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

Mercedes GL450, 2007 air compressor repair

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Old 08-06-2013, 03:40 PM
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Mercedes Benz, BMW
Mercedes GL450, 2007 air compressor repair

I am wondering if it is possible to fix air compressor that failed. I replaced mine to new one but looking at the compressor I thought it cannot be complex part. Did anyone tried to repair it? Any success? Thank you in advance.
Old 08-12-2013, 10:44 AM
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2008 GL 320 CDI
Arnott has really good prices and install videos! See link, I just bought front shocks.
https://www.arnottindustries.com/sea...el=69&year=146
Old 08-12-2013, 11:20 AM
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Originally Posted by hmillham
Arnott has really good prices and install videos! See link, I just bought front shocks.
https://www.arnottindustries.com/sea...el=69&year=146
Thank you for the link. I knew about them and actually bought shocks from them. However, I am looking for the DIY to rebuild air compressor because it seems to me that I just need to replace the worn part in there but the electric motor itself should be good. I just need to figure out who makes these parts.
Old 08-12-2013, 03:26 PM
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Originally Posted by vladc77
Thank you for the link. I knew about them and actually bought shocks from them. However, I am looking for the DIY to rebuild air compressor because it seems to me that I just need to replace the worn part in there but the electric motor itself should be good. I just need to figure out who makes these parts.
mb is usually very coy about suppliers. you need to look for tell tale signs on the parts - markings/ serial numbers and hope you get a google hit.

i am sure the broken compressor can be repaired for almost nothing if you know who the supplier is.
Old 08-12-2013, 03:54 PM
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Thank you Alx. I'll look into it.
Old 08-13-2013, 10:38 AM
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1996 E320, 2010 GL450
Originally Posted by vladc77
I am wondering if it is possible to fix air compressor that failed. I replaced mine to new one but looking at the compressor I thought it cannot be complex part. Did anyone tried to repair it? Any success? Thank you in advance.
I tried. I had a hairline fracture in the plastic casing and epoxied it, sealed it, and re-enforced it with external wrap and hose clamps to keep the plastic from expanding, cracking again. It lasted my 2 week trip to Chicago, but as soon as I got back, it cracked again. I don't know if the plastic on the pump I had was just bad material or what, but I worked out a free replacement from MB since the car was only just over 3 years old.

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