IllustrationTL*THE CONTACT OWNS A 2004 AUDI A4. THE CONTACT STATED THAT THE TIMING BELT FAILED AND DESTROYED THE ENGINE. THE ENGINE WILL NOT START AND THE VEHICLE CANNOT BE DRIVEN. THE MANUFACTURER HAS NOT BEEN NOTIFIED. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 49,500.
2004 Audi A4
Owner reports · Recalls · Investigations
More warning signs than most A4 years
Owner complaints for the 2004 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
250–25K
4125–50K
5150–75K
2975–100K
16100–150K
6150K+
168 reports with mileage · 21 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.
- Fuel System, Gasoline. Review the 46 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 26 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 18 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
8 crash reports3 fire reports5 injury reports
Engine And Engine Cooling complaints
18 reportsTWO OF THE ORIGINAL "COILS" IN MY 2004 AUDI HAVE FAILED ON SEPARATE OCCASIONS. THESE SHOULD NOT BE FAILING. MY DEALERSHIP STATED THERE IS A HIGH FAILURE RATE. A RECALL OF AUDI COILS WAS LAST MADE IN 2003. I HAVE HAD TO REPLACE ALL THE COILS IN ANTICIPATION OF MORE FAILURES AND UNDER THE RECOMMENDATION OF THE DEALERSHIP T…
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TWO OF THE ORIGINAL "COILS" IN MY 2004 AUDI HAVE FAILED ON SEPARATE OCCASIONS. THESE SHOULD NOT BE FAILING. MY DEALERSHIP STATED THERE IS A HIGH FAILURE RATE. A RECALL OF AUDI COILS WAS LAST MADE IN 2003. I HAVE HAD TO REPLACE ALL THE COILS IN ANTICIPATION OF MORE FAILURES AND UNDER THE RECOMMENDATION OF THE DEALERSHIP THAT STATED I SHOULD EXPECT ALL COILS TO FAIL. AN INTERNET SEARCH INDICATED THIS IS A COMMON PROBLEM. IT APPEARS THERE SHOULD BE A RECALL OF A4 AUDI'S SO THE COILS CAN BE REPLACED AND A REIMBURSEMENT TO PEOPLE LIKE MYSELF WHO HAD TO PAY HUNDREDS OF DOLLARS TO FIX THIS ORIGINAL DEFECT. *TR
2004 AUDI A4 HAS HAD SEVERAL REPAIR PROBLEMS. CONSUMER FEELS THAT THE VEHICLE COULD BE IN AN ACCIDENT DUE TO THE PROBLEMS. *NJ THE CONSUMER STATED ALL OF A SUDDEN, THE VEHICLE STOPPED RUNNING WHILE IN TRAFFIC. THE DEALER WAS UNABLE TO FIND ANY PROBLEMS. SEVERAL MONTHS LATER, THE ENGINE WOULDN'T TURN OVER. THE BATTERY WAS RE…
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2004 AUDI A4 HAS HAD SEVERAL REPAIR PROBLEMS. CONSUMER FEELS THAT THE VEHICLE COULD BE IN AN ACCIDENT DUE TO THE PROBLEMS. *NJ THE CONSUMER STATED ALL OF A SUDDEN, THE VEHICLE STOPPED RUNNING WHILE IN TRAFFIC. THE DEALER WAS UNABLE TO FIND ANY PROBLEMS. SEVERAL MONTHS LATER, THE ENGINE WOULDN'T TURN OVER. THE BATTERY WAS REPLACED AS WELL AS A BULB. THE CONVERTIBLE TOP WOULD NOT GO DOWN. AN ELECTRICAL PART ON THE CONVERTIBLE WAS REPLACED, ONE OF THE HEADLIGHTS HAD BURNED OUT AND THE CRANK PULLEY WAS REPLACED.. *JB THE CONVERTIBLE TOP BECAME STUCK IN THE OPEN POSITION AND HAD TO BE REPLACED. THE CONVERTIBLE TOP REPLACEMENT CAUSED DAMAGED TO THE HEADLINER AS WELL THE DRIVERS SIDE WINDOW HAD A LEAK. UPDATED 02/07/11
