NHTSA lists 4 safety recalls and 219 owner complaints for the 2005 Audi A4. Most complaints involve exterior lighting (101) and air bags (54). The EPA rates it 19–24 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
101 reports
“Headlights flickering. Must turn off the headlights and turn them back on for this issue to go away. All headlight components were replaced including the bulb and this issue still is there. The Audi dealerships seem to not know how to fix this issue. This issue is only on the left side/driver side. The dealer could not duplicate this issue on the right side/passenger side. All new parts were installed.”
Owner complaint to NHTSA·Filed Aug 10, 2022·Exterior lightingODI 11478628
Air bags
54 reports6 crashes
“The contact's husband owned a 2005 Audi A4. The contact received several recall letters and cards from the NHTSA and Audi manufacturer for a Takata Air Bag recall. The contact stated that the last notification received stated that the owner could die if the recall was not completed. The contact was adamant and would like the mailing address to be removed from the recall distribution list because the vehicle was no longer owned. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance.”
Owner complaint to NHTSA·Filed Jun 18, 2026·Air bagsODI 11744972
Electrical system
24 reports3 fires
“The car is completely defective,total engine, gasket,water pump,intake manifold,airbag, transmission,torque,drive shaft, universal joints,all rear axles,wheel bearing,bought at auction Aug 19,2024, $4000, the as is was so small and on the back of a sheet we did not see it,we are senior,”
Owner complaint to NHTSA·Filed Jan 6, 2025·Electrical system, Air bags, EngineODI 11634360
4 safety recalls as of Nov 10, 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 2005 Audi A4 problems?
Owners filed 219 complaints with NHTSA. The most-cited components are exterior lighting (101), air bags (54), electrical system (24). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
What MPG does the 2005 Audi A4 get?
The EPA rates the 2005 Audi A4 at 19–24 mpg combined, depending on engine and drivetrain (12 versions rated).