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6 Series
The BMW 6 Series builds on BMW's sporty heritage with aggressive lines and an incredible motor to back the design up. Available in coupe and convertible trims with a standard 4.8 liter engine producing 360 horsepower and 360 lb-ft of torque, the 6-series is a popular choice that exceeds expectations.

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  #1  
Old 11-17-2010, 05:18 AM
whitedesigns whitedesigns is offline
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DIY Microfilter change

Ok, I have searched the 6 forum with no results. Has anyone out there changed the microfilters on their 6? If so, can you post instructions on how to do so? All I could find was how to reset the service indicators. Thanks!
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  #2  
Old 11-17-2010, 05:47 AM
AFCNEAL AFCNEAL is offline
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Undo the clips, take the cover off, remove/replace filter, replace cover and re-fix clips!!!
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  #3  
Old 11-17-2010, 06:46 AM
whitedesigns whitedesigns is offline
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From a previous thread I searched and found:

"Can anyone recommend a place to purchase the microfilters and advise how to change on a 2005 645ci? My light is on and the dealer wanted $140 for the parts and $80 to change it!"

This leads me to believe:

1. There is more than one filter

2. If it was as simple as opening a compartment and placing the new one in, it wouldn't cost $80.

Does anyone know where the microfilters are located and how to change them?

I replaced a 3 series microfilter which was a bit of a trick. It was segmented and had to be folded to slide into the compartment, which was under the dashboard.

I am not asking about the engine air filter if anyone is confused. Thanks!
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Old 11-17-2010, 07:16 AM
AFCNEAL AFCNEAL is offline
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There are two microfilters - under the hood just in front of the windshield - black plastic boxes about 12in by 6in with the lids clipped on. Follow my instructions above, take a lid off and you'll see the filter.

They're $80 because they are BMW parts................
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  #5  
Old 11-17-2010, 08:15 AM
jeremysm1 jeremysm1 is offline
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From what was described in this thread, seems like it would be similar to the 7 series...see the post here as it has pictures along with the instructions: http://www.bimmerfest.com/forums/sho...d.php?t=260208

I'm going to do this myself too!
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  #6  
Old 11-17-2010, 08:19 AM
AFCNEAL AFCNEAL is offline
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Quote:
Originally Posted by jeremysm1 View Post
From what was described in this thread, seems like it would be similar to the 7 series...see the post here as it has pictures along with the instructions: http://www.bimmerfest.com/forums/sho...d.php?t=260208

I'm going to do this myself too!
Yes - very similar, slightly different shape but same location
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  #7  
Old 11-17-2010, 08:36 AM
tampamark tampamark is online now
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I just did mine, first go to www.autohausaz.com and buy the microfilters. They are only $16 each for the OEM or $24 each for a charcoal one. If you already bought them from the dealer, well you probably paid too much.

I took a picture to illustrate the VERY simple removal of the microfilter. The housing is located directly in front of the driver against the firewall. If you open the hood, it will be basically up against the windshield wipers on both sides. The removal for each is the same. You have two steps to remove the microfilter cover - unclip on the left, then use a 13mm socket to turn the plastic screw indicated 90 degrees counterclockwise.

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  #8  
Old 11-17-2010, 09:41 AM
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pablo645 pablo645 is offline
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Great illustration tampamark. Seems easy enough to do. Thanks for sharing.
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  #9  
Old 11-17-2010, 10:08 AM
whitedesigns whitedesigns is offline
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Thanks Tampamark!!!!!

Thanks Tamapmark! I really, really appreciate your efforts. I haven't purchased the filters yet, so thanks for the great source.

You saved me some bucks, so where should I send the check?
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  #10  
Old 11-17-2010, 02:32 PM
tampamark tampamark is online now
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No worries guys, that is what this board is all about. Remember you will need to purchase qty 2 for the filters.

Make note when you take the filter out. One side has a foam "gasket". When you remove your old one just make sure you observe and put the new one in with that facing the same way. You really cannot get it to seat right if you put it in 180 degrees wrong, there is a notch on one side of the filter that matches a plastic peice on the housing. But it could be missed and since it is a paper filter could be forced in.

