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Audi, TT Common Issues

  1. Coolant leaks (23-30% of all TTs)
  2. Faulty oxygen sensors (14-20%)
  3. Transmission problems (10-15%)
  4. Brake wear and tear (8-12%)
  5. Electrical system malfunctions (6-9%)
  6. Rear wheel bearing failure (4-7%)
  7. Timing chain tensioner issues (3-5%)
  8. Engine oil leaks (2-4%)
  9. Faulty cruise control systems (1-3%)
  10. Sunroof problems (1-2%)
  11. Rear differential issues (0.5-2%)
  12. Electronic stability control system failures (0.5-2%)
  13. Fuel pump replacement due to corrosion (0.2-1%)
  14. Air conditioning system malfunctions (0.2-1%)
  15. Water pump failure (0.1-1%)
  16. Rear axle bearing failure (0.05-0.5%)
  17. Clutch master cylinder issues (0.05-0.3%)
  18. Ignition switch problems (0.02-0.2%)
  19. Fuel sender unit replacement due to corrosion (0.01-0.1%)
  20. Engine oil pressure sensor failure (0.005-0.05%)
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