Service bulletins for the 2001 Audi A6
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
106 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Engine are shown. Show all
| 0504 | 2005-08-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. THREE WAY CATALYST, CATALYTIC EFFICIENCY DIAGNOSTIC TROUBLE CODES (DTCS) STORED IN DTC MEMORY. *TT |
|---|---|
| 190504 | 2005-07-29. Service bulletin. ENGINE AND ENGINE COOLING. THE COOLANT RESERVOIR IS DIAGNOSED TO BE LEAKING AND INTENDED TO BE REPLACED. *TT |
| 0502 | 2005-07-29. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. UPDATE PROGRAMMING FOR CATALYTIC CONVERTER SYSTEM (IC). *TT UPDATE. *TT |
| 0501 | 2005-05-19. Service bulletin. ENGINE AND ENGINE COOLING. SECONDARY AIR INJECTION (AIR) PUMP MOTOR -V101- IS NOISY. *TT |
| 0406 | 2005-02-03. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. COOLANT LEAK AT OIL COOLER HOSES. *TT |
| 0402 | 2004-11-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VALVE COVER, DIAGNOSING OIL LEAKAGE FROM GASKETS. *TT |
| 0406 | 2004-11-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. UDPATE PROGRAMMING (FLASHING) ENGINE CONTROL MODULE (ECM) TO CORRECT COLD START ENGINE STUMBLE. *TT |
| 0421 | 2004-10-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. EMISSION WARRANTY EXTENSION FOR OXYGEN SENSOR. *TT |
| 0401 | 2004-08-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. OIL LEAK IN AREA OF TURBOCHARGER. *MJ |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.