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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 05-19-2015, 02:13 PM   #1
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Join Date: May 2015
Location: Marblehead MA
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My Ride: 325 Xi
Oil Extractors

Hi, Just bought a used 325Xi and joined. Question. Does the dipstick tube give access to the bottom of the oil pan allowing an oil extractor pump to be used to change oil? I know that that does not allow for checking the drain plug for signs of engine wear, but is that all that important these says especially since so much is aluminum and not magnetic? Thanks.

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Old 05-19-2015, 07:06 PM   #2
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Location: El Paso
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My Ride: BMW 2003 330xi
Yes, I believe you can use an oil extractor.

But by all means, I encourage you to actually just pull the plug. It's very easy, and you can clean out all (if any) small debris from the bottom of the pan.

Just because it is aluminum, it does not mean it cannot harm your engine. Granted, the only way to actually remove large parts would be to drop the pan and inspect.
Change your baby's oil the right way!!

Edit: Seeing as you're new and probably have some questions, we usually use 5w-30 in our engines. Mobil 1, Liqui Moly, and Redline are the top quality oils. I use Mobil 1.

Last edited by Kye7; 05-19-2015 at 07:07 PM.
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Old 05-19-2015, 07:37 PM   #3
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I use one on mine, and when I subsequently unscrewed the drain plug, very little additional oil remained.

If you do get an extractor, I suggest looking into the manual pump kind. Mine uses compressed air and a venturi and it is s-o-o-o-o slow.
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Old 05-19-2015, 10:50 PM   #4
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Thanks for the replies. Just thought I could avoid the jacking and jack stands. Comment on the aluminum was referring to the magnetic plug on my 2002 ( model, not year). I've done the research on the site and plan to use Mobil 1 0w-40 .

I'm not realy new to the cars, I've owned a 73 2002, a 74 tii, and a 96 E36 328i.

Thanks again. Looking forward to all the great info on this site.

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Old 05-20-2015, 01:01 AM   #5
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You never get all the oil out with a drain plug change. I looked at the pan off and there are cavities where oil will still not drain out the plug with gravity.

I use an extractor.

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Old 06-16-2015, 01:42 PM   #6
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I have used an extractor for years. I measure what comes out against an occasional traditional oil changed to see how they compare and there is no measurable difference. Both match what is expected. I use Mobil1 0W40. Easy, especially with the filter on top. My extractor takes just long enough to have a cup of coffee, then I come out and change the filter. Very little mess, no jacking etc.
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Old 06-16-2015, 01:57 PM   #7
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PS I typically maintain 6-7 cars (kids cars and admittedly a bit of a car habit). They range from 50k to almost 200k. I dropped the oil pan on my 150k Jeep Wrangler recently and no it was not full of crude. Perhaps synthetic oil avoids that.
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Old 06-16-2015, 08:42 PM   #8
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I use a BavAuto extractor and M1 0W-40.
Shawn in VA/DC.

- Shawn's 2004 IR/Alc. w/6MT ZHP (1/351 built)- http://bit.ly/1nhx4gk

- Colin's 2004 OB/Sand w/6MT ZHP (1/25 built)- http://bit.ly/1qT1tT1
- Shawn's 2004 OB/NB w/AT ZHP (sold)
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Old 06-17-2015, 10:40 AM   #9
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I find the extractor to be clean, efficient and eliminates the need to jack the car up and put on jack stands. Some may enjoy crawling under the car but I do not, do what works for you.
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Old 08-26-2015, 12:50 AM   #10
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Location: Toronto, Ontario, Canada
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My Ride: 330Ci Coupe Auto
I used extractor as well. I did remove the drain plug on initial try to confirm extractor method does extract all of the oil, so this work perfectly
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