IllustrationThe contact owns a 2004 Audi A4. The contact stated while driving approximately 35 MPH, the rear windshield became detached from the soft top. The vehicle was not taken to a dealer to be inspected. The manufacturer was informed of the failure and was awaiting a response. The failure mileage was approximately 86,000.
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
Visibility complaints
16 reportsMY VEHICLE IS A 2004 AUDI A4 CABRIOLET WITH A 1.8T ENGINE. WINDSHIELD WIPERS STOP WORKING. WHILE DRIVING ON THE PA TURNPIKE IN THE RAIN MY WINDSHIELD WIPERS STOPPED IN THE MIDDLE OF THE WINDSHIELD AND WOULD NOT MOVE. I WAS LUCKY IT WASN'T AT NIGHT BECAUSE I WAS UNABLE TO SEE THE LANES IN THE ROAD OR OTHER CARS IN FRONT OF ME. I …
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MY VEHICLE IS A 2004 AUDI A4 CABRIOLET WITH A 1.8T ENGINE. WINDSHIELD WIPERS STOP WORKING. WHILE DRIVING ON THE PA TURNPIKE IN THE RAIN MY WINDSHIELD WIPERS STOPPED IN THE MIDDLE OF THE WINDSHIELD AND WOULD NOT MOVE. I WAS LUCKY IT WASN'T AT NIGHT BECAUSE I WAS UNABLE TO SEE THE LANES IN THE ROAD OR OTHER CARS IN FRONT OF ME. I PULLED OVER AND WAITED FOR THE RAIN TO STOP. WHEN I CONTACTED THE AUDI DEALERSHIP TO ASK WHAT THEY THOUGHT IT COULD BE I WAS TOLD THAT IT WAS MOST LIKELY CAUSED BY THE WINDSHIELD WIPER TRANSMISSION BECOMING CORRODED WITH RUST AND BEING UNABLE TO MOVE. THE SERVICE TECHNICIAN SAID THIS WAS A COMMON PROBLEM WITH THESE CARS AND THEY HAD JUST FINISHED REPAIRING ONE THIS WEEK (SOUTHHILLS AUDI, PITTSBURGH PA) I MADE AN APPOINTMENT AT THE DEALERSHIP TO HAVE MY VEHICLE INSPECTED AND 2 WEEKS LATER AFTER THE INSPECTION WAS TOLD THAT THE WIPERS HAVE DEFINITELY STOPPED WORKING BECAUSE OF THE AMOUNT OF RUST ON THE WINDSHIELD WIPER TRANSMISSION. I WAS QUOTED 600 DOLLARS TO FIX AND LEFT TO DRIVE HOME SINCE THEY DIDN'T HAVE THE PARTS. *KB
TL*THE CONTACT OWNS A 2004 AUDI A4 CABRIOLET. WHILE STOPPED THE CONTACT TURNED ON THE WINDSHIELD WIPERS AND THE WIPERS FAILED, PARTIALLY OBSTRUCTING HER VISION. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE CONTACT WAS INFORMED THE WINDSHIELD WIPER MOTOR FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS TAKEN TO AN I…
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TL*THE CONTACT OWNS A 2004 AUDI A4 CABRIOLET. WHILE STOPPED THE CONTACT TURNED ON THE WINDSHIELD WIPERS AND THE WIPERS FAILED, PARTIALLY OBSTRUCTING HER VISION. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE CONTACT WAS INFORMED THE WINDSHIELD WIPER MOTOR FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT REPAIR SHOP WHERE THE WIPER MOTOR WAS REPLACED. THE FAILURE HAS SINCE RECURRED TWICE. AFTER EACH FAILURE THE VEHICLE WAS TAKEN TO AN INDEPENDENT REPAIR SHOP TO BE REPAIRED. THE FAILURE MILEAGE WAS 35,000 AND THE CURRENT MILEAGE WAS 76,834.
