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Poor Fuel Economy. Help Please

mattf1000 Aug 17, 2014

  1. mattf1000

    mattf1000 New Member

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    Hi I've got a 2000 A3 tdi 110hp non pd. The fuel economy is bloody awful 30mpg at best. Have got vag commander but not installed it yet. Car runs fine as far as I can tell no misfires or judders pulls okay for a 110 tdi.
    Anyone got any ideas i was thinking cat. It's been serviced a couple of weeks ago all genuine filters and oil etc...
     
  2. JonnyDerv

    JonnyDerv Active Member

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    Dirty or faulty maf? Egr blocked/ intake manifold? Is there much black smoke?
     
  3. vw754

    vw754 vorsprung Durch Technik

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    faulty coolant sensnor.........non gens around £8 try that first very common failure
     
  4. amiram

    amiram TDI

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    Check for fault codes
     

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