p0401

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    2007 BMN Diagnosis thoughts Boost, Intake or EGR?

    So, I recently got a P0401 Exhaust Gas Recirculation (EGR) System: Insufficient Flow Detected. Stripped and cleaned the EGR but mil light returned on test drive. When I cleared the fault when warm, mil light did not return during several hours of driving until cold start. Then back on...
  2. G

    Troubleshooting issues like stiff brake, overboosting, insufficient flow (EGR), etc

    Hi! I bought an A3 2.0 TDI (8PA BKD 2004) Sportback about 6 months ago, and had a fair amount of minor issues with it. The solutions were scattered around and I want to put into a single post for future reference and for others who come from Google. I will try to go chronologically. Hot start...
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