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      08-31-2020, 06:18 AM   #3
GewoW
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Drives: E92 M3 LSB/Black 6MT
Join Date: Mar 2007
Location: Montreal, Canada

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2011 BMW M3  [9.34]
Quote:
Originally Posted by maicol76 View Post
Quote:
Originally Posted by GewoW View Post
Hey guys

I am aware that since mid 08 the PS pump spins the other direction.

Is removing the AC from a 2011 as simple as buying an older 08 pump and swapping it + smaller belt? Or am i missing something (aka different mounting, incompatibility, etc)?

Any help is appreciated
Many guys ask me questions by message. So I leave an answer here.

Use the PS pump used in a car before May 2008 ( PS Pump after May 2008 have the opposite rotation direction.).
And, one of the two pulleys seems to have been changed for May 2008's pump, but it's too old to remember. Search for it and change it if there is a pulley with a different part number.
Then, choose a proper length belt. That's it. Easy job.

IMO, don't stress out to make and mount additional custom pulleys, just change the PS pump. It's a really simple method and easy way, and can have the same quality as stock.

There were no problems for 3~4 years.
Amazing, thank you
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