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E320 Bluetec Thermostat Replacement

6K views 6 replies 3 participants last post by  STPilots5150 
#1 ·
I'm about to replace the thermostat, and thought I'd look at WIS and the part itself before I started. Does anyone know how to remove the coolant hose from the thermostat? WIS only says to "remove coolant hose". On this car it's not like a traditional car where the hose is held on by an external clamp. The hose is literally inside the thermostat housing, not around it. I see a clip going around the housing, but it does not look like that would hold in the hose. Does anyone have experience with this?
 
#2 ·
If it's anything like the intercooler rubber hose, that clip holds the hose in place.
The end of the hose for the intercooler hose has a built in metal adapter, which plugs into the intake manifold, and secured on with a C clip.

I don't know specifically for the hose you're talking about.
 
#6 ·
Yes,just pull the U shaped wire clip and then pull the coupler off.

They can be tight to pull off but they do just pull off. Try some lubricant around the connection.
 
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