Serpentine belt replacement diagrams needed?

Tiny
JEKYLLSHYDE
  • MEMBER
  • 2002 BMW 325
  • 3.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
I shredded the serpentine belt on my vehicle listed above 325ci. I just got the car off a buddy, and he couldn't remember what all tools and sizes I would need to remove the fan and change out the belt itself. I've looked online for diagrams of how the belt goes and for tools needed and the o lyrics thing I can find on Google are diagrams and tools needed to do the same job but on a e46 model of the same year.
Sunday, June 8th, 2025 AT 2:24 PM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
The tensioner bolt head should be 15mm or 16mm. Here is the belt routing which can be confusing if you don't have a picture of the belt beforehand. Check out the images (below). Let us know if you need anything else.
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Sunday, June 8th, 2025 AT 2:32 PM
Tiny
JEKYLLSHYDE
  • MEMBER
  • 3 POSTS
I'll get to work on it tomorrow, so I will definitely let y'all know how it goes. Thank you for your help.
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Sunday, June 8th, 2025 AT 2:41 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
You are welcome, happy wrenching.
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Sunday, June 8th, 2025 AT 3:03 PM
Tiny
JEKYLLSHYDE
  • MEMBER
  • 3 POSTS
Thank y'all for the help I was able to get the new belt on.
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Tuesday, June 10th, 2025 AT 10:18 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Nice work, hope you saved some money!
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Tuesday, June 10th, 2025 AT 11:52 AM

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