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WMI Help needed. Lots of it please!

Discussion in 'A3/S3 Forum (8L Chassis)' started by g60leigh, Mar 1, 2013.

  1. s3dave
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    s3dave TFSI Hybrid Supporter

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    [Jun 13, 2013]
    Double check the yellow wire is switched..
    #41
  2. g60leigh
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    g60leigh Well-Known Member

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    [Jun 13, 2013]
    As long as rain keeps off I'm gonna have a check of it all tonight.
    #42
  3. Loor
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    Loor Member

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    [Jun 13, 2013]
    Guys, why don't u use original window washer tank to do both things, wash windows and WMI:yes: And it has level sensor as well.
    Dont have to fit special tank for WMI, just fill your window washer tank more often and thats it, even OEM look stays.
    #43
  4. g60leigh
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    g60leigh Well-Known Member

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    [Jun 13, 2013]
    Won't the meth destroy the window rubbers etc.

    And don't think screen wash would be great in the engine lol ;)
    #44
  5. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Jun 13, 2013]
    One guy did do this (Welly) but the AEM kit that most of us bought comes with a tank and personally I'd rather keep the two things seperate.
    #45
  6. Loor
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    Loor Member

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    [Jun 13, 2013]
    Screen wash liquid is same as just any other mixed methanol and water :) U can even choose how strong mix u wanna use, they even sell those 50% meth washer liquids in almost every gas station.
    #46
  7. g60leigh
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    g60leigh Well-Known Member

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    [Jun 13, 2013]
    Didn't know that. Thought screen wash was ethanol rather than meth.
    #47
  8. g60leigh
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    g60leigh Well-Known Member

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    [Jun 13, 2013]
    Well been out and re soldered all of the wiring.
    Also added a switch so I can isolate it if needed.

    Now all I need to do is figure a way of testing accurately when it is activating. I have the controller set to where I believe it needs to be. But would like to test it does activate when I want it to

    Any suggestions

    Also what water do you guys mix with the meth? Is it diionised or distilled. Of just tap?
    #48
  9. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Jun 13, 2013]
    I just use tap water but it will probably depend if you're in a hard water area or not.
    #49
  10. S3Alex
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    S3Alex Rarely neutral

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    [Jun 13, 2013]
    I use the AEM kit on my car,running between 25-50% methanol.

    Methanol I get from my local model aircraft and car shop,at around £9 for 4L,which is pretty reasonable.

    I always use demineralised water.
    #50
  11. superkarl
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    superkarl MAN OF STEEL

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    [Jun 13, 2013]
    distilled water has more oxygen in it.
    #51
  12. s3dave
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    s3dave TFSI Hybrid Supporter

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    [Jun 13, 2013]
    Sorry but £9 for 4 litres is a rip off, i get 25 litres for £12 and i dont know them from adam!!
    OHH also i am from Yorkshire, so have the best water in the uk... so straight in it goes....:beerchug:
    #52
  13. g60leigh
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    g60leigh Well-Known Member

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    [Jun 13, 2013]
    Demineralised? Where do you get that from?

    I have a source for the meth. So just got to get time to get it.

    How do you safely store it?
    #53
  14. superkarl
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    superkarl MAN OF STEEL

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    [Jun 13, 2013]
    Demineralized is deionized, much the same as distilled.
    #54
  15. S3Alex
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    S3Alex Rarely neutral

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    [Jun 13, 2013]
    Absolutely.

    I've found Halfords sometimes sells 4L packs really cheap and just buy a few then.
    #55
  16. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Jun 14, 2013]
    I have my meth in a meth container in my garage but I'd rather keep it in a shed if I had one. If a fire was to brake out in my garage 25L of meth isn't going to help much!
    #56
  17. g60leigh
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    g60leigh Well-Known Member

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    [Jun 14, 2013]
    Got some de-ionised water from asda this morning. 75p for 2.5L on sale so grabbed a few.