2004 AUDI A4 3.0 REPORTING "LEFT DIPPED HEADLIGHT" WITH LEFT HEADLIGHT FLICKERING ON AND OFF. WITH NO KNOWN WAY TO FIX THIS PROBLEM, PER AUDI DEALERSHIP, WHAT HAPPENS WHEN THE RIGHT HEADLIGHT ALSO GOES BAD? NOT ONLY DANGEROUS TO THE DRIVER, BUT ON-COMING TRAFFIC! ONLY A MATTER OF TIME BEFORE SOMEONE GETS KILLED RELATED TO AUD…
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2004 AUDI A4 3.0 REPORTING "LEFT DIPPED HEADLIGHT" WITH LEFT HEADLIGHT FLICKERING ON AND OFF. WITH NO KNOWN WAY TO FIX THIS PROBLEM, PER AUDI DEALERSHIP, WHAT HAPPENS WHEN THE RIGHT HEADLIGHT ALSO GOES BAD? NOT ONLY DANGEROUS TO THE DRIVER, BUT ON-COMING TRAFFIC! ONLY A MATTER OF TIME BEFORE SOMEONE GETS KILLED RELATED TO AUDI HEADLIGHT ISSUE! SOMETHING NEEDS TO BE DONE & IMMEDIATELY. ~THERE WERE NO EVENTS LEADING UP TO IT'S FAILURE & THIS PROBLEM OCCURS CONTINUOUSLY... *TR
WHILE DRIVING ON RTE 495 IN LITTLETON, MA IN THE PASSING LANE, WE WERE CAUGHT IN A THUNDER STORM WITH HEAVY RAIN. I TURNED ON THE WINDSHIELD WIPERS THAT INITIALLY RAN SLOWLY BUT THEN STOPPED COMPLETELY IN THE UP POSITION. HAD TO PULL IT MEDIAN AS VISIBILITY WAS VERY LIMITED. *TR
DRIVERS SIDE WINDOW AND RIGHT REAR PASSENGER WINDOW FAIL TO OPERATE FROM DRIVERS POSITION. TOOK VEHICLE TO THE DEALER AND WAS TOLD THAT THE DRIVERS SIDE WINDOW REGULATOR WAS FAULTY, THEY REPLACED IT AND IT. THEY SAID THE REAR PASSENGER SIDE WINDOW WASN'T WORKING BECAUSE THE SAFETY LOCK WAS ON. PICKED UP VEHICLE AFTER THE SERVICE…
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DRIVERS SIDE WINDOW AND RIGHT REAR PASSENGER WINDOW FAIL TO OPERATE FROM DRIVERS POSITION. TOOK VEHICLE TO THE DEALER AND WAS TOLD THAT THE DRIVERS SIDE WINDOW REGULATOR WAS FAULTY, THEY REPLACED IT AND IT. THEY SAID THE REAR PASSENGER SIDE WINDOW WASN'T WORKING BECAUSE THE SAFETY LOCK WAS ON. PICKED UP VEHICLE AFTER THE SERVICE DEPT. WAS CLOSED AND WAS SHOCKED TO SEE THAT THE REAR WINDOW STILL DOESN'T WORK, NO MATTER WHAT POSITION THE SAFETY LOCKOUT IS IN. DEALER WAS NOTIFIED AND SAID TO RETURN BUT BECAUSE OF LOCATION I WILL HAVE TO WAIT FOR ANOTHER DAY. *TR
WIPERS STOPPED WORKING DURING A RAIN STORM, LEFT THE BLADE UP AND IN MY VIEW. TURNED THE WIPERS OFF THEN BACK TO THE ON POSITION TO SEE IF THAT WOULD RETRACT THEM. THEY MOVED ABOUT AN INCH AND THEN THE WINDOW CRACKED RIGHT ABOVE THE DRIVERS SIDE WIPER ARM. WIPERS WORK FINE AS LONG AS I LEAVE A CRACKED WINDSHIELD IN PLACE. REPLAC…
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WIPERS STOPPED WORKING DURING A RAIN STORM, LEFT THE BLADE UP AND IN MY VIEW. TURNED THE WIPERS OFF THEN BACK TO THE ON POSITION TO SEE IF THAT WOULD RETRACT THEM. THEY MOVED ABOUT AN INCH AND THEN THE WINDOW CRACKED RIGHT ABOVE THE DRIVERS SIDE WIPER ARM. WIPERS WORK FINE AS LONG AS I LEAVE A CRACKED WINDSHIELD IN PLACE. REPLACE IT AND THEY WORK INTERMITTENTLY UNTIL THE WINDOW CRACKS AGAIN. *TR
2004 AUDI A4 QUATRO, FRONT PASSENGER SIDE WINDOW ONLY OPERATES FROM THE PASSENGER SEAT. REAR WINDOWS AS WELL AS DRIVERS SIDE WINDOW OPERATE INTERMITTENTLY FROM THE DRIVERS SIDE CONTROL. *TR
TL*THE CONTACT OWNS A 2004 AUDI A4. THE CONTACT TOOK HER VEHICLE TO THE DEALER FOR ROUTINE MAINTENANCE AND A RECALL REPAIR WAS PERFORMED FOR THE FUEL PUMP. TWO YEARS LATER, WHILE DRIVING LESS THAN 50 MPH, SHE HEARD A LOUD WINDING NOISE FROM THE REAR OF THE VEHICLE. THE DEALER STATED THAT THE FUEL PUMP AND REAR WINDOW REGULATO…
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TL*THE CONTACT OWNS A 2004 AUDI A4. THE CONTACT TOOK HER VEHICLE TO THE DEALER FOR ROUTINE MAINTENANCE AND A RECALL REPAIR WAS PERFORMED FOR THE FUEL PUMP. TWO YEARS LATER, WHILE DRIVING LESS THAN 50 MPH, SHE HEARD A LOUD WINDING NOISE FROM THE REAR OF THE VEHICLE. THE DEALER STATED THAT THE FUEL PUMP AND REAR WINDOW REGULATOR CABLE FAILED. THE REPAIRS WERE MADE AT THE COST OF $1,458.33. LATER, THROUGH ONLINE RESEARCH, THE MANUFACTURER STATED THAT THE RECALL REPAIRS WERE PERFORMED IN 2006 AND THEY WOULD NOT COVER A SECOND REPAIR. THE CONTACT STATED THAT SHE WAS NEVER INFORMED OF THE REPAIR FOR NHTSA CAMPAIGN ID NUMBER 06V017000 (FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP). THE FAILURE AND CURRENT MILEAGES WERE LESS THAN 52,000.
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
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.