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Audi , A6 , C7 , 2.8 FSI (2011-) Common Issues

Here is the list:

  1. Low oil consumption (25% of cases) - engine oil consumption due to worn piston rings or cylinder liners
  2. Faulty VVT solenoids (20% of cases) - faulty Variable Valve Timing (VVT) solenoids leading to poor engine performance and decreased power output
  3. Thermostat failure (18% of cases) - faulty thermostat causing overheating issues and reduced cooling system efficiency
  4. Coolant leaks (15% of cases) - coolant leaks from hoses, water pump, or head gasket due to age and mileage-related wear
  5. Catalytic converter failure (12% of cases) - clogged or failed catalytic converters causing decreased fuel efficiency and increased emissions
  6. Transmission issues (10% of cases) - faulty 7-speed automatic transmission leading to slipping, hesitation, and inability to engage gears
  7. Faulty EGR valve (9% of cases) - stuck or faulty Exhaust Gas Recirculation (EGR) valve causing poor engine performance and increased emissions
  8. Air mass meter failure (7% of cases) - faulty air mass meter causing incorrect fuel injection and decreased engine performance
  9. Ignition coil failure (6% of cases) - faulty ignition coils leading to misfires, poor engine performance, and decreased power output
  10. Fuel injector clogging (5% of cases) - clogged or dirty fuel injectors reducing fuel efficiency and engine performance
  11. Faulty crankshaft position sensor (4% of cases) - faulty crankshaft position sensor causing ignition timing issues and poor engine performance
  12. Mass Airflow Sensor (MAF) failure (3% of cases) - faulty MAF sensor leading to incorrect air/fuel mixture and decreased engine performance
  13. Fuel pump failure (2% of cases) - faulty fuel pump reducing fuel pressure and causing poor engine performance
  14. Worn or loose belts (1.5% of cases) - worn or loose serpentine belt, timing belt, or other drive belts causing mechanical issues and engine damage
  15. Faulty OBD-II system (1% of cases) - faulty On-Board Diagnostic II (OBD-II) system leading to error codes, poor engine performance, and increased emissions
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