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  1. #1
    Brendan12's Avatar
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    Slugglish A4 2.0 Turbo

    I've just bought an A4 2.0 Turbo the weekend.

    It's an 05 plate with 53,000. My problem is it feels very sluggish for a 2.0 turbo. I'm not sure whether its me been used to quicker cars, but it really doesn't feel like it even has a turbo!

    Another problem I have is that it makes a really loud rattling/tappety noise on idle. Really doesn't sound right too me.

    I've had it on VCDS with no faults showing.

    Is it me or could there be something wrong?

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  3. #2
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    Check your DV. If thats blown, replace it, and then you'll feel the turbo. Even if its not blown, worth replacing to the newer metal style.

    If its still slow, remap.

  4. #3
    rowdyboy's Avatar
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    The idling noise is a trait of that engine, there's quite a few threads on it. It's normal.
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  5. #4
    Brendan12's Avatar
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    Quote Originally Posted by ChrisFurlong View Post
    Check your DV. If thats blown, replace it, and then you'll feel the turbo. Even if its not blown, worth replacing to the newer metal style.

    If its still slow, remap.
    Which metal style do I need to change it too? Will it be ok with a remap then?

    Quote Originally Posted by rowdyboy View Post
    The idling noise is a trait of that engine, there's quite a few threads on it. It's normal.
    Ok thanks for the info

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    Quote Originally Posted by Brendan12 View Post
    Which metal style do I need to change it too? Will it be ok with a remap then?



    Ok thanks for the info
    You need the revised OEM version "D" diverter valve. My diverter valve failed and the car was flat as hell.
    Remap will transform the car mate get it done stock 2.0T aint that quick could just be that depends what your used too?

  7. #6
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    Quote Originally Posted by Marrow View Post
    You need the revised OEM version "D" diverter valve. My diverter valve failed and the car was flat as hell.
    Remap will transform the car mate get it done stock 2.0T aint that quick could just be that depends what your used too?
    I took it out today and it seemed fine. I think it's just me.

    My previous car was an Audi A3 3.2 V6 and before that a Focus ST running 300bhp. That's probably why I think it's slow lol

  8. #7
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    my 2.0t feels slow too even after a remap,no fault codes to show anything wrong either,no hissing of boost leaks but no gauge to show boost,my old 1.8t was quicker and more economical its just that these cars are very smooth and efficient and dont feel fast,had a Focus 280 bhp last myself a totally different animal which was exciting and begged to be driven,that too was more economical.

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    No a remapped 2.0t should feel fast mine sure does and I have owned various quick cars ! I would check MAF and DV if I were you ?

  10. #9
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    Yeah I've owned a 3.2 A6 and a 3.2 A4 and the remapped 2.0T feels faster than both of those. It should be faster as well in theory, as the 2.0T is lighter, and has just as much or maybe a few more BHP than a 3.2. You will get the turbo lag, but if your in sport mode you will not notice any.

    My advice, get the revision D DV, get a remap. Then you should be happy. If not, then look into a K04.

  11. #10
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    my apr mapped 2.0t quattro accelerates like this,30-50 (3rd) 4.48,50-70 (4th) 6.2,60-80 (5th) an agonising 12.3

  12. #11
    mikeyw's Avatar
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    Quote Originally Posted by goon View Post
    my apr mapped 2.0t quattro accelerates like this,30-50 (3rd) 4.48,50-70 (4th) 6.2,60-80 (5th) an agonising 12.3
    Well 60-80 should be 3rd really. Never really timed mine so I can't compare. It's an odd thing to try explain, but mine feels as fast as it should. It's a bit quicker than my old type-r, but much more torquey.
    Last edited by mikeyw; 14th July 2011 at 21:55.

  13. #12
    solaris's Avatar
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    FYI part number for revised piston type diverter valve is 06H-145-710-D and its available on ebay (item number 320644710504)
    If it's not longitudinal and it's not Quattro..it's not an Audi
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  14. #13
    Brendan12's Avatar
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    Quote Originally Posted by solaris View Post
    FYI part number for revised piston type diverter valve is 06H-145-710-D and its available on ebay (item number 320644710504)
    Cheers. I think my engine code is BPB which isn't covered there. Will double check though.

  15. #14
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    My engine code is BGB, not listed there, and it fitted no problems.

