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Thread: Ac bypass belt length

  1. #1
    Join Date
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    2006 bmw 525xi

    Ac bypass belt length

    I have a 2006 BMW 525XI and i am wanting to bypass the ac compressor since the bearing is out. Can anyone tell me what length i would be safe to go with? Time is of the essemce and the parts store is on my way to the car! Ty

  2. #2
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    Hmmm, I thought all modern bimmers have a separate belt for the ac compressor. Go to www.realoem.com and enter the last 7 characters of the car’s vin. Hit enter and bookmark the page. Check the engine section.

  3. #3
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    Nope...one belt, Mark. In fact, there's not many ancillaries to run these days, since water pumps and power steering are both electric now.

    Aboom, I'd highly recommend that you just replace the compressor. You can get a used one cheaply from a salvage yard. No one's going to be able to give you a belt length, because every U.S. 525xi, and probably every one in the world, came with a/c. In fact, since there's an idler pulley between the a/c and the alternator, it's potentially impossible to run without the compressor anyway, because the belt might have to cross directly through the tensioner assembly.

    Here are twelve pages of compressors, at varying prices:

    http://www.car-part.com/cgi-bin/sear...ey=&userPage=8
    Last edited by bmwdirtracer; 10-13-2018 at 07:28 PM.

    Chris Powell
    Racer and Instructor since, well. decades, ok?
    Master Auto Tech, owner of German Motors of Aberdeen
    BMWCCA 274412
    German Motors is hiring ! https://www.bimmerforums.com/forum/s...1#post30831471

  4. #4
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    I just looked under the hood of an F15 PHEV. One belt, it's toothed, like a timing belt. The only thing it's for is the starter.

    Water pump, AC compressor are electric. The high voltage stuff takes place of the alternator. If it wasn't for this retarded starter, they wouldn't even have a belt. And, if this starter fails, the e-machine will start the engine.
    ASE and BMW Master Certified Technician

  5. #5
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    My E39 (2002 I6 M54) has a separate belt just for the A/C compressor. Get some eyes under there to verify your situation.

  6. #6
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    Two belts good, one belt bad. Or something like that. See “Animal Farm.”

  7. #7
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    Quote Originally Posted by MarcoZandrini View Post
    Two belts good, one belt bad. Or something like that. See “Animal Farm.”
    All belts are equal, but some belts are more equal than others.





    Life's tough. It's tougher when you're stupid.
    -John Wayne

  8. #8
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    'Comrade,' said Snowball, 'those belts that you are so devoted to are the badge of slavery. Can you not understand that liberty is worth more than belts?'

    Chris Powell
    Racer and Instructor since, well. decades, ok?
    Master Auto Tech, owner of German Motors of Aberdeen
    BMWCCA 274412
    German Motors is hiring ! https://www.bimmerforums.com/forum/s...1#post30831471

  9. #9
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    Napoleon reminds me of someone......

    Chris Powell
    Racer and Instructor since, well. decades, ok?
    Master Auto Tech, owner of German Motors of Aberdeen
    BMWCCA 274412
    German Motors is hiring ! https://www.bimmerforums.com/forum/s...1#post30831471

  10. #10
    Join Date
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    This thread has taken an odd turn...not that I'm complaining, mind you.





    Life's tough. It's tougher when you're stupid.
    -John Wayne

  11. #11
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    Quote Originally Posted by 02Pilot View Post
    This thread has taken an odd turn...not that I'm complaining, mind you.
    " I do not understand it. I would not have believed that such things could happen on our forum. It must be due to some fault in ourselves. The solution, as I see it, is to work harder."
    (-Boxer the horse)

    Chris Powell
    Racer and Instructor since, well. decades, ok?
    Master Auto Tech, owner of German Motors of Aberdeen
    BMWCCA 274412
    German Motors is hiring ! https://www.bimmerforums.com/forum/s...1#post30831471

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