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BMW Engine Air Filter Replacement
 
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Pelican Technical Article:

BMW Engine Air Filter Replacement

Nick Czerula

Time:

30 minutes30 mins

Tab:

$30

Talent:

**

Tools:

Flathead screwdriver, T20 Torx driver, 10mm socket (socket set)

Applicable Models:

BMW 325i Sedan (2006)
BMW 325xi Sedan/Wagon (2006)
BMW 328i Coupe/Conv (2007-13)
BMW 328i xDrive Coupe (2009-13)
BMW 328i xDrive Sedan (2009-11)
BMW 328i xDrive Wagon (2009-12)
BMW 328i/xi Sedan (2007-11)
BMW 328i/xi Wagon (2007-12)
BMW 328xi Coupe (2007-13)
BMW 330i/xi Sedan (2006)
BMW 335d/i/xi Sedan (2007-11)
BMW 335i xDrive Coupe (2009-13)
BMW 335i xDrive Sedan (2009-11)
BMW 335i/is Coupe/Conv (2007-13)
BMW 335xi Coupe (2007-13)

Parts Required:

Engine air filter

Hot Tip:

Work with a cool engine.

Performance Gain:

Achieve highest possible gas mileage

Complementary Modification:

Replace dry rotted or cracked intake air ducts.

In this article, I'll go over the steps involved with replacing the air filter on the BMW E90.

Replace air filter once a year or more frequently if you drive in a dusty area. I suggest checking each time you change your engine oil, assuming you are changing your oil every 5,000 miles. It's easy to remove to inspect it and replacing it early will help you maintain your maximum fuel economy.

Models without turbo-charger:

Working at front of radiator support, remove two T20 Torx fasteners for the intake duct.
Figure 1

Working at front of radiator support, remove two T20 Torx fasteners for the intake duct. (green arrows)

Working at intake air duct connection at air filter housing, using a small flathead screwdriver, release retaining tabs on each side and pull duct off.
Figure 2

Working at intake air duct connection at air filter housing, using a small flathead screwdriver, release retaining tabs on each side and pull duct off.

Then, pull intake duct out of radiator support and remove from vehicle.
Figure 3

Then, pull intake duct out of radiator support and remove from vehicle. (green arrow)

Then loosen hose clamp (green arrow) and remove air filter housing fasteners.
Figure 4

Then loosen hose clamp (green arrow) and remove air filter housing fasteners. (yellow arrows)

Disconnect mass air flow sensor electrical connector by releasing tab with small flathead screwdriver and pulling connector out of sensor.
Figure 5

Disconnect mass air flow sensor electrical connector by releasing tab with small flathead screwdriver and pulling connector out of sensor. (green arrow)

Remove air filter housing from vehicle by lifting up and disconnecting duct from mass air flow sensor.
Figure 6

Remove air filter housing from vehicle by lifting up and disconnecting duct from mass air flow sensor.

Next, place air filter housing on solid working surface.
Figure 7

Next, place air filter housing on solid working surface. Then, loosen six T20 Torx intake air housing fasteners. (green arrows) Then remove air filter housing lid.

Remove air filter from intake air housing and replace with new part.
Figure 8

Remove air filter from intake air housing and replace with new part. Install filter housing lid to housing and tighten fasteners. Install filter housing in engine compartment, then tighten clamp, housing fasteners and reconnect duct.

Models with turbo-charger: 
Remove air filter from housing, install new filter and reinstall lid.
Figure 9

Using a flathead screwdriver, release air filter lid clips. (green arrows)

10
Figure 10

Remove air filter from housing, install new filter and reinstall lid.

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Comments and Suggestions:
Prav Comments: 2007 BMW E90 320i ...206000kms Automatic
Good day, please can you assist with the problems that I am having with my car. I recently had the engine overhauled as it had a bearing knock.
1 Since I got the car back about a month ago, when the car is started for the first time and the gear shifted to either REVERSE or DRIVE, the car idle drops and rises and shudders quite a lot and would sometimes stall. The car idles smoothly when in PARK and NEUTRAL.
2 The car stalls when pulling away from standstill. I noticed this happens very often when the car is hot.
3 The idle is not as smooth as it was before the engine was overhauled.
4 When my mechanic does a diagnostic test, he gets misfire on cylinders 1,3 and 4. The car is drivable as normal and doesn't have any signs of a misfire. He swopped the ignition coils from a normally performing car.

I have done approximately 500kms since the engine was overhauled.

I've been back to the mechanic, he suggested decatting the car, then just as I was about to do that, he suggested first removing the sensors from the cats to establish whether the cats are blocked. He now suggests that it could be a faulty fuel pump.

All the above is a bit overwhelming for me and right now I am just as confused as my mechanic.

Please can you assist with advising what I should do. I live in South Africa, Gauteng.
May 6, 2017
  Followup from the Pelican Staff: Sounds like a mechanical timing issue. I would have them confirm mechanical timing is ok before digging too deep. - Nick at Pelican Parts  
JPS Comments: Do you sell the lid clips? I lost one.

Jeff
2008 335xi
April 18, 2017
  Followup from the Pelican Staff: They should be available. I’m not the best with part numbers, I am the technical question person.

Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need. - Nick at Pelican Parts
 
Kurt Comments: Is there anything with the computer or sensors that your have to reset after completing this DIY? If so how do you do this?
December 6, 2015
  Followup from the Pelican Staff: No. - Nick at Pelican Parts  
RobertM Comments: I just did this job, and was surprised to find an additional filter like the previous poster mentioned installed right next to the mass flow sensor. This was a pleated grey paper filter, same overall size as the yellowish filter pictured above, but probably thinner. I tried prying at it gently to see if it would separate, but it seems to be firmly attached didn't want to break anything. Is this supposed to be permanent? The job's all done and the car buttoned up, but I can take it apart again to get a photo if you need. BTW, mine is a 2010 E90 328i.
December 2, 2015
  Followup from the Pelican Staff: That filter is a carbon emission filter, and only replaceable with the lid of the filter. - Nick at Pelican Parts  
pogi Comments: is it recommended for remove the paper filter on the other side of the housing?
August 17, 2015
  Followup from the Pelican Staff: I don't follow, can yo share a photo of the filter you are talking about?
- Nick at Pelican Parts
 
ICE-T Comments: Hi Guys, i have read the on how to replace vvt motor in BMW E90 320i, and i am impressed. my question i if i dont have the reserting machine with me is it safe to drive the car to the nearest place where i can get someone to resert the car for me?
February 16, 2015
  Followup from the Pelican Staff: That depends on what service you are performing. If just removing a gasket and reinstalling the motor, the answer is most likely, yes. - Nick at Pelican Parts  
NANA Comments: GOOD MORNING
PLESASE I HAVE TRIED SENDING MY VINWBAWK71030P183457 BUT IT NOT WORKING OUT. IF YOU CAN BE OF GREAT ASSISTANCE TO ME TO VERIFY UNDERLISTED PART AND PRICES I NEED FOR MY CAR.THANK YOU
please can I get part as stated bellow and their quantity?
front bumper-1piece
lower arm bushing-2 pieces
stabilizer link-2 pieces
support arm bushing-2 pieces
rear break pads-2 pieces
rear break clip-1 piece
air filter-1 piece
engine oil-6 pieces
oil filter-1 piece
September 23, 2014
  Followup from the Pelican Staff: Give our parts specialists a call at 1-888-280-7799. They can help you find the right part.
- Nick at Pelican Parts
 

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Page last updated: Tue 9/19/2017 02:25:16 AM