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

Waterlogged GL

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Old 05-07-2024, 11:20 AM
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GL 350 Bluetec
Waterlogged GL

Fortunately the rains have brought our lakes and reservoirs from 60% full to 100% full in the past couple of weeks.

Unfortunately our GL seems to have taken on a bit of water of its own. We have an CEL and error “No CAN message recieved from Multifunction Camera.” Dampness in the spare tire area and standing water in the battery compartment.

Any advise for helping chase down the leak or clogged drain? Or how to get the water out?

Last edited by Panzerknacker; 05-07-2024 at 01:23 PM.
Old 05-07-2024, 01:01 PM
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2015 GL350 Bluetec
Sometimes when I open my hatch I get water that drains out of the plastic trim. I've been meaning to check into it, but I haven't yet. Can others please share their experience?

Jeff
Old 05-07-2024, 03:03 PM
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Bissel carpet cleaner worked in the battery compartment. That’s a lot of water!!!



Old 05-08-2024, 01:01 PM
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was your car not included in the water intrusion recall that affected the ML line? They put a drain plug under my spare tire. Did nothing to address the reasons for the intrusion, which are probably many.
Old 05-08-2024, 01:21 PM
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Originally Posted by rapidoxidation
was your car not included in the water intrusion recall that affected the ML line? They put a drain plug under my spare tire. Did nothing to address the reasons for the intrusion, which are probably many.
Drill and a rubber grommet can solve that. Just be careful not to pull back the drill bit smelling like fuel. 😆
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Old 05-08-2024, 09:01 PM
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E55, GLS450, GL63, GLE350
I was hoping the X166 didn't leak like my X164. I've got 3 - 166's. Let us know if you find the leak.
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Old 05-09-2024, 12:03 AM
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Did you try putting the car in a bag of dry rice?
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Old 05-10-2024, 10:25 PM
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Battery compartment full of water? That's a new one.

Check all four corners of the sliding roof trough. The holes are 4-5mm in diameter and deep in the corners. Use a bright LED flashlight to find them. Slowly pour a cup of water into each of the holes and confirm visually the water exits under the car, usually just inboard of the wheels. If any drain is clogged, use string trimmer (weed whacker) line to carefully clear the drain tube.
Old 05-12-2024, 11:15 AM
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The saga of the porous GL continued today with more heavy rain. This time I was waiting and ready to investigate. I’ll clean the sunroof drains and keep observing.

Photo is the passenger side front seat shoulder belt (B pillar taken from back seat).



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