2011 Mercedes C350 belt and tensioner DIY

Mercedes belt and tensioner DIY, replacing all related hardware and items.
I have more makes and model of repairing car videos on main channel :)

[@CharbelSayde-ii7mz]

Hello sir, what are the part name at 23seconde in the video and what the problem of the sound

[@BaoNguyen-bo3zw]

What size is idler pulley bolt? 12Mm?

[@BPROAUTO95]

E torx 12

[@benmomm2397]

what are the part number/name of the 3 parts you replaced?

[@BPROAUTO95]

Drive belt, idle pulley, drive belt tensioner

[@benmomm2397]

@@BPROAUTO95 thank you so much

[@benmomm2397]

@@BPROAUTO95the 2 pulleys at 9 minutes are those the same idle pulley? Or are they different ?

[@BPROAUTO95]

@@benmomm2397 they are different, one is a smooth pulley, one is groove

[@michaeldancy990]

Thanks for mentioning to release the pin from the tensioner. I almost forgot 😮

[@jameswaugh115]

Why does my tensioner have a strut/shock on it & yours doesn't?

[@BPROAUTO95]

Is your a Porsche or a Mercedes