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  #1  
Old 05-22-2004, 10:43 PM
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1994 E320, Replacing ACC Cabin Filter - What's The Trick?

Time to put in a new cabin filter on the wagon (1994 E320). I did it myself two years ago and remember that it was a real pain. Nothing too challenging, but lots of screws and various pieces to remove and then put back... quite a drag compared to the ease of replacing the same part on the W202.

Is there some trick that I'm not getting?
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1988 300 SL (5 Speed)
1994 E320 Wagon
1997 C230
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Old 05-23-2004, 03:02 PM
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I don't think there's a trick to it.

You have to remove the wiper arm assembly and motor to get to it.
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2001 E430, Bourdeaux Red, Oyster interior.
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1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
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  #3  
Old 05-24-2004, 03:43 PM
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Hey thanks man. That makes me feel better.

If anyone's interested, while this this job is a pain, as far as I can tell, it does not require removing the wiper assembly and motor (more like various bits next to the wiper).
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1994 E320, Replacing ACC Cabin Filter - What's The Trick?-cabin-filter.jpg  
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Michael

1988 300 SL (5 Speed)
1994 E320 Wagon
1997 C230

Last edited by Michael K; 05-24-2004 at 05:22 PM.
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  #4  
Old 05-24-2004, 06:15 PM
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Mike

Wow, I bet it felt like you had a new blower motor in the car after replaing those filters! I have yet to see them that thick.
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  #5  
Old 05-24-2004, 10:13 PM
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Lucky for our wagon, just to illustrate what needs to come apart, that picture is a copy from another post within this site. Damn I love the simplicity of routine maintenance on these cars, BUT the 124 cabin filter sucks.

The last time I replaced the wagon's cabin filter, it was pretty gross, but it was not nearly that bad. I'll put up a picture of what it looks like after two years of DC air.
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1988 300 SL (5 Speed)
1994 E320 Wagon
1997 C230
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Old 05-25-2004, 09:27 AM
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Assuming the '94 is same as my '95, you do not have to remove the wiper arm assembly to replace the disks.

Stu Ritters E-Class (124) Owner's Bible has a pretty good description of how to do it.

Still a pain in neck.

Allan
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Old 05-25-2004, 09:30 AM
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Don't know what kind of brain cramp was going on in my previous reply when I talked about replacing the "disks".

Obviously, I meant filters.

Allan
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  #8  
Old 05-25-2004, 10:51 AM
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Cool. Thank you. So everyone can see it, do you feel like posting a scanned copy?
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1988 300 SL (5 Speed)
1994 E320 Wagon
1997 C230
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  #9  
Old 05-25-2004, 11:49 AM
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http://aa.bosch.de/advastaboschaa/Product.jsp?prod_id=91&ccat_id=37&language=en-GB&mtype=P&publication=1&flash=


Go to this link (Bosch site).

At the bottom of the page select "vehicle specific installation".

Then "Mercedes E Klasse up to 6.1995"

You'll then have a 3 page PDF document with some diagrams that will be helpful (after you have increased the size of them).

To get you started:

- pull off seal between windshield and water drain up to the wiper arm. Fold it around the wiper arm to keep it out of the way.

-pull off the lip seal that runs across the entire cowl just under the water drains

-remove the lip seal which runs across the entire engine department forward of bulkhead.

Then refer to the Bosch diagrams for removal of the plastic trim, water drains and filters, which pull out towards the drivers side of the car.

The Bosch page estimates 20 minutes. Maybe, after you're done a few. The hardest part will be geeting the two filters to "mate up" in the tongue and groove.

I would scan the pages from Stu's book but am sure would be violating all sorts of copyright laws.

Allan
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  #10  
Old 05-25-2004, 12:01 PM
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Careful as I was, when I replaced the cabin air filters on my E320, I broke a number of plastic tabs at the filter holder and the plastic trim that the long underhood seal mounts on. So much for quality!
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  #11  
Old 05-25-2004, 02:21 PM
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Hey thanks man. Super helpful.

The Bosch instructions seem correct to me with one MAJOR exception.... no way this takes me twenty minutes - more like an HOUR.

Their use of international symbols is funny and almost complete ... if only they had one to express frustration that, upon completing the job, that turns into a quiet satisfaction...maybe a half frowning/half smiling face with a half-smoked cigar and two empty beer bottles in the background.

True about Mr. Ritter, but, for such a good cause, I'm sure he'd understand.

Thanks again and best regards,
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1988 300 SL (5 Speed)
1994 E320 Wagon
1997 C230
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  #12  
Old 06-01-2004, 12:01 PM
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So I did the job and highly recommend no more than a two year change interval (keep in mind tons of trees around our house).

The filters were cruddy but not solid black. More like gray with lots of broken up tree leaves, needles, etc. stuck in the grooves.

The job IS a pain, but having the necessary bits apart is a good chance to clean up the whole area.

Hope all this information helps someone. Best regards,
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1988 300 SL (5 Speed)
1994 E320 Wagon
1997 C230
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  #13  
Old 12-16-2005, 11:58 AM
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Spare Filters

FWIW, In my experience this is was pretty straightforward procedure.

When I ordered my filters from Phil, we weren't sure whether the filters were one or two to a box, so I ordered two boxes. There are two to a box, so I have an extra set. Phil sent me an RMA, but I'd just as soon send it to you, if you want it.

Make me an offer, plus shipping
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  #14  
Old 03-12-2010, 04:15 AM
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Old Bosch link no longer works, this one does:

Old Bosch link no longer works, this one does:

http://www.boschautoparts.com/Technical%20Resources/Cabin%20Air%20Filters/CabinAirFilterInstallation.pdf

P3631 filter for the 94 and 95 E320 (just hit ctrl+F and type in 3631 and enter, it will take you right to it; has good illustrations)
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