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    Thread: Cleaning the Snow Screens in the Phaeton Air Intake [TOC, Photos done]

    1. Senior Member PanEuropean's Avatar
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      11-27-2008 01:33 PM #51
      Suggest to the dealer that he look in the VW electonic parts catalog, at the illustration that shows the air filter plenum. The snow screen will be illustrated there. VW parts catalogs are identical all over the world - even if you took the car to a VW dealer in the middle of the Sahara desert, or in Death Valley, CA, they would see the snow screen on their parts catalog display.
      In the meantime, here is a picture of a snow screen from a W12. The part number is visible (upside down) in the middle. This should help the dealer get close to the part number of a snow screen for a Phaeton with your engine type in it.
      Michael

    2. 03-22-2009 02:45 PM #52
      First, I have carefully read the thread in the TOC on this subject, but have a few questions.
      When removing the three engine compartment shrouds around the W12 engine, one must remove six screws. What specific tool is required to do this? (I must admit to not being very mechanical, and don't own a lot of tools. I damage fewer of my possessions this way.)
      Next, my 2006 has the BRP engine. Does anyone know if the component layout/procedure is different in any meaningful way from the BAP engine?
      Also, the car is 4 years old, with 27k miles. So the last major service was at 20k miles. Before tackling the snow screens, would it be worthwhile to order a pair of air cleaner elements, and swap the old ones out "since I'm in the neighborhood?" I suppose the answer is, take a look at the condition of the current ones, but it seems a good idea to have a replacement pair on hand. Thanks much.

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      03-22-2009 04:13 PM #53
      The screws securing the covers are of the Torx variety. I don't know what size off the top of my head. If you don't have these tools, you can buy a set at any auto parts store, walmart, etc.

    4. Senior Member PanEuropean's Avatar
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      03-22-2009 06:08 PM #54
      Hi Ken:
      As Jeffery pointed out, you need a 'Torx' screwdriver. This is a reasonably common specification of screwdriver for European cars. 99% of the Torx fasteners on the Phaeton use only 3 Torx bit sizes. I can't recall offhand what the sizes are, but if you ask a VW technician, they would be able to tell you. I suggest you buy one conventional 'screwdriver' for each of the 3 common sizes, and then a set of bits that cover all 12 Torx sizes to cater to the last 1%. Total capital cost = about $25.
      The BRP is functionally identical to the BAP. The only significant physical differences are a different shape of intake manifold on the top (this is primarily a styling and design issue) and a different oil pan at the bottom. There are numerous small improvements, but nothing that would be visible to us to or affect work we would do as a DIY owner.
      If the last service was done only 7,000 miles ago, I cannot see any benefit at all to replacing the air filter elements. Air filters are replaced on a schedule that is strictly mileage based, in other words, the filters do not deteriorate based on calender time. I think it would just be a waste of money to replace them simply because you are in there anyway. What you could do is gently vacuum the dirty side of the filter with a domestic vacuum that has a brush attachment. Don't blow them out from the clean side with high pressure air (meaning, air with a pressure higher than you would get out of a household hair dryer) or you will damage the paper and this will render the filters inoperative. You could, I suppose, gently blow some air though them from the clean side with a household hair dryer, but honestly, I think that just vacuuming the dirty side is more than sufficient.
      Michael

    5. 03-22-2009 10:39 PM #55
      Michael,
      Thanks very much. I look forward to my "spring cleaning."

    6. Senior Member PanEuropean's Avatar
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      03-23-2009 12:13 AM #56
      Hi Ken:
      Below is a picture of a 'bit set' that I purchased about 4 years ago. I believe it cost about $90, but it has been an extraordinarily useful set of tools to have - it is the equivilent of having 115 different screwdrivers.
      If a bit becomes damaged from use, it is very easy to purchase a single replacement bit, or a pack of 3 (identical) replacement bits. Another advantage of a bit set like this is that because the exact specification for each bit is engraved on the side of the bit, you can find out what sizes you most commonly use (for example, the Torx 20 is very common on the Phaeton), and then go to a store to buy a conventional Torx 20 driver without wondering whether or not you are buying the correct specification tool.
      Michael

    7. Junior Member Phat One's Avatar
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      08-05-2009 01:22 PM #57
      Here are a couple of pix of my dirty snowscreens. You can see the difference. I noticed an improvement in MPG afterwards.
      Graham
      (images resized by Michael, post content untouched)


      Modified by PanEuropean at 2:26 PM 11-16-2009

    8. 11-16-2009 04:31 PM #58
      Hi Michael,
      just found this great article. I was totally surprised by the fact, that you guys got a much better Version of the Airfilterboxes (Snowscreen, relief valve, saturation indicators) than we are allowed to have in our Phaetons... Do you or anyone else know the prt-number or where to get those? Would like to have them in my german based Phaeton, too. Because those frozen snow partikles we got also in Winter and a saturation indicator is a very good thing to have in my opinion. [IMG]http://**********************/smile/emthup.gif[/IMG]
      Breetings, Ron