ENGINE HAS AN REPEATED BUT INTERMITTENT LOSS OF POWER. USUALLY OCCURS SHORTLY AFTER STARTING THE CAR AND BEFORE THE TEMPERATURE GAGE SHOWS THE ENGINE RUNNING AT NORMAL TEMP. ENGINE CONTINUES TO RUN, BUT WHEN PRESSING GAS PEDAL ALL THE WAY TO THE FLOOR, THERE IS INSUFFICIENT POWER TO MOVE THE CAR. ALSO, WHEN IN NEUTRAL OR PARK…
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ENGINE HAS AN REPEATED BUT INTERMITTENT LOSS OF POWER. USUALLY OCCURS SHORTLY AFTER STARTING THE CAR AND BEFORE THE TEMPERATURE GAGE SHOWS THE ENGINE RUNNING AT NORMAL TEMP. ENGINE CONTINUES TO RUN, BUT WHEN PRESSING GAS PEDAL ALL THE WAY TO THE FLOOR, THERE IS INSUFFICIENT POWER TO MOVE THE CAR. ALSO, WHEN IN NEUTRAL OR PARK, RPM BARELY GOES ABOVE 1500 WHEN PEDAL FULLY DEPRESSED. AFTER WAITING A FEW SECONDS FOR SOMETIMES AS LONG AS A MINUTE, ENGINE WILL REGAIN POWER AND WILL THEN OPERATE NORMALLY. THIS HAS HAPPENED AT LEAST 10 TIMES FROM OCT07 (WHEN PURCHASED CAR USED) THROUGH 22 APRIL. MANUFACTURER TECHNICIAN IS UNABLE TO LOCATE PROBLEM. *TR
CAR IS 2004 AUDI A4 WITH 1.8 ENGINE AND CVT TRANSMISSION. CAR'S ENGINE WILL UPON ACCELERATION FROM STANDSTILL, OFTEN HESITATE AND STUMBLE. AT TIMES WHEN MAKING A LEFT HAND TURN ACROSS TRAFFIC FROM STANDSTILL, IT WILL AT TIMES NOT ONLY HESITATE, BUT ACTUALLY STALL OR HAVE A NO POWER SITUATION FOR A COUPLE OF SECONDS. THIS HAS…
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CAR IS 2004 AUDI A4 WITH 1.8 ENGINE AND CVT TRANSMISSION. CAR'S ENGINE WILL UPON ACCELERATION FROM STANDSTILL, OFTEN HESITATE AND STUMBLE. AT TIMES WHEN MAKING A LEFT HAND TURN ACROSS TRAFFIC FROM STANDSTILL, IT WILL AT TIMES NOT ONLY HESITATE, BUT ACTUALLY STALL OR HAVE A NO POWER SITUATION FOR A COUPLE OF SECONDS. THIS HAS LED TO SEVERAL NEAR ACCIDENTS. I HAVE REPORTED TO OUR AUDI DEALERS SERVICE DEPARTMENT A NUMBER OF TIME. EACH TIME, THEY MERELY SAY THAT THEY CANNOT FIND THE PROBLEM AND RETURN AUTO TO US. A COUPLE OF TIMES THEY HAVE SAID THAT THEY HAVE DOWNLOADED SOFTWARE FIXES TO THE AUTOMOBILES ECM(COMPUTER). *TR (EXCERPT FROM E-MAIL 4-1-08) I WAS THEN TOLD BY ONE SERVICE REP THAT HE HAD SEEN THIS PROBLEM ON THOSE AUDI'S THAT ARE EQUIPPED WITH THE SO CALLED "CVT" TRANSMISSION BEFORE BUT THAT AUDI HAS BEEN UNABLE TO ADDRESS. HE SAID THAT HE APPLIED A SOFTWARE FIX TO THE AUTO'S ELECTRONIC MANAGEMENT COMPUTER, BUT THIS DID NOT HELP. *SMCH
I AM HAVING ONGOING MAJOR ISSUES (EQUIPMENT AND SAFETY) WITH MY AUDI A4 CABRIOLET WITH NO RESOLUTION FROM MY LOCAL DEALER OR AUDI CUSTOMER CARE AGENTS. I HAVE HAD MY CAR TOWED THREE TIMES IN THREE MONTHS. MOST RECENTLY(JULY 21) MY CAR WAS UNDRIVEABLE, LEAVING ME STRANDED 2.5 HOURS FROM HOME. THE ENGINE STARTED TO "SKIP" AND "MI…
