NHTSA lists 3 safety recalls and 298 owner complaints for the 2006 Audi A4. Most complaints involve exterior lighting (160) and air bags (74). The EPA rates it 18–24 mpg combined.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2005-2008 Audi A4 Sedan, A4 Avant, S4 Avant and S4 Sedan, 2007-2008 RS4 Sedan, 2004 RS4 Cabriolet, 2007-2009 A4 Cabriolet and S4 Cabriolet, 2005-2011 A6 Sedan, 2006-2011 A6 Avant, and 2007-2011 S6 Sedan vehicles. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these inflators may explode due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2009 Audi A4 Cabriolet, S4 Cabriolet, A6 Avant, A6 Sedan and S6 Sedan vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, the District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B."
Additionally, unless included in "Zone B" above, Volkswagen is recalling certain 2005-2008 Audi A4 Avant, A4 Sedan, A6 Sedan, S4 Avant and S4 Sedan vehicles, 2007-2008 A4 Cabriolet, RS4 Sedan, S4 Cabriolet and S6 Sedan vehicles, and 2006-2008 A6 Avant and 2008 RS4 Cabriolet vehicles originally sold, or ever registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming.
These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2004-2008 Audi A4, and 2005-2011 Audi A6 vehicles originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or "Zone A."
Additionally, unless included in "Zone A" above, Volkswagen is recalling certain model year 2004-2008 Audi A4, and 2005-2008 Audi A6 vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B."
Lastly, unless included in "Zone A" or "Zone B" above, Volkswagen is recalling model year 2004 Audi A4 vehicles originally sold, or registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming.
These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Verbatim excerpts from NHTSA complaints, by component
Exterior lighting
160 reports1 crash
“LEFT HEAD LIGHT FLICKERS AND SHUTS ITSELF OFF AFTER VEHICLE IS DRIVEN AND THE LIGHTS HAVE BEEN ON FOR ABOUT 5 MINUTES. THE WARNING DISPLAY ON THE DASHBOARD GIVES A "LEFT HEADLIGHT LEVEL" ERROR CODE.”
Owner complaint to NHTSA·Filed Oct 29, 2019·Exterior lightingODI 11271751
Air bags
74 reports6 crashes
“The contact owns a 2006 Audi A4. The contact stated that while driving approximately 45 mph, the wife crashed into the rear of a second vehicle. During the crash the front driver side air bag did not deploy, however, the passenger side airbag did deploy, and both the front and rear driver side and passenger side headrest restraints activated. The contact indicated that no passengers were present in the vehicle during the crash. No injuries were reported. A police report was taken at the scene and the vehicle was towed away. The cause of the failure was not yet determined. The manufacturer was not contacted. The local dealer was notified. The failure mileage was 160,000.”
Owner complaint to NHTSA·Filed Nov 8, 2021·Air bagsCrash reportedODI 11439731
Electrical system
22 reports1 crash1 fire
“THE RIGHT HEADLIGHT KEEPS FLICKERING. IT WILL TURN OFF SOMETIMES WHEN USING THE WINDSHIELD WIPERS, BUT OTHER THAN THAT, THE HEADLIGHT WORKS PERFECTLY FINE. WHEN IT FLICKERS, AN INDICATOR WARNING LIGHT ACTIVATES ON THE DASHBOARD. THIS SEEMS TO BE A WIRING PROBLEM. BOTH HEADLIGHTS WERE CHANGED AND BRAND NEW WHEN THE CAR WAS PURCHASED. TWO YEARS LATER, THIS FLICKERING BEGAN. THE ONLY WAY TO STOP THE FLICKERING OF THE HEADLIGHT IS TO COMPLETELY TURN OFF THE HEADLIGHTS FOR A FEW SECONDS, THEN TURN THEM BACK ON. EVERYTHING IS FINE AFTER THAT. PLEASE RECALL THIS ISSUE. I HAVE READ MANY POSTS ONLINE WITH OTHER AUDI A4 OWNERS HAVING THE SAME PROBLEM WITH THEIR VEHICLES.”
Owner complaint to NHTSA·Filed Jun 7, 2018·Electrical systemODI 11100414
3 safety recalls as of Oct 27, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
What are the most common 2006 Audi A4 problems?
Owners filed 298 complaints with NHTSA. The most-cited components are exterior lighting (160), air bags (74), electrical system (22). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
What MPG does the 2006 Audi A4 get?
The EPA rates the 2006 Audi A4 at 18–24 mpg combined, depending on engine and drivetrain (12 versions rated).