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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.

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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.

13 crash reports6 fire reports4 injury reports

Electrical System complaints

76 reports
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14,000 miles · Sep 2, 2003
Electrical SystemEngine And Engine Cooling

THE IGNITION COIL MADE THE VEHICLE RIDE ROUGH. WHILE DRIVING, THE VEHICLE LOST POWER AND CUT OFF. THE DEALER STATED THEY WOULD ONLY REPLACE 1 OUT OF 6 COILS. *TS THE SERVICE TECHNICIAN HAD DRIVEN THE VEHICLE FIVE MILES AND THE A SECOND COIL FAILED. AUDI REPLACED ALL SIX COILS THEN THE REMAINING FIVE WERE "J" COILS. THE EN…

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THE IGNITION COIL MADE THE VEHICLE RIDE ROUGH. WHILE DRIVING, THE VEHICLE LOST POWER AND CUT OFF. THE DEALER STATED THEY WOULD ONLY REPLACE 1 OUT OF 6 COILS. *TS THE SERVICE TECHNICIAN HAD DRIVEN THE VEHICLE FIVE MILES AND THE A SECOND COIL FAILED. AUDI REPLACED ALL SIX COILS THEN THE REMAINING FIVE WERE "J" COILS. THE ENGINE WARNING LIGHT HAD COME ON. THE VEHICLE HAD BEEN SERVICED REPEATEDLY BY FATHER'S & SONS, BUT THEY HAD NOT COMPLETED THE REPAIR. ALL OF THE OXYGEN SENSORS AND THE CATALYTIC CONVERTER HAD BEEN REPLACED. (SOME TWICE) THE OTHER EMISSION PARTS WERE REPLACED. THE SERVICE DEALER DID NOT GIVE THE CONSUMER THE PAPER WORK BECAUSE AUDI DID NOT PAY THE FULL COST FOR REPAIRS. THE VEHICLE WAS STILL UNDER WARRANTY. *SCC *JB

NHTSA ODI #10004773

Mileage unknown · Apr 8, 2003
Electrical System

EMAIL FM ANNE SIGNORILE (NY) RE DEFECTIVE #4 COIL WHICH CAUSED THE VEHICLE TO STALL. THE CONSUMER REQUESTED THAT ALL THE COILS BE REPLACED BUT THE DEALER REFUSED. *TS *NLM

NHTSA ODI #10011850

Mileage unknown · Apr 1, 2003
Electrical System

FAULTY IGNITION COILS CAUSED VEHICLE TO SHUT DOWN/STALL. *AK *JB

NHTSA ODI #10011278

Mileage unknown · Mar 28, 2003
Electrical System

THE IGNITION COIL WENT BAD ON THE VEHICLE. *JB

NHTSA ODI #10014651

Mileage unknown · Mar 28, 2003
Electrical System

THE IGNITION COIL FAILED ON THE VEHICLE. *JB

NHTSA ODI #10014645

21,000 miles · Mar 28, 2003
Electrical System

IGNITION COIL FAILURE ON MY 2002 AUDI A4 (21K MILES). PER MY DEALER SERVICE ADVISOR, CAR MUST BE TOWED TO A DEALER. LOST SEVERAL HOURS AT WORK AND WAS GIVEN SUBSTANDARD RENTAL CAR, REPAIR WAS NOT COMPLETED ON THE DAY ESTIMATED. PER AUDI OF AMERICA POLICY, ONLY ONE COIL IS REPLACED, WE WILL WAIT FOR ANOTHER COIL TO PROVE FAULTY (…

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IGNITION COIL FAILURE ON MY 2002 AUDI A4 (21K MILES). PER MY DEALER SERVICE ADVISOR, CAR MUST BE TOWED TO A DEALER. LOST SEVERAL HOURS AT WORK AND WAS GIVEN SUBSTANDARD RENTAL CAR, REPAIR WAS NOT COMPLETED ON THE DAY ESTIMATED. PER AUDI OF AMERICA POLICY, ONLY ONE COIL IS REPLACED, WE WILL WAIT FOR ANOTHER COIL TO PROVE FAULTY (WHICH ALMOST EVERYONE ASSUMES WILL HAPPEN, EVEN DEALER), I WILL HAVE TO WAIT AT ROAD SIDE AGAIN, AT WHICH POINT AUDI WILL REPLACE ALL REMAINING COILS. (HOPEFULLY--AUDI'S WEB SITE ALREADY HAS SAID ALL WOULD BE REPLACED WHEN ONE FAILS, BEGINNING IN MARCH, BUT APPARENTLY THIS IS NOT THE POLICY AT MY DEALER.) THIS HAS BEEN HAPPENING TO THOUSANDS OF AUDI CUSTOMERS. *JB