    9. Senior Member PanEuropean's Avatar
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      11-16-2009 05:29 PM #59
      Hello Ron:
      When Phaetons are built, there are some minor differences in construction depending on whether or not the vehicle is destined for a "cold country" (for example, North America) or whether it is destined for a "warm country" (for example, Southern Europe).
      It is possible that when your car was built, it was originally destined for a warm country, and therefore did not get snow screens fitted.
      You can investigate this further by reviewing the post entitled Understanding Phaeton Production Codes & Build Stickers , then downloading the PDF that is there and decoding the build sticker on your vehicle.
      Michael

    10. Senior Member PanEuropean's Avatar
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      02-18-2010 06:58 AM #60
      Archival Note: Related post - air filter service gauges

    11. Senior Member PanEuropean's Avatar
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      10-14-2010 07:33 AM #61
      Here is a PDF from the Phaeton repair manual that explains the tasks to be carried out in order to replace the engine air filters on a W12 Phaeton. The concepts are similar for other engines.


      Double-click on the thumbnail to open the PDF at full size.

      Michael
      Attached Files

    12. Member Auzivision's Avatar
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      10-14-2010 11:43 AM #62
      Brings back memories from the headlight project I completed last night. Just a word of caution when 'unsnapping the press studs in diagram NO2-003 items number 4 & 5, be careful if using any sort of pry tool.

      On one side, these unsnapped no problem using my hands only. The other side wasn’t giving in and I used a screw driver to pry it open. Unfortunately, the wrong two pieces separated and I found myself needing to repair the snap button with a center punch afterwards.

    13. Member johnt26's Avatar
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      12-26-2010 03:51 PM #63
      Hey All,
      This is a great thread!
      My Air Filter indicators have been in the red since I bought the car a few weeks ago (I reset them, they returned to "red").
      Using the instructions and tips in this thread I was able to easily remove the snow filters and clean them, some observations:
      -I have no basis but I'm thinking that they have never been cleaned. They were black and full of sand and other debris. The car spent time near the beach and brought of bunch of beach home.
      -Take a look at the intakes while you are in there, I had a fairly large piece of styrofoam in one.
      -I have one "dusty area" air-filter and one "non dusty area" filter, I'll rectify that at my first oil change.
      -Cleaning the snow filters is a nice way of getting acquainted with the air box areas for oil filter changes, headlight bulb replacement and spark plug replacement, all of which are upcoming in my car.
      I'm sure the car will run even better and be more economical now that it can breath through it's proper "nostrils"!
      Thanks to all those who contributed to this thread (especially Michael and Paul); it made this job easy!
      Last edited by johnt26; 12-26-2010 at 05:35 PM.
      John
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      VAS 6262 DSG Oil Change Tool for DSG equipped VW Products available also.

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      12-31-2010 04:00 PM #64
      I just finished changing the low beam bulbs and was surprised by the amount of debris that had accumulated since they were changed a year ago. Most of the material was insect parts and the driver's side had a lot more than the other screen. There was no red dial showing but clearly there was enough to restrict air flow. Being in Kansas perhaps is the reason for the bug debris? Thanks to all who contributed to the link(s) on changing out the low beam bulbs. The information really helped!
      Happy New Year to all!!
      daves

    15. Member sjglaser's Avatar
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      01-14-2011 08:01 PM #65
      Hello All,

      Thanks to the excellent postings regarding changing out bulbs and claening out snow screens, I went ahead today and changed out the air filters/cleaned snow screens on my V8 - no problems.

      But, when it came to my W12 when I finally removed the filters, I realized that the snow screens were not there! I recently acquired this car and I have been gradually addressing all the minor (and major - ie torque converter) issues the car has...

      The favor I wish to ask is whethe someone can guide me to the part numbers for the snow screens? I tried navigating around 1stVWparts.com to no avail

      Thanking all in advance,

      Steve

    16. Senior Member PanEuropean's Avatar
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      01-15-2011 10:31 AM #66
      Hi Steve:

      When VW builds cars, they apply slight construction variations to the vehicle depending on what region of the world the car is destined for. If your Phaeton was originally destined for a 'warm climate' area, it would not have been equipped with snow screens. Likewise, if it was destined for a 'cold climate' area, it would have been equipped with snow screens and also filled with coolant that offered a greater level of freeze protection than normal.

      I tried looking on page 129-60 of the VW Parts Catalog (this shows the air cleaner assembly for the W12 engine Phaetons), and could not find the snow screen there. This is a bit surprising, because that is where I would expect the thing to be - it fits inside the air cleaner.

      I bet that if you go visit a VW dealership and talk to the Parts Specialist there, they will be able to find the snow screen for you in the parts catalog, and order it. If you don't have any success with this, wait about a month (until I get back to Canada - I am in the Seychelles Islands now) and I will have a look at the snow screen on my own Phaeton and see if it has a part number embossed on it. It's probably time for me to clean them now...

      Michael

    17. Senior Member PanEuropean's Avatar
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      01-15-2011 10:44 AM #67
      Steve:

      Below is an enlargement of a part of a picture of a snow screen taken from the first page of this post. It appears that there is a number 848 108 7 embossed on it. This doesn't really sound like a Phaeton part number (Phaeton part numbers usually start with 3D0), but if you print this photo and take it to your VW Dealer Parts Specialist, it will probably help them find the part for you.

