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Haldex Drain Plug

dan-quattro Aug 4, 2016

  1. dan-quattro

    dan-quattro Member

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    Hi all,

    Can anyone tell me if the part number for the drain plug is 02D 525 729?

    It's all I can find and is coming up on fleabay for the TT/R32 Golf.

    Will this fit my 8l chassis?

    Many thanks
     
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  3. VAG-Slag

    VAG-Slag Well-Known Member

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    8N TT and Mk4 R32 share the same fake 4wd system as the S3, so yea, should be fine!
     
  4. dan-quattro

    dan-quattro Member

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    Cheers dude!

    There's a vw spares page on the net listing that part number for 8l's so looks to be ok to fit but just thought i would ask in case anyone had to previoisly verify it before buying and smashing the old one out lol
     
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  5. ayfreetee

    ayfreetee Well-Known Member

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    Fake, huh, spoken words from a fwd owner :)
     
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  6. Stuart B

    Stuart B Well-Known Member

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    He he I wish I bought a FWD A3 then I could simply replace the whole instead of a yearly service and MOT.

    Regarding the washer and plug yes I bought the one from ebay, just make sure you clean the surfaces and do not over tighten.
     
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  7. dan-quattro

    dan-quattro Member

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    Reckon the last guy who fitted the plug to mine overtightned, rounded off and looks like some work involved to get the current one out...
     
  8. IanPG

    IanPG Well-Known Member Silver Supporter Team Nogaro Blue Audi S3

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    chisel and hammer it out by making a groove holding it straight on them angle it so it's unwinding the thread and hit away! shouldn't take too much effort
     
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  9. VAG-Slag

    VAG-Slag Well-Known Member

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    If you can tell me exactly when your "4 wheel drive" car is 4 wheel drive, I'll entertain this comment...

    And just to be clear, not only am I an EX fake Quattro owner (for good reason) ;-) I am also a PROPER quattro owner... Although to be fair, I've even converted that to RWD :tearsofjoy::tearsofjoy::tearsofjoy:
     
  10. snowy

    snowy Active Member

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    All you've done is convert another fake 4 wheel drive system to 1WD

    lol
     
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  11. VAG-Slag

    VAG-Slag Well-Known Member

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    Nothing is about this statement is accurate, you opinion from here on in is now not valid...
     
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  13. Erikn89nl

    Erikn89nl Well-Known Member

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    Unless he's converted a Morgan 3-wheeler to RWD, I reckon he'd have at least 2WD ;)
     
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  14. snowy

    snowy Active Member

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    Unfortuneately not

    All production 'proper' quattro are supplied with an open front axle and rear axle differential

    Even the RS6 + RS4

    LSD upgrades are required, just as for a Haldex car (example)

    Just as a FWD A3 is really 1WD without an LSD ..
     
    Last edited: Aug 5, 2016
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  15. VAG-Slag

    VAG-Slag Well-Known Member

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  16. snowy

    snowy Active Member

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    Those diffs didn't come from factory though did they ?

    Had to be upgraded

    Just as a Haldex based car does

    Some of us have been running LSD upgraded haldex drivetrain for years

    Selectable FWD/4WD (such as Haldex) has dominated stage rallying for years
    Now dominating in rallycross too
     
  17. VAG-Slag

    VAG-Slag Well-Known Member

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    No no no... The 4wd systems you talk of here are permanent 4wd with electronically controlled power distribution, which have indeed been dominating rally/rally cross, but is not to be confused with the Haldex system... In comparison the Haldex is vastly inferior

    And correct, no LSD's from factory...
     
  18. snowy

    snowy Active Member

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    Sorry, not they weren't and aren't


    The Hewland transverse gearbox/front axle LSC and central LSC unit, as fitted to the Octavia WRC;
    [​IMG]


    These days LSC have been reduced to a unit called a Rear Disengagement Clutch (its the front of this SADEV ST4-49)
    With this system there is effectively no central diff - just on/off power to rear axle (as per R5 rally cars)
    [​IMG]






    Relvance to Haldex ?

    You make a haldex operate like a very basic Hewlands LSC - at vastly cheaper cost

    Take a gander a speed-engagement modes on the likes of the HPA TM or CRC controller
    Does automatically what a rallycross driver has to do manually

    Not something you can do with a static 4x4 system
     
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  19. Gops

    Gops Badger 5 Edition Gold Supporter VCDS Map User Audi S3

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    Lots of cars run Haldex. Guessing they're all fake too? Aventador, r8, Veyron etc etc. It works, keeps me on the road.. Win win.

    Albeit it's not the best system the Gen1 but it works.
     
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  20. VAG-Slag

    VAG-Slag Well-Known Member

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    Oh ok, fair enough... That's quite impressive! I thought you referring to the likes of the Subaru's and Evo's

    Still, there's no way that will compare with an out the box Haldex system in terms of performance...
     
  21. snowy

    snowy Active Member

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    The Mitsubushi ACD system is pretty identical to Haldex (the actual LSC sitting the front transfer box), in both function and capability

    Out the box though - un-upgraded, VAG haven't used Haldex anywhere close to its full potential

    Upgraded, stock Evo's and Scooby's are less capable - you then need to upgrade their factory diffs to match perofrmance
     
  22. ayfreetee

    ayfreetee Well-Known Member

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    Anyway, yes those drain plugs should fit your haldex. :)
     
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  23. dan-quattro

    dan-quattro Member

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    Cheers Ian will tackle it again once the new plug arrives :)
     
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  24. ayfreetee

    ayfreetee Well-Known Member

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    Also you could cut a slot in the bolt head with a slitting disc, then undo it with a flat blade screwdriver, possibly with a pair of mole grips clamped to the screwdriver blade for extra leverage.
     
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  25. dan-quattro

    dan-quattro Member

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    Thanks dude!
     
  26. Stuart B

    Stuart B Well-Known Member

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    Hi,
    make sure you get the plug really clean and get a good quality allen key, I think they are 5 or 6 mm and mine turned in the plug I used a neighbour's in the end he measured my cheap one which was 0.3mm smaller eg 4.7 or 5.7 instead of 4.99 / 5.99 also I found mine seemed to flex so much more.

    I assume you're changing the filter too, the cheap special tools are awkward unless you grind off some of the handle or remove the plastic petrol tank cover.
     
  27. dan-quattro

    dan-quattro Member

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    Thanks Stuart,

    Filter is ok was done by the garage last time it was all due, but from now on will do it all myself.

    For now it's just the oil that reuires changing, and today I picked up some multi spline sockets and managed to hammer one slightly oversized in following the spray of some wd-40 and she came out first time, releived to say the least!

    Going nowhere as I'm off work for the rest of next week so I nipped the plug back up and will await the new plug arrival and crack on swapping the oil!

    Thanks for the tips :)
     

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