Tool for serpentine belt removal - Mercedes-Benz Forum
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#1 (permalink) Old 11-28-2005, 10:59 AM
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Tool for serpentine belt removal

Hi,
What tool is used to loosen the belt tensioner? How do I hold the tensioner loose while replacing the belt? (insert a bolt?)
I would like to replace the serpentine belt in my ML since it has 85K miles (as a preventive measure).
How long do these belts typically last?
Any tips are appreciated!

Sergio
'99 ML430 85K miles
'99 E320 158.6K miles

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#2 (permalink) Old 11-28-2005, 02:21 PM
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RE: Tool for serpentine belt removal

You need a #10 torx socket. The tensioner is located just to the left of the power steering pump pulley (looking at the engine from the front of the car). If you don't have your owner's manual, make sure you remember how the belt goes back on as it really snakes around all the pulleys. I just changed mine after 82k, but frankly I don't think it needed it. I expect the factory belt is good for more than 100k given the condition of the one I removed.

If you plan on doing any work to your ML, you should buy a complete set of torx sockets as many of the fasteners on your ML are torx. I picked up a set at Sears some time ago for about $20 or so.
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#3 (permalink) Old 12-31-2006, 02:23 PM
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im trying to replace my belt today but i have no i dont know which one to loosen...if you have the procedure kindly pass it to me,and im going to change the idle pulley to,need your help..

pete03
2001 ml 320
1995 nissan 240sx se
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#4 (permalink) Old 12-31-2006, 02:31 PM
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Quote:
Originally Posted by pete03
im trying to replace my belt today but i have no i dont know which one to loosen...if you have the procedure kindly pass it to me,and im going to change the idle pulley to,need your help..

pete03
2001 ml 320
1995 nissan 240sx se
http://www.*****************/shopforu...erpentine+belt
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#5 (permalink) Old 12-31-2006, 03:00 PM
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Serpentine belts can last a long time (mine has 143k miles on it an it looks great). I would replace the tensioner at the same time as the belt.

The tensioner cover has a hole so that it can be "pinned"
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#6 (permalink) Old 12-31-2006, 04:49 PM
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do you guys have any pictures or drawing where this E10 TORX SOCKET goes and how many bolt or knot to be loosen.
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#7 (permalink) Old 12-31-2006, 05:51 PM
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the belt looks durable, but the tensioner and idler pulleys are prone to go bad.
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#8 (permalink) Old 12-31-2006, 07:18 PM
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Funny, I didn't use a torx. I just slipped the box end of the appropriate wrench over bolt, pulled down and presto! Belt off.

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#9 (permalink) Old 12-31-2006, 11:28 PM
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i used a T50 bit socket is this one of the tools to use.i loosen this one on the tensioner pulley but still the tensioner wont move.
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#10 (permalink) Old 02-27-2010, 02:12 PM
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I found an easier way. You can use a 17mm hex socket and place it on the bolt on the lower right corner of the tensioner. You also have much easier access to the tensioner from below.
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