2005 Audi S4

I OWN A 2005.5 AUDI S4 B7. THE HEADLIGHTS GO OUT. WHILE DRIVING THE CAR, ONE OF THE HEADLIGHTS BEGINS TO FLICKER ON AND OFF. THEN ALL OF A SUDDEN, IT JUST SHUTS OFF COMPLETELY. I HAVE TO TURN THE LIGHTS COMPLETELY OFF AND THEN TURN THEM BACK ON TO MAKE THE LIGHT THAT JUST SHUT OFF GO BACK ON AGAIN. SOMETIMES I HAVE TO DO THIS THREE OR FOUR TIMES BEFORE THE LIGHT CONTINUES TO STAY ON. THERE HAVE BEEN A COUPLE TIMES THAT BOTH LIGHTS FAILED. MAJOR DRIVING PROBLEM AT NIGHT. ONCE I CYCLE THROUGH THIS THE LIGHT DOES STAY ON FOR THE REST OF MY DRIVING TIME. I HAVE LOOKED ON LINE AND IT SEEMS TO BE A PROBLEM WITH MANY OTHER AUDI OWNERS. AUDI SAID THEY ARE NOT RESPONSIBLE FOR THIS. WELL, IT SEEMS IF IT IS HAPPENING TO MANY OTHER AUDI DRIVERS, AUDI SHOULD BE RECALLING THESE LIGHTS. *TR

HEADLIGHTS FLICKER AND SHUT DOWN. THIS OCCURS MOSTLY UNDER DECELERATION BUT CAN FREQUENTLY OCCUR DURING ACCELERATION AND TURNING. HEADLIGHTS RUN NORMALLY UNDER STEADY STATE SPEED OR AT REST. DEALERSHIP CLAIMS NO ISSUE. INDEPENDENT AUDI SPECIALIST HAS CONFIRMED THE PROBLEM AND SWAPPED BULBS (LEFT-RIGHT) WITHOUT EFFECT. THIS HAS BEEN OCCURRING FOR OVER FOUR YEARS AND GETTING PROGRESSIVELY WORSE, TO THE POINT THAT EACH TIME THE CAR IS DRIVEN THE LIGHTS NEED TO BE RE-IGNITED A MINIMUM OF 5 TIMES DURING A 30 MINUTE DRIVE. SAFETY ISSUE AS LIGHTS TURN OFF AT NEARLY ALL BRAKING SITUATIONS AND DRIVER MUST DIVERT ATTENTION TO CONTROLS TO RE-ILLUMINATE. *TR

AUDI: HEADLIGHT VIBRATION, 2005.5 S4. UNDER CERTAIN OPERATING CONDITIONS, SUCH AS AT IDLE, VIBRATIONS OR RESONANCES IN THE FRONT OF THE VEHICLE CAN CAUSE THE HEADLIGHTS TO VIBRATE AND TURN OFF. HAPPENS MOST FREQUENTLY WHEN CAR IS STARTING UP OR COLD. CAN SPONTANEOUSLY FLICKER OR TURN OFF WHILE DRIVING AT NIGHT. OCCURS ABOUT 1 OUT OF 3 TIMES WHILE DRIVING AT NIGHT. ASKED DEALER TO LOOK AT IT, SAID THERE WAS NO ISSUE. *TR

2005 AUDI S4 - EXPERIENCING "DIPPED HEADLIGHT" ERROR WHERE THE HEADLIGHTS FLICKER THEN SHUT OFF WHILE DRIVING. THE HEADLIGHT CAN BE TURNED BACK ON ONLY IF THE HEADLIGHT SWITCH IS TURNED OFF THEN TURNED BACK ON. THIS CORRECTS THE PROBLEM TEMPORARILY, WITH THE HEADLIGHT FLICKERING AGAIN THEN SHUTTING OFF. THE PROBLEM IS PERSISTENT AND IS A SAFETY ISSUE. TOOK MY CAR TO AUDI DEALER BUT THEY COULD NOT REPLICATE THE PROBLEM AND THEREFORE WOULD NOT FIX IT. I'VE READ THOUSANDS OF OTHER COMPLAINTS OF HIS ISSUE ONLINE.