      Michael

      (double-click on the thumbnail to enlarge it)
      Attached Images

    18. Member sjglaser's Avatar
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      01-15-2011 01:08 PM #68
      Michael

      Thanks a bunch for researching this issue... I will print out the photo with the partial numbers and go to my dealer's parts specialist...

      Steve

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      01-21-2011 03:36 PM #69
      Quote Originally Posted by PanEuropean View Post
      Steve:

      Below is an enlargement of a part of a picture of a snow screen taken from the first page of this post. It appears that there is a number 848 108 7 embossed on it.
      Michael

      (double-click on the thumbnail to enlarge it)
      I looked at the snow screens I removed from my V8 and one of them had the same number as the one from Michael's W12. The other one had a number 848 124 4. Don't know which one was right or left side. Looks like the V8 and W12 use the same screens. You could fit check, since it looks like you have one of each. If they are the same, you can have my slightly used (1yr) screens for the price of postage.

    20. Member sjglaser's Avatar
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      01-21-2011 08:07 PM #70
      Quote Originally Posted by Fighterguy View Post
      I looked at the snow screens I removed from my V8 and one of them had the same number as the one from Michael's W12. The other one had a number 848 124 4. Don't know which one was right or left side. Looks like the V8 and W12 use the same screens. You could fit check, since it looks like you have one of each. If they are the same, you can have my slightly used (1yr) screens for the price of postage.
      Thank you! That is very kind.... please PM me with estimated postage, address, etc and I'll send you a check along with my mailing address.

      Regards

      Steve

    21. Junior Member Sarmale89's Avatar
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      02-09-2011 11:47 AM #71
      Quote Originally Posted by PanEuropean View Post
      Zaph:
      The upper portion of the airbox is very difficult to remove (due to extremely tight tolerances all around it) on the W12. It is possible that the same might be true on your car.
      FYI, you have to remove the big round tube that carries the filtered air into the engine before you attempt to remove the upper portion of the airbox cover. You won't get anywhere as long as that tube is attached. In practice, you have to disconnect that big tube at both ends (airbox and where it connects to the engine, typically at the MAF, or Mass Airflow Sensor) and then remove it and set it aside.
      Michael
      Any advice on how to remove the plastic air intake hose? I've been trying for some time and cant seem to get it off. I'm using channel lock pliers to release the metal clamps and get the hose most of the way off of the engine side, but can't get get the air box side of the hose to move very much. I don't want to use too much force as I'm afraid of breaking something.

      Bobby

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      02-09-2011 12:00 PM #72
      Quote Originally Posted by Sarmale89 View Post
      Any advice on how to remove the plastic air intake hose? I've been trying for some time and cant seem to get it off. I'm using channel lock pliers to release the metal clamps and get the hose most of the way off of the engine side, but can't get get the air box side of the hose to move very much. I don't want to use too much force as I'm afraid of breaking something.

      Bobby
      Never mind. Just got it off. FYI for everyone with a W12, you really have to compress the accordion-looking part of the hose to get it off. I did this by grabbing the hose firmly with both hands at the air box side and pushing away from the air box, thus compressing the hose.

      Bobby
      Last edited by Sarmale89; 02-09-2011 at 06:33 PM.

    23. Junior Member Sarmale89's Avatar
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      02-09-2011 06:01 PM #73
      I successfully removed my drivers side air box lid and cleaned the snow screen. I am having trouble, however, getting the lid on the passenger side off. It appears that the presence of a coolant hose is preventing me from lifting the lid out. I see, though, that the VW repair manual doesn't ask you to remove the coolant hose. Also, it appears that Michael's hose is attached in the last picture on the opening post on this thread. How do i get this darned thing off?!?

      My Hose Problem


      Bobby
      Last edited by Sarmale89; 02-09-2011 at 06:32 PM.

    24. Senior Member PanEuropean's Avatar
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      02-10-2011 09:51 AM #74
      See instructions overlaid on the picture below - click on the picture to enlarge it.

      Michael

      Cooland Hose - Air Box.jpg

    25. Junior Member Sarmale89's Avatar
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      02-10-2011 10:33 AM #75
      Quote Originally Posted by PanEuropean View Post
      See instructions overlaid on the picture below - click on the picture to enlarge it.

      Michael

      Cooland Hose - Air Box.jpg
      Michael,

      Thanks for the further clarification! I figured out the clip release last night and actually managed to get the lid out and then back in without disconnecting the hose. Though I must admit, it was mighty tricky getting it out and back in.

      On a related note, my left saturation indicator read 100% and indeed had a filthy snow screen, which i cleaned. The right side's indicator, however, wasn't even red. I cleaned he filter and snow screen nonetheless. I thought this was kind of odd that one side would be clogged and the other relatively clean.

      Also, loosening the hex nut that secures the lower plenum to the fender helped me a great deal in installing my dual xenon headlights. With the lower plenum (air box) loose, i could wiggle the headlamp into place MUCH easier.

      Bobby

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