It is as simple as it looks!

I had my car in for an alignment and my microfilter service was due. They wanted close to $300!!!! I bought the good ones for $50 or so, free shipping. Here is the link for the 650 filter, don't know if it is different for the 645.

http://www.autohausaz.com/search/pro...ollen%20Filter
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  #11  
Old 11-17-2010, 04:02 PM
six5ohhh six5ohhh is offline
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Quote:
Originally Posted by tampamark View Post
No worries guys, that is what this board is all about. Remember you will need to purchase qty 2 for the filters.

Make note when you take the filter out. One side has a foam "gasket". When you remove your old one just make sure you observe and put the new one in with that facing the same way. You really cannot get it to seat right if you put it in 180 degrees wrong, there is a notch on one side of the filter that matches a plastic peice on the housing. But it could be missed and since it is a paper filter could be forced in.

It is as simple as it looks!

I had my car in for an alignment and my microfilter service was due. They wanted close to $300!!!! I bought the good ones for $50 or so, free shipping. Here is the link for the 650 filter, don't know if it is different for the 645.

http://www.autohausaz.com/search/pro...ollen%20Filter
YOURE THE MAN! Thanks!
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  #12  
Old 01-13-2011, 12:24 PM
AF AF is offline
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Quote:
Originally Posted by tampamark View Post
No worries guys, that is what this board is all about. Remember you will need to purchase qty 2 for the filters.

Make note when you take the filter out. One side has a foam "gasket". When you remove your old one just make sure you observe and put the new one in with that facing the same way. You really cannot get it to seat right if you put it in 180 degrees wrong, there is a notch on one side of the filter that matches a plastic peice on the housing. But it could be missed and since it is a paper filter could be forced in.

It is as simple as it looks!

I had my car in for an alignment and my microfilter service was due. They wanted close to $300!!!! I bought the good ones for $50 or so, free shipping. Here is the link for the 650 filter, don't know if it is different for the 645.

http://www.autohausaz.com/search/pro...ollen%20Filter


Thanks for posting the link to buy the filters and the pictures on how to change it.

I appreciate it !!
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  #13  
Old 01-13-2011, 02:52 PM
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great suggestion... thanks for the detailed advice!
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  #14  
Old 01-15-2011, 01:01 PM
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Thanks for the info, just ordered mine today. The Stealership almost got me!
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  #15  
Old 01-15-2011, 06:09 PM
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I wouldn't even replace them, try vacuuming them and the compartment. Replace only if really soiled.
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  #16  
Old 01-16-2011, 12:53 PM
name here name here is offline
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How do you reset the message that it is due?
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  #17  
Old 01-16-2011, 06:35 PM
tampamark tampamark is online now
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The service reset is very easy. Yorgi has a nice writeup in a DIY thread for brakes with detailed pictures. Make sure you go all the way down to step 5 of the reset procedure to see the icon for the Microfilter.

http://www.bimmerfest.com/forums/sho...81#post5723681

Also, here is a video from a 5 series, it is the same in our car so this video is a great illustration of the exact process. Note that if you pause too long between clicks on the Odometer button it exits out and you start over. You will get the hang of it:

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  #18  
Old 04-22-2011, 07:29 AM
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EmM HoLLa EmM HoLLa is online now
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I succesfully completed this DIY yesterday.. Thanks guys..

Also to put the car in ignition 3 mode.. Insert the key but do no depress the break.. All the lights will light up and thats how you can reset the iDrive intervals..


Thanks again..
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  #19  
Old 05-06-2011, 11:33 AM
T-Cat T-Cat is offline
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I agree with PIXL; changing the microfilters every two years, especially on a convertible, is nuts.