    Give Audi a call, give them your chassis number and ask them to check what DV will fit. If they come back saying revision B, then it will definately fit as its the same design. They should tell you to order a revision D as its the updated version and the B is obsolete.

  16. #15
    Brendan12's Avatar
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    After going out in my mates MKV Golf GTi which is standard, I now believe there is definately something wrong with my car.

    The Golf pulled well in all gears, had bags of power everywhere. My A4 seems so guttless in comparison.
    Now - Ford Focus RS (305 bhp) - 2009

    Previous Cars

    A4 2.0 TFSi S-Line (251 bhp) - 2005
    Audi A3 3.2 Quattro Sport (250 bhp) - 2004
    Ford Fiesta ST (150 bhp) - 2006
    Ford Focus ST2 (290 bhp) - 2009
    Skoda Octavia vrS (215 bhp) - 2001
    Volkswagen Golf GTi Turbo (230 bhp) - 2001

  17. #16
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    Get your codes read, and go from there.

  18. #17
    Collecting Rings

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    ....are you entitled to new coil packs under the "recall" that isn't a recall? I was and it feels better still after those.. more MPG i'm certain (long journeys, 2100 miles a month, plenty of time for comparison!)

  19. #18
    Brendan12's Avatar
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    Quote Originally Posted by ChrisFurlong View Post
    Get your codes read, and go from there.
    Ive checked them and there aren't any.

    Quote Originally Posted by OxfordRich View Post
    ....are you entitled to new coil packs under the "recall" that isn't a recall? I was and it feels better still after those.. more MPG i'm certain (long journeys, 2100 miles a month, plenty of time for comparison!)
    Yeah it's there getting them done as we speak.
    Now - Ford Focus RS (305 bhp) - 2009

    Previous Cars

    A4 2.0 TFSi S-Line (251 bhp) - 2005
    Audi A3 3.2 Quattro Sport (250 bhp) - 2004
    Ford Fiesta ST (150 bhp) - 2006
    Ford Focus ST2 (290 bhp) - 2009
    Skoda Octavia vrS (215 bhp) - 2001
    Volkswagen Golf GTi Turbo (230 bhp) - 2001

  20. #19
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    Did you check for codes using VAG COM or a portable codes scanner?

  21. #20
    Brendan12's Avatar
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    Quote Originally Posted by ChrisFurlong View Post
    Did you check for codes using VAG COM or a portable codes scanner?
    Yeah and it didn't show anything which is why I'm confused. There is definately a problem, it's not just me now. When my old A3 went in for coil packs, I had an A3 2.0 TFSI as a courtesy car and again it was a totally different animal.
    Now - Ford Focus RS (305 bhp) - 2009

    Previous Cars

    A4 2.0 TFSi S-Line (251 bhp) - 2005
    Audi A3 3.2 Quattro Sport (250 bhp) - 2004
    Ford Fiesta ST (150 bhp) - 2006
    Ford Focus ST2 (290 bhp) - 2009
    Skoda Octavia vrS (215 bhp) - 2001
    Volkswagen Golf GTi Turbo (230 bhp) - 2001

  22. #21
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    Hmm.... well thats got me stumped then. Might be worth taking it to a VAG specialist and seeing what they say.

  23. #22
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    Are you sure its a turbo? Audi made a 2.0FSI non turbo. I'm sure your correct, but it was the only thing I can think of.

  24. #23
    Brendan12's Avatar
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    Quote Originally Posted by ChrisFurlong View Post
    Hmm.... well thats got me stumped then. Might be worth taking it to a VAG specialist and seeing what they say.
    Yeah and me. I took the Audi technician out in it today and even he agreed it was down on power quite a bit.
    Now - Ford Focus RS (305 bhp) - 2009

    Previous Cars

    A4 2.0 TFSi S-Line (251 bhp) - 2005
    Audi A3 3.2 Quattro Sport (250 bhp) - 2004
    Ford Fiesta ST (150 bhp) - 2006
    Ford Focus ST2 (290 bhp) - 2009
    Skoda Octavia vrS (215 bhp) - 2001
    Volkswagen Golf GTi Turbo (230 bhp) - 2001

