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

Airmatic-Issue: Hose + fittings for line between compressor and valve block

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Old 04-20-2022, 01:09 PM
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2008 GL550 (X164)
Airmatic-Issue: Hose + fittings for line between compressor and valve block

Hi there,
I would like to replace the hose that connects the airmatic compressor with the valve block.
There is a little leak right at the fitting of the compressor - so far not problem because it is tiny but I would rather replace it before it gets worse.
the current fitting also seems to be a bit corroded.

Where can I get those parts or at least the parts number?
I looked around for quite a while and just could not find it.

Cheers
Seppone
Old 04-20-2022, 01:24 PM
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2008 GL550 (X164)
Small correction:
The leak is near the fitting of the valve block.
So I need the parts number for
1) the air line
2) the fittings

It seems the fittings for the struts have a different size. I bought these here and they do not fit:
https://www.ebay.de/itm/352798107049
Old 04-21-2022, 08:40 AM
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'08 GL 320 CDI
I don't have a direct answer, but just in case you haven't tried this...

Have you tried simply tightening the connection? If that didn't help, try removing it and inspecting it and the hose. Also, exterior corrosion won't affect anything... I think they're brass, right? Some corrosion is actually totally fine on brass - it's how it protects itself.
Old 04-21-2022, 09:43 AM
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Not really option. Little leak is already there. and the hose is pretty short (had already been shortened when new compressor was installed).
Old 04-21-2022, 10:10 AM
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Do you mean the leak is in the actual hose/tube? From the first post, it wasn't clear. Yea, that's a different situation. I've often wondered if you couldn't get the tubing from Home Depot? Meaning, what the chances it's the same size as something like ice maker tubing? If not, I would be inclined to measure it and look at a place like Mcmaster Carr,
Old 04-21-2022, 10:24 AM
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Oh... another quick option for a leaking tube (once the size is known)... could be a short tube and a ferrule splice.
Old 04-21-2022, 01:40 PM
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Now just one GL450 with EORP.
It’s pretty standard plastic airline, and if you do a search you’ll find extension, connections and the size airline in bulk.

If you don’t have enough line available to feed up to the valve block to where you firmly can push it in and then give it a tug out to seat it then you’ll need to splice in more line - otherwise find more line in the existing system and give yourself some slack.

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