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7 Series - E38 (1995 - 2001)

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  #1  
Old 08-12-2012, 11:31 AM
wes1971 wes1971 is offline
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Location: PA
 
Join Date: Aug 2012
Posts: 1
Mein Auto: 95 740 il
95 740iL - Need Help with Serpentine Belt Tension?

I am new to this site and just purchased a 1995 740 IL. The serpentine belt was loose and trying to tighten it but it doesn't stay tightened. Any help would be appreciated. I have never worked on a configuration like this one. Thanks
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  #2  
Old 08-13-2012, 03:05 AM
BMWFatherFigure's Avatar
BMWFatherFigure BMWFatherFigure is offline
Old School
Location: Perth, Western Australia
 
Join Date: Aug 2012
Posts: 2,749
Mein Auto: E23;E30;E38;E32;E34 +
OK - bit out my depth here. Isn't the belt kept in tension by a spring loaded idler? If the belt is put on wrong it will not hold tension. Based on my M40 engine games.........

Last edited by BMWFatherFigure; 08-13-2012 at 03:06 AM. Reason: correct typo
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Old 08-15-2012, 12:37 AM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 22,084
Mein Auto: 02 BMW 525i M54 auto 130K
From the E39 bestlinks, I'd suggest the OP read 'the answer to the question of adjusting the 540i hydraulic tensioners' belt tension' below since you have the same engine on the E38 ...

More details here ...
- How to tell if you have mechanical or hydraulic belt tensioners (1) & how to switch from mechanical to hydraulic (1) and what is the difference between the two types (1) (2) & how to rebuild your hydraulic tensioners (1) & how to re-grease your pulleys and rollers (1) & the answer to the question of adjusting the 540i hydraulic tensioners' belt tension (1) (2)

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Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need

Last edited by bluebee; 08-15-2012 at 12:40 AM.
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