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I AM HAVING ONGOING MAJOR ISSUES (EQUIPMENT AND SAFETY) WITH MY AUDI A4 CABRIOLET WITH NO RESOLUTION FROM MY LOCAL DEALER OR AUDI CUSTOMER CARE AGENTS. I HAVE HAD MY CAR TOWED THREE TIMES IN THREE MONTHS. MOST RECENTLY(JULY 21) MY CAR WAS UNDRIVEABLE, LEAVING ME STRANDED 2.5 HOURS FROM HOME. THE ENGINE STARTED TO "SKIP" AND "MISS" THE CHECK ENGINE LIGHT STARTED FLASHING AND THE CHECK OIL INDICATOR CAME ON. I MANAGED TO GET OFF THE HIGHWAY INTO A PARKING LOT. THE PERSON WITH ME CAN VERIFY THAT THE ENGINE/CAR FELT LIKE IT WAS BOUNCING OR VIBRATING. PRIOR TO THAT, MY CAR STALLED IN THE MIDDLE OF INTERSTATE 264 IN NORFOLK, VA. IT WAS A NEAR DEATH EXPERIENCE TRYING TO GET OUT OF THE MIDDLE OF THAT HIGHWAY. THE CAR STALLED WHEN I WAS LEAVING WORK. I DECIDED TO TRY TO MAKE IT HOME ONCE IT RESTARTED. ONCE I STARTED TO ACCELERATE ONTO THE INTERSTATE, THE CAR WOULD SPORADICALLY ACCELERATE. IT FELT LIKE A "STOP AND GO" SITUATION. IT PROGRESSIVELY GOT WORSE OVER A DISTANCE OF ABOUT 300 YARDS, FINALLY STALLING. THE DEALER SAID THEY COULD NO REPLICATE THE PROBLEM. AUDI REFUSED ANY FURTHER ACTION ON MY CAR AFTER REPEATED REQUESTS. THE FIRST TIME MY CAR WAS TOWED WAS FROM MY OWN LOCAL STREET: THE SAFEST PLACE OF THREE LOCATIONS WHERE I'VE BEEN TOWED. THE DEALER MAINTAINS THEY CAN NOT FIND A PROBLEM FOR THE SECOND AND THIRD TOWS. I FEAR FOR MY OWN SAFETY TO RIDE IN THIS AUDI CAR. FAMILY MEMBERS NOW REFUSE TO RIDE IN THIS PRODUCT. FRIENDS AND CO-WORKERS HAVE WITNESSED THE PROBLEMS FIRST HAND AS WELL. I HAVE MADE REPEATED REQUESTS TO AUDIO CUSTOMER CARE TO: 1. GET THE CAR REPAIRED PROPERLY 2. REPLACE THE ENGINE 3. EXTEND THE WARRANTY 4. OFFER A REASONABLE TRADE-IN 5. BUY BACK THE CAR I HAVE BEEN REJECTED ALL ALONG THE WAY. I AM AGAIN BEGGING AND PLEADING FOR SOMEONE AT AUDI TO OFFER REASONABLE HELP HERE. I'M NOT ASKING FOR MUCH. I'M SIMPLY ASKING FOR A CAR THAT RUNS TO ANY ACCEPTABLE STANDARDS WHERE I CAN BELIEVE I AM SAFE. PLEASE HELP. *NM
WHEN THE CONSUMER CAME TO A STOP AT AN INTERSECTION, THE VEHICLE STALLED. *JB
VEHICLE HEATED UP UNDER THE STEERING COLUMN, ESPECIALLY WHEN DRIVING 50 MPH OR GREATER. CONSUMER TOOK VEHICLE TO THE DEALER, AND THEY TEST DROVE THE VEHICLE FOR EIGHT DAYS AND FOUND THE SAME FLAW AS THE CONSUMER. MANUFACTURER INDICATED THAT THE VEHICLE WAS OPERATING UNDER NORMAL RANGE, AND THERE WAS NOTHING THEY COULD DO. …
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VEHICLE HEATED UP UNDER THE STEERING COLUMN, ESPECIALLY WHEN DRIVING 50 MPH OR GREATER. CONSUMER TOOK VEHICLE TO THE DEALER, AND THEY TEST DROVE THE VEHICLE FOR EIGHT DAYS AND FOUND THE SAME FLAW AS THE CONSUMER. MANUFACTURER INDICATED THAT THE VEHICLE WAS OPERATING UNDER NORMAL RANGE, AND THERE WAS NOTHING THEY COULD DO. *AK *NM
Official recalls
216V382000 · Air Bags:frontal:passenger Side:inflator Module
Jun 1, 2016
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2004-2008 Audi A4, and 2005-2011 Audi A6 vehicles originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or "Zone A." Additionally, unless included in "Zone A" above, Volkswagen is recalling certain model year 2004-2008 Audi A4, and 2005-2008 Audi A6 vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Lastly, unless included in "Zone A" or "Zone B" above, Volkswagen is recalling model year 2004 Audi A4 vehicles originally sold, or registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Consequence & remedy
