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W211 AMG Discuss the W211 AMG's such as the E55 and the E63

How to remove this big black pulley?

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Old Mar 6, 2017 | 02:50 AM
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CLS55
How to remove this big black pulley?

What is the big black pulley on serpentine belt between sc/serp belt double idler and crank pulley and how do I remove it? I think I dropped a torx bit behind it when replacing my sc tensioner assembly. Could I just turn it on and hope it falls out instead?
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Old Mar 6, 2017 | 03:06 AM
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CLK56TT (WIP), S65, RR 5.0 S/C
The one with 4 bolts? If yes, it's the water pump. Drop the belt, undo 4 bolts, it pulls right out.
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Old Mar 6, 2017 | 03:11 AM
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Yeah thats the one thanks!! Ill get that done tomorrow morning, the serpentine belt tensioner sure is a ***** to get to with belt wrap kit installed
Any idea on torque specs for the bolts?
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Old Mar 6, 2017 | 03:35 AM
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CLK56TT (WIP), S65, RR 5.0 S/C
10 Nm
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Old Mar 6, 2017 | 09:01 AM
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Magnet first ?
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Old Mar 6, 2017 | 03:12 PM
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2004 E55
Originally Posted by Alex L
The one with 4 bolts? If yes, it's the water pump. Drop the belt, undo 4 bolts, it pulls right out.
I would recommend breaking loose the 4x 10mm bolts first while the belts are holding the WP pulley in place then dropping the belts... it will keep you from holding the pulley with one hand and straining yourself

I found that out while doing my crank pulley upgrade :-/

***Props on a shiny motor by the way***
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