2004 Audi A6 problems
The Audi A6 is an executive car made by the German company Audi since 1994. Now in its fifth generation, the successor to the Audi 100 is manufactured in Neckarsulm, Germany, and is available in saloon and estate configurations, the latter marketed by Audi as the Avant. Audi's internal numbering treats the A6 as a continuation of the Audi 100 lineage, with the initial A6 designated as a member of the C4-series, followed by the C5, C6, C7, and the C8. The related Audi A7 is essentially a Sportback (liftback) version of the C7-series and C8-series A6 but is marketed under its own separate identity and model designation.
All generations of the A6 have offered either front-wheel-drive or Torsen-based four-wheel-drive, marketed by Audi as their quattro system. The A6 has also been used as the basis for the company's Allroad models since 1999.
Both petrol and diesel versions of the A6 are offered. The wide range of engines available have power outputs ranging from 150 to 333 PS (110 to 245 kW). These are inline four-cylinder turbocharged engines and more powerful 3-litre units in a V6 configuration with a mechanical compressor.
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Common 2004 Audi A6 problems
The Audi A6 C5, produced from 1997 to 2004, is known for its reliable engines, but like any vehicle, it has its share of issues, particularly when it comes to high mileage and aging. Here are some common problems reported by owners of this car:
- Chain drive resource: The chain drive resource of the Audi A6 C5 is generally reliable, lasting at least 180,000 kilometers. However, some owners have reported that the chain had to be changed even after 120,000 kilometers. After 200,000 kilometers, the chain tensioner may begin to fail, causing a knocking noise at idle that subsides with an increase in speed over 1500 rpm.
- Timing belt drive: The timing belt drive should be replaced every 60,000 kilometers, along with the pump. Failure to do so can result in significant problems.
- Electric coolant temperature sensor: This sensor can cause many problems, including a buggy door that doesn't close completely and windows that don't return down. Silicone grease may help if the cause is banal souring electronics, but a complete replacement of the dashboard is often necessary.
- ABS ECU and airbags malfunction: The ABS ECU and airbags can malfunction due to oxidation of the contacts and tired soldering of the unit. The unfortunate location of the comfort unit can lead to loss of control of windows and light in the cabin, requiring replacement of the locks.
- Door switches: The door switches built into the locks are known to be buggy or fail completely, requiring replacement.
- Generator and starter: After 300,000 to 400,000 kilometers, the generator and starter may require repair or replacement.
- Heater radiator: After 350,000 to 450,000 kilometers, the heater radiator may lose its effectiveness due to clogging.
- Turbocharged engines: The 1.8 and 2.7 liter versions of the Audi A6 C5, which are equipped with turbochargers, require extra attention. The plastic base of the turbine over pressure valve can burst after about 150,000 kilometers, causing significant problems.
- Air-con: The air-con is surprisingly susceptible to faults, with roughly a quarter of cars needing attention. Check that it blows icy-cold air and that there are no damp or musty smells.
- Diesel engines: The diesel engines can get through oil between services, so it's vital to check them regularly. Inspect the oil level and see when the car was last serviced.
- Gremlins in the electrical system: Gremlins in the electrical system strike in almost 40% of cars. The engine's ECU can also cause problems, so look for warning lights on the dashboard or a sudden drop in performance.
- Rear wheels rubbing on wheelarches: Some owners have reported that the rear wheels rub on wheelarches when the car is loaded, especially in S line cars.
- Expensive tyres: Tyres can be expensive to replace, too.
It's important to note that the Audi A6 has a good reputation for reliability, and many of these issues can be avoided with proper maintenance and care. However, potential buyers should be aware of these common problems and consider them when purchasing a used Audi A6 C5.
What is the most common problem with Audi A6?
The Audi A6 saloon has been blighted by a range of electrical issues: 44% had a fault, two-thirds concerning engine and non-engine electrical systems or the sat-nav/ infotainment. Although 83% could still be driven, 46% took more than a week to put right.
How long do Audi A6 engines last?
200,000 miles
Audis can typically go up to 200,000 miles or 20 years without major repairs when they're properly maintained. They're fairly reliable cars, and Consumer Reports ranks them within the top 10 new car brands when it comes to reliability.
Is the A6 worth buying?
With its subdued styling and straightforward but refined interior, the 2024 Audi A6 is a classic German luxury sedan. There's nothing garish or overtly flashy about its design, and its comfort-first demeanor means it's perfect for long-haul autobahn runs, and a great choice for our 2024 Editors' Choice list.
