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Thread: Changing my haldex controller!

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    Changing my haldex controller!

    Hello people of Merkovo!

    As many already know, I bought jojo's s3 without the haldex working. We sourced it to a faulty haldex controller so changing it would be the best thing to do.. Joe managed to source one but the guy he got it off cut the wires so I had to take my controller off on the car currently and snip the wires to rejoin, either way the old one didnt work so not really too bothered about that. Sadly no pics of my handy soldering job with the wires (not pretty either) but putting the controllers side to side, there are some differences, may be due to some improvement to the design of some sort:

    [IMG][/IMG]

    The one on the left was the one that we didnt know worked or not (the new one) and the one on the right is the one that was on the car.. The gaskets are different although you could use the metal one for both but the left one has a grove for the o-ring where the one on the right hasnt, its just a flat surface. i decided to use the o-ring still as it was in good condition and i didnt want to risk any leaks.. lost enough oil as it is so a haldex oil change is due now.. Yet to put it on the car, only just secured it on to stop it leaking oil out. will get some gasket seal just to be sure, then i'll apply it and see if i have 4wd! shall post tomorrow once i have done!
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

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    Good luck

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    Should be noted that the haldex is hydraulic and therefore there is some pressure involved... you maybe better off taking the part numbers to a dealer and make sure you have a) the right part for your car, b) the right seals... no idea what could happen should the oil leak out but it probably won't be pretty and may well be expensive...

    Worth checking tbh for piece of mind as there are subtle differences between the ESP and non ESP controllers IIRC and may well be other changes over the years too

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

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    Will do tufty, thanks for that. I've had some oil drip out because when i plugged the holes in the haldex, it came out and i found abit of a puddle on the floor when i came back!! hope that doesnt do any damage as im gonna have to top up/change the oil which was on my to-do list next week. Looking at the two parts wiring wise, there isnt any differences in the colours of the wires.. but will check. Anyone got etka that could have a look at the part numbers?
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

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    checked ETKA and the part numbers for the controller from 97-03 are the same which is 02D900554C.
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

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    The controller off my 99 S3 looks like the one on the left, I should know I've had 3 !!
    99' S3 APY currently just 007p, Badger 5 TIP, Customised Miltek non-res cat-back, Jetex cone, H&R Springs and Bilstein B8 Dampers ... 3" Downpipe, AH Fabrications FMIC and R-Tech Re-map on the way

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    And thats the one i've just put on the car! The controller on the left has a grove where the holes are for the o-rings to fit so i thought it'd be best to keep them in and just touch it up with abit of sealant. Put the controller on wired it up and triple checked everything. didnt tighten the bolts tooooo tights as i thought it might uneven the surface of the haldex. But went out for a cheeky spin, not pushing it hard or anything, just to check it doesnt wheelspin in 1st (as its pretty wet outside and thats what it used to do when i 1st got it) and hey presto it works! Im gonna keep a close eye on it just incase and also im changing the haldex oil and filter for added piece of mind next week.
    Jas Lad likes this.
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

  9. #8
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    Good work Gops, now time to quattro it through winter!


    99' Audi S3(APY) - Brilliant Black Click>>>Going Sideways vid!
    You've got to have a laugh!



  10. #9
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    It's never fast enough !

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    That could mean the old one isn't broken then, it looks completely wrong ?
    99' S3 APY currently just 007p, Badger 5 TIP, Customised Miltek non-res cat-back, Jetex cone, H&R Springs and Bilstein B8 Dampers ... 3" Downpipe, AH Fabrications FMIC and R-Tech Re-map on the way

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    Quote Originally Posted by Ginge View Post
    That could mean the old one isn't broken then, it looks completely wrong ?
    It's defo broke, I got it off another member for the wiring loom, but I bolted it on temporarily to take the performance one off waiting to be fitted to my own car.


    99' Audi S3(APY) - Brilliant Black Click>>>Going Sideways vid!
    You've got to have a laugh!



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    You reckon theres people who could fix it? or recondition it, or better.. make it a performance one ?
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

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    Nice work mate well done...you now have a bargain of a car!!

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    Thanks dave! Just recieved my haldex oil and filter for £45 from ebay!! Thats gonna be done as soon as i get a chance!
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

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    Defo worth the wait :)

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    Hey Gops well done on doing the swap...

    You know you need a special part to do the oil and filter change on Haldex??

    Do a quick search if you are not aware....

