W204 C300 idler pulley replacement

[@freddannheim1326]

What fixed it? Having this issue right now on my 2011 C300. I replaced the top grooved idler pulley same as you but still squeaking. I have a new pulley (smooth) and tensioner on the way. Hoping it’s just the smooth idler pulley.

[@majdyoboi2500]

Hey I got a question do the regular c300 bumper fit on the luxury version 2009 like the black you had in your old videos I am asking because am buying one am I want to switch the bumper ?

[@Brinrex]

Yes it should just fit

[@kennethmay6343]

So is this the Duralast Idler Pulley? Is it the same thing as serpentine belt tensioner pulley?

[@drazamihailovic2746]

i think its altenator pulley, if you have low voltage dimmed lights that might be it

[@Brinrex]

I don’t have low lights I believe to be something else

[@hannahyoungblood1805]

😂😂it still squeaks!

[@Brinrex]

Ik I need to fix it