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    Thread: Wiper Mechanism Mechanical Failures [TOC, Photos done]

    1. Member udaymohan's Avatar
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      10-24-2011 03:55 PM #36
      Would anyone know which fuse drives the passenger side wiper motor?

    2. Member WillemBal's Avatar
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      10-24-2011 05:00 PM #37
      Quote Originally Posted by udaymohan View Post
      Would anyone know which fuse drives the passenger side wiper motor?
      Fuse 20 in the E-box.... Rating is 20 Amps. This fuse is located in the right air intake plenum chamber. To get there, wipers need to be removed, air intake cover and the plastic weir which is running right under the entire width of the windshield. This part is easy to recognize as the two wiper spindles are sticking through this part.
      Quite a job to replace just one fuse, to be honest!

      Willem

    3. Member udaymohan's Avatar
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      10-25-2011 09:56 AM #38
      Quote Originally Posted by WillemBal View Post
      Fuse 20 in the E-box.... Rating is 20 Amps. This fuse is located in the right air intake plenum chamber. To get there, wipers need to be removed, air intake cover and the plastic weir which is running right under the entire width of the windshield. This part is easy to recognize as the two wiper spindles are sticking through this part.
      Quite a job to replace just one fuse, to be honest!

      Willem
      Good Lord...that is a fair bit of work to do simply to replace one fuse...or determine if it has indeed blown.

    4. Senior Member PanEuropean's Avatar
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      10-25-2011 01:33 PM #39
      Uday:

      Normally, one uses a diagnostic scan tool to determine if the fuse is blown or not. The scan will report if the fuse is blown... no dis-assembly is necessary.

      Michael

    5. Member udaymohan's Avatar
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      10-25-2011 04:34 PM #40
      Quote Originally Posted by PanEuropean View Post
      Uday:

      Normally, one uses a diagnostic scan tool to determine if the fuse is blown or not. The scan will report if the fuse is blown... no dis-assembly is necessary.

      Michael
      This is a valid point

    6. Semi-n00b
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      02-25-2012 05:06 PM #41
      Could someone repost pictures?
      thx

    7. Member WillemBal's Avatar
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      03-04-2012 06:09 PM #42
      Michael post #1 of this thread with original pictures:

      Hello Everyone:
      There have been a few reports recently of failures due to corrosion within the mechanism that operates the windshield wipers. As most of you know, the Phaeton has two entirely separate and completely independent wiper mechanisms – one for each side of the windshield – thus it is possible for one side to fail and the other side to continue to operate. Unfortunately, unless the side that fails happens to be in the ‘parked’ position when it fails, the remaining functional wiper blade will foul against the failed blade, so the outcome is the same – no windshield wipers.
      The failure appears to be caused by the round shaft that the wiper arm attaches to corroding within the aluminum (or other ‘white metal’) casting that contains it. There is an o-ring at the top of the round shaft where it enters the casting, and a bushing at the bottom, but it seems that liquid is somehow managing to get past these seals and into the middle of the casting. If you drive in an area where roads are salted in the winter, this water will contain salt, and the eventual result will be corrosion. As the ferrous metal shaft corrodes, friction within the casting increases, and eventually the fuse for the affected side wiper motor will blow. When the fuse blows, the wiper stops ‘wherever it may be’, and that is the end of your driving in the rain.
      I am going to advise our friends in Dresden about these failures (my VW dealer has encountered three different Phaetons with this kind of failure this year, including my car), and perhaps they can come up with some kind of test based on wiper motor current draw that we can use to determine if a problem is developing, for the purpose of taking action before the sudden failure. I think that the probability of encountering such a failure is directly linked to the amount of salt or brine that is used on your roads during the wintertime, how long winter lasts in your area, and how much you drive in the winter. In other words, I kind of doubt if Don in Scottsdale will be affected, and at the other end of the scale, I think there is a high probability of failure for cars registered in the Province of Quebec.
      The purpose of this post is to provide a little background on the failure, explain what happens, and provide some guidance to technicians who have to replace the mechanism.
      Below is a photo of a Phaeton showing what it looks like after the fuse blows on the passenger side wiper. The wiper stops dead wherever it may be when the fuse blows, and typically, this will interfere with the operation of the remaining (functional) wiper. This is Chris’s car.
      What it looks like when the fuse blows



