Crank case ventilation hose breaks and engine runs poorly part#06C103235B
2003 Audi A4
Owner reports · Recalls · Investigations
More warning signs than most A4 years
Owner complaints for the 2003 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
177 reports with mileage · 33 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.
- Power Train. Review the 43 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel System, Gasoline. Review the 41 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 32 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
7 reportsThe coolant light came on after I replaced coil packs and I stopped to look wasn't leaking anywhere. Drove to work and it caught on fire due to overheating I guess not really sure. I was driving a car on fire down a highway and didn't even know it. I stopped to take a left turn into work and smoke stared billowing out and around…
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The coolant light came on after I replaced coil packs and I stopped to look wasn't leaking anywhere. Drove to work and it caught on fire due to overheating I guess not really sure. I was driving a car on fire down a highway and didn't even know it. I stopped to take a left turn into work and smoke stared billowing out and around the entire car. Other drivers couldn't see me or nothing I could have been in an accident. The fire department checked the car out sort of and it's in a mechanics shop now. Trying to figure it out. Oil light was on and that's it. AN then the coolant light would kick on and off. Nothing else after I changed the coil packs. And it was well after I did that.
TAMARA RECALL MY CAR WOULDNT START KEEP GETTING STEER WHEEL HARD TO DRIVE SHIFTS TO GEAR GET STUCK
LOSS OF POWER OR LATE RESPONSE TO THROTTLE. TCS AND ABS LIGHT LIMININTED AFTER REPLACING SENSOR. VIBERTION IN PASSENGER SIDE AROUND 50 MPH OR BRAKING. REPLACED IGNITION COIL TWICE.
AFTER RETURNING HOME FROM A DRIVE THROUGH FAST FOOD PLACE LAST NIGHT MY DAUGHTER WAS PARKING IN OUR DRIVEWAY, SHE WAS IN REVERSE. THE CAR (A 2003 AUDI A4 CV CONVERTIBLE) BOUNCED AND MADE A SOUND THEN SHE STOPPED. I SAID TAKE THE KEYS OUT OF THE IGNITION TO HER BLACK SMOKE STARTED TO RISE OUT OF THE TOP OF THE HOOD CRACK IN F…
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AFTER RETURNING HOME FROM A DRIVE THROUGH FAST FOOD PLACE LAST NIGHT MY DAUGHTER WAS PARKING IN OUR DRIVEWAY, SHE WAS IN REVERSE. THE CAR (A 2003 AUDI A4 CV CONVERTIBLE) BOUNCED AND MADE A SOUND THEN SHE STOPPED. I SAID TAKE THE KEYS OUT OF THE IGNITION TO HER BLACK SMOKE STARTED TO RISE OUT OF THE TOP OF THE HOOD CRACK IN FRONT OF THE FRONT WINDSHIELD. I TOLD HER TO GET THE DOG IN OUR BACK SEAT AND HERSELF OUT I ASSUMED IT WAS ON FIRE BECAUSE THE DARK SMOKE. I GRABBED MY PURSE PIPED THE HOOD AND MY DAUGHTER CALLED 911 AS THE NEIGHBORS RAN INSIDE THERE HOME FOR A FIRE EXTINGUISHER. TWO MEN FROM ACROSS THE STREET ATTEMPTED TO PUT IT OUT AS I SPOKE TO THE 911 OPERATOR. THE FIRE DEPARTMENT ARRIVED AND GOT THE FIRE OUT. MY CAR IS NOW JUNK. MY DAUGHTER WAS EMOTIONALLY STRAINED, HYSTERICAL THROUGHOUT THE INCIDENT. IT WAS TRAUMATIC FOR US BOTH. THE FIREFIGHTERS SAID IT WAS POSSIBLY CAUSED BY ELECTRICAL MALFUNCTIONS.
