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Thread: S3 Flat Spot?

  1. #1
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    S3 Flat Spot?

    Hi Guys,

    Have recently noticed that in 2nd and 3rd (normally) im not getting the same kick i used when putting my foot down.

    Now this only occurs sometimes also, when i do get the correct boost, i can tell right away, hence the concern over this "flat spot"

    After reading a few posts, and speaking to a local specialist, i believe this could be the MAF sensor? Are they cheap to replace? And is this normally the case for the problem i have?

    Your advice is appreciated

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  3. #2
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    quick one, is the air flow meter, the same as the MAF?

  4. #3
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    anyone?

  5. #4
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    Could be MAF, DV, N75, Leaking Hose. Lots of things really.

    New MAF is 88 from Audi.

    If you know somebody with VAG-COM then that's be where i'd start.

    I doubt a problem like this is generating any specific fault codes but it's worth checking. If not, you need to use VAG-COM to do some data logging, i'd start with the following:

    g/s airflow - will tell you if your MAF is working

    Boost Requested vs Actual - Will tell you if you are generating the correct amount of boost from the turbo; indicative of a number of things such as leaking hose, faulty DV etc.

    % Duty Cycle (N75) - Shows whether the N75 is opening the turbo wastegate the correct amount at the correct times; indicative of a simple split hose or a stuffed N75

  6. #5
    hud at ye bam

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    You can get a new MAF (Mass Air Flow) as an exchange part for your local stealer. 60 or 80 quid. Piece of pi55 to fit.
    [/sarcasm]

  7. #6
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    Quote Originally Posted by vishal
    quick one, is the air flow meter, the same as the MAF?
    Yes, same thing
    Dolphin Grey Audi S3 8P

  8. #7
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    Cars booked in at Audi in amersham tomorrow ( way cheaper than crazy london rates) and im 99% sure the problem i have is the MAF, as all hoses etc have been checked.

    Now they want 170 + vat for the part and to fit it! Which is a bit over the top, so, wanted to know if any of you have pics, or a brief description on how to replace this, as if its that simple, im sure ill be able to do it

  9. #8
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    vorsprung Durch Technik

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    take you 15 minutes to take your old maf out and install new one!!
    2 screws thats it! dont let them ripp you off.

  10. #9
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    what a bunch of rip off merchants!! Maximum of 10 minutes to fit one. Charging you about 1hr 45!

 

 

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