Changing Serpentine Belt DIY - MBWorld.org Forums

Mar 31, 2008 | 09:19 AM

david_d23

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Joined: Nov 2007

Posts: 87

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2004 E55

Changing Serpentine Belt DIY

Does anyone have a DIY guide to changing the serpentine belt? Also, does anyone know at what interval this belt should be changed?

Thanks in advance to all who reply!

Apr 1, 2008 | 12:01 AM

jangy

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Joined: Sep 2004

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From: San Diego

2015 S212

I don't know the interval, but i assume you are talking about the accessory belt and not the SC belt.

The Accessory belt has a pulley that you simply pull and tighten (old school style). The SC belt has a tensioner that simply loosens and releases the belt. You will need a 17mm for the SC one (I dunno the fraction one that works).

Apr 1, 2008 | 04:09 AM

waxking1

Senior Member

Joined: Sep 2006

Posts: 373

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CL65

Quote:

Originally Posted by jangy

The Accessory belt has a pulley that you simply pull and tighten (old school style). The SC belt has a tensioner that simply loosens and releases the belt. You will need a 17mm for the SC one (I dunno the fraction one that works).

You sure about that? On mine(2005) both belts were tensioned by similar spring loaded tensioners.
I know it was a lot harder to find than the supercharger tensioner. BrianS sent me a picture with the two tensioner bolts(not really bolts but bolt heads) circled. I still had trouble finding the one for the serpentine belt, but it is there. Both take a 12pt 17mm.

Edit: I found the picture in my user cp

Last edited by waxking1; Apr 1, 2008 at 04:16 AM.

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