THE IGNITION COILS FAILED, WHICH CAUSED THE VEHICLE TO STALL.*JB
2002 Audi A4
Owner reports · Recalls · Investigations
More warning signs than most A4 years
Owner complaints for the 2002 Audi A4 are substantially higher than the model-year median of 76.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all A4 years →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
114 reports with mileage · 67 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.
- Electrical System. Review the 76 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 28 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Exterior Lighting. Review the 17 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
181 reportsIGNITION COIL FAILURE. RECEIVED LETTER FROM AUDI ON MARCH 3, 2003 REGARGING RECOGNIZED IGNITION COIL FAILURES. AUDI INDICATED SIGNIFICANT FAILURES WITH IGNITION COILS AND PROMISED THAT IN THE EVENT OF IGNITION COIL FAILURE ALL REPAIRS WOULD BE FREE. ON MARCH 11, 2002, I WENT TO DEALER FOR A REGULARLY SCHEDULED MAINTENANCE AT …
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IGNITION COIL FAILURE. RECEIVED LETTER FROM AUDI ON MARCH 3, 2003 REGARGING RECOGNIZED IGNITION COIL FAILURES. AUDI INDICATED SIGNIFICANT FAILURES WITH IGNITION COILS AND PROMISED THAT IN THE EVENT OF IGNITION COIL FAILURE ALL REPAIRS WOULD BE FREE. ON MARCH 11, 2002, I WENT TO DEALER FOR A REGULARLY SCHEDULED MAINTENANCE AT 11,000 MILES. I ASKED THE SERVICE REPRESENTATIVE TO REPLACE THE DEFECTIVE COILS EVEN THOUGH I HAD YET TO EXPERIENCE ANY TROUBLE. I WAS INFORMED THAT AUDI WOULD NOT REPLACE THE COILS UNTIL ACTUAL VEHICLE FAILURE. APPROXIMATELY TWO WEEKS LATER, THE COILS FAILED AND MY CAR DIED ON THE ROAD IN ZERO DEGREE WEATHER. AFTER A 90 MINUTE WAIT, AUDI ROADSIDE SERVICE ARRIVED AND TOOK MY CAR BY FLAT-BED TO DEALER. I HAVE BEEN INFORMED BY THE SERVICE REPRESENTATIVE THAT ONLY THE DEFECTIVE COILS WILL BE REPLACED. MY VEHICLE HAS SIX COILS. THE SERVICE REPRESENTATIVE INDICATED THAT ALL COILS WILL BE REPLACED ONLY WHEN THE CAR IS IN FOR A SECOND COIL FAILURE. THE SERVICE REPRESENTATIVE ACKNOWLEDGED THAT A SECOND COIL FAILURE IS GUARANTEED. THE OTHER COMPLAINTS ON THIS WEBSITE APPEAR TO BEAR THIS OUT. THE NHSTB SHOULD DEMAND AN IMMEDIATE RECALL OF THESE DEFECTIVE IGNITION COILS. AUDI HAS BEEN AWARE OF THIS VEHICLE SAFETY ISSUE FOR MONTHS AND APPEARS TO BE QUITE CONTENT TO LET ITS CUSTOMERS CONTINUE TO BEAR THE RISK OF A CATASTROPHIC ACCIDENT. I WOULD LIKE TO KNOW HOW MANY COMPLAINTS OF THIS NATURE MUST BE WRITTEN BEFORE THE NHTSA TAKES ACTION? *JB
NAR 02/28/2003 MR THE VEHICLE SUDDENLY BEGINS TO SHUDDER AND RAPIDLY LOSE POWER, MAKING IT UNABLE TO MERGE SAFELY OR DRIVE AT INTERSTATE HIGHWAY SPEEDS. *CB
THE WINDSHIELD WIPERS, IGNITION COIL, RIGHT FRONT SPEAKER, RADIO, LOCK CONTROL AND KEYLESS ENTRY FAILED. *AK *JB
THE IGNITION COIL, WINDSHIELD WIPERS, RIGHT FRONT SPEAKER, RADIO, RIGHT FRONT DOOR CONTROL WINDOW AND LOCK FAILED.*AK *JB
AUDI SERVICE PERSONNEL NOTIFIED ME OF A CAM SEAL LEAK DURING THE 10,000 MILE SERVICING. THEY ATTEMPTED TO FIX THE PROBLEM ONCE, BUT IT STILL LEAKED. I BROUGHT THE VEHICLE BACK AND THEY INFORMED ME THAT A SPECIAL TOOL FROM GERMANY IS NEEDED TO FIX THE PART. SO FAR THE CAR HAS BEEN IN THE SHOP OVER TWO MONTHS - AND STILL WAITIN…
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AUDI SERVICE PERSONNEL NOTIFIED ME OF A CAM SEAL LEAK DURING THE 10,000 MILE SERVICING. THEY ATTEMPTED TO FIX THE PROBLEM ONCE, BUT IT STILL LEAKED. I BROUGHT THE VEHICLE BACK AND THEY INFORMED ME THAT A SPECIAL TOOL FROM GERMANY IS NEEDED TO FIX THE PART. SO FAR THE CAR HAS BEEN IN THE SHOP OVER TWO MONTHS - AND STILL WAITING FOR THE TOOL. AMAZING, HUH?