  25. #24
    Brendan12's Avatar
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    Quote Originally Posted by ChrisFurlong View Post
    Are you sure its a turbo? Audi made a 2.0FSI non turbo. I'm sure your correct, but it was the only thing I can think of.
    Well the turbo under the bonnet gives it away slightly lol
    Now - Ford Focus RS (305 bhp) - 2009

    Previous Cars

    A4 2.0 TFSi S-Line (251 bhp) - 2005
    Audi A3 3.2 Quattro Sport (250 bhp) - 2004
    Ford Fiesta ST (150 bhp) - 2006
    Ford Focus ST2 (290 bhp) - 2009
    Skoda Octavia vrS (215 bhp) - 2001
    Volkswagen Golf GTi Turbo (230 bhp) - 2001

  26. #25
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    Just scanned my car with VCDS:


    1 Fault Found:
    000665 - Boost Pressure Regulation: Control Range Not Reached
    P0299 - 002 - Lower Limit Exceeded
    Freeze Frame:
    Fault Status: 01100010
    Fault Priority: 0
    Fault Frequency: 1
    Mileage: 85458 km
    Time Indication: 0

    Freeze Frame:
    RPM: 4631 /min
    Load: 77.2 %
    Speed: 104.0 km/h
    Temperature: 79.0°C
    Temperature: 25.0°C
    Absolute Pres.: 1000.0 mbar
    Voltage: 13.843 V


    Any ideas?
    Last edited by Brendan12; 24th July 2011 at 13:14.
    Now - Ford Focus RS (305 bhp) - 2009

    Previous Cars

    A4 2.0 TFSi S-Line (251 bhp) - 2005
    Audi A3 3.2 Quattro Sport (250 bhp) - 2004
    Ford Fiesta ST (150 bhp) - 2006
    Ford Focus ST2 (290 bhp) - 2009
    Skoda Octavia vrS (215 bhp) - 2001
    Volkswagen Golf GTi Turbo (230 bhp) - 2001

  27. #26
    mikeyw's Avatar
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    Low boost pressure is what it sounds like then. Leak, faulty sensor or turbo?

  28. #27
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    I'm not sure what value it should be exactly, but 1000mbar sounds a bit low, that would be atmospheric pressure. From that I'd definutely say you've got a boost leak somewhere

    Four Sprung Ducks

  29. #28
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    Almost exactly the same as I got before I changed my DV....

    1 Fault Found:
    000665 - Boost Pressure Regulation: Control Range Not Reached
    P0299 - 002 - Lower Limit Exceeded
    Freeze Frame:
    Fault Status: 01100010
    Fault Priority: 0
    Fault Frequency: 1
    Mileage: 125556 km
    Time Indication: 0
    Freeze Frame:
    RPM: 4437 /min
    Load: 91.3 %
    Speed: 48.0 km/h
    Temperature: 84.0°C
    Temperature: 35.0°C
    Absolute Pres.: 1010.0 mbar
    Voltage: 13.589 V


    So it is your DV. Spend £50, and about an hour and it'll be fixed.

  30. #29
    Brendan12's Avatar
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    Thanks, that was on my list of things to do. I'll get that ordered anyway. Would I not hear it fluttering if my diverter valve was broken?
    Now - Ford Focus RS (305 bhp) - 2009

    Previous Cars

    A4 2.0 TFSi S-Line (251 bhp) - 2005
    Audi A3 3.2 Quattro Sport (250 bhp) - 2004
    Ford Fiesta ST (150 bhp) - 2006
    Ford Focus ST2 (290 bhp) - 2009
    Skoda Octavia vrS (215 bhp) - 2001
    Volkswagen Golf GTi Turbo (230 bhp) - 2001

  31. #30
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    No you won't hear anything. The holes are really quite small, but seem to let all the air out! You might hear a little bit more woosh when you upgrade.

  32. #31
    Brendan12's Avatar
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    Quote Originally Posted by ChrisFurlong View Post
    No you won't hear anything. The holes are really quite small, but seem to let all the air out! You might hear a little bit more woosh when you upgrade.
    Thanks I'll get one ordered!
    Now - Ford Focus RS (305 bhp) - 2009

    Previous Cars

    A4 2.0 TFSi S-Line (251 bhp) - 2005
    Audi A3 3.2 Quattro Sport (250 bhp) - 2004
    Ford Fiesta ST (150 bhp) - 2006
    Ford Focus ST2 (290 bhp) - 2009
    Skoda Octavia vrS (215 bhp) - 2001
    Volkswagen Golf GTi Turbo (230 bhp) - 2001

  33. #32
    Brendan12's Avatar
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    Little Update:

    I bought a Revision D Diverter valve and fitted it the weekend. Now I have full boost! I knew the car wasn't right and the valve I had on the car was Revision B and had a huge split in it!

