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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 09-20-2008, 11:01 AM   #1
davida3544
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Join Date: Mar 2008
Location: Stockport, England
Posts: 9
My Ride: 318i sport convert
Air filter replacement (N42 engines)

Our engines differ from all the other DIY's I've seen for the air filter so thought i would post this.

Hope it helps.

1. Remove the cover with the BMW badge on it. See pic 1

2. Remove the top cover. See pic 2

3. Remove the two hex bolts holing the filter housing. See pic 3

4. Unscrew the jubilee clip and pull back the pipe. See pic 4

5. Pull the small pipe off the housing. See pic 5

6. Remove the MAF sensor plug by pushing in the two lugs and pulling. See pic 6.

Continued
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Old 09-20-2008, 11:14 AM   #2
davida3544
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Join Date: Mar 2008
Location: Stockport, England
Posts: 9
My Ride: 318i sport convert
Air filter replacement (N42 Engines)

7. Loosen the jubilee clip and remove the pipe. See pic 7

8. Remove all screws holding on the lid. At this time you can see the filter but can not remove it yet. See pic 8

9. Remove the two hex nuts holding on the MAF sensor. Pull the sensor away from the housing. See pic 9

10. The air filter can now be removed and replaced.

11. This could be a good time to clean the MAF with the proper cleaner.

12. Replace in the reverse order.

Easy
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Last edited by davida3544; 09-20-2008 at 11:53 AM.
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Old 09-20-2008, 11:27 AM   #3
00bmw323
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Join Date: Mar 2008
Location: Killa4nia
Posts: 4,062
My Ride: 00 323/91 integra RS
nice DIY
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All low no go
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Old 10-06-2008, 04:22 PM   #4
libtech75
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Join Date: Sep 2008
Location: NYC
Posts: 4
My Ride: 03' BMW 325xi
Exactly what I was looking for...
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