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2006 Audi S4

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

20 reports with mileage · 10 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Exterior Lighting. Review the 22 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 7 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports0 fire reports0 injury reports

What owners actually said

30 reports
35,000 miles · Feb 22, 2011
Exterior Lighting

MY HEADLIGHTS FLICKER ALMOST ALL THE TIME AND OCCASIONALLY GO OFF AS A RESULT. THIS PROBLEM HAS BEEN WIDESPREAD AS LITERALLY HUNDREDS OF PEOPLE IN THE AUDI ONLINE FORUMS ARE REPORTING THE SAME EXACT ISSUE. ONCE ONE OR BOTH HEADLIGHTS GO OUT, I GET AN ERROR MESSAGE STATING "LEFT HEADLIGHT DIPPED", "RIGHT HEADLIGHT DIPPED", OR B…

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MY HEADLIGHTS FLICKER ALMOST ALL THE TIME AND OCCASIONALLY GO OFF AS A RESULT. THIS PROBLEM HAS BEEN WIDESPREAD AS LITERALLY HUNDREDS OF PEOPLE IN THE AUDI ONLINE FORUMS ARE REPORTING THE SAME EXACT ISSUE. ONCE ONE OR BOTH HEADLIGHTS GO OUT, I GET AN ERROR MESSAGE STATING "LEFT HEADLIGHT DIPPED", "RIGHT HEADLIGHT DIPPED", OR BOTH. ONCE THE CAR IS TURNED OFF AND RESTARTED, LIGHT COMES BACK ON. THEY STILL FLICKER AND GO OUT AGAIN AT RANDOM INTERVALS AND RANDOM SIDES (LEFT AND RIGHT). THERE SHOULD BE A RECALL IN PLACE AS IT COSTS MANY HUNDREDS OF DOLLARS TO REPAIR, AND MANY TIMES, THE REPAIR DOESN'T FIX ANYTHING. IT IS SO WIDESPREAD, IT HAS REACHED EPIDEMIC PROPORTIONS AND IT HAS BECOME A REAL SAFETY HAZARD. THIS PROBLEM EFFECTS A WIDE RANGE OF AUDI MODELS AND YEARS AS REPORTED BY HUNDREDS OF OTHER PEOPLE EXPERIENCING THE SAME ISSUES OF VARIOUS YEARS AND MODELS. IT IS ALSO GROUNDS FOR A TRAFFIC VIOLATION IN MY STATE AS WELL AS MOST OTHERS. ADDITIONALLY, THE CAR NEEDS TO BE TURNED OFF, HEADLIGHTS TURNED OFF, THEN RESTARTED IN ORDER TO RESTART THE HEADLIGHT. THIS ACTION PRESENTS A MYRIAD OF SAFETY CONCERNS ITSELF AS THIS HAPPENS AT RANDOM TIMES DURING TRAFFIC. WITH THE REGULARITY OF THIS PROBLEM ACROSS MANY YEARS AND MODELS, AUDI SHOULD BE HELD ACCOUNTABLE AND PERFORM THE REPAIRS AT THEIR EXPENSE AS THIS IS CLEARLY A DESIGN OR IMPLEMENTATION FLAW. *TR

NHTSA ODI #10383933

50,000 miles · Jan 29, 2011
Electrical SystemExterior Lighting

AUDI 2006 S4, THERE IS A MORE FREQUENT OCCURRENCE OF MY "HEADLIGHTS DIPPING" MY XENON HEADLAMPS WILL STOP WORKING WHILE DRIVING, IT WOULD EITHER BE THE LEFT OR THE RIGHT, BUT NOT UNTIL LAST WEEK WHEN BOTH WENT OUT AT THE SAME TIME. I WOULD PUT CAR IN NEUTRAL WHILE DRIVING AND TURN CAR OFF AND BACK ON AND IT WILL RESET ITSELF AND…

