E-Class (W211) 2003-2009

Torx adjustment...

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Old Dec 26, 2019 | 06:36 PM
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David Wassel's Avatar
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2007 e 350
Torx adjustment...

I'm no expert ( that’s why I’m on here hoping one you y’all can shed some light) but I know my way around cars fairly well and will avoid a MB dealership until it’s a last resort. This is the 1st MB I’ve owned , 07 e350 4 mattic...160k on it...here we go!

I’ve been having constant problems shredding serpentine belts...I’ve changed out all but 2 pulleys thinking that would solve my problems. The engine gets hot quick, coolant reservoir remains full. Power steering pump now sounds like it’s about to go, reservoir also full,& barely dropping. Is there any chance I need to reset the pulleys or could my problems be the torx are too tight/too loose on one or more pulleys causing the pumps to not properly run? Is this something I’d be able to do myself or does it require special tools? Any info would be greatly appreciated thanks y’all!
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Old Dec 26, 2019 | 06:59 PM
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Try to take straight ruler and put it against each pulley, observing if it is parallel to the belt in all directions.



Last edited by kajtek1; Dec 26, 2019 at 07:01 PM.
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Old Dec 27, 2019 | 01:00 PM
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2008 E350 4Matic, 2011 E350 4matic
Originally Posted by David Wassel
I'm no expert ( that’s why I’m on here hoping one you y’all can shed some light) but I know my way around cars fairly well and will avoid a MB dealership until it’s a last resort. This is the 1st MB I’ve owned , 07 e350 4 mattic...160k on it...here we go!

I’ve been having constant problems shredding serpentine belts...I’ve changed out all but 2 pulleys thinking that would solve my problems. The engine gets hot quick, coolant reservoir remains full. Power steering pump now sounds like it’s about to go, reservoir also full,& barely dropping. Is there any chance I need to reset the pulleys or could my problems be the torx are too tight/too loose on one or more pulleys causing the pumps to not properly run? Is this something I’d be able to do myself or does it require special tools? Any info would be greatly appreciated thanks y’all!
Which pulleys did you change out? On one of them there's a washer behind the pulley, hope you didn't leave that out. Tensioner also goes bad but you didn't mention if you changed that also.
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