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    Thread: Flapper Switch DIY...nailed it

    1. Member Saabstory02's Avatar
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      01-21-2011 09:11 PM #26
      Bumpin' this up; I've heard Durty's plans (I won't spoil his surprise though) and his update should be sweet once he is ready.
      -Jason
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    2. Member fred340's Avatar
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      01-23-2011 05:46 PM #27
      I'm going to post the info I have shared with Rdurty2 by pm, if you want to do a two way switch.



      Blue/red is + and lilac/brown is the ground controled by the ecu.

      The resistance of the N321 is 27.5 ohms so I opened up a broken dvd player and found a 60ohms resistor. That part is welded to the ecu wiring and I'm not having any cell.
      My wires are ready for the switch, I welded a wire to the 12v socket in the center console and installed a switch in the ashtray. Then the + wire is going all the way back to the end of the car. I'm kind of lazy(hehe) and it's so easy to work in that area. The're are also less chance of water/snow damaging the modified wires there.
      Then I welded the wire to the blue/red wire. For the lilac/brown I welded another wire and the're is a nice ground in the back near the quater pannel so i'm grounding it there.

      bad drawing I just did:




      I welded the wire of the switch directly to the + male terminal of the 12v socket, if you do it right you can still put back the female connector and still have a functioning 12v socket.





      Last edited by fred340; 01-23-2011 at 06:35 PM.

    3. Member neu318's Avatar
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      01-24-2011 04:34 PM #28
      Quote Originally Posted by f.rizzo View Post
      Seriously good work.

      Seriously.
      Makes me wonder if the CC has a flapper

      Probably not, my A3 doesn't have one either.
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      Interests:Food being shoved in hot chicks faces.... and other stuff....

    4. Member Roberts_J's Avatar
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      01-25-2011 03:52 PM #29
      This is so awesome! I'm going to do the TampaVW mod to my stock exhaust then get this done! But first i want to wait until the big plans have been unveiled, the suspense is killing me!

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      01-26-2011 07:29 AM #30
      Quote Originally Posted by Roberts_J View Post
      This is so awesome! I'm going to do the TampaVW mod to my stock exhaust then get this done! But first i want to wait until the big plans have been unveiled, the suspense is killing me!
      TampaVW mod + Rdurty2 mod = perfect exhaust

      I'm working on two different switch config's currently. The first I'm just waiting for the parts to be delivered, the second I'm waiting to hear back from someone.

    6. Member shovelhead84's Avatar
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      01-26-2011 08:23 AM #31
      Quote Originally Posted by fred340 View Post
      I'm going to post the info I have shared with Rdurty2 by pm, if you want to do a two way switch.



      Blue/red is + and lilac/brown is the ground controled by the ecu.

      The resistance of the N321 is 27.5 ohms so I opened up a broken dvd player and found a 60ohms resistor. That part is welded to the ecu wiring and I'm not having any cell.
      My wires are ready for the switch, I welded a wire to the 12v socket in the center console and installed a switch in the ashtray. Then the + wire is going all the way back to the end of the car. I'm kind of lazy(hehe) and it's so easy to work in that area. The're are also less chance of water/snow damaging the modified wires there.
      Then I welded the wire to the blue/red wire. For the lilac/brown I welded another wire and the're is a nice ground in the back near the quater pannel so i'm grounding it there.

      bad drawing I just did:




      I welded the wire of the switch directly to the + male terminal of the 12v socket, if you do it right you can still put back the female connector and still have a functioning 12v socket.
      I like this, BUT...... how about adding a second pressure switch under the gas peddle. This would add another setting to the driving experience. You can use your normal switch for always on/off or have the flapper open when the gas peddle is floored. That way you can drive in the always off position and just have the flapper kick in "on the fly" when you are demanding full power from the car?

      You would need two separate lines from the 12v source, but both lines would go to the controller. You could even get a switch with another selection and put the pressure switch on that. then you would have On/Off/Stock/Pressure

      Keep in mind my suggestion is made with admitted ignorance to the purpose of the ecu connection or stock flapper function. For all I know the ecu does this anyway with stock flapper control. I think I'll go look that up now
      Last edited by shovelhead84; 01-26-2011 at 08:30 AM.

    7. Member
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      01-26-2011 08:30 AM #32
      ^^ now you are just complicating things

      If you really wanted the stock setting then you would just use the wiring diagram in my first post as that gives you stock, always open, and always closed. No need for pressure switches behind the gas pedal, crazy amounts of wires, etc.

      I honestly never use the "stock" setting on my 3 way toggle. I either want it always quiet or always loud. I'm actually going to be switching to a 2 way switch...once my parts come in you will see why.