    Thanks for all the advice!
    Now - Ford Focus RS (305 bhp) - 2009

    Previous Cars

    A4 2.0 TFSi S-Line (251 bhp) - 2005
    Audi A3 3.2 Quattro Sport (250 bhp) - 2004
    Ford Fiesta ST (150 bhp) - 2006
    Ford Focus ST2 (290 bhp) - 2009
    Skoda Octavia vrS (215 bhp) - 2001
    Volkswagen Golf GTi Turbo (230 bhp) - 2001

  34. #33
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    Knew that would be the problem, its amazing the difference that little thing makes isn't it. Glad your sorted.

  35. #34
    Brendan12's Avatar
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    Quote Originally Posted by ChrisFurlong View Post
    Knew that would be the problem, its amazing the difference that little thing makes isn't it. Glad your sorted.
    Yep made a massive difference. A lot happier with the car now! Thanks!
    Now - Ford Focus RS (305 bhp) - 2009

    Previous Cars

    A4 2.0 TFSi S-Line (251 bhp) - 2005
    Audi A3 3.2 Quattro Sport (250 bhp) - 2004
    Ford Fiesta ST (150 bhp) - 2006
    Ford Focus ST2 (290 bhp) - 2009
    Skoda Octavia vrS (215 bhp) - 2001
    Volkswagen Golf GTi Turbo (230 bhp) - 2001

  36. #35
    audicruiser's Avatar
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    I changed mine to Rev D last month. I had Rev C on mine and though it hadn't split, I changed it as I have had it remapped. Remapped 2.0T is how they should be from the factory, well worth looking into...
    Scott

    Audi A3 Sportback 2.0T Quattro S-Line 2007 8P2
    Lava Grey, Exclusive Line Black/Silver Leather, Heated Seats, Bose, RNS-e, iPod, Auto Lights & Wipers, Interior Light Pack

  37. #36
    Brendan12's Avatar
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    Quote Originally Posted by audicruiser View Post
    I changed mine to Rev D last month. I had Rev C on mine and though it hadn't split, I changed it as I have had it remapped. Remapped 2.0T is how they should be from the factory, well worth looking into...
    Yeah I will be getting it done soon!
    Now - Ford Focus RS (305 bhp) - 2009

    Previous Cars

    A4 2.0 TFSi S-Line (251 bhp) - 2005
    Audi A3 3.2 Quattro Sport (250 bhp) - 2004
    Ford Fiesta ST (150 bhp) - 2006
    Ford Focus ST2 (290 bhp) - 2009
    Skoda Octavia vrS (215 bhp) - 2001
    Volkswagen Golf GTi Turbo (230 bhp) - 2001

  38. #37
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    Hmmm this is interesting!! - whats the chances of my 06 having the piston type already? - I've had it re-mapped but the power doesnt seem smooth or consistent, is this mod a no brainer, ie do it anyway type thing?

  39. #38
    chrisa4quat's Avatar
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    The fault codes definitely relate to the DV. says on the test plan check as diaphragm is most likely split. i am thinking of changing mine as i have fitted the forge spacer and it doesn't seem to perform as it should.

  40. #39
    Brendan12's Avatar
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    Yeah I changed it to the revision D part and now it is back to how it should be
    Now - Ford Focus RS (305 bhp) - 2009

    Previous Cars

    A4 2.0 TFSi S-Line (251 bhp) - 2005
    Audi A3 3.2 Quattro Sport (250 bhp) - 2004
    Ford Fiesta ST (150 bhp) - 2006
    Ford Focus ST2 (290 bhp) - 2009
    Skoda Octavia vrS (215 bhp) - 2001
    Volkswagen Golf GTi Turbo (230 bhp) - 2001

  41. #40
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    Could anyone give me an idea where and what to look for? - my 18T was easy it was smack bang on top of the engine... I had a quick look lunchtime but I cant see it... :S

 

 
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