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AUDI 2006 S4, THERE IS A MORE FREQUENT OCCURRENCE OF MY "HEADLIGHTS DIPPING" MY XENON HEADLAMPS WILL STOP WORKING WHILE DRIVING, IT WOULD EITHER BE THE LEFT OR THE RIGHT, BUT NOT UNTIL LAST WEEK WHEN BOTH WENT OUT AT THE SAME TIME. I WOULD PUT CAR IN NEUTRAL WHILE DRIVING AND TURN CAR OFF AND BACK ON AND IT WILL RESET ITSELF AND LIGHTS WILL THEN WORK, IT SEEMS TO STOP OCCURRING WHEN CAR IS WARMED UP AND IT IS WORSE WITH COLDER WEATHER AND VIBRATION OR BAD ROADS. IT WILL OCCASIONALLY OCCUR WHEN CAR IS EVEN WARM WELL AFTER 30 MINUTES, I AM NOW CONCERNED BECAUSE LAST WEEK BOTH WENT OUT AT THE SAME TIME, THAT HAD NEVER HAPPENED BEFORE, IT WAS ALWAYS ONE OR THE OTHER, IT HAS HAPPENED FOR THE PAST 18 MONTHS OR SO. AUDI HAS NO ANSWER, THEY HAVE ERRONEOUSLY REPLACED WORKING XENON LIGHTS, BALLASTS, ETC AND IT CONTINUES TO OCCUR TO MANY INDIVIDUALS THAT I READ UP ON IN AUDI FORUMS. FREQUENCY IS NOW EACH AND EVERY TIME I START CAR AND GET GOING LITERALLY FEET TO LESS THAN A BLOCK. WHEN IT FIRST STARTED, IT WAS ONCE A COUPLE OF WEEKS, THEN ONCE A WEEK, TO ONCE EVERY COUPLE OF DAYS, TO NOW EACH AND EVERY TIME AT LEAST A COUPLE OF TIMES UNTIL WARM. I AM IN COLDER CLIMATE, DETROIT, MI. *LN

NHTSA ODI #10379536

46,394 miles · Jan 23, 2011
Exterior Lighting

JUST PURCHASED A FORMERLY CERTIFIED 2006 AUDI S4 W/ 46K MILES AND FACTORY XENON LIGHTS. WHEN I TURN MY HEADLIGHTS ON, THE RIGHT XENON LIGHT GOES OUT INTERMITTENTLY, AND I GET A "RIGHT DIPPED HEADLIGHT" MESSAGE ON THE INFORMATION DISPLAY. THE RIGHT HEADLIGHT STAYS OFF UNTIL I TURN THE CAR OFF. USUALLY WHEN I RESTART THE CAR, T…

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JUST PURCHASED A FORMERLY CERTIFIED 2006 AUDI S4 W/ 46K MILES AND FACTORY XENON LIGHTS. WHEN I TURN MY HEADLIGHTS ON, THE RIGHT XENON LIGHT GOES OUT INTERMITTENTLY, AND I GET A "RIGHT DIPPED HEADLIGHT" MESSAGE ON THE INFORMATION DISPLAY. THE RIGHT HEADLIGHT STAYS OFF UNTIL I TURN THE CAR OFF. USUALLY WHEN I RESTART THE CAR, THE HEADLIGHT IS FINE. THE PROBLEM IS DANGEROUS BECAUSE THE LIGHT TURNS OFF WITHOUT WARNING, SO FAR IT HAS ONLY HAPPENED ON ONE SIDE, BUT I AM CONCERNED IT WILL AFFECT BOTH LIGHTS. DEALER STATES THEY HAVE ENCOUNTERED THE PROBLEM BEFORE, AND THAT REPLACING THE BALLAST WILL ADDRESS IT. *LN

