S320 2006 W221 Serpentine Belt Change

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andyg0141

Member
Joined
Jun 22, 2007
Messages
36
Location
Aberdeen
Car
S320 CDI (W221)
Hi,

The serpentine belt on my 2006 S320 is loking pretty cracked so I plan to change it. There seems to be a fair bit in the way and I am wondering what I need to remove to access it.

Does anyone have a guide or can give me some pointers?

Thanks, Andy
 
On my E320, I removed the radiator fan assembly which came out fairly easily and then had plenty of room to remove and refit the belt.
 
Above car has a different engine.

You will need to remove the silver metal boost hose, the black box it attaches to will also need to come off, then your fighting around trying to get the belt off whilst holding the tensioner on tension, then it's a bit of a battle to get it back on, make a drawing of the route the belt takes before you take it off.
 

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