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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 06-05-2015, 06:46 AM   #1
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Join Date: Feb 2015
Location: Los Angeles, CA
Posts: 43
My Ride: 330i
DIY - Most Common Vacuum Leaks (Diagnosing P0171 & P0174)

If you've got P0171 or P0174, you've got a vacuum leak and in this video I will go over all the most common causes for these leaks on the M54 & M52 engines. 95% of you who have this problem will be covered by this video. This is a great place to start if you've got this very common problem.

Hope you find it helpful.

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