E60 Discussion Anything and everything to do with the E60 5 Series. All are welcome!
Sponsored by:
Sponsored by:

Serpentine belt alignment

Old 03-12-2019, 02:56 PM
New Members
Thread Starter
Join Date: Apr 2017
Location: pa
Posts: 108
My Ride: 528i
Model Year: 2010 528i e60 N52k
Default Serpentine belt alignment

The pulley located on the spring tensioner appears to be about 1/4 inch wider than the width of the serpentine belt.

I make an assumption that when the BMW dealership changed the belt a few years ago, they aligned the serpentine belt on the tensioner pulley exactly in the middle of the pulley. If they did, there would be a small empty space on the pulley today towards the radiator and also a small space on the pulley towards the firewall.

Two questions:

When most of you are putting on a new serpentine belt do you align the belt exactly in the middle of the pulley or doesn't it matter?

If I loosen the tensioner and move the belt exactly in the middle of the pulley, would I find the belt comes back to the front edge of the pulley closest to the radiator again?

scottalexander is offline  
Old 03-12-2019, 08:52 PM
New Members
Join Date: Oct 2012
Location: Chestermere AB
Posts: 575
My Ride: 535xi
Model Year: 2008

If the pulley is on the flat side of the belt, it will ride naturally to one side or the other depending on any minor misalignment/tolerance of the tensioner. Moving the belt will only have it go right back. If the belt is fully riding on the pulley, you're fine.
audiophool is offline  
Related Topics
Thread Starter
Last Post
DIY: Do It Yourself
10-31-2015 04:34 AM
E60 Discussion
01-29-2013 06:22 PM
E60 M5 Discussion
01-29-2013 06:20 PM
Private Member Classifieds
05-24-2011 02:47 PM
DIY: Do It Yourself
07-01-2009 05:03 AM

Thread Tools
Search this Thread
Quick Reply: Serpentine belt alignment

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.