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Old 12-04-2012, 11:57 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
Join Date: Mar 2008
Posts: 25,236
Mein Auto: 02 BMW 525i M54 auto 130K
Originally Posted by DPP528 View Post
Pull the dipstick while it's running and then put it back in.
Here's a picture of me running a vacuum test (not a leak test, per se), using the dipstick tube.

All you need is a $5 hose and some water:
- How to test the crankcase ventilation (aka CCV, CVV, PCV, CPV, & OSV) pressure regulating valve system (1)

Please read the suggested threads and add value, either by pictures or by descriptions, so the next person stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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