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      01-26-2011 09:54 AM #33
      Flapper switch DIY added to FAQ/DIY thread

    9. Member Roberts_J's Avatar
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      01-31-2011 07:07 PM #34
      cant wait for the DIY on a 2 way switch! I'm doing this once its up

    10. Senior Member .:1of1500:.'s Avatar
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      01-31-2011 07:36 PM #35
      Awesome work, man.
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    11. Member jimothy cricket's Avatar
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      02-01-2011 06:04 PM #36
      video?

    12. Member
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      02-01-2011 06:25 PM #37
      Quote Originally Posted by jimothy cricket View Post
      video?
      I took some in car video with my iphone but the sound sucked. I'm trying to figure out a way to use my iphone (it's the only recording device I have) to pick up on the sound difference.

    13. Member Saabstory02's Avatar
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      02-01-2011 09:06 PM #38
      Durty;

      When you are ready to video let me know, we can set it up right with a proper video camera and I have a nice in car mount to run it on as well
      -Jason
      '12 TDI 6M with "stuff"
      Underwraps Automotive

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      02-04-2011 08:18 AM #39
      The toggle switch just wasn't cutting it for me as it's been done to death.

      After a lot of ordering and returning of lots of pushbutton switches I finally found one that works great. I finished it up last night and installed it in the car this morning. It is a 2 setting pushbutton, flapper always open and flapper always closed. I saw no need for stock mode.

      This button I custom made myself. After going through a bunch of switches I found one that fit good enough. I then took one of the oem button blanks and cut it down so just the face and a bit of the sides were left. Next I epoxied a little washer to the pushbutton and then the oem button face to that. The washer is so the face would be perfectly level with the rest of the oem buttons.

      Last edited by Rdurty2; 02-04-2011 at 09:14 AM.

    15. Member Saabstory02's Avatar
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      02-04-2011 08:24 AM #40
      Sweet; is it lit as well?
      -Jason
      '12 TDI 6M with "stuff"
      Underwraps Automotive

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      02-04-2011 08:29 AM #41
      Quote Originally Posted by Saabstory02 View Post
      Sweet; is it lit as well?
      I knew this would be asked

      It's a vinyl decal.

    17. Member Roberts_J's Avatar
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      02-04-2011 05:22 PM #42
      that is so awesome!!! Found my next mod

      *edit* Where did you buy the switch from?

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      02-04-2011 06:47 PM #43
      Quote Originally Posted by Roberts_J View Post
      that is so awesome!!! Found my next mod

      *edit* Where did you buy the switch from?
      I custom made the switch

      I have enough materials left over to make a couple more if people are interested. Also I can always order more parts or put up a list and then it's up to you guys to do the work (I can post up the switch part # and more pics of it this weekend)

      If a handful of people want the exhaust vinyl I will do an order for that as I only have 2 left since I wasted one.

    19. Senior Member abeR's Avatar
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      02-04-2011 06:48 PM #44
      that is rad.


      nice work!
      WITW

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      02-04-2011 06:50 PM #45
      Thanks! It came out exactly how I envisioned it...as close to an OEM solution as possible.

      Finding the right switch as a base for the custom switch was very frustrating and I almost just said f it a couple times.

      I still have to return about 15 different switches that I now have laying around.

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      02-04-2011 08:39 PM #46
      even better now...want to do this so bad but i haven't done much with wiring and what not//so this makes me a little nervous....id also probably want to go this second route you just showed...so is it really worth buying the ecs kit when we're just gonna hack it?

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      02-04-2011 08:45 PM #47
      Quote Originally Posted by Sk.:Rilla View Post
      even better now...want to do this so bad but i haven't done much with wiring and what not//so this makes me a little nervous....id also probably want to go this second route you just showed...so is it really worth buying the ecs kit when we're just gonna hack it?
      If you just want a 2 setting switch then don't get the ecs kit as you won't use any of it. The wiring is pretty easy. Tomorrow I can post a bit more in depth as I don't have time right now.

    23. Member Roberts_J's Avatar
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      02-04-2011 09:36 PM #48
      I'll buy one of your other switches off you + a vinyl if you are willing to sell them. I dont know anything about wiring nor care to attempt it myself haha so if i can get a switch from you im just going to take it to my local dub shop and ask them if they can do the wiring and everything for me. The owner of the shop has a MKV R so im pretty confident they will do a good job

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      02-04-2011 10:01 PM #49
      Quote Originally Posted by Rdurty2 View Post
      If you just want a 2 setting switch then don't get the ecs kit as you won't use any of it. The wiring is pretty easy. Tomorrow I can post a bit more in depth as I don't have time right now.
      That would be awesome ! I only want a 2 way for sure... thanks a lot in advanced!

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      02-06-2011 01:58 PM #50
      I just completely redid the first post of this thread. I added lots of pictures, step by step directions, and diagrams for both a 3 way switch and also a 2 way switch.

      Any questions about the process just let me know.

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