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  1. #1
    big_mo's Avatar
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    Ahhhhhhhhhhhhhhh my head

    Right guys i have had it
    I want to know some thing and i want it stright lol
    I had a............ heated debate about TURBOS
    Right i have an A3 1.8T 20v DBW Y reg. Its a standard turbo that came with the car....................................What is it?????????

    1.8t,AUM,Ming blue,Forge TIP,Forge silicone turbo hoses,BMC CDA,Forge 007p,Neuspeed short shift gearlink,powerflow hidden cat back,miltek downpipe,R8 oil cap,HIDs,Custom Code stage 1,de badged,de wipered,FKcoilovers

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  3. #2
    S3 Paul's Avatar
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    K03 surely
    Noggy Blue 2001 S3

    I ask questions because i change my mind so much. If i ask questions you have already covered... just leave it be?

  4. #3
    Paul @ Unit9Rempas's Avatar
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    dito

    2003 B6 Audi A4 Avant. 3.0 V6 Quattro Sport

  5. #4
    Imteyaz's Avatar
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    KO3S (Y-plate is 2000/2001?) although a definitive way to check is to read the part number off the turbo and cross check it to see exactly which one is fitted. The local stealership can also assist, if you ask nicely for the part number based on your registration number.
    Imteyaz.

  6. #5
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    K03 from what I've read.

    OEM RETROFITS - CRUISE CONTROL - SAT NAV - BLUETOOTH - AMI - HEADLIGHT SYSTEMS

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  7. #6
    S3 Nattie's Avatar
    Quattro ist für sissies

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    Facelift were around late 2000. If you have a facelift model I thought it would be a K03S.
    For sale

    3" Downpipe and de cat (will be going on ebay soon)
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  8. #7
    Broken Byzan's Avatar
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    150 bhp FWD cars were K03 turbo'd. It was only the TQS and Golf anniversery that got the K03S to give 180 bhp

  9. #8
    Gareth_RS3's Avatar
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    Would have come from the factory with a ko3 bud for sure doesnt matter if it is a facelift or not.
    Absolute Red 8L S3 Revo, Hybrid Turbo, 3" downpipe, decat, Ds2500, FMIC 300bhp & 330 lb/ft

    ........ To Come, Sachs clutch & Fidanza lightened flywheel, BBS CH Reps, AP Coilovers, Rear tie arms & 20mm spacers & eventually MISANO red respray

  10. #9
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    Check your engine code and cross reference it with the list here:

    http://www.audi-sport.net/vb/showthread.php?t=74563

    That should answer your question.
    Imteyaz.

  11. #10
    1animal1's Avatar
    The Clar!! it mouves!!!

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    definately KO3.....the quattro is KO3s and is 180bhp..... yours is definately 150bhp and so KO3
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  12. #11
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    I've just called my local TPS and asked them the part number for my turbo based on my registration number (Y plate A3 1.8t FWD, DBW, engine code AUM), the part number they gave was: 06A 145 713F, they said that the same part number is listed for the AUQ engine (A3 TQS).

    VAG Cat came up with this though:

    http://www.vagcat.com/epc/cat/au/A3/...01/49/2397109/

    O6A 145 713D (not 'F'), still listed as KKK, AUM/AUQ.
    Last edited by Imteyaz; 14th October 2009 at 14:41. Reason: my engine code added.
    Imteyaz.

  13. #12
    big_mo's Avatar
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    Quote Originally Posted by Imteyaz View Post
    Check your engine code and cross reference it with the list here:

    http://www.audi-sport.net/vb/showthread.php?t=74563

    That should answer your question.
    So by this then i have a KO3sport

    1.8t,AUM,Ming blue,Forge TIP,Forge silicone turbo hoses,BMC CDA,Forge 007p,Neuspeed short shift gearlink,powerflow hidden cat back,miltek downpipe,R8 oil cap,HIDs,Custom Code stage 1,de badged,de wipered,FKcoilovers

  14. #13
    big_mo's Avatar
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    Yeah mine is a DBW and also a facelift................ I said to my mate i have a KO3 but he is aderment that it is a KO3S

    1.8t,AUM,Ming blue,Forge TIP,Forge silicone turbo hoses,BMC CDA,Forge 007p,Neuspeed short shift gearlink,powerflow hidden cat back,miltek downpipe,R8 oil cap,HIDs,Custom Code stage 1,de badged,de wipered,FKcoilovers

  15. #14
    Essflee's Avatar
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    I would of guessed at K03s turbo, dbw was only on the face lifts I believe...hence being a K03s...
    revo'd

  16. #15
    Imteyaz's Avatar
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    I don't know how accurate the list is though.....

    There is a visual difference between the 2 turbo's, something about the number of blades on the impeller (8 blades on KO3S v's 12 blades on KO3). I'm sure someone will come along soon and clarify that.
    Imteyaz.

  17. #16
    Essflee's Avatar
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    Quote Originally Posted by big_mo View Post
    Right guys i have had it
    I want to know some thing and i want it stright lol
    I had a............ heated debate about TURBOS
    Right i have an A3 1.8T 20v DBW Y reg. Its a standard turbo that came with the car....................................What is it?????????

