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      10-21-2010, 02:38 PM   #1
tom @ eas
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▀▄ eas | Macht Schnell e9x M3 Performance Underdrive Pulley Installation (DIY)

In an ongoing video tutorial series from Macht Schnell, this post will outline the steps needed for installation of the the Macht Schnell Performance Underdrive pulleys on the 2008+ BMW M3:



Items needed:
e9x M3 S65 Performance Underdrive Pulley Set (belts included)

Tools needed:
T20 Torx
T25 Torx
T45 Torx

10mm socket
14mm socket
16mm Socket
14mm Wrench (open end)

1-3" drive extension
Standard screwdriver

10mm socket
14mm socket
16mm Socket

1"-3" 3/8" Drive extension (optional)
Standard Screwdriver

Time needed for installation is approximately 60-90 minutes.

Enjoy.
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      12-02-2010, 03:14 PM   #2
onefastman
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Great diy!
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      12-07-2010, 02:26 AM   #3
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u make it look easy lol.... i'd be worried about not being able to put the belt back on or improperly installing the belts. that's the most confusing part i think.
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      12-07-2010, 11:26 AM   #4
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Ya, I think I am going to pay someone to do it for me.
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      12-10-2010, 12:34 PM   #5
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Anyone seen longterm problems with these at all?
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      12-10-2010, 01:16 PM   #6
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Quote:
Originally Posted by revmatch View Post
Anyone seen longterm problems with these at all?
None reported on our end, users have been very happy with the results.
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      08-27-2011, 06:18 PM   #7
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do these pulleys underdrive the water pump, too. this could cause massive problems with the S65. Cannot find any information regarding this.
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      08-29-2011, 11:39 AM   #8
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Quote:
Originally Posted by lukester View Post
do these pulleys underdrive the water pump, too. this could cause massive problems with the S65. Cannot find any information regarding this.
S65 has a very efficient cooling system. All S65 UDPs on the market underdrive the water pump, but are within safe levels both on and off the track.
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      02-18-2012, 12:30 AM   #9
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Make sure you ALSO look at this post: http://www.m3post.com/forums/showthread.php?t=626242

I had to call EAS twice, once to get the ft/lbs to tighten the bolts to (they said OEM recommends 18-22 ft/lbs) and the second time was because the picture in the video showed the belt configuration for 6MT not DCT. If you look closely the actual video they are doing it on a DCT but it had me a little stuck. Finding the above post helped!
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      04-12-2013, 07:07 PM   #10
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Just completed this. It took me more than the 90 minutes, I always run into problems... It was also 45 degrees out. But the video helped tremendously so thank you very much for putting that together!!!

It was helpful to have a friend stop by and help me put the belts back on, that was the hardest part. Thanks again for the video!
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