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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 10-24-2012, 11:40 AM   #1
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Join Date: Oct 2012
Location: tennese
Posts: 8
My Ride: e46 2000
Smile vacuum leak help please

hello everyone,, im now new and trying to find a vacuum leak on my e46 2000
where the easiest vac hole i can test a smoke test with a cigar. a nice picutre of the diagram would be greatly apreciated.
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Old 10-24-2012, 11:42 AM   #2
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Join Date: Mar 2006
Location: Southern California
Posts: 25,963
My Ride: Lexus
Don't test. Replace.

There are various known places where all E46s leak vacuum. If you maintain these items, they'll be problem free for a lifetime. See sig, click on JFOJ. Do it. Hit the back button, see sig again--do it all!

Welcome to the forum!!
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Old 10-24-2012, 11:46 AM   #3
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Join Date: Oct 2012
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My Ride: e46 2000
so u suggest to replace all the vac holes with testing which hole is leaking...
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Old 10-24-2012, 12:00 PM   #4
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Location: Fairfax, VA USA
Posts: 22,446
My Ride: 330CiC, M5, X5, E93
Read the first link below in my signature. Mango has this think is his signature.

Intake boots, SAP vacuum hoses, CCV hoses and highly likely is the CCV lower oil return line. $15 part that will give you close to a dozed codes.

Valve cover leaks as well as dipstick tube and oil fill cap can be a problem as well.
Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 10-24-2012, 12:11 PM   #5
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Join Date: Oct 2012
Location: tennese
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My Ride: e46 2000
wow thank you jfoj and emango really help alot bout to try it now and i let u kno how it goes
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