NHTSA ODI #10378353

34,250 miles · Jan 19, 2011
Exterior Lighting

NO INCIDENTS OR CRASHES, YET. MY 2005.5 AUDI S4 WITH 35,800 MILES, HAS A CHRONIC PROBLEM WHERE THE HEADLIGHTS, LEFT OR RIGHT, FLICKER AND THEN TURN OFF INVOLUNTARILY. SOMETIMES ONLY ONE SIDE DOES THIS, MORE RECENTLY, BOTH HAVE BEEN TURNING OFF. WHEN THE LIGHT GOES OUT, A NOTICE APPEARS IN THE CENTER INFORMATION AREA OF "DIPPED H…

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NO INCIDENTS OR CRASHES, YET. MY 2005.5 AUDI S4 WITH 35,800 MILES, HAS A CHRONIC PROBLEM WHERE THE HEADLIGHTS, LEFT OR RIGHT, FLICKER AND THEN TURN OFF INVOLUNTARILY. SOMETIMES ONLY ONE SIDE DOES THIS, MORE RECENTLY, BOTH HAVE BEEN TURNING OFF. WHEN THE LIGHT GOES OUT, A NOTICE APPEARS IN THE CENTER INFORMATION AREA OF "DIPPED HEADLIGHT," EITHER RIGHT OR LEFT RESPECTIVELY. THE ONLY WAY TO RESTART THE LIGHT/S IS TO TURN THE LIGHT SWITCH OFF AND BACK ON MANUALLY. THIS ONLY TEMPORARILY RESETS THE HEADLIGHTS, AND THE SAME EVENTS START AGAIN SHORTLY THEREAFTER. *TR

NHTSA ODI #10377932

33,510 miles · Aug 20, 2010
Equipment Adaptive/mobilityExterior Lighting

I OWN A 2006 AUDI S4 WITH BI=XENON HID LIGHTS. NUMEROUS AMOUNTS OF TIMES THE INDICATION COMES UP THAT I HAVE A DIPPED HEADLIGHT. THIS IN TURN IS BECAUSE THE HEADLIGHT IS OFF AND I'M DRIVING AT NIGHT. THIS SAFETY VIOLATION WILL END UP COSTING ME EVERY TIME I GO TO THE DEALERSHIP TO GET NEW PARTS INSTALLED AND LABOR AND THE HIG…

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I OWN A 2006 AUDI S4 WITH BI=XENON HID LIGHTS. NUMEROUS AMOUNTS OF TIMES THE INDICATION COMES UP THAT I HAVE A DIPPED HEADLIGHT. THIS IN TURN IS BECAUSE THE HEADLIGHT IS OFF AND I'M DRIVING AT NIGHT. THIS SAFETY VIOLATION WILL END UP COSTING ME EVERY TIME I GO TO THE DEALERSHIP TO GET NEW PARTS INSTALLED AND LABOR AND THE HIGH PROBABILITY OF A TICKET FOR HAVING A HEAD LIGHT OUT FROM THE POLICE OR OTHER AGENCIES IN THE AREA. *TR

NHTSA ODI #10350845

39,000 miles · Feb 19, 2010
Exterior Lighting

MY 2006 AUDI S4'S LOW BEAM HEADLIGHTS FLICKER WHILE DRIVING ON VERY COLD DAYS. OCCASIONALLY, MY LEFT OR RIGHT HEADLIGHT WILL TURN OFF COMPLETELY. I HAVEN'T HAD BOTH GO OUT AT THE SAME TIME, BUT I AM WORRIED THAT THIS WILL OCCUR EVENTUALLY. THE FLICKERING IS VERY DANGEROUS AS IT HAPPENS AT LOW SPEED WHILE I AM DRIVING THROUGH …

