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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 09-05-2014, 12:20 PM   #1
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Join Date: Sep 2014
Location: montreal
Posts: 19
My Ride: bmw 320i 2003

Hi guys i have a bmw 320i 2003 sedan Us,
so i got my diff oil changed today and when he removed the plug a presure has built up in the diff i was told by my mechanic to buy a "vent".
after calling bmw and local auto part they only seem to have to cover for like 3 bills... not sure how to proceed im guessing if its a vent that blocked it could be cleaned somehow looked for pictures without success... Please let me know if anyone already experience this before Thank you in advance.(first thread btw lol)
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Old 09-05-2014, 12:21 PM   #2
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The vent he is talking about is likely the weep hole on top.
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Old 09-05-2014, 02:13 PM   #3
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Ty!! Do you think i can clean it or i would have to change it??
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Old 09-06-2014, 01:25 AM   #4
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I don't think you can change it. I'd see if it can be cleaned. Remember, the diff doesn't build up pressure.

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320i us spec, differential

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