2003 Audi A6 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2003 Audi A6, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Fuel system2126.3%
- Electrical1417.5%
- Brakes78.8%
- Tires & wheels67.5%
- Transmission67.5%
- Engine67.5%
- Driver assistance45.0%
- Powertrain (other)45.0%
- Visibility33.8%
- Body & structure22.5%
- Steering22.5%
- Suspension22.5%
- Exterior lighting11.3%
- Airbags11.3%
- Other / unspecified11.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
THE GAS TANK OR COMPONENTS OF THE TANK ARE LEAKING GAS WHEN MORE THAN A SMALL AMOUNT OF GAS IS PUT INTO THE TANK. GAS LEAKS ALL OVER THE GROUND FROM THE TANK AND THE CABIN FILLS WITH GAS FUMES. MY 18 SON HAS BEEN DRIVING THIS CAR AND I WILL NOT ALLOW HIM OR ANYONE ELSE TO DRIVE THE CAR NOW. AFTER READING ONLINE THAT MANY PEOPLE HAVE THIS SAME PROBLEM, I AM SHOCKED THAT THIS IS NOT A RECALL WHEN IT COULD BE POTENTIALLY LIFE THREATENING AND THAT AUDI WANTS TO CHARGE 3K TO LOWER THE TANK AND REPAIR.
CHECK ENGINE LIGHT ON, VEHICLE WILL NOT PASS EMISSIONS TESTING. AUDI DETERMINED THAT IT WAS DUE TO A FUEL LEAK FROM A CRACK IN THE PASSENGER SIDE REAR ROLLOVER VALVE. VEHICLE HAD BEEN RECALLED IN PAST FOR SIMILAR ISSUE (PERFORMED). TANK HAS 4 ROLLOVER VALVES, ONLY ONE (FRONT DRIVER) INCLUDED IN PRIOR RECALL. INITIAL QUOTED $3,300 TO REPLACE TANK. AUDI OFFERED TO PAY FOR REPLACEMENT TANK WITH THE EXCEPTION OF ~$600 (REPAIR ORDER ATTACHED). REPAIR COMPLETED ON 2/23/2017, CAR PASSES STATE INSPECTION. AS YOU CAN SEE BY THE "STAINING" IN THE ATTACHED PHOTO, THE LEAK WAS SIGNIFICANT DEALER THEN CALLS TO SAY THAT CAR NEEDS TO BE RETURNED TO PERFORM PRIOR RECALL ON THE NEWLY INSTALLED TANK. RECALL TO BE PERFORMED ON ONLY THE ONE ROLLOVER VALVE (DRIVER FRONT) THAT CAN BE ACCESSED WITH OUT REMOVING FUEL TANK. NOT THE VALVE THAT WAS LEAKING AND NECESSITATED THE REPLACEMENT. I REQUESTED THAT AUDI PERFORM RECALL ON ALL 4 ROLLOVER VALVES AS THEY INSTALLED A KNOWINGLY DEFECTIVE PART AND THE RISK OF ANOTHER CRACK/LEAK EXISTS. DEALER SAYS AUDI REFUSES. I HAVE MADE SEVERAL CALLS TO BOTH DEALER AND AUDI WITH NO RESPONSE FROM AUDI BEYOND A CONVERSATION WITH CUSTOMER SERVICE. CHECK ENGINE LIGHT BACK ON 5/08/2017. EMAILED DEALER ON 5/11/2017 (ATTACHED PDF) WITH MY REQUEST (AGAIN), AND HAVE RECEIVED NO CONTACT FROM AUDI. RETURNING CAR TO DEALER FOR RECALL ON THE ONE ROLLOVER VALVE ON 7/12/17. AUDI IS PUTTING THIS CAR BACK ON THE ROAD WITH THE STRONG POTENTIAL OF A FUEL LEAK.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
FAILED CT EMISSIONS TEST. CHECK ENGINE LIGHT ILLUMINATED. CONFIRMED CODE TO BE P0741. INFORMED BY AUTHORIZED TECHNICIAN THAT THE TORQUE CONVERTER REQUIRES REPLACEMENT. *TR
AT TIMES WHEN DRIVING THE CAR THE ACCELERATION BECOMES SLOW AND IT STALLS WITH A JERK LIKE IT'S GOING TO JUST STOP ALSO, WHEN THE CAR IS PUT IN REVERSE GEAR IT WILL NOT MOVE. I AM STUCK. THE PRND FLASHING ON THE DASHBOARD. I BECOME AFRAID BECAUSE THIS CAN CAUSE SERIOUS ACCIDENTS.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
CAR BRAKE LIGHTS ARE ON ALL THE TIME AND IT REVES ALL THE TIME. *TR
TL* THE CONTACT OWNS A 2003 AUDI A6 2.7 QUATTRO. THE CONTACT STATED WHILE TRAVELING 20 MPH THE ABS SYSTEM ACTIVATED CAUSING THE VEHICLE TO VEER TO THE LEFT. THE VEHICLE WAS ABLE TO BE DRIVEN TO THE CONTACT'S HOME. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 89,000 AND THE CURRENT MILEAGE WAS 90,500.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
TL*- THE CONTACT OWNS A 2003 2003 AUDI A6 QUARTO. WHILE DRIVING 65MPH ON THE HIGHWAY THE CONTACT HEARD A LOW BUMPING SOUND. THE VEHICLE THEN STARTED TO PULL TO THE RIGHT. THE VEHICLE WAS TAKEN TO THE DEALERSHIP AND THEY INFORMED THE CONTACT THAT BOTH FRONT TIRES STEEL BELTS WERE COMPLETELY SHREDDED. THE ROAD CONDITIONS WERE CLEAR. THERE WEREN'T ANY POT HOLES NOR OTHER ROAD HAZARDS VISIBLE. THE FAILURE MILEAGE WAS 12000 MILES ON THE KUMHO ECSTA ASX TIRES. THE VEHICLE CURRENTLY HAS 44800 MILES.