GAS GAUGE FAILED. ENGINE DIED ON FREEWAY DUE TO FUEL TANK BEING EMPTY; AT THE TIME, GAUGE SHOWED TANK WAS 1/2 FULL. DEALER REPLACED INSTRUMENT CLUSTER, BUT PROBLEM REMAINS.
MY AUDI A4 SPUTTERED AND LOST POWER. THE ONBOARD DIAGNOSTICS LIGHT CAME ON AND FLASHED. AUDI ROADSIDE ASSISTANCE TOWED MY CAR TO BROOKLINE AUDI, WHERE IT WAS DETERMINED THAT THE IGNITION COILS WERE TO BLAME. AFTER READING ARTICLES INDICATING THAT AUDI WILL REPLACE ALL COILS, WHETHER THEY ARE BROKEN OR NOT, I ASKED THE DEALERSHIP…
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MY AUDI A4 SPUTTERED AND LOST POWER. THE ONBOARD DIAGNOSTICS LIGHT CAME ON AND FLASHED. AUDI ROADSIDE ASSISTANCE TOWED MY CAR TO BROOKLINE AUDI, WHERE IT WAS DETERMINED THAT THE IGNITION COILS WERE TO BLAME. AFTER READING ARTICLES INDICATING THAT AUDI WILL REPLACE ALL COILS, WHETHER THEY ARE BROKEN OR NOT, I ASKED THE DEALERSHIP TO REPLACE ALL COILS. THEY INSISTED THAT THEY WILL ONLY REPLACE THOSE THAT ARE DEFECTIVE, NOT ALL AS REPORTED IN SEVERAL ARTICLES (E.G., MOTORTREND). I TOLD THE DEALERSHIP THAT I WILL BE DRIVING FROM MA TO CA THIS WEEKEND. I TOLD THEM THAT I DO NOT WANT TO BE HALF WAY ACCROSS THE COUNTRY AND HAVE ANOTHER COIL BREAK. I WANT ALL COILS REPLACED, BUT THE DEALERSHIP REFUSES.
FIRST IGNITION COIL PACK FAILED ON 3.0 A4 AVANT, I WAS DISTRESSED TO DISCOVER THAT THIS IS A KNOWN FAULT THAT HAS HAPPENED TO A LARGE NUMBER OF OWNERS WITH NO PLANS TO REPLACE MORE THAN THE UNITS THAT FAIL WHEN THE PROBLEM OCCURS. THIS IS UNACCEPTABLE FOR A $35,000 CAR THAT HAS LESS THAN 3000 MILES ON THE CLOCK, IT DOES NOT MAKE…
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FIRST IGNITION COIL PACK FAILED ON 3.0 A4 AVANT, I WAS DISTRESSED TO DISCOVER THAT THIS IS A KNOWN FAULT THAT HAS HAPPENED TO A LARGE NUMBER OF OWNERS WITH NO PLANS TO REPLACE MORE THAN THE UNITS THAT FAIL WHEN THE PROBLEM OCCURS. THIS IS UNACCEPTABLE FOR A $35,000 CAR THAT HAS LESS THAN 3000 MILES ON THE CLOCK, IT DOES NOT MAKE YOU FEEL VERY COMFORTABLE TO KNOW THAT IT COULD HAPPEN AT LEAST ANOTHER 5 TIMES. THE DEALER WAS VERY EFFICIENT AND COURTEOUS, BUT THAT DOES NOT CUT IT WITH SUCH A FUNDAMENTAL PROBLEM THAT COULD STRIKE AT ANY TIME. WITH SO MANY CUSTOMER COMPLAINTS, AUDI SHOULD BE FORCED TO ISSUE A RECALL NOTICE.
VEHICLE SHUTS OFF. DEALER NOTIFIED. PH
Official recalls
121V470000 · Air Bags:frontal:driver Side:inflator Module
Jun 23, 2021
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2000-2001 Audi TT Coupe, TT Roadster, 2000-2002 A4, and S4 vehicles equipped with Non-Azide Driver Air Bag Inflators (NADI) that do not contain phase stabilized ammonium nitrate (PSAN) propellant. Due to a manufacturing issue, the NADI inflators may absorb moisture, possibly causing the air bag to deploy improperly in the event of a crash.
Consequence & remedy
Consequence: In the event of a crash necessitating air bag deployment, the air bag may not properly protect the occupant, increasing the risk of serious injury or death.
Remedy: Dealers will replace the driver frontal airbag inflator with an alternative inflator, free of charge. Owner notification letters were mailed November 2, 2021. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 69CJ.
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
0No exact-year investigations in this snapshot.
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