NHTSA ODI #10013606

26,400 miles · Mar 16, 2003
Electrical SystemEngine And Engine Cooling

1/10/2003--TOOK THE CAR IN TO HAVE IT CHECKED BECAUSE OF A ROUGH IDLE AND TROUBLE STARTING. THE DEALER FOUND NO INITIAL PROBLEMS. 2/5/2003--RECEIVED NOTICE IN THE MAIL FROM AUDI CONCERNING THE POSSIBILITY OF BAD COIL PACKS ON 2002 A4'S. 2/7/2003--THE CAR STALLED ON US AT NIGHT, IN THE RAIN, IN THE MIDDLE OF A BUSY INTERSECTIO…

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1/10/2003--TOOK THE CAR IN TO HAVE IT CHECKED BECAUSE OF A ROUGH IDLE AND TROUBLE STARTING. THE DEALER FOUND NO INITIAL PROBLEMS. 2/5/2003--RECEIVED NOTICE IN THE MAIL FROM AUDI CONCERNING THE POSSIBILITY OF BAD COIL PACKS ON 2002 A4'S. 2/7/2003--THE CAR STALLED ON US AT NIGHT, IN THE RAIN, IN THE MIDDLE OF A BUSY INTERSECTION. IT TOOK ME AT LEAST A MINUTE TO GET IT RESTARTED--THAT MAY NOT SOUND LIKE MUCH, BUT YOU SHOULD TRY TURNING OFF YOUR CAR IN THE MIDDLE OF AN INTERSECTION AND WAIT 60 SECONDS BEFORE RESTARTING & TAKING OFF. SEE HOW MAY PEOPLE START HONKING AND/OR ALMOST HIT YOU BEFORE YOU MOVE.... 2/8-2/11/03--THE DEALER CHECKS THE CAR OVER. THEY SAY THE COIL PACKS ARE FINE, BUT THE MASS AIR FLOW SENSOR WAS BAD, SO THEY REPLACED IT. I DON'T BELIEVE THEY HAVE FIXED THE PROBLEM, SINCE THE CAR STILL IDLES ROUGH, AND STILL HAS TROUBLE STARTING. LUCKILY, IT HASN'T DIED ON US AGAIN (YET). *NLM

NHTSA ODI #10010547

1,200 miles · Mar 16, 2003
Electrical System

HOMELINK SYSTEM STOPS WORKING. DEALER REPROGRAMS THE SYSTEM (WHICH I HAD ALREADY DONE 5X), AND IT STILL DOESN'T WORK. THE VISOR WITH CONTROL BUTTONS IS ORDERED & REPLACED. THE HOMELINK STARTS WORKING AGAIN. 7/2002--HOMELINK STARTS ACTING UP AGAIN--IT IS WORKING INTERMITTENTLY. 8/2002--HOMELINK TRANSCEIVER IS REPLACED AND IT…

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HOMELINK SYSTEM STOPS WORKING. DEALER REPROGRAMS THE SYSTEM (WHICH I HAD ALREADY DONE 5X), AND IT STILL DOESN'T WORK. THE VISOR WITH CONTROL BUTTONS IS ORDERED & REPLACED. THE HOMELINK STARTS WORKING AGAIN. 7/2002--HOMELINK STARTS ACTING UP AGAIN--IT IS WORKING INTERMITTENTLY. 8/2002--HOMELINK TRANSCEIVER IS REPLACED AND IT STARTS WORKING AGAIN. LATER THAT MONTH, IT BEGINS WORKING INTERMITTENTLY AGAIN. 9/2002--DEALER FINALLY INVESTIGATES FURTHER, AND FINDS CORROSION IN THE WIRING HARNESS/CONNECTORS. THAT SOUNDS VERY STRANGE TO ME. WHAT WAS THE CAR EXPOSED TO DURING PRODUCTION TO CAUSE THAT? WHAT ELSE IS GOING TO FAIL/GIVE US PROBLEMS AS A RESULT? *NLM

NHTSA ODI #10010540

11,000 miles · Mar 3, 2003
Electrical System

THE IGNITION COILS FAILED, WHICH CAUSED THE VEHICLE TO STALL.*JB

NHTSA ODI #10009648

11,900 miles · Mar 3, 2003
Electrical System

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 …

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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

NHTSA ODI #10008351

Official recalls

1

21V470000 · 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

0

No exact-year investigations in this snapshot.