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MY 2006 AUDI S4'S LOW BEAM HEADLIGHTS FLICKER WHILE DRIVING ON VERY COLD DAYS. OCCASIONALLY, MY LEFT OR RIGHT HEADLIGHT WILL TURN OFF COMPLETELY. I HAVEN'T HAD BOTH GO OUT AT THE SAME TIME, BUT I AM WORRIED THAT THIS WILL OCCUR EVENTUALLY. THE FLICKERING IS VERY DANGEROUS AS IT HAPPENS AT LOW SPEED WHILE I AM DRIVING THROUGH MY NEIGHBORHOOD. I AM WORRIED THAT I WILL NOT BE ABLE TO SEE CHILDREN CROSSING THE STREET GOING TO SCHOOL. I HAVE HAD THE CAR SERVICED BY THE AUDI DEALER FOR THIS ISSUE AND IT IS STILL OCCURRING. *TR

NHTSA ODI #10311980

Mileage unknown · Feb 9, 2010
Exterior Lighting

WHEN DRIVING MY 2006 AUDI S4 AT NIGHT, ONE OR BOTH OF THE RIGHT OR LEFT FRONT DIPPED HEADLIGHTS WILL FLICKER, AND THEN TEMPORARILY FAIL. THE CAR HAS CONTINUED INTERMITTENT PROBLEMS WITH THIS ISSUE, AND IN SEARCHING THE WEB, I FOUND A SITE THAT INDICATES AT LEAST 124 OTHER SIMILAR ISSUES: HTTP://WWW.AUDIZINE.COM/FORUM/SHOWTHR…

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WHEN DRIVING MY 2006 AUDI S4 AT NIGHT, ONE OR BOTH OF THE RIGHT OR LEFT FRONT DIPPED HEADLIGHTS WILL FLICKER, AND THEN TEMPORARILY FAIL. THE CAR HAS CONTINUED INTERMITTENT PROBLEMS WITH THIS ISSUE, AND IN SEARCHING THE WEB, I FOUND A SITE THAT INDICATES AT LEAST 124 OTHER SIMILAR ISSUES: HTTP://WWW.AUDIZINE.COM/FORUM/SHOWTHREAD.PHP?332613-CLASS-ACTION-LAWSUIT-DIPPED-HEADLIGHT-FLICKER-PROBLEM/PAGE2. *TR

NHTSA ODI #10308079

49,000 miles · Feb 6, 2010
Exterior Lighting

THE XENON LIGHTS FLICKRER AND THEN STOP, VERY DANGEROUS AT NIGHT HAPPENED TO ME ON FEW OCCASIONS, DEALER NOT SURE WHAT IS THE CAUSE *CN

NHTSA ODI #10307115

25,000 miles · Dec 21, 2009
Exterior Lighting

INTERMITTENT HEADLIGHT MALFUNCTION. OVER THE COURSE OF A YEAR AND A HALF OF OWNERSHIP, THE RIGHT HEADLIGHT HAS MALFUNCTIONED (TURNED OFF), WITH NO CONSISTENT CAUSE APPARENT. THE SPECIFIC ERROR MESSAGE THAT APPEARS IN THE DRIVER INFORMATION SCREEN IS "RIGHT HEADLIGHT DIPPED". THIS CONDITION IS BOTH UNSAFE, AND ILLEGAL - AS MAN…

