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‘16 Mercedes GLE450 amg,’15 Mercedes gla, coupe,’07 Mercedes w221,’12 Audi A
Idler tensioner pulley
Well I just had my idler tensioner pulley bearing fail on my S550 and was looking at replacing the whole assembly and noticed that some aftermarket well known brands show the pulley have grooves on the pulley and then oem being smooth. Does it make a difference?
‘16 Mercedes GLE450 amg,’15 Mercedes gla, coupe,’07 Mercedes w221,’12 Audi A
Lol I have noticed but the design make a difference? Groove or smooth? I didn’t go with oem when I first replaced it and went with gates but they seemed to not last a long time.
QUOTE=BOTUS;8695829]the stock one is made of chocolate with a 20k life.....[/QUOTE]
They are probably using a generic photo in error. Grooved and smooth pulleys are NOT interchangeable. If the grooved side of the belt contacts the pulley, it has to be grooved. If the smooth side of the belt contacts the pulley, the pulley cannot be grooved.
‘16 Mercedes GLE450 amg,’15 Mercedes gla, coupe,’07 Mercedes w221,’12 Audi A
Can I just change the pulley? Apparently my mechanic replaced this pulley with a non oem one. I have ordered a gates pulley assembly and also just a gates pulley.
its the bearing you need to replace (usually sold as a pulley with bearing pre-fitted) - of course you can just change this, its the only bit designed to wear out as fast as it does
‘16 Mercedes GLE450 amg,’15 Mercedes gla, coupe,’07 Mercedes w221,’12 Audi A
Botus,
Awesome information thank you very much. I actually sourced a brand new gates idler belt tensioner pulley locally for $25. So I am going to swap it out as my car has be out of commission since Jan 1st.
Can I just change the pulley? Apparently my mechanic replaced this pulley with a non oem one. I have ordered a gates pulley assembly and also just a gates pulley.
Just change everything involved with Gates stuff...parts are pocket change compared to what most parts cost on our cars.
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