    Do you use any special container to store it in or just the 25L container it comes in?
    Will store it in my shed as that sounds the most sensible lol
    #57
  18. S3Alex
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    S3Alex Rarely neutral

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    [Jun 14, 2013]
    I either keep it in the house or garage.

    Just not outside in winter!

    Good price there.
    #58
  19. g60leigh
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    g60leigh Well-Known Member

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    [Jun 15, 2013]
    Out of curiosity. Why not outside in winter.

    Not got any yet or seen coshh label etc yet. But would of guessed it would be fine in cold just not hot areas.
    #59
  20. g60leigh
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    g60leigh Well-Known Member

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    [Jun 18, 2013]
    Got Meth!

    Got some meth dropped off last night so tank is now filled ready to test.

    First real test will be on way home late tonight, but hopefully get a feel for it on way.
    #60
  21. Scullies
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    Scullies Well-Known Member

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    [Jun 18, 2013]
    Do you have VCDS? Would be nice to see some IAT logging.

    I found a pump and its on its way :)
    #61
  22. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Jun 18, 2013]
    Have you fitted a solenoid to avoid syphoning? If not you want to keep an eye on it as im on my 3rd AEM nozzle as they are leaky cack!
    #62
  23. Scullies
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    Scullies Well-Known Member

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    [Jun 18, 2013]
    do you use a check valve Westy?
    #63
  24. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Jun 18, 2013]
    I do now. I use a devils own solenoid and it works a treat. Stops any syphoning of mixture into the FMIC pipes. I nearly wrecked my engine when half the tank had gone into the hoses and I turned the car on!
    #64
  25. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Jun 18, 2013]
    Well the AEM nozzles have in built check valves but I've had 2 fail in a few months so I just don't trust them.
    #65
  26. g60leigh
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    g60leigh Well-Known Member

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    [Jun 18, 2013]
    I have two check valves on. No solenoid. (Yet possibly)

    I have an inline check valve and the one built into the nozzle.

    Do you think a solenoid is still necessary?
    Westy- how much was yours and where did you get it from.
    #66
  27. g60leigh
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    g60leigh Well-Known Member

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    [Jun 18, 2013]
    Had it switched on for the journey to work. But traffic was awful so not had chance to feel if any difference yet.

    Finish at 23:30 tho so should get to open up a bit on the journey home.
    #67
  28. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Jun 18, 2013]
    You might be ok with an inline too. I was fonna get an inline but Bill said he'd used a Devils Own solenoid for years on his race car with no issues so I went for that. Don't think it was cheap, around £40 and something else to wire in. Just keep an eye on you level in the tank. Check it very frequently. If you suspect it's dropped a lot, don't start the car! Pop the FMIC hose off by the nozzle and see if it's full of water/meth.
    #68
  29. g60leigh
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    g60leigh Well-Known Member

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    [Jun 18, 2013]
    Been running two days with just water and seems fine.
    Also checked all of it for leaks before and after fitting before switching it on.
    Hopefully it's all good.

    Will keep checking tho.
    #69
  30. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Jun 18, 2013]
    There was a bad batch of nozzles that AEM were aware of so thy might have sorted it. I seemed to have had 2 of them though lol
    #70
  31. g60leigh
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    g60leigh Well-Known Member

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    [Jun 18, 2013]
    Once you have a bad experience tho. You loose confidence in the brand.
    #71
  32. Scullies
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    Scullies Well-Known Member

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    [Jun 20, 2013]

    Last edited by a moderator: Aug 15, 2014
    #72
    s3dave likes this.
  33. Paradox1
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    Paradox1 Active Member

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    [Jun 20, 2013]
    Leigh, use the check-valve from the first wmi kit you had if you still have it. Same as the one I had, never had any issue with it. just a simple design and more reliable than the AEM ones
    #73
  34. g60leigh
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    g60leigh Well-Known Member

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    [Jun 20, 2013]
    That one wouldn't of worked. Aquarist uses a much smaller bore pipe work. 😒
    Shame tho as good price
    #74

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