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INTERMITTENT HEADLIGHT MALFUNCTION. OVER THE COURSE OF A YEAR AND A HALF OF OWNERSHIP, THE RIGHT HEADLIGHT HAS MALFUNCTIONED (TURNED OFF), WITH NO CONSISTENT CAUSE APPARENT. THE SPECIFIC ERROR MESSAGE THAT APPEARS IN THE DRIVER INFORMATION SCREEN IS "RIGHT HEADLIGHT DIPPED". THIS CONDITION IS BOTH UNSAFE, AND ILLEGAL - AS MANY STATES WILL ISSUE A TRAFFIC VIOLATION FOR DRIVING WITH A NON-FUNCTIONING HEADLIGHT. IT HAS HAPPENED ABOUT 7-8 TIMES, THE HEADLIGHT FLICKERS, THEN GOES OUT, BUT WILL COME BACK ON WHEN THE CAR IS RESTARTED, THEN BE FINE FOR WEEKS OR MONTHS AT A TIME. THE DEALERSHIP HAS BEEN NOTIFIED OF THE PROBLEM ON AT LEAST 3 VISITS, AND HAS CLAIMED THAT EVERYTHING IS FINE AND THEY CAN NOT REPRODUCE. THEY HAVE SUGGESTED/GUESSED THAT IT IS THE XENON LIGHT BULB ITSELF, HOWEVER IT HAS CHECKED OUT FINE EACH TIME, AND AS MENTIONED, HAS FUNCTIONED FLAWLESSLY AFTER EACH OCCURRENCE WITH MERELY A RESTART OF THE VEHICLE. NO PARTS HAVE BEEN REPAIRED OR REPLACED, HOWEVER THEY HAVE CLAIMED TO PERFORM A VISUAL INSPECTION OF THE ELECTRICAL CONNECTIONS ON AT LEAST ONE VISIT. ANECDOTAL EVIDENCE (CONVERSATIONAL, AND VIA INTERNET OWNERS' FORUMS) SUGGESTS THAT THE PROBLEM IS WIDESPREAD AMONG A SUBSTANTIAL PORTION OF AUDI'S MODEL RANGE AND YEARS. *TR

NHTSA ODI #10296556

4,500 miles · Apr 3, 2007
Power TrainSteering

I LEASED ON BRAND NEW 2006 AUDI S4 ON JULY 29,2006. IN DECEMBER 14,2006 THIS CAR DEVELOPED A PROBLEM WITH THE POWER STEERING OF CAR. THE CAR WAS TAKEN TO THE DEALERSHIP FOR REPAIRS. THIS TOOK FOUR DAYS. TWO WEEKS LATER THIS CAR WAS TOWED TO THE DEALERSHIP FOR POWER STEERING PROBLEM. THIS TIME THEY REPLACED THE POWER STEERING RAC…

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I LEASED ON BRAND NEW 2006 AUDI S4 ON JULY 29,2006. IN DECEMBER 14,2006 THIS CAR DEVELOPED A PROBLEM WITH THE POWER STEERING OF CAR. THE CAR WAS TAKEN TO THE DEALERSHIP FOR REPAIRS. THIS TOOK FOUR DAYS. TWO WEEKS LATER THIS CAR WAS TOWED TO THE DEALERSHIP FOR POWER STEERING PROBLEM. THIS TIME THEY REPLACED THE POWER STEERING RACK WHICH TOTAL A TWENTY-THREE DAY REPAIR. ON MARCH 24,2007 THE CAR WAS ONCE AGAIN TOWED TO DEALERSHIP AND I WAS TOLD THE CLUTCH OF VEHICLE WAS NO GOOD. ON APRIL 3, 2007 I CALLED THE DEALERSHIP AND NOW WAS TOLD ONCE AGAIN THEY ARE REPLACING THE POWER STEERING PUMPED. THIS IS THE THIRD TIME IN NINE MONTHS THEY ARE ATTEMPTING TO MAKE THE SAME REPAIR. IM ALSO FILING A COMPLAINT WITH NEW YORK STATE ATTORNEY GENERAL FOR THE LEMON LAW. *JB

NHTSA ODI #10186939

Official recalls

2

18V427000 · Air Bags:frontal:passenger Side:inflator Module

Jun 22, 2018

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.

Consequence & remedy

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.

Remedy: Audi has notified owners, and dealers will replace the passenger frontal air bag with an alternate remedy part, free of charge. The recall began June 29, 2018. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 69R7. Note: This recall supersedes recalls 16V382, 17V032 and 18V004 and includes vehicles that may have had their air bag previously replaced under one of those campaigns.

17V032000 · Air Bags:frontal:passenger Side:inflator Module

Jan 11, 2017

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.

Consequence & remedy

Consequence: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.

Remedy: Audi will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. The recall began March 30, 2018. Owners may contact Audi customer service at 1-800-253-2834. Note: This recall has been superseded by recall number 18V427.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.