2003 AUDI A6 HAD FOUR TIRES REPLACED DUE TO CRACKING OF THE SIDEWALL. *KB ***NAR*** THE CONSUMER BELIEVES THAT WHEN TOUCHING THE CURB WHILE PARKING, THE SIDEWALL BEING SO THIN AND LOW PROFILE, SIMPLY CRACK, FAIL AND PUNCTURE. THE SIDEWALLS CANNOT BE FIXED. THIS PROBLEM HAS OCCURRED FOUR TIMES IN THE LAST TWO YEARS. (PIRELLI P6 FOUR SEASON LOW PROFILES TIRES). *NM *NM
Too few reports in this category for a page of its own — they appear in the full complaint list.
Transmission
Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.
From owner reports, verbatim
CAR COMPLETELY STOPPED IN THE MIDDLE OF HIGHWAY AND CAR BEHIND ALMOST HIT ME. TRANSMISSION FAILED SUDDENLY. IT HAD TO BE REPLACED. RECURRING PROBLEM WITH AUDI A6 3.0 2003 CVT. *TR
CAR SHUDDERS WHEN ACCELERATING MAINLY AND ALSO SLIGHTLY FELT WHEN BRAKING-DEALER RECOMMENDS REPLACEMENT TRANSMISSION. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2003 AUDI A6. WHILE DRIVING VARIOUS SPEEDS, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT STATED THAT THE FAILURE OCCURRED MULTIPLE TIMES. THE VEHICLE WAS TAKEN TO AN UNKNOWN DEALER AND THE CRANKSHAFT SENSOR WAS REPLACED, BUT THE FAILURE PERSISTED. THE VEHICLE WAS NOT TAKEN BACK TO A DEALER FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS CONTACTED, BUT WAS UNABLE TO ASSIST. THE FAILURE MILEAGE WAS 149,000.
TL* TAKATA RECALL. THE CONTACT OWNS A 2003 AUDI A6. THE CONTACT STATED WHILE DRIVING AT VARIOUS SPEEDS ON THE HIGHWAY, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. A DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOT CONTACTED AND MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 149,000. THE VIN WAS NOT AVAILABLE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
CAR BRAKE LIGHTS ARE ON ALL THE TIME AND IT REVES ALL THE TIME. *TR
I HAVE LOCKED MY BRAKES AND HAD A NEAR ACCIDENT. MY ABS AND ESP HAS STOPPED WORKING ON MY 2003 AUDI A6. I WAS TOLD THE ABS CONTROL UNITS ARE KNOWN TO GO BAD, AND WILL COST OVER A $1000 TO FIX. I CANNOT AFFORD TO FIX. IF THIS IS A WIDESPREAD PROBLEM, SHOULDN'T AUDI BE HELD ACCOUNTABLE FOR ANY TRAFFIC ACCIDENTS DUE TO FAILURE, AND SHOULD THERE BE A RECALL? *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
FAILED CT EMISSIONS TEST. CHECK ENGINE LIGHT ILLUMINATED. CONFIRMED CODE TO BE P0741. INFORMED BY AUTHORIZED TECHNICIAN THAT THE TORQUE CONVERTER REQUIRES REPLACEMENT. *TR
TORQUE CONVERTER DISENGAGES AND POWER / RPM SURGE OCCURS. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
THE WINDSHIELD WASHER SYSTEM FAILS ROUTINELY IN AUDI A6 MODELS 1998 TO 2005 CAUSING THE FLUID RESERVOIR TO RAPIDLY EMPTY LEADING TO LOSS OF VISIBILITY IN BAD WEATHER LEADING TO A TRAFFIC SAFETY HAZARD. *TR
WINDSHIELD WIPERS STOP DURING WIPER CYCLE. WIPERS DO NOT RESET OR RESTART FOR 30-45 SECONDS AFTER STOPPING. WIPERS WILL NOT START OR RESET IF DRIVER MOVES WIPER SELECTOR LEVER DURING MALFUNCTION INTO ANY MODE, DELAY, LOW OR HI. PROBLEM ONLY OCCURS WHEN RAINING. COULD NOT DUPLICATE EFFECT IN DRY WEATHER. PROBLEM PRIMARILY OCCURS WHEN WIPERS ARE IN THE DELAY MODE. WIPERS WILL STOP AT ANY ANGLE ON WINDSHIELD WHEN MALFUNCTION STARTS. PROBLEM DURATION AND FREQUENCY INCREASED WITH TIME FROM SEVERAL TIMES A MONTH TO