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

GL320 CDI electrical issues

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Old Feb 22, 2023 | 12:57 AM
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GL320 CDI
GL320 CDI electrical issues

After being parked for a week, have following have electrical issues,indicators not working, wipers, remote locking,SRS alarm on.
Checked fuses, seem ok. could it all be sensors/ relays??seems a combination of issues,trying to work out common point. thanks for your reaponse.

Also the wipers not working.

Last edited by vamutiti; Feb 22, 2023 at 03:16 AM.
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Old Feb 22, 2023 | 02:25 AM
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NGL450 w/EORP, S550
Check for water damage in the trunk or under drivers seat.
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Old Feb 22, 2023 | 03:32 AM
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GL320 CDI
Many thanks will do so. will check for cabling and sensors.
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Old Feb 23, 2023 | 08:55 AM
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What he's referring to is an issue that plagues all of these cars... under the seat (and in the trunk) are computers. If a leak develops, the computers go haywire. That's what you're going after - not just a simple cable or sensor. Somewhere I have a picture of what's underneath my passenger's seat - I'll post it later. POSSIBLY just drying things out real good will good... possibly. (assuming this is the issue, of course).
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Old Feb 23, 2023 | 09:25 AM
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Originally Posted by DennisG01
What he's referring to is an issue that plagues all of these cars... under the seat (and in the trunk) are computers. If a leak develops, the computers go haywire. That's what you're going after - not just a simple cable or sensor. Somewhere I have a picture of what's underneath my passenger's seat - I'll post it later. POSSIBLY just drying things out real good will good... possibly. (assuming this is the issue, of course).
I wonder if it would make sense to put a water-triggered sump pump down there.

At the very least, weep holes.
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Old Feb 23, 2023 | 10:07 AM
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GL320 CDI
thanks for your post, looks like will be a busy weeekend for me.would be great if you can find the picture...
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Old Feb 23, 2023 | 12:53 PM
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Originally Posted by eric_in_sd
I wonder if it would make sense to put a water-triggered sump pump down there.

At the very least, weep holes.
A "bilge pump" (boating world. You wouldn't want the kind with separate float switch - instead an electronic one that senses the water.

Or maybe just a simple water sensing alarm would be easy solution. You can buy a battery operated one of those for about $10. I use one to let me know when the Christmas tree water reservoir is full.

I'm pretty sure there is a plug that can be removed from underneath the vehicle? If a duckbill valve was installed in the drain... maybe that would solve the issue of keeping stuff (and mice) from getting back in?

Last edited by DennisG01; Feb 23, 2023 at 12:56 PM.
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Old Feb 23, 2023 | 11:19 PM
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Passenger side, with seat removed. I've never removed the driver's side seat - I don't know what's under that side.


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