How to Change the Pulleys and Replace the belts DIY & Diagnosis | BMW 335i N54 E90/E92/E82/E71/&More

This is a full repair of a faulty and noisy pulley with an install of an official BMW replacement kit. It covers 3 pulleys and the belt, and it's cheap. I provide tips and guidance for beginners. I provide the steps for the advanced. I may upload a shortened version for the advanced mechanics later.
I have dozens of videos that will be uploaded soon! Many of the videos have very unique mods for my 335i build that will let you up your E90/E92/E93's performance and looks.
Stay tuned, and SUBSCRIBE for more. Thanks for the support! Have an awesome day. 😄
Parts are from FCP Euro:
Serpentine Belt CON-7K1855 $26.39
Automatic Belt Tensioner Assembly INA-5340253100 $78.99
Drive Belt Idler Assembly INA-5320515100 $24.49
Drive Belt Idler Assembly INA-5320514100 $30.69
Pulley Bolt Cover BMW-11281435114 $3.49
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This is for N54 engines which covers these vehicles:
2006-2010 BMW E90/E91/E92/E93 335i
2007-2010 BMW E60/E61 535i
2007-2010 BMW E82/E88 135i
2007-2010 Alpina B3
2008-2010 BMW E71 X6 xDrive35i
2008-2012 BMW F01 740i
2009-2016 BMW E89 Z4 sDrive35i
2010-2013 BMW E92/E93 335is
2010-2013 Alpina B3 S
2011-2012 BMW E82 1-series M-Coupe
2011-2016 BMW E89 Z4 sDrive35is
2012-2013 Alpina B3 GT3
Please note that different cars will have slightly different builds, but this video may still be used as a reference. The video may even provide a bit of info for the N55 crowd as well. Good luck!
CHAPTERS
0:00 N54 / 335i Bad pulley / bearing / belt sound clip
0:30 N54 Diagnosing grinding, ticking sound part one
1:28 N54 Disassembly to access pulleys and belt
2:19 E92/E90 Radiator fan removal
6:00 N54 Turbo inlet loosening
7:40 N54 Pulley caps removal
8:12 N54 Verbal labeling of pulleys and accessories
8:43 Colton’s diagram of N54 pulleys, accessories, and belt orientation
9:37 N54 Belt removal with T60 bit
10:40 BMW Accessory Drive Belt Kit and part numbers, prices, and unboxing
11:22 N54 Tensioner pulley removal (step 1)
13:30 Recommendation to remove intercooler pipe, but flex if you don’t
14:15 N54 Up close look at pulley orientation and cover direction placement
14:53 N54 noise issue alternatives if not the pulleys
15:49 N54 Idler Pulley removal (3rd one/largest)
16:58 N54 Comparing old pulley to new pulley
18:02 N54 New pulley kit installation
22:16 N54 Remove tensioner pin and install new belt (inspect old belt)
24:02 Test new parts before full reinstallation
24:35 Quick recap of reinstallation and tips

[@kylesmith2604]

As a tip, you should most definitely remove the tensioner lock pin after slipping the belt on. Makes things 10x easier

[@fixitcolton]

Yea, that's a good idea. This car is so dramatically simple to loosen the belt that I probably didn't think twice about that, 🤣, it's a really old video. Thanks for sharing, and hopefully others will consider doing this.