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-   -   M104 serpentine belt replacement (http://www.peachparts.com/shopforum/tech-help/233982-m104-serpentine-belt-replacement.html)

Boston Benz 09-27-2008 11:20 PM

M104 serpentine belt replacement
 
RE: my 1995 E320... The WIS says to loosen the tensioner screw which is beside the p/s reservoir etc. My model 104 engine doesn't have any adjusting screw nor pointer etc. of any kind. How do you remove the belt? Where do you slacken the tension? The WIS sketch clearly shows the device between the p/s reservoir and water pump.

PaulSpringmann 09-27-2008 11:41 PM

You've probably got a new style tensioner as I do on my '95 wagon. The tensioner is just spring loaded; you just put a wrench on the front of it (I think 15mm), pull and hold while slipping off the belt.

Boston Benz 09-28-2008 12:39 AM

Great! I just figured it out, you're right. I guess MB finally improved the belt tensioners over the M103 engine ones they were using...

Arthur Dalton 09-28-2008 01:52 AM

That was a 104 eng. production change and was in late '95. Any engine after serial # 12-672236 had the new tensioner modification. All earlier Serial numbered 104/HFM engines [ 93-95] had the pointer/shock set-up.

http://catalog.peachparts.com/RenderScriptTemplate.epc?_cmd=epccat_VehicleAAA&cookieID=2GN17VPXQ2H401ZD1J&yearid=1995%40%401995&ma keid=MB%40%40MB%40%40X&modelid=E%2D320%2D001%40%40E+320+Sedan&catid=G%40%40Cooling+System&mode=PA&su bcatid=G6000@@Accessory+Belt+Tensioner


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