I HAVE A 2005 AUDI S4 AND MY HEADLIGHTS FLICKER AND GO OUT WHILE DRIVING ALMOST EVERY TIME I HAVE THEM ON. SOMETIMES IT IS ONE AND SOMETIMES BOTH AND I GET A MESSAGE ON MY DASH BOARD THAT THE AFFECTED HEADLIGHT IS DIPPED. IF I TURN THE LIGHTS OFF THEN BACK ON THE AFFECTED HEADLIGHT WILL USUALLY COME BACK ON. SOMETIMES THAT DOESN'T WORK AND THE CAR HAS TO BE TURNED OFF AND RESTARTED. HEADLIGHTS TURNING OFF WHILE DRIVING AT NIGHT IS A VERY DANGEROUS SITUATION. WHEN I BROUGHT IT TO THE ATTENTION OF THE AUDI DEALERSHIP THEY SAY THEY CAN'T DUPLICATE THE PROBLEM. *TR

CAR STARTED MISFIRING AND WITHIN LESS THAN 5 MILES IN THE HIGHWAY THEN STARTED TO BUILD UP SMOKE INSIDE THE CABIN, CAR THEN STOPPED AND TOWED TO A MECHANICS WHO CONFIRM THE DIAGNOSIS OF MISFIRING OF 3 CYLINDERS AND FOUND OVERHEATING OF THE PASSENGER SIDE CATALYTIC CONVERTER THAT LEAD TO A MELTING A CONNECTOR OF THE TRANSMISSION. *TR

FOLLOWING A COLD START, THE MAIN BEAM HEADLIGHT WILL FLICKER FOR APPROXIMATELY 5-10 SECONDS, THEN FULLY DISCHARGE. THIS WILL REPEAT FOR SEVERAL MINUTES, TYPICALLY RESULTING IN THE 'RIGHT HEADLIGHT DIPPED' WARNING ILLUMINATING ON THE DASH DISPLAY AND THE HEADLIGHT FAILING TO LIGHT. I THINK THIS POSES A SAFETY RISK AS THE PROBLEM IS CONSISTENT AND RISKS THE DRIVER'S NIGHT VISION. WHEN THE WEATHER IS COLD (<40 DEGREES F), THE PROBLEM IS MUCH MORE CONSISTENT AND PERSISTS EVEN AFTER THE ENGINE HAS WARMED. IN WARM WEATHER, THE PROBLEM SOMETIMES STOPS AFTER ~10 TO 15 MINUTES OF DRIVING, WHEN THE ENGINE HAS WARMED UP. *TR

FRONT HEADLIGHTS (BOTH SIDES) FLICKER(BLINK) BUT NOT ALL THE TIME. WHEN THEY FLICKER I TURN THEM OFF AND THEN TURN ON AGAIN, THEN THEY ARE FINE. BUT I AM WORRIED THAT IT MAY GO BAD DURING DRIVING CAUSING SAFETY ISSUES. ITS NOT THE BULB ISSUES AS ON-BOARD DIAGNOSTICS WOULDN'T DETECT THE PROBLEM. IT HAS HAPPENED SEVERAL TIMES OVER LAST COUPLE OF WEEKS. I TRIED FINDING SOLUTION ONLINE AND FOUND THIS FORUM HTTP://FORUMS.AUDIWORLD.COM/SHOWTHREAD.PHP?P=23809262. THIS TELLS ME THIS PROBLEM IS PART OF NOTORIOUS DESIGN BY AUDI OF AMERICA. MY CAR IS OUT OF WARRANTY AND AUDI WOULDN'T TAKE CARE OF IT AS THEY HAVE PROVIDED NO ASSISTANCE TO SORT OUT OTHER MECHANICAL ISSUES WITH MY CAR WHICH HAS ONLY 50000 MILES. THOSE ISSUES INCLUDE FAILING OF FUEL PUMPS, LEAKING OF TRANSMISSION FLUID AND MELTING OF GASKET COVER CAPS (MAIN) LEADING TO INCONVENIENCE AND FINANCIAL STRESS FOR US AND ON A CAR WHICH IS NOT EVEN 12 MONTHS OUT OF WARRANTY. I REQUEST YOU TO DO YOUR RESEARCH AND HOPE THEY DO A RECALL FOR THESE FAULTY HEADLIGHTS. *TR