    Failing that I have heard of a new place near you called vastech that are really good and have a very good rep from a few peeps at work

    Audi, Volkswagen, Seat, Skoda Car Servicing & Repairs Wawickshire - Vastec Car Service

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    Quote Originally Posted by Nilz View Post
    Hey Gops well done on doing the swap...

    You know you need a special part to do the oil and filter change on Haldex??

    Do a quick search if you are not aware....

    Failing that I have heard of a new place near you called vastech that are really good and have a very good rep from a few peeps at work

    Audi, Volkswagen, Seat, Skoda Car Servicing & Repairs Wawickshire - Vastec Car Service
    He knows, cos he's borrowing mine Nilzy.


    99' Audi S3(APY) - Brilliant Black Click>>>Going Sideways vid!
    You've got to have a laugh!



  17. #16
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    Defo worth the wait :)

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    Good, in that case he can do mine as well whilst he is at it!! Lol

  18. #17
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    Lol pop down! Just got some ramps to make my life easier!
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

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    Quote Originally Posted by Gops View Post
    Hello people of Merkovo!

    As many already know, I bought jojo's s3 without the haldex working. We sourced it to a faulty haldex controller so changing it would be the best thing to do.. Joe managed to source one but the guy he got it off cut the wires so I had to take my controller off on the car currently and snip the wires to rejoin, either way the old one didnt work so not really too bothered about that. Sadly no pics of my handy soldering job with the wires (not pretty either) but putting the controllers side to side, there are some differences, may be due to some improvement to the design of some sort:

    [IMG][/IMG]

    The one on the left was the one that we didnt know worked or not (the new one) and the one on the right is the one that was on the car.. The gaskets are different although you could use the metal one for both but the left one has a grove for the o-ring where the one on the right hasnt, its just a flat surface. i decided to use the o-ring still as it was in good condition and i didnt want to risk any leaks.. lost enough oil as it is so a haldex oil change is due now.. Yet to put it on the car, only just secured it on to stop it leaking oil out. will get some gasket seal just to be sure, then i'll apply it and see if i have 4wd! shall post tomorrow once i have done!
    I am looking for the haldex controller on left in the picture are these preface lift or facelift ?

  20. #19
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    Quote Originally Posted by Gops View Post
    Hello people of Merkovo!

    As many already know, I bought jojo's s3 without the haldex working.
    Does this mean Jojo is no longer in the S3 crowd? or in to a newer one?
    ...... Waiting Paitently...

  21. #20
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    Quote Originally Posted by S4quatt View Post
    Does this mean Jojo is no longer in the S3 crowd? or in to a newer one?
    It means I was, at one point, the owner of 2 S3's!, I sold one to Gops, and kept the MINT one!



    99' Audi S3(APY) - Brilliant Black Click>>>Going Sideways vid!
    You've got to have a laugh!



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    Quote Originally Posted by Goubo1 View Post
    I am looking for the haldex controller on left in the picture are these preface lift or facelift ?
    Does anyone know the part number for the gasket for the haldex controller on the right ?

  23. #22
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    I'm sure it's 02d 525 589. Around £2 or so.
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

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    Quote Originally Posted by Gops View Post
    I'm sure it's 02d 525 589. Around £2 or so.
    Sound mate thanks

  25. #24
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    Jojo you show off! tried to sell me a duff car!
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

  26. #25
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    Quote Originally Posted by Gops View Post
    Jojo you show off! tried to sell me a duff car!
    My one is catching you up on duffness!


    99' Audi S3(APY) - Brilliant Black Click>>>Going Sideways vid!
    You've got to have a laugh!



  27. #26
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    Quote Originally Posted by jojo View Post
    It means I was, at one point, the owner of 2 S3's!, I sold one to Gops, and kept the MINT one!

    Niiiiiiice!!

    But why's it turning into a duffer?
    ...... Waiting Paitently...

  28. #27
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    Quote Originally Posted by S3quatt View Post
    Niiiiiiice!!

    But why's it turning into a duffer?
    Failed MOT last week, passed now though...


    99' Audi S3(APY) - Brilliant Black Click>>>Going Sideways vid!
    You've got to have a laugh!



  29. #28
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    Quote Originally Posted by Goubo1 View Post
    I am looking for the haldex controller on left in the picture are these preface lift or facelift ?
    Sorry to resurrect an old thread, but I've got the controller on the right off ebay, does anyone know if that is for a facelift model?

    Cheers!
    Silver 2002 S3 - Alloy Mirrors - RNS-E - Parrot MKI9200 - Beesting Ariel - Stealth Catch Can - S2000 Air Filter - R32 Rear ARB

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