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

GL Service Flex-Disk and Belt

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Old 08-01-2013, 03:23 PM
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2007 W211 E350 4Matic / 2008 X164 GL320 CDI
GL Service Flex-Disk and Belt

Wondering if these are really bad enough to replace.

Also, how hard is it to do the Flex-Disk and the serpentine belt?
Attached Thumbnails GL Service Flex-Disk and Belt-gl-belt.jpg   GL Service Flex-Disk and Belt-gl-flex3.jpg  

Last edited by N_Jay; 08-01-2013 at 03:28 PM.
Old 08-04-2013, 09:14 PM
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2021 V167
I would change em myself..

the belt looks ready to go...

flex disk looks fine, not a difficult change but you need new bolts and torque properly.

Out of curiosity how much were you quoted to repair?
Old 08-05-2013, 08:02 AM
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Actually, I went to check, and the belt was done (Guess I forgot I gave the dealer the OK to go ahead.)

I think the flex-disk was somewhere between $250 and $300.
I have it on order for $102 and will do it myself. (It looks like it comes with bolts)
(OK, all the ones for $125 and up come with bolts and the one for $102 had the same part number but no picture)

Yes, the disk did not look bad, but it is over 5 year old and had 100k miles, and we tow a little, so I figured it was cheap enough to check off the list.
Old 08-05-2013, 09:45 PM
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2007 W211 E350 4Matic / 2008 X164 GL320 CDI
Anyone know what the torque spec is on the flex disk bolts?

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