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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series / 8 Series > 7 Series - E65 / E66 (2002 - 2008)

7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

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  #1  
Old 12-13-2015, 07:57 PM
scrh1 scrh1 is offline
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Location: NC/FL
 
Join Date: Dec 2004
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Mein Auto: 2008 750i
2008 e65 750i a/c compressor belt assistance...

Per the title...I undertook a project with the car this weekend replacing the water pump, thermostat, all radiator hoses and coolant reservoir as well as replacing the serpentine, pulleys etc. I purchased the BMW belt tool ( wubsetitute version on Amazon ) and for the life of me I am stuck in getting this belt on. I am pretty much at wits end and contemplatong driving it with the ac compressor belt off to my local Indy to have it installed. Any tips/ suggestions on how to get that belt on? The tool I purchased is this one ...

CTA BMW belt tool. ....is this thing just wrong? I followed the TIS / found all the threads here and I still can't get it to slip on.....I'm pretty mechanically inclined and have never been stumped like this before ..any assistance is appreciated. I'm in the raleigh nc area if anyone can assist before I take it to the Indy.


http://www.amazon.com/gp/product/B00...ilpage_o00_s00
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  #2  
Old 12-13-2015, 08:48 PM
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markbimmer markbimmer is offline
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Mein Auto: 2006 BMW 750li
I had a horrible time getting the ac belt on. I think i spent a good hr and a half. Just keep at it, I used the blue bmw one but I don't think it makes any difference. If I recall correctly the diye65e66 channel on YouTube goes over this topic on one of his videos, I do know the time it did go in I had started with the tool at the 10 o'clock position and turned it clockwise while i had a buddy making sure the belt was lining up correctly on the bottom
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  #3  
Old 12-13-2015, 08:50 PM
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markbimmer markbimmer is offline
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I also celebrated for the rest of that hour, haven't felt nothing like it...
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  #4  
Old 12-14-2015, 07:20 AM
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A B Able Truck A B Able Truck is offline
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A better way?

http://www.bimmerfest.com/forums/sho...292&highlight=

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  #5  
Old 12-14-2015, 08:52 AM
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markbimmer markbimmer is offline
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Sounds a tad better, if you're going to do it yourself it is going to take a bit of strength and frustration but hey it's not impossible
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  #6  
Old 12-14-2015, 11:16 AM
scrh1 scrh1 is offline
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Location: NC/FL
 
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Quote:
Originally Posted by markbimmer View Post
I had a horrible time getting the ac belt on. I think i spent a good hr and a half. Just keep at it, I used the blue bmw one but I don't think it makes any difference. If I recall correctly the diye65e66 channel on YouTube goes over this topic on one of his videos, I do know the time it did go in I had started with the tool at the 10 o'clock position and turned it clockwise while i had a buddy making sure the belt was lining up correctly on the bottom

Thanks for the encouragement markbimmer! Maybe it was the nights rest or looking at it again with fresh eyes....I managed to get it on with the 3rd try this morning. I spent the next hour celebrating much as you did

The tool finally did its job and worked. Mind you I did this alone so that may have been part of the issue. What finally worked was he following..

- Disconnected the dynamic drive hose mount bracket that was in front of the compressor and pulled those off to the side

- Cleaned and dried the pulleys completely

- Placed the belt over the main pulley then attached it on the bottom of the compressor pulley

- Cranked clockwise on the main nut ( 27mm socket in case anyone wonders)...make sure you can do a long pull on this to keep pressure on the belt....

- Maintained tension on the belt with my hand and helped the tool turn the corner with the belt and made sure it "caught or bit" the edge of the pulley

That finally did it !


I can really see why this is such a pain....I don;t want ot have to deal with this thing again. Perhaps a better tool as you described would make it easier.


BTW...don;t waste your money on the wedge like tools they sell online or at the auto parts stores. It wont fit on the bmw pulleys. I'm sure it works fine for domestic cars/ pickups and such though....
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  #7  
Old 12-14-2015, 02:22 PM
blink_ blink_ is offline
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Location: England
 
Join Date: Mar 2014
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Mein Auto: 750LI & Opel Astra Turbo
I just used a long breaker bar with the torx bit on, I thought it was pretty easy.

am I talking about a different job? I replaced the belt on the water pump
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  #8  
Old 12-14-2015, 02:28 PM
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markbimmer markbimmer is offline
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That's the belt to the right of the ac one, that one took me 2-3 minutes.... Why? It has a tensioner, that sadly the ac belt doesn't, just the 2 pulleys which makes it harder to put on
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  #9  
Old 12-14-2015, 02:44 PM
blink_ blink_ is offline
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Location: England
 
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Mein Auto: 750LI & Opel Astra Turbo
ah right, my ac belt was in good condition, so didn't change it
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  #10  
Old 01-08-2016, 10:21 PM
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paulmurphyhomes paulmurphyhomes is offline
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Mein Auto: M3, 745li, Speclzd FSR Pr
I have a BMW tool if anyone needs to use it. I'm in the Huntington Beach area. Made it very easy.
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