Consequence: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
Remedy: Audi will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. Owner notification letters were mailed April 28, 2017. Owners may contact Audi customer service 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
1PE08027 · Engine Stalling - Fuel Pump Failure
Opened Apr 14, 2008 · Closed Aug 6, 2008
Status: closed (inferred from source dates) · Fuel System, Gasoline; Fuel System, Gasoline:delivery; Fuel System, Gasoline:delivery:fuel Pump
IN RESPONSE TO ODI'S INFORMATION REQUEST FOR PE08-027, VOLKSWAGEN AG (VW) STATED THAT IT BELIEVES THAT THE POSSIBLE CAUSAL OR CONTRIBUTORY FACTORS OF THE ALLEGED DEFECT IN THE SUBJECT VEHICLES COULD RESULT FROM EXCESSIVE ACCUMULATION OF FOREIGN MATERIALS IN THE FUEL FILTER.IN RARE CASES, THE FUEL FILTER COULD BECOME CLOGGED, WHICH CAN CAUSE INCREASED PRESSURE ON THE PUMP.VW INDICATED THAT ENGINE STALLS RESULTING FROM THIS CONDITION ARE RARE AND WOULD BE PRECEDED BY SYMPTOMS SUCH AS REDUCED ENGINE POWER, NOISE OR HESITATION.ODI'S ANALYSIS OF COMPLAINT AND WARRANTY DATA DETERMINED THAT THE RATE OF ENGINE STALL INCIDENTS RESULTING FROM FUEL PUMP FAILURE IS LOW AT APPROXIMATELY 0.2 PERCENT AFTER THREE YEARS IN SERVICE. ON JANUARY 17, 2006, VW SUBMITTED A DEFECT INFORMATION REPORT TO ODI CONCERNING A SAFETY RECALL TO ADDRESS A DEFECT IN THE FUEL PUMPS OF APPROXIMATELY 74,000 MODEL YEAR (MY) 2003 VOLKSWAGEN PASSAT (47,000), AUDI A4 (20,000) AND AUDI A6 (7,000) VEHICLES BUILT FROM SEPTEMBER 2002 THROUGH MARCH 2003 (NHTSA RECALL NO. 06V-017, VW RECALL NOS. M7 FOR PASSAT AND JL FOR AUDI A4 AND A6).ACCORDING TO VW, A SUB-SUPPLIER EXPERIENCED AN UNKNOWN CHANGE IN THE MATERIAL COMPOSITION OF THE CARBON-BRUSH SET USED IN THE ELECTRIC MOTOR IN THE FUEL PUMP, WHICH COULD LEAD TO INCREASED WEAR OF THE CARBON-BRUSH SETS, WHICH IN TURN CAN LEAD TO AN INOPERATIVE FUEL PUMP AND, ULTIMATELY, STOPPAGE OF FUEL SUPPLY TO THE ENGINE.ON JULY 23, 2007, VW EXPANDED THE SCOPE OF THE RECALL TO INCLUDE VEHICLES MANUFACTURED FROM AUGUST 2002 THROUGH APRIL 2003, ADDING ANOTHER 34,358 VEHICLES TO THE ORIGINAL RECALL (24,801 VOLKSWAGEN PASSAT, 7,436 AUDI A4 AND 2,121 AUDI A6 VEHICLES).ODI ASSIGNED RECALL NO. 07V-375 TO THE AMENDED RECALL REPORT. THE MY 2004 AUDI A4 VEHICLES THAT ARE THE SUBJECT OF PE08-027 ARE NOT AFFECTED BY THE SUB-SUPPLIER ISSUE THAT PROMPTED 06V-017 AND 07V-375.PRODUCTION OF THE MY 2004 VEHICLES BEGAN FOUR MONTHS AFTER THE AMENDED PRODUCTION RANGE IDENTIFIED IN 07V-375.THE FUEL PUMP FAILURES IN THE MY 2004 VEHICLES HAVE DIFFERENT CAUSES THAN THE DEFECT IDENTIFIED IN THE PRIOR RECALL POPULATIONS AND HAVE OCCURRED AT MUCH LOWER FREQUENCIES. FURTHER INVESTIGATION OF THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FIND BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.
