C32 AMG, C55 AMG (W203) 2001 - 2007

idler pulley

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Old Mar 30, 2009 | 11:11 AM
  #1  
CLKCLK's Avatar
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idler pulley

My upper idler pulley (guide pulley), the plastic 8 grooves on the upper left right next to the supercharger pulley, is sometime making squeaking noise. Do any of you know where to buy a replacement beside the stealer?

Thanks,
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Old Mar 30, 2009 | 11:50 AM
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CLK

Even if you buy it from the stealer it should be around $90 if I am not mistaken.
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Old Mar 30, 2009 | 12:14 PM
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Not an AMG :(
Originally Posted by CLKCLK
My upper idler pulley (guide pulley), the plastic 8 grooves on the upper left right next to the supercharger pulley, is sometime making squeaking noise. Do any of you know where to buy a replacement beside the stealer?

Thanks,
You're referring to part # 120 200 04 70, right?

Several online stores have this pulley.

Here's one for ~$30

Here's one for ~$25

Last edited by boohooramblers; Mar 30, 2009 at 12:39 PM. Reason: Additional info
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Old Mar 30, 2009 | 12:27 PM
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Yes, thanksssss $30 is big different from $90. I save $60 for my car wax

Thanks boohooramblers!

Originally Posted by boohooramblers
You're referring to part # 120 200 04 70, right?

Several online stores have this pulley.

Here's one for ~$30
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Old Mar 30, 2009 | 12:33 PM
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aww...I was gonna say get the 185 pulley kit and be done with it!
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Old Mar 30, 2009 | 01:08 PM
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Originally Posted by loungn14
aww...I was gonna say get the 185 pulley kit and be done with it!
The new kits change-out the ribbed guide pulley? Is that for a "large CP + belt-wrap" approach?
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Old Mar 30, 2009 | 01:55 PM
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Originally Posted by c32AMG-DTM
The new kits change-out the ribbed guide pulley? Is that for a "large CP + belt-wrap" approach?
185 doesn't replace the pulley the OP was referring too.

Answer is still the same though, get the 185....plus the $30 replacement idler.lol
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Old Mar 30, 2009 | 02:03 PM
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Jake,

I am currently running 185mm pulleys. I also have an extra 19000rpm bearing, but I don't know how to replace it. Is the bearing of the plastic pulley replaceable?

Originally Posted by loungn14
aww...I was gonna say get the 185 pulley kit and be done with it!
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Old Mar 30, 2009 | 03:51 PM
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i just got the code3 belt wrap kit...swapped out the bad pulleys and got a little extra boost.
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Old Mar 30, 2009 | 09:53 PM
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Originally Posted by TemjinX2
i just got the code3 belt wrap kit...swapped out the bad pulleys and got a little extra boost.
TemjinX2- Would you kindly post a picture or three of your new setup?
Is your tensioner's 'tension range' still essentially the same?

Been experimenting with variously-sized idler and tensioner pulleys in a effort to minimize supercharger drive pulley slippage – while not overtly jeopardizing accessory bearing life – with its evosport ODPS.
Pretty sure she's still holding out.

TIA
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Old Mar 30, 2009 | 10:26 PM
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Originally Posted by splinter
TemjinX2- Would you kindly post a picture or three of your new setup?
Is your tensioner's 'tension range' still essentially the same?

Been experimenting with variously-sized idler and tensioner pulleys in a effort to minimize supercharger drive pulley slippage – while not overtly jeopardizing accessory bearing life – with its evosport ODPS.
Pretty sure she's still holding out.

TIA
hmmm i'm not sure john. i didnt really notice a change, but i think where mine would sit would be slightly different from yours since i'm running the code3 pulley.

The upper idler pulley is slightly larger then oem, but the middle idler pulley is slighty smaller then oem. Most of the slack is taken up by the new idler pulley above the alternator.

Right now i'm running the oem middle idler pulley until i get another washer for the code3 one. I'm pretty happy with the setup consider i needed replace the idle pulleys..since the upper one started sounding like a lawnmower.

I would with the belt wrap kit..it completely eliminates that initial pause you get from when you push the gas and the car starts to pull from a stop. After that i didnt really notice a difference in performance.

Here are josh's pics from the other thread. I'll try to get a better pic of the tensioner pulley tomorrow.

https://mbworld.org/forums/c32-amg-c...installed.html


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Old Mar 31, 2009 | 10:12 PM
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Thank you, Mike!!
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Old Mar 31, 2009 | 10:16 PM
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here are some pics i took today. let me know if you need a pic from a different angle john.





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