      I suppose if you just happened to have a spare fuse handy, you could wait a few moments for the wiper motor to cool down, then put the spare fuse in, and you might get a few more wipes before the spare fuse blows. For all practical purposes, though, once the fuse blows, you are toast... the corrosion has caused the mechanical load on the motor to reach a point where the current required to operate the wiper is excessive, and the only solution is to replace the wiper mechanism. It is not uncommon for both of the blades to be damaged as a result of the fouling of the remaining functional wiper blade against the failed wiper blade, thus, you will probably need to replace both blades as well.
      Below is an illustration that shows the left and right side wiper blade mechanisms. Normally, these parts are not visible, they are covered up by the cover that goes over the air intake plenum, aft of the engine. These assemblies consist of the motor, the casting and linkages, and a few nuts and bolts.
      The motor itself is usually unaffected by the failure (the fuse protected it), thus the part you need to replace is the casting and linkage.

      Left and right side wiper drive mechanisms

    8. Senior Member PanEuropean's Avatar
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      04-10-2012 03:23 PM #43
      Photos on page 1 rehosted.

      Michael

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      04-10-2012 04:16 PM #44
      Hi Michael,

      Happy to see you again.

      Was anything decided concerning your thousands of photos ? Needing to rehost them every xx months is such a waste of your precious time and energy...

      Once more, none of the photos I put for free on photobucket since many years ago has ever disappeared or been removed by photobucket. Why don't you use photobucket ?

      I'm not affiliated with photobucket, and there are probably other sites that offer the same kind of service. I'm only advocating this site because I have experienced that none of the photos I put on it ever disappeared.

      P.

    10. Senior Member PanEuropean's Avatar
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      04-10-2012 04:22 PM #45
      Hi Pierre:

      I do use Photobucket now. In the past, I used two 'Volkswagen specific' photo hosting sites (HostDub and later a site operated by OEM Plus) that have now shut down.

      I have an account with Photobucket, costs about $50 a year (a free account won't support the bandwidth needed by the forum), I will use that in the future for all photo hosting, including re-hosting.

      Michael

    11. 05-24-2012 01:11 PM #46
      Where would i buy the replacement bracket with operating rod and crank arm from and recommendation ?

    12. Senior Member PanEuropean's Avatar
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      10-02-2012 09:58 PM #47
      Here is some additional information about how the windshield wiper system on the Phaeton is controlled:

      Pheaton Windshield Wiper System - Description and Overview

      Some information for decoding the diagrams:
      CAN means Controller Area Network.
      30 means terminal 30, which is battery supply voltage.
      31 means terminal 31, which is ground.


    13. Senior Member PanEuropean's Avatar
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      10-02-2012 10:02 PM #48
      Last edited by PanEuropean; 10-02-2012 at 10:07 PM.

    14. Member udaymohan's Avatar
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      11-06-2012 06:52 PM #49
      Hi Everyone,

      As you all may recall a while back my passenger side wiper had stopped working. Turned out it was due to the corrosion that has been outlined in the post earlier.

      Well I experienced another wiper failure, only this time it's on the driver side. Now one major difference between two incidents is that while the passenger wiper had failed I could still operate the driver, headlight washers and windshield washer.

      In this instance I am unable to utilize anything, one could argue that it may be a safety feature to prevent the passenger wiper from smacking in to the stuck driver but not sure.

      Any checks I can do before heading it back to the shop, or would this be pretty much the same issue only on the driver side.

      As usual your input is always welcomed and appreciated.

