NHTSA Complaint #10433961 — 2006 AUDI A4

"INTERMITTENT HEADLIGHT MALFUNCTION. OVER THE COURSE OF A YEAR OF OWNERSHIP, THE HEADLIGHTS HAVE MALFUNCTIONED (TURNED OFF), WITH NO CONSISTENT CAUSE APPARENT. THE SPECIFIC ERROR MESSAGE THAT APPEARS IN THE DRIVER INFORMATION SCREEN IS "LEFT (OR 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 APPROX. 40 TIMES, THE HEADLIGHT FLICKERS, THEN GOES OUT, BUT WILL COME BACK ON WHEN THE CAR IS RESTARTED OR CLEAR IF THE HEADLIGHT IS TURNED OFF THEN BACK ON. IT WILL THEN BE FINE FOR DAYS OR WEEKS AT A TIME. IT HAS BEEN CONSISTENTLY GETTING MORE FREQUENT AND WORSE. AT TIMES, BOTH HEADLIGHTS WILL TURN OFF BY THEMSELVES WHILE DRIVING CAUSING A VERY DANGEROUS SITUATION AND QUICK ACTION TO AVOID INJURY OR DEATH. THEN RANDOMLY TURN BACK ON. MULTIPLE DEALERSHIPS HAVE 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, OR BALLAST. ANNECDOTAL 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