CL55k Belt Squeak on Cold Startup...ABC Pulley?
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MBworld Guru
Joined: May 2006
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From: Irvine
04 CL55, 05 E500S4, 15 BMW i3 REx
CL55k Belt Squeak on Cold Startup...ABC Pulley?
Do you guys think it' just the serpentine belt or could it be the ABC pulley as well? I've attached a youtube vid of what it sounds like (listen about 20 seconds in).
It only squeaks on a cold startup. Once the car is fully warmed up it goes away. I recently had a coolant issue, and believe some coolant may have gotten on the belt. The sound only appears to be coming from the ABC area.
Thanks in advance!
http://www.youtube.com/watch?v=AyWxAa4jbaI
It only squeaks on a cold startup. Once the car is fully warmed up it goes away. I recently had a coolant issue, and believe some coolant may have gotten on the belt. The sound only appears to be coming from the ABC area.
Thanks in advance!
http://www.youtube.com/watch?v=AyWxAa4jbaI
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Joined: Nov 2001
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From: Southern California, USA
2003 CL55 AMG
I had this same issue and lived with it for several months. I told a friend whom is a MB Tech and he recommended taking a wire brush and "De-glazing" the back side of the belt and all smooth pulleys.
Once I did this, carefully with the engine running, the sound went away.
Might be worth trying and seeing if this fixes your sounds.
Once I did this, carefully with the engine running, the sound went away.
Might be worth trying and seeing if this fixes your sounds.
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From: Wyckoff, New Jersey & Alphabet City NYC
86 190E 2.3-16v, 92 500E, 03 CL55 AMG, 08 E3504M Brabus
I had this same issue and lived with it for several months. I told a friend whom is a MB Tech and he recommended taking a wire brush and "De-glazing" the back side of the belt and all smooth pulleys.
Once I did this, carefully with the engine running, the sound went away.
Might be worth trying and seeing if this fixes your sounds.
Once I did this, carefully with the engine running, the sound went away.
Might be worth trying and seeing if this fixes your sounds.
Member
Joined: May 2010
Posts: 112
Likes: 1
From: medina ,ohio
05,cl65;33ford3wc.
Hi, alternator may be charging more at start up, but i think you have other issues. Any antifreeze or other contaiments on the belt can enhanse slip. A new belt is a good first gess.
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Thread Starter
MBworld Guru
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From: Irvine
04 CL55, 05 E500S4, 15 BMW i3 REx
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From: Toronto
V12TT
Had the same noise. I lost count whether if it was the SC idler pulley, or main idler, tensioner or the ABC pulley. BTW the ABC pulley is replaceable and there is a separate part number. Some noises go away when it's fully warmed up but some noises stay but I think it's the main S/C clutch making the sound now. Oh well.
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From: Toronto
V12TT
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From: Gulf Coast but not Florida
GLK350, SL63 AMG
Keep the old parts and throw them in a box of spares in the trunk.
Thread Starter
MBworld Guru
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From: Irvine
04 CL55, 05 E500S4, 15 BMW i3 REx
Not yet! My tech had time to do other maintenance work for me, but we have not gotten to the belt yet. Hopefully within the next week or two I can finally get this done!
Senior Member
Joined: Dec 2002
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From: Guelph, Ont. CA.
2014 ML350 BlueTec.
Hello...........
Though I do not own the same vehicle............ I had the same squeak on my 2011 ML550, It was only on start-up and it went away after 3-4 minutes..I brought in the vehicle last week and it was the V-Belt....They applied belt dressing and the squeak is gone..Part# 000-989-84-51 SILC/BELT PASTE. I hope that helps....