      Thanks
      Uday

    15. Senior Member PanEuropean's Avatar
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      11-07-2012 02:51 AM #50
      Hi Uday:

      My guess is that the passenger side wiper is a slave (subordinate) to the driver side wiper, and as a result, the control module will allow the driver side wiper and other wiper-related elements to continue to work if the passenger side wiper is not in the appropriate position, but not the other way around.

      The replacement process is more or less the same for both wiper arm pantographs. While you are having this done, clean out the air intake plenum at the same time, because it is really easy to get access to that plenum once the wiper arm assembly has been removed. See this post for more information about cleaning out the plenum: Cleaning Air Intake Plenum and Sunroof Drains.

      Michael

    16. Member udaymohan's Avatar
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      11-07-2012 08:41 AM #51
      Thanks Michael, figured there was some logic to the behavior.

    17. Member udaymohan's Avatar
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      11-27-2012 02:20 PM #52
      Well same issue as the passenger side, part replaced, fuse replaced, visibility restored

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      12-08-2012 02:26 PM #53
      Hi,

      are there any "pre"signs of this problem? Anything I can see while operating the wipers so I can check my "wiper health" without taking everything apart?

      Mine is a MY 2006, and we have -11°C in Austria in the mountains right now. Unfortunately I don't have a garage or anything else warm nearby to take my wiper system apart.

      Since I am going to drive at least 5000 to 6000km over christmas (Austria-Germany-Denmark-Sweden ...) I would like to find out about any problems in my wiper system. As you can imagine I absolutely don't want to get forced to stop in the middle of nowhere in an snow storm because my wipers aren't working.


      Thanks in advance,

      greetings from Austria,


      Alex

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      08-20-2013 11:32 PM #54
      2006 V8 bought off a lease in Spokane in 2009

      As always, thank you so much to Michael for all the info and the best pics. My RH failed in the snow about Feb.

      I found 2 units with motors and linkages on a 2005... front end damaged 2005 and bought the total motors and linkage from the 2005. They work fine.

      After working through your great pics and a gear puller to remove the RH wiper(totallly corrorded onto the spindle), then a little help from my Windshield replacement tech(it does take a LOT of force to bring up the plenun from the windshield)....The second time will be so much easier!!

      Used masking tape to mark the wiper points on the windshield in the maintanance/service position and then did a fine tuning adjustment to get the resting points.

      Michael, thank you so much again from one of the few owners in YEG

      Dan

      BTW, does anyone need the functional LH unit or the motor for the RH unit(needs a new linkage)?

    20. Senior Member PanEuropean's Avatar
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      08-21-2013 11:35 AM #55
      Hi Dan:

      I'm happy to hear that the info here on the forum was helpful to you.

      Now that you are familiar with what is down inside that air intake plenum, you might want to consider carrying out this preventative maintenance work before the summer is over and it gets cold out:

      Water in Cabin Footwell (Cleaning Air Intake Plenum and Sunroof Drains)

      Regards,

      Michael

    21. Junior Member
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      10-09-2013 05:20 PM #56
      This happened to my 04. Driver side mechanism seized. I managed to get a wiper transmission with motor on ebay for 75 US. Took about 40 minutes to remove and replace!

    22. Member
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      10-19-2013 04:57 AM #57
      I also had the same problem, and fixed it by lubricating the pin first with a rust remover and after that with wd40. After that I sealed it with grease. I didn't remove the whole wiper. Just sprayed with the different solutions.

      Jorg

      Posted via Topify using Android

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      12-16-2013 11:17 AM #58
      This morning was very cold -32 deg C, my wife went out the car and one wiper was in the up position, I drove the car yesterday and did not use the wipers. She has not touched anything (she is afraid to try them). Has anyone experienced this? What would have triggered it to come up in the cold? Should she try the wipers to see if they reset?
      Thanks all
      Rob

    24. Senior Member PanEuropean's Avatar
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      12-16-2013 11:36 PM #59
      Hi Rob:

      I don't think anything would have "triggered the wiper to come up in the cold", however, if one wiper arm was frozen in position, the other one could still work, because each side is mechanically independent of each other.