    Just noticed your signature, you have a Custom Code map, do you know your bhp figure, if you broke the 200bhp mark then you most definately have a K03s turbo,

    I believe you have...
    revo'd

  18. #17
    big_mo's Avatar
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    Well i had it done by Storm in Reading and there rollers are out buy 20-30bhp so i have heard. It said it was 230bhp so if thay are out im there or there abouts
    Cant realy say any more on thay mate

    1.8t,AUM,Ming blue,Forge TIP,Forge silicone turbo hoses,BMC CDA,Forge 007p,Neuspeed short shift gearlink,powerflow hidden cat back,miltek downpipe,R8 oil cap,HIDs,Custom Code stage 1,de badged,de wipered,FKcoilovers

  19. #18
    Essflee's Avatar
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    There you go then, definately K03s...

    You'd be no where near those figures with a K03, some peeps have seen 230ish with the K03s...
    revo'd

  20. #19
    Lee Goodall's Avatar
    ..got my head together!

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    As somebody said above.. why not just read the tag on the turbo to get the code and then it's easily identified? Simple.

  21. #20
    RichA3Turbo's Avatar
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    It aint THAT simple on an A3. There is no room to get your head down to read it.

    However, the later 1.8T 150/180 both came with K03.053/053 i believe. the 'S' designation is made up and doesnt actually say that on the turbo. I believe the earlier K03 was a K03.011 or something.

    i know for a fact the AUM was a K03's'
    IHI-VF34 + RACELOGIC + Parada SpecII = Who needs Quattro?! 0-60 5.1s @ Inters '06

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  22. #21
    Lee Goodall's Avatar
    ..got my head together!

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    Yeah if you could visually check the plate on the turbo it wouldn't actually say K03S as stated above but you could cross reference your findings to see if it is what we term as a 'K03S'.

    No room to get a small mirror in there to get a glimpse at the plate either?

  23. #22
    RichA3Turbo's Avatar
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    .
    The Question

    Can the K03 turbo (5303 988 0011 or 5303 988 0053) be directly replaced by the K03S (5303 988 0052 or 5303 988 0026) in terms of the intake and exhaust housing dimensions?

    Is K03S the correct designation for the latter turbo mentioned above?

    Obviously if a K03S was fitted an engine map could be changed to suit, but would a standard turbo map for the K03 be suitable for running a K03S on?
    or would a loss of power be expected? and are the characteristics of the two very similar?

    I hope you can assist with the above and any information you could supply would be gratefully accepted.

    It's taken me a couple of weeks to get a response, but the response was well worth it, I think yu'll agree.



    The Answer

    Dear Sir,

    thank you for your interest in our products.

    First of all, we don't produce any turbo that we call K03S. But I hope I can
    answer your questions with the following explanations.

    All the following turbos have the same installation dimensions and
    thermodynamical performance. The differences are only in the actuator that
    opens the turbine bypass valve:
    K03-011 (5303 988 0011) 150 hp, 65 N actuator
    K03-026 180 hp, 85 N actuator
    K03-035 180 hp, 85 N actuator
    K03-044 150 hp, 65 N actuator
    K03-045 156 hp (Ibiza Cupra), 85 N actuator with 2 ports
    K03-049 150 hp (Sharan/Alhambra), 65 N actuator
    The 180 hp versions have an actuator with a higher opening force due to the
    higher exhaust gas pressure (which is a consequence of the higher boost
    pressure). Otherwise the valve would be pushed open by the exhaust gas
    pressure.

    The following turbos are a further development (since 2000) and have an
    improved and slightly larger compressor while using the same turbine (still
    with the same installation dimensions):
    K03-052 180 hp, 85 N actuator
    K03-053 150 hp, 85 N actuator
    K03-058 150 hp/180 hp, 85 N actuator

    Consequentially, putting a 180 hp turbo on a 150 hp engine will not bring
    about any change in performance, but putting on a K03-052/053/058 instead of
    the older versions will bring a slight improvement in engine efficiency.
    Additionally, with re-mapping the ECU you can achieve about 215 hp without
    danger of overspeeding the turbo. With the older turbos, 195 hp is the
    limit.

    With the K04 that's also commonly used (5304 950 0001) the power output
    should not be more than 220 hp. That means, changing a K03-052/053/058
    against a K04 does not make a lot of sense.

    I hope that these details answer your questions. If you need more info, one
    of our service distributors will be glad to help you. Their addresses are on
    our website www.turbodriven.com.

    Mit freundlichen Gren/Best regards,
    BorgWarner Turbo Systems GmbH
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  24. #23
    JS1500's Avatar
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    Good info there! Cheers for posting it.
    But really, K04 should not produce more than 220hp?
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  25. #24
    RichA3Turbo's Avatar
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    I think he means a K04.001 which is not much better than a K03
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    Thought of the month: People need to understand what is meant by 'Build Thread'...

  26. #25
    JS1500's Avatar
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    Quote Originally Posted by RichA3Turbo View Post
    I think he means a K04.001 which is not much better than a K03

    Ahh, ok.
    What's the one fitted to the S3 (BAM)?

    2001 Audi RS4 2.7 Bi-Turbo - Nogaro Blue

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  27. #26
    RichA3Turbo's Avatar
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    Not a K04.001 or k04.015... lol

    Sorry, not sure of the code.
    IHI-VF34 + RACELOGIC + Parada SpecII = Who needs Quattro?! 0-60 5.1s @ Inters '06

    Thought of the month: People need to understand what is meant by 'Build Thread'...

  28. #27
    Westy's Avatar
    Double Dark Side! Diesel & 8P

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    This thread its getting quite confusing
    8P A3 TDI - 220bhp - 335lbft
    A3 Maintenance Thread
    Bye bye S3 you will be missed.
    S3 Build Thread







 

 

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