EVERY 60-90 SECONDS WHILE WIPERS WHERE ACTIVATED OVER 12 MONTH PERIOD. VEHICLE UNDER WARRANTY. DEALER COULD NOT DUPLICATE EFFECT. DURING WIPER MALFUNCTION, IF WIPER SELECTOR LEVER IS MOVED TO THE OFF POSITION WHILE WIPERS ARE STUCK IN A RAISED/ELEVATED POSITION, WIPERS WILL NOT RESET. WIPERS WILL REMAIN IN MALFUNCTIONING POSITION ON WINDSHIELD UNTIL WIPER SELECTOR LEVER IS MOVED TO DELAY/LO/ OR HI SETTING AND THEN WIPER WILL RESUME NORMAL FUNCTION AFTER 60-90 SECONDS. DEALER HAS NOT TAKING ACTION TO CORRECT THIS PROBLEM AFTER REPEATED REQUESTS BY OWNER. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
DT: CONSUMER MADE A TURN AND ABOUT 2 GALLONS OF WATER CAME OUT FROM UNDER THE FRONT PASSENGER'S SEAT INTO THE REAR PASSENGERS SEAT FLOOR BOARD. TOOK VEHICLE TO DEALERSHIP, WHO SAID IT COULD BE THAT THE CONDENSER LINE WASN'T PLUGGED, AND THEN A FACTORY SEAL ABOVE THE CONDENSER WAS FAULTY. SUPPOSEDLY FIXED IT, HOWEVER, IT RECURRED THIS PAST WEEKEND. *AK
THE FRONT BUMPER GETS CAUGHT ON PARKING BUMPERS ON A REGULAR BASIS. ON THIS OCCASION, IT WAS TORN FROM THE FENDER, AND CAUSED DAMAGE TO THE FENDER. IT HAS OCCURRED ON COUNTLESS OCCASIONS SINCE THEN. THE CAR IS DESIGNED WITH THE LOWER BUMPER TOO CLOSE TO THE GROUND.*JB
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
I WAS DRIVING IN LIGHT RAIN AND SAW A SMALL PUDDLE OF WATER AHEAD SO I SLOWED DOWN AND WENT THROUGH IT AT 10MPH, ALL OF THE SUDDEN MY STEERING WHEEL LOCKS UP AND IS STUCK GOING RIGHT, GRINDING NOISE CAME FROM THE FRONT DRIVERS WHEEL. I SOMEHOW MANAGED TO GET THE VEHICAL TO A FIRE STATION AND PARK IT THERE AFTER 30M AND ONLY GOING 20FT THEN ALL OF A SUDDEN WHILE I'M PRESSING THE GAS PEDDLE THE HORRIBLE GRINDING NOISE COMES BACK AND THE CAR GOES NO WHERE IN DRIVE OR REVERSE.
STEERING WHEEL SHAKE AT 50 TO 60 MPH. MANY ATTEMPTS TO FIX PROBLEM HAS NOT HELPED. OTHER A6 OWNERS HAVE THE SAME PROBLEM. PROBLEM NOTED ON FIRST DRIVE AT 150 MILES AND STILL PRESENT AT 4000 MILES.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
I WAS DRIVING IN LIGHT RAIN AND SAW A SMALL PUDDLE OF WATER AHEAD SO I SLOWED DOWN AND WENT THROUGH IT AT 10MPH, ALL OF THE SUDDEN MY STEERING WHEEL LOCKS UP AND IS STUCK GOING RIGHT, GRINDING NOISE CAME FROM THE FRONT DRIVERS WHEEL. I SOMEHOW MANAGED TO GET THE VEHICAL TO A FIRE STATION AND PARK IT THERE AFTER 30M AND ONLY GOING 20FT THEN ALL OF A SUDDEN WHILE I'M PRESSING THE GAS PEDDLE THE HORRIBLE GRINDING NOISE COMES BACK AND THE CAR GOES NO WHERE IN DRIVE OR REVERSE.
STEERING WHEEL SHAKE AT 50 TO 60 MPH. MANY ATTEMPTS TO FIX PROBLEM HAS NOT HELPED. OTHER A6 OWNERS HAVE THE SAME PROBLEM. PROBLEM NOTED ON FIRST DRIVE AT 150 MILES AND STILL PRESENT AT 4000 MILES.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
CAR BRAKE LIGHTS ARE ON ALL THE TIME AND IT REVES ALL THE TIME. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
WHILE DRIVING 30 MPH CONSUMER'S VEHICLE WAS INVOLVED IN A HEAD ON COLLISION. UPON IMPACT, DUAL AIR BAGS DID NOT DEPLOY. DRIVER SUSTAINED BACK AND SHOULDER PAIN. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
BRAKE LIGHTS HAVE STOPPED WORKING. ALONG WITH ABS, TRACTION & STABILITY CONTROL. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .