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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 08-07-2010, 02:21 PM
bimmer80 bimmer80 is offline
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A/C compressor drive belt

Hello Guys, does anyone know how to remove the A/C compressor drive belt on a 2005 745?


Thank you.
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  #2  
Old 09-17-2010, 10:59 AM
yuril yuril is offline
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From what I've heard from the shop, you just cut it off (!), as there is no tensioner.
Installing a replacement belt will need a special BMW provided tool.
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  #3  
Old 09-17-2010, 12:03 PM
bimmer80 bimmer80 is offline
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Quote:
Originally Posted by yuril View Post
From what I've heard from the shop, you just cut it off (!), as there is no tensioner.
Installing a replacement belt will need a special BMW provided tool.
I had to remove some screws from the back of the ac compressor and loosen the compressor for it to come off but no special BMW tools needed.
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  #4  
Old 09-17-2010, 12:53 PM
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MakaveliFaison MakaveliFaison is offline
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There is a tensioner on the AC belt
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  #5  
Old 08-16-2012, 06:29 PM
CatsMeow CatsMeow is offline
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Missing belt tensioner

Quote:
Originally Posted by MakaveliFaison View Post
There is a tensioner on the AC belt
Not on all models, just found this out. My ac belt broke and week ago so I decided to replace it as well as the drive belt however, when I went to put the belt on there was a lot of slack and no way to tighten it as there was no belt tensioner, so I was stumped. Either the guy ordered the wrong belt or when my belt broke it snatched the tensioner off as well....not likely but I had no clue. The tensioner was not in the pan and where it should be bolted was caked with road debris and what not. After I read this post a few times I realized that on some models they put a AC belt tensioner and on some models they didn't, not sure of which ones but I am absolutely certain that I didn't drop a belt tensioner when the belt broke. I'll do so more digging because apparently this belt is not the standard one that the parts stores see when they do there search, only the ac belt that goes along with the belt tensioner comes up. I'll be back.
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  #6  
Old 08-16-2012, 07:29 PM
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Rookie2008 Rookie2008 is offline
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Quote:
Originally Posted by CatsMeow View Post
Not on all models, just found this out. My ac belt broke and week ago so I decided to replace it as well as the drive belt however, when I went to put the belt on there was a lot of slack and no way to tighten it as there was no belt tensioner, so I was stumped. Either the guy ordered the wrong belt or when my belt broke it snatched the tensioner off as well....not likely but I had no clue. The tensioner was not in the pan and where it should be bolted was caked with road debris and what not. After I read this post a few times I realized that on some models they put a AC belt tensioner and on some models they didn't, not sure of which ones but I am absolutely certain that I didn't drop a belt tensioner when the belt broke. I'll do so more digging because apparently this belt is not the standard one that the parts stores see when they do there search, only the ac belt that goes along with the belt tensioner comes up. I'll be back.
You do realize this thread is from 2010 right?
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  #7  
Old 08-17-2012, 05:30 PM
CatsMeow CatsMeow is offline
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Quote:
Originally Posted by Rookie2008 View Post
You do realize this thread is from 2010 right?
Ah yeah.......however my AC belt did not break in 2010, just the last week, when I did a search this was the only thread that I came across and it was inconclusive. After doing some research and found out that both members are correct, BMW outfitted some cars with belt tensioners for the AC belt and others with no belt tensioner. However when you order a belt the only one that comes up is for the setup with the belt tensioner. Nevertheless after half a day of working I have replaced my AC belt for the non AC belt tensioner setup.
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  #8  
Old 08-17-2012, 06:26 PM
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Good Deal!
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  #9  
Old 12-15-2012, 12:54 PM
Larryd745i Larryd745i is offline
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Quote:
Originally Posted by CatsMeow View Post
Ah yeah.......however my AC belt did not break in 2010, just the last week, when I did a search this was the only thread that I came across and it was inconclusive. After doing some research and found out that both members are correct, BMW outfitted some cars with belt tensioners for the AC belt and others with no belt tensioner. However when you order a belt the only one that comes up is for the setup with the belt tensioner. Nevertheless after half a day of working I have replaced my AC belt for the non AC belt tensioner setup.
did you replace the non tensioner belt without the tool? if so how did you do it. did you loosen the compressor?
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  #10  
Old 03-08-2014, 01:30 PM
erniejazz erniejazz is offline
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yes, how is this done, have the same issue getting it back on.
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  #11  
Old 05-11-2014, 08:28 PM
BobbyBucher BobbyBucher is offline
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Erniejazz,

Did you get yours replaced? I have been trying all day to get mine on after doing a full cooling system replacement and just can't get it to go on. Please let me know how you did it.
I have a 2005 545i without the tensioner on the AC belt.
Thanks
Bobby
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  #12  
Old 05-12-2014, 05:57 AM
erniejazz erniejazz is offline
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Bobby you need to buy the tool. Do not order on ebay! Get someone on the phone and make sure they know what the tool is. $50
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  #13  
Old 05-12-2014, 03:47 PM
BobbyBucher BobbyBucher is offline
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Thanks, I will work on that tomorrow and I appreciate the reply!!
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  #14  
Old 08-12-2015, 03:22 PM
BigBody BigBody is offline
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A/C Belt not all the same

There is a special tool and some models have a A/C belt tension-er some don't. I was told when they switched to the electric fan those models have the none tension-er belt on the A/C compressor. The belt is not the same as the models with the tension-er. I experienced this first hand on my 2005 E66. Just for the record that's all. I hope this helps someone I came to the blog and couldn't get a clear answer to this question I had to find the answer first hand via paying a mechanic to do it versus doing it myself. Good luck !!!

Last edited by PAPER; 08-12-2015 at 04:36 PM.
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  #15  
Old 08-12-2015, 03:45 PM
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A B Able Truck A B Able Truck is offline
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Here's an option;


NAPA #70990
OTC #7425

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Last edited by A B Able Truck; 08-12-2015 at 03:51 PM.
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  #16  
Old 08-14-2015, 06:21 PM
BigBody BigBody is offline
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thanks for the information

Quote:
Originally Posted by A B Able Truck View Post
Here's an option;


NAPA #70990
OTC #7425

***
Thanks A B Able Truck that's good stuff to know I hope that video saves someone else some money.

Last edited by BigBody; 08-14-2015 at 06:23 PM.
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