GASKET LEAKAGE, IN TWO SEPARATE AREAS IN UPPER GASKET, PER MECHANIC. CAR IS NOW IN REPAIRS. BASED UPON READING THE ONLINE RECALLS ON THE OFFICIAL NHTSA PAGE, THIS IS PART OF THE RECALL FOR AUDI A4 2000-2006. UNITED STATES
I HAD A NEW TRANSMISSION PUT IN THE AUDI AND AFTER A YEAR THE TRANSMISSION REVERSE MODE FAILED. I TOOK IT TO THE SHOP WHICH REPAIRED THE CAR AND FOUND THAT THERE HAD BEEN A RECALL ON THE PART WHICH WAS NEEDED FOR THE CAR. WHEN I TOOK IT TO THE AUDI DEALERSHIP THEY REFUSED TO HONOR THE RECALL AND I HAD TO PAY FOR THE NEW PART A…
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I HAD A NEW TRANSMISSION PUT IN THE AUDI AND AFTER A YEAR THE TRANSMISSION REVERSE MODE FAILED. I TOOK IT TO THE SHOP WHICH REPAIRED THE CAR AND FOUND THAT THERE HAD BEEN A RECALL ON THE PART WHICH WAS NEEDED FOR THE CAR. WHEN I TOOK IT TO THE AUDI DEALERSHIP THEY REFUSED TO HONOR THE RECALL AND I HAD TO PAY FOR THE NEW PART AN ADDITIONAL $2700. I WAS TOLD THAT I WAS NOT THE OWNER OF THE CAR AND THEY HAD NO INFORMATION ON FILE ABOUT ME HOWEVER I HAD REPEATEDLY BEEN IN PERSONALLY TO ASK ABOUT THE CAR AND ANY RECALLS AFTER REPLACING THE TRANSMISSION. ALSO THEY HAD MY EMAIL ADDRESS. I WAS THEN TOLD I WAS SIX MONTHS TOO LATE AND I HAD TO PAY FOR THE REPAIR. I TRIED TO CALL AUDI CUSTOMER SERVICE AND THE HEADQUARTERS AND ONLY GOT THE RUN AROUND. IF THERE WAS A RECALL FOR THIS PART THE AUDI DEALERSHIP AND AUDI HEADQUARTERS SHOULD HAVE HONORED THIS AND REPLACED THE PART. *TR
Official recalls
307V375000 · Fuel System, Gasoline:delivery:fuel Pump
Aug 28, 2007
ON CERTAIN VEHICLES EQUIPPED WITH 1.8L TURBO, 2.8L V6, OR 3.0L ENGINES, A CHANGE IN THE ELECTRICAL MOTOR COMPONENTS IN THE FUEL PUMP CAN LEAD TO AN INOPERATIVE FUEL PUMP AND, ULTIMATELY, STOPPAGE OF FUEL SUPPLY TO THE ENGINE CAUSING IT TO STALL.
Consequence & remedy
Consequence: IF FUEL FLOW TO THE ENGINE IS INTERRUPTED, THE VEHICLE COULD STALL WITHOUT WARNING AND THUS PRESENT A POTENTIAL RISK OF CRASH.
Remedy: DEALERS WILL INSTALL NEW FUEL PUMPS FREE OF CHARGE. THE RECALL BEGAN ON SEPTEMBER 28, 20007. OWNERS MAY CONTACT VW AT 1-800-222-8987 OR AUDI AT 1-800-822-2834. THIS RECALL IS A SUPPLEMENT TO A PREVIOUS CAMPAIGN (PLEASE SEE 06V017).
06V017000 · Fuel System, Gasoline:delivery:fuel Pump
Jan 23, 2006
ON CERTAIN VEHICLES PRODUCED FROM SEPTEMBER 2002 - MARCH 2003, EQUIPPED WITH 1.8L TURBO, 2.8L V6, OR 3.0L ENGINES, A CHANGE IN THE ELECTRICAL MOTOR COMPONENTS IN THE FUEL PUMP CAN LEAD TO AN INOPERATIVE FUEL PUMP AND, ULTIMATELY, STOPPAGE OF FUEL SUPPLY TO THE ENGINE CAUSING IT TO STALL.
Consequence & remedy
Consequence: IF FUEL FLOW TO THE ENGINE IS INTERRUPTED, THE VEHICLE COULD STALL WITHOUT WARNING AND THUS PRESENT A POTENTIAL RISK OF CRASH.
Remedy: DEALERS WILL INSTALL NEW FUEL PUMPS FREE OF CHARGE. THE RECALL BEGAN ON APRIL 10, 2006. OWNERS MAY CONTACT VW AT 1-800-222-8987 OR AUDI AT 1-800-822-2834.
05V096000 · Exterior Lighting:headlights
Mar 15, 2005
ON CERTAIN PASSENGER VEHICLES, THERE IS A POSSIBILITY OF XENON HEADLAMP COATING DEGRADATION OVER TIME. THE LUMINOUS TRANSMITTANCE OF THE HEADLAMP MAY DECREASE OVER A PERIOD OF TIME.
Consequence & remedy
Consequence: THIS CONDITION COULD AFFECT A DRIVER'S FIELD OF VIEW, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE LEFT AND RIGHT XENON HEADLAMP REFLECTORS FREE OF CHARGE. THE RECALL BEGAN ON APRIL 11, 2005. OWNERS MAY CONTACT AUDI AT 1-800-822-2834.
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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