GL550

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Old Feb 14, 2024 | 05:02 PM
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ken nikki's Avatar
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2015 GL550
2015 GL550

My wife left the sunroof open on our gl550, approximately one day later "after wet vacuuming the carpet of course", I get no power to the dash at all. It's like there's no battery inside only the battery is reading 12.5 volts. Any suggestions for me on what's next? Oh, and why is it that when I try and research info on the gl550, the only gl's that pull up are the 350 and 450???

Last edited by ken nikki; Feb 14, 2024 at 05:07 PM.
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Old Feb 14, 2024 | 05:46 PM
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bone stock E55 AMG
moved to X166 forum...
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Old Feb 14, 2024 | 08:50 PM
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E55, GLS450, GL63, GLE350
Call insurance if you have comprehensive coverage. Let them deal with it as it is flooded.
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Old Feb 14, 2024 | 10:17 PM
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2015 GL550
I think thats gonna be my best bet.
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Old Feb 18, 2024 | 07:43 PM
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W212 MY'14 M276-3.5NA @75kMi
soaked through open sunroof ....

Originally Posted by ken nikki
My wife left the sunroof open on our gl550, approximately one day later "after wet vacuuming the carpet of course", I get no power to the dash at all. It's like there's no battery inside only the battery is reading 12.5 volts. Any suggestions for me on what's next? Oh, and why is it that when I try and research info on the gl550, the only gl's that pull up are the 350 and 450???
You can try to scan the chassis to see if any helpful faults are reported.

Water is a serious enemy of unprotected electronics.... I can already volunteer your front door switch modules will need to get swap along with watever is located in central console between seats.

Luckily OEM parts are really cheap, used ones as well.

You just need to work out what is wrong.

Front footwell soaked area is where the VIP GND are located. These feed #1:ECU and #2:SAM ... they usually come painted from factory and now oxidized.

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Old Feb 20, 2024 | 09:13 PM
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2015 GL550
Great advice

Originally Posted by CaliBenzDriver
You can try to scan the chassis to see if any helpful faults are reported.

Water is a serious enemy of unprotected electronics.... I can already volunteer your front door switch modules will need to get swap along with watever is located in central console between seats.

Luckily OEM parts are really cheap, used ones as well.

You just need to work out what is wrong.

Front footwell soaked area is where the VIP GND are located. These feed #1:ECU and #2:SAM ... they usually come painted from factory and now oxidized.
This was great advice…I’ll start this weekend taking the the interior out. Insurance wouldn’t cover it lol. Go figure
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Old Feb 21, 2024 | 07:42 AM
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If you have comprehensive insurance, they absolutely should cover.
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Old Feb 21, 2024 | 11:05 AM
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If you have an umbrella policy with vehicles under it then doubly do. Worth a call to the agent perhaps.
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