2009 Audi A6 Quattro Service and Repair Manual

This is the factory-level service and repair manual for the 2009 Audi A6 Quattro, covering both the 3.0L supercharged V6 and 4.2L naturally aspirated V8 across the Base, Elite and Avant trims.

Engines covered

• 3.0L V6 — DOHC, supercharged, gasoline
• 4.2L V8 — DOHC, naturally aspirated, gasoline
• 3.2L V6 — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan
• 4-door wagon

Trims covered

• Base
• Avant
• Elite

Known issues on the 2009 A6 Quattro. Four recalls are on federal record for this model year, all tied to the passenger frontal air bag inflator module. Volkswagen Group of America issued separate regional campaigns covering these vehicles because degraded propellant in the inflator can cause it to explode or rupture on deployment, sending sharp metal fragments into the driver or other occupants and risking serious injury or death. Owners have filed 21 complaints for the year.

Whether you're confirming inflator replacement work, chasing a supercharger-side issue on the 3.0L, or working through routine service on the 4.2L V8, this manual keeps you on the OEM procedure and the correct specification for your specific 2009 A6 Quattro.