Audi Trouble Codes and Known Issues

Audi uses the same TSI (TFSI) and TDI engines as the rest of the Volkswagen Group, with more power and more complex electronics. Timing, crankcase ventilation and boost codes are the most searched.

Most searched models: A1, A3, A4, A5, A6, Q2, Q3, Q5 and Q7.

Common problems on Audi vehicles

• Timing chain and tensioner on first-generation 1.8 and 2.0 TFSI (EA888) engines.
• Oil consumption on some 2008 to 2011 2.0 TFSI engines, caused by the piston rings.
• Oil separator (PCV).
• Ignition coils.

Tips for diagnosing an Audi

• If your 2.0 TFSI burns oil, ask the dealer whether your engine was covered by a campaign or update.

Do you have several codes at once? Use the free multi-code diagnosis for Audi: it sorts the codes by priority and shows these make-specific notes. Below are the codes with documented quirks on Audi vehicles.

Make notes are a guide based on well-known common failures. Always confirm with the manufacturer's documentation for your engine and model year.