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

The little Liftgate pump that couldn’t?

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Old 02-08-2022, 11:39 PM
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Make sure check pump part# for your car. Most pumps look the same, but may have different fittings or connectors.
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Old 02-10-2022, 04:05 PM
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2001 S500 (W220) / 2007 GL450 (X164)
Originally Posted by EmilyMB

#1 i think hydraulic piston to absorb movement ( up and down)
#2is hydraulic shock to pull up and down rear door #3 is positioned sensor ( adjust the height)
I hear 2 & 3 are behind the liner and a pain to change.
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Old 02-10-2022, 04:10 PM
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2001 S500 (W220) / 2007 GL450 (X164)
Originally Posted by EmilyMB
Make sure check pump part# for your car. Most pumps look the same, but may have different fittings or connectors.
that's a good point...I think I have changed the pump once already...maybe it was the wrong one lol
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Old 02-10-2022, 06:44 PM
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2001 S500 (W220) / 2007 GL450 (X164)
Originally Posted by Max Blast
Put a folded shop towel on the subwoofer.
any leaks from the piston hidden behind the ceiling liner will usually puddle there.
just checked and there was nothing on the paper towel on or around the sub speaker.
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Old 05-16-2022, 09:40 PM
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i got a new pump from the junk yard and it doesn't work...I realized that the reservoir on my pump keeps coming off and that is where the fluid is leaking. The crimp ring is no good. Is there some type of sealant I can put on the reservoir and the hydralic rings to make sure they don't leak?
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Old 05-16-2022, 10:08 PM
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Originally Posted by Mikchek
i got a new pump from the junk yard and it doesn't work...I realized that the reservoir on my pump keeps coming off and that is where the fluid is leaking. The crimp ring is no good. Is there some type of sealant I can put on the reservoir and the hydralic rings to make sure they don't leak?

this stainless steel clamp may help.


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Old 05-16-2022, 10:14 PM
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2001 S500 (W220) / 2007 GL450 (X164)
Originally Posted by EmilyMB

this stainless steel clamp may help.
thanks…last time I looked for a clamp I couldn’t find one the right size
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