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Microfilter Change

Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 3 Series
Forum Discription: This forum will deal with any issues on the BMW 3 Series (E21, E30, E36, E46, E90, E91 & E92)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=8457
Printed Date: 05-May-2024 at 03:06


Topic: Microfilter Change
Posted By: grimesj
Subject: Microfilter Change
Date Posted: 16-June-2004 at 20:21
Want to change the microfilter in my 96 323i coupe. Bentley Manual lead me up the garden path!!! Any advice?



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E36 323i Coupe - Let me know aboout gadgets and trick bits



Replies:
Posted By: jonnie p
Date Posted: 16-June-2004 at 21:35

please emphasise on micro filter as i am a mechanic and not heard of any filter called "micro" filter

 

jon



Posted By: grimesj
Date Posted: 17-June-2004 at 10:17
Could be referred to as a panel filter. For the filtration of the air entering the cabin. BMW call it a microfilter.


Posted By: M3 Evo
Date Posted: 17-June-2004 at 10:26
I think it a pollen filter and boy do I need this right now. I must look so sad in my car at the mo as my hayfever is so bad have to keep the roof up Climate control on and a nice clean microfilter just replaced by BMW.

Tristan


Posted By: dave 328
Date Posted: 17-June-2004 at 10:34

You get to it from the driver's footwell (If your car is RHD!). It is located next to the foot rest (next to the clutch) on top of the transmission tunnel.

I think I can remember what to do.

Remove the panel cover from under the steering column (the one with the footwell light in) and i think there is a small panel covering the filter. With these removed you should see a black plastic rectangular cover. On the cover there is a little knob that will turn to unlock the housing access door. It will only twist a little to unlock. Then remove the microfilter - try not to yank it out as it does rip and you may end up with half left inside. It is fiddly, but pull and waggle and it should come out.

With it removed use a hoover with the thin adapter to hoover inside the filter housing as mine had leaves and stuff inside.

when you put the new filter in, you will need to snap the outer plastic part (see old filter). Then wiggle it in.

Note; The filter has a tab on one end and this seats into the cover of the filter housing - on the cover it has a round recess for the tab to go in. I think the tab goes at the top and pointing towards the driver's side. I wondered why mine didn't fit in, and had to pull it out again.



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328 Coupe Sport, Digital climate, full leather, OBD computer, De-restricted with M50 manifold, big bore throttle, chippeduk remap, custom cold cone intake and X-brace


Posted By: grimesj
Date Posted: 19-June-2004 at 11:13
Does anyone have any pics of the above operation? I had the panel off so I can see what I'm dealing with. I think (assume) I've found where it's located, the problem being that there are several fixtures in the way eg the rotary pulley that decides where air is blown from (feet/general/face).
Can't see exactly how to or what to remove to gain access.

Any help much appreciated.



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E36 323i Coupe - Let me know aboout gadgets and trick bits


Posted By: grimesj
Date Posted: 19-June-2004 at 12:56
How do I put pictures on here (that aren't on the net)?

Got some pics to show what I'm looking at



Posted By: grimesj
Date Posted: 23-June-2004 at 13:11
Are people stumped by this one? Or Hopefully ogone away to think it over?
Really bugging me now, how something so simple can be such a puzzle.
Like I said before, I have taken some pictures but do not know how to post them.



Posted By: dave 328
Date Posted: 23-June-2004 at 16:57

I found instructions and pics on t'internet, but can't remember the address, try a search.

I think the pulley you are looking is as you say for the flaps in the ventilation system - look further towards the bulkhead (engine).

The filter housing is the last thing before the bulk head. You need to get your head stuffed right in the footwell right next to the pedals. It is more or less in line with the pedals as they get in the way when you changing the filter. As I said look for a rectangular box (about 18-20mm high and 50-60mm wide) sitting vertically but leaning at the top towards the rear of the car. It also has a sort of small lever which unlocks the cover.



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328 Coupe Sport, Digital climate, full leather, OBD computer, De-restricted with M50 manifold, big bore throttle, chippeduk remap, custom cold cone intake and X-brace


Posted By: kbannon
Date Posted: 23-June-2004 at 17:14
http://www.koalamotorsport.com/tech/e36/e36.microfilter.htm - is this any use?

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Current: 2009 E60 520d "Sport" tractor
Previous: 1989 E30 320i SE
1997 E39 523i
2003 E39 525i Sport Individual


Posted By: grimesj
Date Posted: 23-June-2004 at 17:49
I'll have a look again, see what I can see, cheers guys



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