Mercedes M273 M272 Idler Pulleys Tensioner Pulley and Serpentine Belt Replacement.

[@ahmadalgarni2854]

Wonderful video full of details, sizes & types of openers. Please share the part number that you use to buy the pulley of tensioner because it comes one set as an oem. Awaiting your valuable feedback.

[@diymadness8668]

Thanks for you appreciation. Tensioner pulley was made in Taiwan so no part number otherwise definitely i share in this video.

[@WilliamTang-nx6ph]

Hi！Thanks for your share!Could you tell me what did you put on the screw?

[@diymadness8668]

@@WilliamTang-nx6ph Thread locker

[@WilliamTang-nx6ph]

@@diymadness8668 Thank you very much！

[@slimsherman5818]

I have a 2002 e320 and need to replace the tensioner pulley and i notice it has a little groove in the middle like the second pulley you replaced, but when i look at replacement parts the pulley is smooth. My question to you is that normal to replace a pulley with a groove in it with one that is smooth, any feedback would be appreciated. Thanks for posting

[@diymadness8668]

Grove is to just avoid it from spinning over bolt. If you get smooth one just apply thread locker before tightening bolt.

[@slimsherman5818]

@@diymadness8668 Will do, thank you for the quick response....very informative video 👍👍👍

[@slimsherman5818]

I went to take the old pulley off with a torx 47 which should work except the bolt has a tiny nipple on it, preventing it from working what type socket should I use do you know, thanks again

[@diymadness8668]

@@slimsherman5818 without taking a look it is difficult to answer.