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

2013 GL 450 coolant hose leak

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Old 02-04-2020, 10:52 PM
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2007 S550, 2013 GL450
2013 GL 450 coolant hose leak


The hose is circled in red
Hey guys, having a major issue here. This coolant hose cracked and I can't identify the part number. The even bigger issue is I can't figure out how I'm supposed to even get to this sucker to remove/replace it. What parts need to be removed? I don't want to have to remove more than necessary, but I know I gotta do what I gotta do. This doesn't look like it's going to be a lot of fun. Any input is GREATLY appreciated. Thanks fam!

Here's a link to a small vid of the hose, I know it's hard to see, apologies

Old 02-05-2020, 05:14 PM
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shrimp boat
That looks like the thermostat housing.
Old 02-05-2020, 06:43 PM
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2007 S550, 2013 GL450
Originally Posted by Forrest Gump 9
That looks like the thermostat housing.
It's actually just below the thermostat housing and appears to go into the engine block. The other end I can't really tell where it goes. Visibility is really limited in this area of the engine. If I could pull enough of it out of there I could get a part number on it, but the piece I was able to pull out (it broke out from being so brittle) doesn't include the part number on it.
Old 02-05-2020, 09:25 PM
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so I got a ratchet down in there and was able to take off the spot where it connects to what looks like the engine block. But I can't seem to trace where the other end of the hose goes. Any ideas?



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