Additional source detail variants (3)
Fuel System, Gasoline:delivery:fuel Pump
IN RESPONSE TO ODI'S INFORMATION REQUEST FOR PE08-027, VOLKSWAGEN AG (VW) STATED THAT IT BELIEVES THAT THE POSSIBLE CAUSAL OR CONTRIBUTORY FACTORS OF THE ALLEGED DEFECT IN THE SUBJECT VEHICLES COULD RESULT FROM EXCESSIVE ACCUMULATION OF FOREIGN MATERIALS IN THE FUEL FILTER.IN RARE CASES, THE FUEL FILTER COULD BECOME CLOGGED, WHICH CAN CAUSE INCREASED PRESSURE ON THE PUMP.VW INDICATED THAT ENGINE STALLS RESULTING FROM THIS CONDITION ARE RARE AND WOULD BE PRECEDED BY SYMPTOMS SUCH AS REDUCED ENGINE POWER, NOISE OR HESITATION.ODI'S ANALYSIS OF COMPLAINT AND WARRANTY DATA DETERMINED THAT THE RATE OF ENGINE STALL INCIDENTS RESULTING FROM FUEL PUMP FAILURE IS LOW AT APPROXIMATELY 0.2 PERCENT AFTER THREE YEARS IN SERVICE. ON JANUARY 17, 2006, VW SUBMITTED A DEFECT INFORMATION REPORT TO ODI CONCERNING A SAFETY RECALL TO ADDRESS A DEFECT IN THE FUEL PUMPS OF APPROXIMATELY 74,000 MODEL YEAR (MY) 2003 VOLKSWAGEN PASSAT (47,000), AUDI A4 (20,000) AND AUDI A6 (7,000) VEHICLES BUILT FROM SEPTEMBER 2002 THROUGH MARCH 2003 (NHTSA RECALL NO. 06V-017, VW RECALL NOS. M7 FOR PASSAT AND JL FOR AUDI A4 AND A6).ACCORDING TO VW, A SUB-SUPPLIER EXPERIENCED AN UNKNOWN CHANGE IN THE MATERIAL COMPOSITION OF THE CARBON-BRUSH SET USED IN THE ELECTRIC MOTOR IN THE FUEL PUMP, WHICH COULD LEAD TO INCREASED WEAR OF THE CARBON-BRUSH SETS, WHICH IN TURN CAN LEAD TO AN INOPERATIVE FUEL PUMP AND, ULTIMATELY, STOPPAGE OF FUEL SUPPLY TO THE ENGINE.ON JULY 23, 2007, VW EXPANDED THE SCOPE OF THE RECALL TO INCLUDE VEHICLES MANUFACTURED FROM AUGUST 2002 THROUGH APRIL 2003, ADDING ANOTHER 34,358 VEHICLES TO THE ORIGINAL RECALL (24,801 VOLKSWAGEN PASSAT, 7,436 AUDI A4 AND 2,121 AUDI A6 VEHICLES).ODI ASSIGNED RECALL NO. 07V-375 TO THE AMENDED RECALL REPORT. THE MY 2004 AUDI A4 VEHICLES THAT ARE THE SUBJECT OF PE08-027 ARE NOT AFFECTED BY THE SUB-SUPPLIER ISSUE THAT PROMPTED 06V-017 AND 07V-375.PRODUCTION OF THE MY 2004 VEHICLES BEGAN FOUR MONTHS AFTER THE AMENDED PRODUCTION RANGE IDENTIFIED IN 07V-375.THE FUEL PUMP FAILURES IN THE MY 2004 VEHICLES HAVE DIFFERENT CAUSES THAN THE DEFECT IDENTIFIED IN THE PRIOR RECALL POPULATIONS AND HAVE OCCURRED AT MUCH LOWER FREQUENCIES. FURTHER INVESTIGATION OF THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FIND BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.
