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Jerky drive

Discussion in 'A3/S3 Forum (8L Chassis)' started by SimonA3T, Nov 17, 2010.

  1. SimonA3T
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    SimonA3T Member

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    Hey guys :)

    My A3 idles fine when still, but if i drive off in 1st gear it feels very jerky, like if I accelerate a little bit it feels alot and if I lift off the accelerator it feels jerky again.

    The same for in 2nd gear too.

    Anyone got any ideas? :(
    #1
  2. reptor245
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    reptor245 Active Member

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    Check and clean the MAF, Clean the Throttle body and check the connections to the Ignition Amp.
    #2
  3. SimonA3T
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    SimonA3T Member

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    How do I clean the MAF?

    I dont do much work on cars lol
    #3
  4. s3dave
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    s3dave TFSI Hybrid

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    Could be engine/gearbox mountings/bushes
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  5. DaveA3
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    DaveA3 Audi A-Trizzle!

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    ur not jus talkin in the morning when its cold are ya?
    #5
  6. SimonA3T
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    SimonA3T Member

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    No, its all the time
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  7. gussyldr
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    gussyldr Member

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    my a3 does this all the time aswell i think its engine mounts? also when i rev my car the engine moves quite a bit must be engine mounts! does any one know how much engine mounts for a a3 1.8t?
    #7
  8. reptor245
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    reptor245 Active Member

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    Waks Wide Web
    #8
  9. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator

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    On mine its an air leak, my TIP is loose causing un metered air into the system
    #9
  10. SimonA3T
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    SimonA3T Member

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    Well had it scanned today and had twofaults reported....

    17705 Pressure drop between turbo and throttle valve - Intermittent

    17545 Fuel trim Bank 1 (Add): System too rich - Intermittent

    Anyone had any experience with these before?
    #10
  11. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator

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    That will more likely be a boost leak or broken pipe

    I get a similar code to the 2nd one, except mine shows too weak iirc
    #11

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