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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 01-12-2017, 03:30 AM   #21
Adam E46
Registered User
Join Date: Dec 2016
Location: Houston Texas
Posts: 6
My Ride: BMW 330CI 2001 e46
Well at least its a good start.

I did change the oring with an OEM part from www.oembimmerparts.com/

fuel filter was changed about 13k miles ago.

I have not changed the fuel pump, what to do to inspect it or verify if its an original part ?

I smoked tested the vehicle 3 times, no leaks from intake boot, CCV or components.

luckily tomorrow i am off, I will take another look and try to get a better evaluation.
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Old 01-12-2017, 06:32 AM   #22
OEM ///Member
Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 20,975
My Ride: 330CiC, M5, X5
Originally Posted by Adam E46 View Post
I did change the oring with an OEM part from www.oembimmerparts.com/
I am unaware if oembimmerparts offers the proper O-ring for the 325/330 engine.

If the O-ring was green it was probably not the correct O-ring.

BMW does not offer a replacement DISA O-ring for the 325/330 engines, the 323/328 engines did have a serviceable DISA O-ring.

The 323/328 O-ring is 1/8" thick, which is too thick for the 325/330 DISA. The O-ring for the 325/330 is 3/32" thick and is not a standard part as this O-ring replacement is a hack or modification.

So you might want to double check what you have or post a link for the part you purchased.

You really need to monitor the Fuel Trims as this will give you a better idea about what is going on with the engine in this car.
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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330ci, bmw, e46, missfire

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