Fuel System, Gasoline:delivery
IN RESPONSE TO ODI'S INFORMATION REQUEST FOR PE08-027, VOLKSWAGEN AG (VW) STATED THAT IT BELIEVES THAT THE POSSIBLE CAUSAL OR CONTRIBUTORY FACTORS OF THE ALLEGED DEFECT IN THE SUBJECT VEHICLES COULD RESULT FROM EXCESSIVE ACCUMULATION OF FOREIGN MATERIALS IN THE FUEL FILTER.IN RARE CASES, THE FUEL FILTER COULD BECOME CLOGGED, WHICH CAN CAUSE INCREASED PRESSURE ON THE PUMP.VW INDICATED THAT ENGINE STALLS RESULTING FROM THIS CONDITION ARE RARE AND WOULD BE PRECEDED BY SYMPTOMS SUCH AS REDUCED ENGINE POWER, NOISE OR HESITATION.ODI'S ANALYSIS OF COMPLAINT AND WARRANTY DATA DETERMINED THAT THE RATE OF ENGINE STALL INCIDENTS RESULTING FROM FUEL PUMP FAILURE IS LOW AT APPROXIMATELY 0.2 PERCENT AFTER THREE YEARS IN SERVICE. ON JANUARY 17, 2006, VW SUBMITTED A DEFECT INFORMATION REPORT TO ODI CONCERNING A SAFETY RECALL TO ADDRESS A DEFECT IN THE FUEL PUMPS OF APPROXIMATELY 74,000 MODEL YEAR (MY) 2003 VOLKSWAGEN PASSAT (47,000), AUDI A4 (20,000) AND AUDI A6 (7,000) VEHICLES BUILT FROM SEPTEMBER 2002 THROUGH MARCH 2003 (NHTSA RECALL NO. 06V-017, VW RECALL NOS. M7 FOR PASSAT AND JL FOR AUDI A4 AND A6).ACCORDING TO VW, A SUB-SUPPLIER EXPERIENCED AN UNKNOWN CHANGE IN THE MATERIAL COMPOSITION OF THE CARBON-BRUSH SET USED IN THE ELECTRIC MOTOR IN THE FUEL PUMP, WHICH COULD LEAD TO INCREASED WEAR OF THE CARBON-BRUSH SETS, WHICH IN TURN CAN LEAD TO AN INOPERATIVE FUEL PUMP AND, ULTIMATELY, STOPPAGE OF FUEL SUPPLY TO THE ENGINE.ON JULY 23, 2007, VW EXPANDED THE SCOPE OF THE RECALL TO INCLUDE VEHICLES MANUFACTURED FROM AUGUST 2002 THROUGH APRIL 2003, ADDING ANOTHER 34,358 VEHICLES TO THE ORIGINAL RECALL (24,801 VOLKSWAGEN PASSAT, 7,436 AUDI A4 AND 2,121 AUDI A6 VEHICLES).ODI ASSIGNED RECALL NO. 07V-375 TO THE AMENDED RECALL REPORT. THE MY 2004 AUDI A4 VEHICLES THAT ARE THE SUBJECT OF PE08-027 ARE NOT AFFECTED BY THE SUB-SUPPLIER ISSUE THAT PROMPTED 06V-017 AND 07V-375.PRODUCTION OF THE MY 2004 VEHICLES BEGAN FOUR MONTHS AFTER THE AMENDED PRODUCTION RANGE IDENTIFIED IN 07V-375.THE FUEL PUMP FAILURES IN THE MY 2004 VEHICLES HAVE DIFFERENT CAUSES THAN THE DEFECT IDENTIFIED IN THE PRIOR RECALL POPULATIONS AND HAVE OCCURRED AT MUCH LOWER FREQUENCIES. FURTHER INVESTIGATION OF THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FIND BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.