      My suggestion is that you just press the wiper control stalk down once, and see if that resets both wipers to the park position. If not, try putting the car inside a heated garage overnight, then activating the wipers again after everything has had a chance to thaw out.

      Michael

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      12-17-2013 10:19 AM #60
      Hi Michael

      We did just that, brought the car in and thawed it out, wiper went back down on its own by morning. I went out and tested them and they worked fine. Kinda weird but mechanicals do weird things in the cold. Thanks for your help and Happy holidays to everyone!

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      12-17-2013 11:40 AM #61
      A transistor that became superconductive due to the cold might be the culprit

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      01-17-2014 09:34 PM #62
      Michael mentioned in the post about corroded wiper assemblies that:

      If you are successful in getting both of the wiper blades up to the ‘change blades’ position, great... this will save you quite a bit of time later on. If the new fuse blows and the problem blade won’t move, this is not a big problem, I’ll explain how to deal with it later.

      Well I replaced the passenger side assembly and was not able to get the wipers into the "replace blade" position.

      I now and not able to get the passenger side wiper to sync with the drivers side and I could not find where Michael followed up with the "how to fix it part".

      Any help would be appreciated.

      Thanks,

      Paul

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      01-18-2014 08:13 AM #63
      I must admit I did not read all of Michaels post and he may have addressed it

      I did discover how to fix it.

      When I replaced the motor on the assembly is it made a difference what the position of the arm was in as I bolted the piece to the motor would make a difference. IT DOES.

      I went back out and removed the nut where the arm attaches to the motor and then put the wipers in the "replace mode/position". I rotated the arm to the wiper up position but not all the way. I tightened the nut to the motor and the wiper where I thought is should be in the "replace" position.

      The wipers worked fine, but I then had to remove and replace the wiper arm assembly until it rested in on the windshield in the correct spot for the down position.

      Hope that might help someone else.

      Thanks,

      Paul

    29. Moderator Paximus's Avatar
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      01-18-2014 04:33 PM #64
      Threads merged.

      Paul's post above added to this main Wiper thread.

      Chris
      -- I just bought a Phaeton. How do I..............................-- Upgrades, modifications, pampering
      -- Colours, factory options, reviews...............................-- Technical Reference
      -- Troubleshooting.................................................. ....-- See the TOC/FAQ (Index) for more details

    30. Senior Member PanEuropean's Avatar
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      06-05-2014 12:14 AM #65
      Archival Note:

      An older wiper discussion that might contain some additional useful information - Wiper blade motors
      Last edited by Paximus; 09-22-2014 at 10:53 AM. Reason: Updated thread link

    31. 09-22-2014 03:44 AM #66
      can any one post diagram of wiper blades motor, i bought phaeton, but there are no any wiper blades and motor inside, so i probably need to Order complete system.

      can you please help?

    32. Moderator Paximus's Avatar
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      09-22-2014 11:06 AM #67
      Hi,

      Welcome to the forum!

      What sort of information do you need? Is it part numbers, or an electrical wiring diagram? There are a lot of photos and assembly discussions in this thread and the other one mentioned above.

      Regards,
      Chris

      PS - please would you add some information in your forum Profile? It will help get the correct answers to your question, for example by listing if your car is from a Right Hand Drive country with the wipers reversed. This thread refers: Please Read Regarding your Forum Profile
      -- I just bought a Phaeton. How do I..............................-- Upgrades, modifications, pampering
      -- Colours, factory options, reviews...............................-- Technical Reference
      -- Troubleshooting.................................................. ....-- See the TOC/FAQ (Index) for more details

    33. n00b
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      04-19-2015 05:12 PM #68
      Thanks to all that have posted regarding the replacement of the right side wiper drive mechanism. Just replaced mine and your information made it an easy task to complete and save a bundle that the dealer wanted for the job. Thanks again.

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