Squealing
Super Member
Joined: Sep 2009
Posts: 941
Likes: 74
From: Orlando FL
a unicorn tuned p30 e63
99% sure it's the idler pulley, I have went through two oem
ones and the asp pulley is much better. you can purchase just the idler it's 150 a pop or like 325 for the set of three. it's not on thier site so you have to call them
ones and the asp pulley is much better. you can purchase just the idler it's 150 a pop or like 325 for the set of three. it's not on thier site so you have to call them
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From: BC
Haters crazy
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Joined: Oct 2009
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From: San Diego, CA
'13 GT-R AMS Alpha 9+, CLA45, E55
Idler pulley bro. Call James or Peter @ ACG and get yourself a full set of ASP Goodness. Took care of all the squeaks my 55k was having and they look incredible.
You can always just change out the bearing too if you have a press handy. They are like $5 on ebay.
https://mbworld.org/forums/w211-amg/...ng-repair.html
You can always just change out the bearing too if you have a press handy. They are like $5 on ebay.
https://mbworld.org/forums/w211-amg/...ng-repair.html
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From: BC
Haters crazy
So I took the SC belt off today and the squealing is still there. Still cant seem to pin point where the fawk the noise coming from. The 3 asp pullies, will fix this 100%?
Super Member
Joined: Mar 2009
Posts: 937
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From: Alpharetta Georgia
2006 E55, 2006 saab 93 aero, 2010 glk 4m
If the SC belt is off and you still here it then that eliminates 2 asp pulleys (tensioner and front idler pulleys) which are on that circuit so it leaves the rear idler pulley. I say do the screw driver test on that 3rd combo pulley. Serpentine belt is good though right? From Vazha's photo with the arrows, the pulley I'm talking about would be the one closer to the engine. If the sound isn't from that one then the ASP pulley kit is not your solution to this problem.
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Thread Starter
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Joined: Sep 2008
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From: BC
Haters crazy
If the SC belt is off and you still here it then that eliminates 2 asp pulleys (tensioner and front idler pulleys) which are on that circuit so it leaves the rear idler pulley. I say do the screw driver test on that 3rd combo pulley. Serpentine belt is good though right? From Vazha's photo with the arrows, the pulley I'm talking about would be the one closer to the engine. If the sound isn't from that one then the ASP pulley kit is not your solution to this problem.
Where is the water pump pulley, did you fix the issue?
Member
Joined: Oct 2008
Posts: 147
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From: North Carolina
2005 E55 AMG
front bottom right hand side of the motor.
It's one of the first signs that the water pump is wearing, but because I don't have any leaking or wobble I just live with the squeal.
At least it may point you in the right direction, if it's not the pullies.
It's one of the first signs that the water pump is wearing, but because I don't have any leaking or wobble I just live with the squeal.
At least it may point you in the right direction, if it's not the pullies.
Thread Starter
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From: BC
Haters crazy
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Joined: Oct 2007
Posts: 340
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From: Illinois
cls55
I'm serious 
I thought for sure I had a bad idler pulley, replaced the bearing and everything. Then I figured I had some other pulley that was bad. I had the car at MB for something else and asked them to take a look and they said it was my belt and they would change it for like $350 haha. So I said no, took the car home and got some wd40 and gave it a little squirt on the belt and the squeak disappeared.. So I replaced the belt myself and it never came back 
I thought for sure I had a bad idler pulley, replaced the bearing and everything. Then I figured I had some other pulley that was bad. I had the car at MB for something else and asked them to take a look and they said it was my belt and they would change it for like $350 haha. So I said no, took the car home and got some wd40 and gave it a little squirt on the belt and the squeak disappeared.. So I replaced the belt myself and it never came back