Fuel System, Gasoline
IN RESPONSE TO ODI'S INFORMATION REQUEST FOR PE08-027, VOLKSWAGEN AG (VW) STATED THAT IT BELIEVES THAT THE POSSIBLE CAUSAL OR CONTRIBUTORY FACTORS OF THE ALLEGED DEFECT IN THE SUBJECT VEHICLES COULD RESULT FROM EXCESSIVE ACCUMULATION OF FOREIGN MATERIALS IN THE FUEL FILTER.IN RARE CASES, THE FUEL FILTER COULD BECOME CLOGGED, WHICH CAN CAUSE INCREASED PRESSURE ON THE PUMP.VW INDICATED THAT ENGINE STALLS RESULTING FROM THIS CONDITION ARE RARE AND WOULD BE PRECEDED BY SYMPTOMS SUCH AS REDUCED ENGINE POWER, NOISE OR HESITATION.ODI'S ANALYSIS OF COMPLAINT AND WARRANTY DATA DETERMINED THAT THE RATE OF ENGINE STALL INCIDENTS RESULTING FROM FUEL PUMP FAILURE IS LOW AT APPROXIMATELY 0.2 PERCENT AFTER THREE YEARS IN SERVICE. ON JANUARY 17, 2006, VW SUBMITTED A DEFECT INFORMATION REPORT TO ODI CONCERNING A SAFETY RECALL TO ADDRESS A DEFECT IN THE FUEL PUMPS OF APPROXIMATELY 74,000 MODEL YEAR (MY) 2003 VOLKSWAGEN PASSAT (47,000), AUDI A4 (20,000) AND AUDI A6 (7,000) VEHICLES BUILT FROM SEPTEMBER 2002 THROUGH MARCH 2003 (NHTSA RECALL NO. 06V-017, VW RECALL NOS. M7 FOR PASSAT AND JL FOR AUDI A4 AND A6).ACCORDING TO VW, A SUB-SUPPLIER EXPERIENCED AN UNKNOWN CHANGE IN THE MATERIAL COMPOSITION OF THE CARBON-BRUSH SET USED IN THE ELECTRIC MOTOR IN THE FUEL PUMP, WHICH COULD LEAD TO INCREASED WEAR OF THE CARBON-BRUSH SETS, WHICH IN TURN CAN LEAD TO AN INOPERATIVE FUEL PUMP AND, ULTIMATELY, STOPPAGE OF FUEL SUPPLY TO THE ENGINE.ON JULY 23, 2007, VW EXPANDED THE SCOPE OF THE RECALL TO INCLUDE VEHICLES MANUFACTURED FROM AUGUST 2002 THROUGH APRIL 2003, ADDING ANOTHER 34,358 VEHICLES TO THE ORIGINAL RECALL (24,801 VOLKSWAGEN PASSAT, 7,436 AUDI A4 AND 2,121 AUDI A6 VEHICLES).ODI ASSIGNED RECALL NO. 07V-375 TO THE AMENDED RECALL REPORT. THE MY 2004 AUDI A4 VEHICLES THAT ARE THE SUBJECT OF PE08-027 ARE NOT AFFECTED BY THE SUB-SUPPLIER ISSUE THAT PROMPTED 06V-017 AND 07V-375.PRODUCTION OF THE MY 2004 VEHICLES BEGAN FOUR MONTHS AFTER THE AMENDED PRODUCTION RANGE IDENTIFIED IN 07V-375.THE FUEL PUMP FAILURES IN THE MY 2004 VEHICLES HAVE DIFFERENT CAUSES THAN THE DEFECT IDENTIFIED IN THE PRIOR RECALL POPULATIONS AND HAVE OCCURRED AT MUCH LOWER FREQUENCIES. FURTHER INVESTIGATION OF THIS MATTER WOULD NOT BE AN EFFICIENT ALLOCATION OF AGENCY RESOURCES.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FIND BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.