GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

GL goes Haywire

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Old Apr 15, 2019 | 05:16 PM
  #1  
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2005 Mercedes C230 Kompressor, 2008 GL 320 CDI, 2008 ML320 CDI, 2016 GLE 300d AMG Night Package
GL goes Haywire

While driving the GL goes haywire. Battery light, brake light, airbag light, esp light, no power, windshield wipers turn on, radiator fan starts running on high speed, radio stops working and everything else goes nuts. This is the 5th time it has happened in a week. The car still drives with the exception of today when I pulled in to check it out and i couldnt turn the car off, and I coudnt shift, and after about 10 minutes the car turned off by itself. After that everything was fine.

Please help?
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Old Apr 15, 2019 | 08:50 PM
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From: NW corner of CONUS
2008 GL 320 CDI, 2004 VW V10 Touareg TDI
You have, of course, called the dealer and he said "bring it in and we will check it out"?
Have you carefully checked out the wiring to find out if you have rodent damage (mouse?, squirrel?)
When was the battery last changed?
What part of the country (I assume US) are you in or can I recommend a dealer in Portland, OR?
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Old Apr 15, 2019 | 09:10 PM
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2005 Mercedes C230 Kompressor, 2008 GL 320 CDI, 2008 ML320 CDI, 2016 GLE 300d AMG Night Package
Originally Posted by Fourdiesel
You have, of course, called the dealer and he said "bring it in and we will check it out"?
Have you carefully checked out the wiring to find out if you have rodent damage (mouse?, squirrel?)
When was the battery last changed?
What part of the country (I assume US) are you in or can I recommend a dealer in Portland, OR?
1. The dealer said it could be a million things and we will need hours of work to diagnose it ( of course)
2. Checked where my eyes and hands can go freely and have found nothing. Went to an indy shop and he couldnt find anything.
3. Battery was changed by the dealer back in november - both the main and the auxiliary battery.
4. I live in Mid Missouri.

Oh and there is no sound coming out of the speakers. I assume its the amp and I dont know if this is as a result of this issue. It happened 2 days ago.
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Old May 4, 2019 | 02:04 AM
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Any water by your SAM modules? Sounds like a SAM going crazy.
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Old May 4, 2019 | 10:14 AM
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2010 Mercedes GL450; 2000 Mercedes ML55 AMG; 2016 VW GLI SEL Stick!!!
+1 on sams and water intrusion.

heavy rain recently?
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Old May 4, 2019 | 11:04 AM
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2005 Mercedes C230 Kompressor, 2008 GL 320 CDI, 2008 ML320 CDI, 2016 GLE 300d AMG Night Package
Originally Posted by niL
Any water by your SAM modules? Sounds like a SAM going crazy.
Maybe. Are the Modules bundled up together? Where are they?
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Old May 4, 2019 | 12:55 PM
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2005 Mercedes C230 Kompressor, 2008 GL 320 CDI, 2008 ML320 CDI, 2016 GLE 300d AMG Night Package
Originally Posted by kombifan
+1 on sams and water intrusion.

heavy rain recently?
yes weve had a lot of rain this spring
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Old May 4, 2019 | 06:34 PM
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Originally Posted by Dinismb
Maybe. Are the Modules bundled up together? Where are they?
The rear Sam is on the passenger side trunk on the fooor behind the tail light. There is another one by the fuse panel under the hood. And I believe there is another one under the passenger seat where the battery compartment is.
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Old May 15, 2019 | 09:28 AM
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From: Barrie, On
GL320 / R350
Don't forget to look at the CGW under driver floor board. pano roof drain can back up in that area.
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Old May 15, 2019 | 01:41 PM
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2005 Mercedes C230 Kompressor, 2008 GL 320 CDI, 2008 ML320 CDI, 2016 GLE 300d AMG Night Package
Originally Posted by DansGL
Don't forget to look at the CGW under driver floor board. pano roof drain can back up in that area.
I will check. It has stopped for now. But for sure a water issue because ever since it stopped raining everything is ok.
I need to open up that area as the amp went dead.
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