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      07-22-2011, 06:32 AM   #1
ghost_rider
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a/c compressor pulley

Hello guys

Is it possible to change the ac compressor pulley without having to change the whole compressor because mine is broken ?
If possible a part number is needed

And can i put a smaller belt without fitting it to the compressor pulley as an alternaive at this time ?

By the way i found some chinese pulley on the market but i am not planning to change it every week
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      07-23-2011, 08:40 AM   #2
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i have fitted now a smaller belt "6Kp 1660" that I did not attach it to the ac compressor pulley until i get it fixed
P.S I did not find any part number today for the pulley i searched the BMW ETK
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      12-11-2011, 11:25 PM   #3
Z3shahzad
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Did you find the pully? mine is broke too
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      12-12-2011, 10:39 AM   #4
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Originally Posted by Z3shahzad View Post
Did you find the pully? mine is broke too
It is most likely the AC clutch is broken due to the AC compressor seizing. The AC clutch/Pulley is not a separable replaceable item. Yuo need to get a new AC compressor.
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      12-12-2011, 07:27 PM   #5
Z3shahzad
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If I bypass the compressor n put the smaller belt in for now. The only problem I will face is no ac rite? Does anyone have a diagram on how to put in the smaller belt?
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      12-13-2011, 07:05 AM   #6
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Quote:
Originally Posted by Z3shahzad View Post
If I bypass the compressor n put the smaller belt in for now. The only problem I will face is no ac rite? Does anyone have a diagram on how to put in the smaller belt?
I hate to tell you this, but BMW doesn't make a non-airconditioned version of the N52 for the 325i in the USA. You will not be able to get a "shorter" belt because it doesn't exist. And if for some unknown reason BMW does make a non-airconditioned N52 for other (outside the USA) markets and a belt does actully exist (which is doubtful), you'll not be able to buy it anyway because BMW stopped selling European-market parts in the USA several years ago. You need to get the AC system repaired.
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      12-26-2011, 11:44 PM   #7
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my ac compressor pulley messed up and managed to bypass it with a smaller belt got it at autozone, bel brand is duralast 431k6 and works perfectly fine.
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      02-03-2012, 11:36 AM   #8
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my ac compressor pulley messed up and managed to bypass it with a smaller belt got it at autozone, bel brand is duralast 431k6 and works perfectly fine.
is this legit the guy only has 1 post
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      02-13-2012, 07:59 AM   #9
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the 320i belt setup without the compressor pulley
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Last edited by ghost_rider; 02-13-2012 at 08:10 AM.
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      06-15-2013, 01:33 PM   #10
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A/C BELT not covered under BMW Extended Warranty Gold Package. Anyone been told this by dealer?

Last edited by rogerdiaz; 06-16-2013 at 10:50 AM.
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      06-15-2013, 10:57 PM   #11
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A/C BELT not covered under BMW Extended Warranty Gold Package. Anyone been told this by dealer?
The belt is $41 on-line at get BMW parts.com and takes about 10 minutes to install.
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      02-18-2014, 04:25 AM   #12
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i want to bypass the ac compresor to. what type of belt can i use? there was one post here with a model but dont know if thats legit. btw its a 320i. thanks
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      07-13-2014, 01:20 PM   #13
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Bypass on AC compressor with shorter belt

[quote=acerati50;11042707]my ac compressor pulley messed up and managed to bypass it with a smaller belt got it at autozone, bel brand is duralast 431k6 and works perfectly fine.

Thanks for the idea.. I am currently doing this. Works fine, just seriously sucks to drive with no AC. Currently searching for a cheaper AC compressor suggestions are appreciated.
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      07-14-2014, 11:58 PM   #14
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Since BMW never sold an E9X without A/C, you will never find an official belt that is the correct length to bypass the A/C pulley.

But there is nothing magic about BMW belts. Go to any autopart store and buy a shorter belt. As long as the width and number of grooves matches, then you will be fine.

I've done this on other cars.

Things to ensure:
1) That the belt is not too loose. If it is, it could fly off at high RPM and do some real damage.
2) There is no official belt routing diagram, so make sure the pulleys are still rotating the correct direction.
3) Make sure the belt won't "move" and make contact with anything in the engine bay when the engine REVS.
4) If you're not comfortable doing this, then don't. Get the A/C fixed.
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