Followed the excellent video on reseting the Service Indicator lights. Successful with the inspection alert but screwed up filter alert by not pressing and holding the odometer reset button. No longer get the Reset? option. Instead, I get a series of coded messages in the display window. Anyone else with this problem?
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  #20  
Old 05-06-2011, 08:24 PM
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  #21  
Old 05-10-2011, 11:35 AM
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Quote:
Originally Posted by T-Cat View Post
I agree with PIXL; changing the microfilters every two years, especially on a convertible, is nuts.

Followed the excellent video on reseting the Service Indicator lights. Successful with the inspection alert but screwed up filter alert by not pressing and holding the odometer reset button. No longer get the Reset? option. Instead, I get a series of coded messages in the display window. Anyone else with this problem?
You held the odometer reset button too long if ended up in the diagnostics mode with the German/coded messages on the screen. Once you go into diagnostics mode you have to remove and re-insert the car key to start over.

First make sure the ignition is on (press the Engine Start Button until the warning lamps light up in the top of the instrument cluster).
Then hold the odometer reset until you see the first service symbol (about 1 or 2 seconds after the triangle).
Then let go and start repeatedly pressing the odometer reset to cycle through the symbols.
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Last edited by Yorgi; 05-11-2011 at 05:22 PM. Reason: typo - laps vs lamps
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  #22  
Old 05-11-2011, 11:45 AM
LyfeIs LyfeIs is offline
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This thread should be moved to the DIY section. I too spent quite some time looking for a way to access these filters.

There is a slight odor that comes into my car when the AC is first turned on. I was going to have the dealership look into this the next time I took it in for service. Being out of warranty, this wouldve come out of pocket at $$$/hr. Thanks to you guys, I now know a way of digging a bit deeper into this issue without getting them involved. I'm almost certain this is where the odor resides.
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  #23  
Old 11-07-2011, 12:22 PM
Kansas Corey Kansas Corey is offline
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So just wanted to bump this to the top with some additional commentary.

I consider myself fairly handy with DIY things and I have to be honest, this was soooo easy that it was almost unsatisfying... Seriously, it took maybe 5 minutes and that's becuase I was bored and took my time...

There are basically 2 threads on this subject:
  1. This one your reading
  2. Here is the other: http://www.bimmerfest.com/forums/sho...ht=microfilter
Both are correct and accurate. I would say that TampaMark's photo in both posts (and shown below for anyone feeling lazy right now) shows everything you need to know to change these out. He also provides a link to AutoHaus website for the filters. I can confirm that my searching lead me to the same conclusion - they have the lowest prices. I went for the active charcoal version and had to throw a few more things into the shopping basket to get "Free Shipping on orders over $50"

Regarding how to reset the service indicator, there are several explanations on both of these threads. Of course, to be different, I used Yorgi's explanation from his oil change DIY here: http://www.bimmerfest.com/forums/sho...ght=oil+change only becuause I liked his pictures. Again, this took probably 3 minutes to read twice and less than 1 minute to do.

If you are out of warranty, don't pay the dealership to do this. You'll spend more time placing the order for these than actually installing them. Save your money and spend it on something better.

Good luck! Corey
Quote:
Originally Posted by tampamark View Post
Go to www.autohausaz.com and buy the microfilters. They are only $16 each for the OEM or $24 each for a charcoal one.

I took a picture to illustrate the VERY simple removal of the microfilter. The housing is located directly in front of the driver against the firewall. If you open the hood, it will be basically up against the windshield wipers on both sides. The removal for each is the same. You have two steps to remove the microfilter cover - unclip on the left, then use a 13mm socket to turn the plastic screw indicated 90 degrees counterclockwise.

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  #24  
Old 11-25-2011, 09:02 PM
63olly 63olly is offline
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Thanks to Tampamark and the rest for your input on microfilter parts source and the filter change. Task went off perfectly - smooth and easy. One minor note, on my 645 I had to use an 8mm hex wrench instead of the 13mm socket on the retaining screw.

Last edited by 63olly; 11-25-2011 at 09:04 PM. Reason: spelling
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  #25  
Old 11-26-2011, 09:41 AM
tampamark tampamark is online now
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Thanks for the additional input, that is really good to know. There seem to always be some subtle differences between the 645 and 650 models.
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