NHTSA lists 2 safety recalls and 30 owner complaints for the 2006 Audi S4. Most complaints involve exterior lighting (22) and air bags (7). The EPA rates it 16 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.
Verbatim excerpts from NHTSA complaints, by component
Exterior lighting
22 reports
“AS MANY OTHERS HAVE NOTICED ON THE B7 MODELS OF AUDI'S. THE PASSENGER HEADLIGHT WILL FLICKER AND GO OUT AT RANDOM TIMES, IT IS NOT A BULB PROBLEM IT HAS BEEN REPLACED MULTIPLE TIMES. IT IS CONCERNING WHEN DRIVING AT NIGHT AND RANDOMLY MY HEADLIGHT WILL SHUT OFF. SOMETIMES WHEN I SHUT THE CAR OFF AND BACK IN IT WILL RETURN. THERE IS AN ELECTRICAL PROBLEM WITH THESE HEADLIGHTS AS I HAVE READ IN OTHER PLACES. VERY DANGEROUS AND CONCERNING THEY WANT TO CHARGE 1000+ DOLLARS FOR EVERY CUSTOMER TO PUT IN A NEW HEADLIGHT. IT IS THEIR DUTY TO ENSURE SAFETY OF THEIR CUSTOMERS.”
Owner complaint to NHTSA·Filed Jan 17, 2019·Electrical system, Exterior lightingODI 11170511
Air bags
7 reports
“TAKATA RECALL. I RECEIVED MY FIRST NOTICE OF THIS RECALL ON 1/17/17. IT IS CURRENTLY 10/31/17 WITH THE REPAIR NOT YET AVAILABLE. I'VE CALLED THE DEALERSHIP MANY TIMES TO NO AVAIL. I WAS AT DEALERSHIP YESTERDAY AND THEY TOLD ME THEY DO NOT HAVE THE PARTS. WHEN WILL THIS HIGHLY DANGEROUS RECALL REPAIR BE AVAILABLE? THANK YOU.”
Owner complaint to NHTSA·Filed Oct 31, 2017·Air bagsODI 11041664
Electrical system
4 reports
“HID XENON HEADLIGHTS RANDOMLY FLICKER AND SHUT OFF DURING DRIVING. IT'S GETTING WORSE. DEALERS "NEVER FOUND" PROBLEM WHICH RECURS CONTINUALLY SO THEY NEVER FIXED THIS ISSUE UNDER WARRANTY AFTER BEING ASKED SEVERAL TIMES SINCE THE VEHICLE WAS NEW. 100'S OF OTHER STORIES ABOUT THIS ONLINE. HUGE SAFETY ISSUE WHEN HEADLIGHTS JUST QUIT AT RANDOM. *TR”
Owner complaint to NHTSA·Filed Mar 14, 2012·Electrical system, Exterior lighting, VisibilityODI 10451576
2 safety recalls as of Oct 28, 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 S4 problems?
Owners filed 30 complaints with NHTSA. The most-cited components are exterior lighting (22), air bags (7), electrical system (4). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
What MPG does the 2006 Audi S4 get?
The EPA rates the 2006 Audi S4 at 16 mpg combined, depending on engine and drivetrain (6 versions rated).