Is an A6 a good used car?
With plenty of onboard gadgetry, a range of efficient, whisper-quiet engines to choose from and trademark Audi styling, it's no wonder the A6 has become a highly desirable used car.
What is the most common problem with Audi A6?
The Audi A6 saloon has been blighted by a range of electrical issues: 44% had a fault, two-thirds concerning engine and non-engine electrical systems or the sat-nav/ infotainment. Although 83% could still be driven, 46% took more than a week to put right.
How long do Audi A6 engines last?
200,000 miles
Audis can typically go up to 200,000 miles or 20 years without major repairs when they're properly maintained. They're fairly reliable cars, and Consumer Reports ranks them within the top 10 new car brands when it comes to reliability.
Is an A6 a good used car?
With plenty of onboard gadgetry, a range of efficient, whisper-quiet engines to choose from and trademark Audi styling, it's no wonder the A6 has become a highly desirable used car.
Is the A6 worth buying?
With its subdued styling and straightforward but refined interior, the 2024 Audi A6 is a classic German luxury sedan. There's nothing garish or overtly flashy about its design, and its comfort-first demeanor means it's perfect for long-haul autobahn runs, and a great choice for our 2024 Editors' Choice list.
2004 Audi A6 car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Audi A6 problems, we found that the most common problems with these 2023 model year vehicles are:
- Fuel system problems
- Gasoline problems
- Service brakes problems
- Electrical system problems
- Tires problems
The graph below shows statistics for all 2004 Audi A6 vehicle components and the number of complaints received.
Latest 25 complaints 2004 Audi A6
The NHTSA has received 35 complaints about various vehicle components related to the 2004 Audi A6. Below are the 25 most recent complaints reported for 2004 Audi A6 vehicles.
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE PROBLEM
- Date Of Incident: 2023-10-31
- VIN: WAULT64B34N
- Components: SERVICE BRAKES,FORWARD COLLISION AVOIDANCE
- Summary: - ABS Module has intermittent failures, available for inspection - Anti-lock brakes will not work - Yes, the problem reoccurs and the module loses power and then errors out - Others - VCDS - ABS lights come on and BRAKE light stays illuminated
FUEL/PROPULSION SYSTEM PROBLEM
- Date Of Incident: 2018-11-18
- VIN: WAULT64B94N
- Components: FUEL/PROPULSION SYSTEM
- Summary: RE: SAFETY RECALL 20L8/JY; 08V157000: FUEL TANK ROLLOVER VALVE MODIFICATION; VIN: (XX); 2004 AUDI A6 3.0L QUATTRO AT5 ATTACHED DOCS: 1. 20L8/JY RECALL NOTICE. 2. 7.14.2008 & 11.18.18 AUDI N. SCOTTSDALE, AZ DEALER INVOICES 3. AUDI A6 GAS TANK DIAGRAM. AUDI CORP EMAIL RESPONSE: "AT THIS TIME WE HAVE IDENTIFIED THAT THE 20L8 REPAIR WAS SPECIFIC TO THE DRIVER'S SIDE OF THE VEHICLE. THE DEALERSHIP IS INDICATING THIS CURRENT RECOMMENDED REPAIR IS SPECIFIC TO THE PASSENGER SIDE OF THE VEHICLE." "SINCE WE ARE SHOWING THE 20L8 COMPLETED IN JULY OF 2008 AND THE ORIGINAL 20L8 REPAIR IS SPECIFIC TO DRIVER'S SIDE ROLLOVER NIPPLE VALVES, ACCORDING TO THE DEALERSHIP THIS CURRENT REPAIR IS UNRELATED TO THE RECALL." "CURRENTLY PER THE NHTSA WEBSITE, THE 20L8 IS NOT SHOWING AS AN OPEN RECALL, SO I WOULD BE UNABLE TO SPEAK TO HOW THEY WOULD REACT TO INFORMATION REGARDING A CLOSED RECALL." 'WE HAVE NO EVIDENCE SUPPORTING AN INCORRECT REPAIR BEING PERFORMED IN JULY OF 2008, SO AT THIS TIME WE WOULD BE UNABLE TO PROVIDE ASSISTANCE TOWARDS THIS REPAIR." CURRENT EMISSIONS CHECK ENGINE LIGHT (NOV 18, 2018) IS DIAGNOSED BY THE AUDI DEALER AS A GAS TANK LEAK. ALSO, THERE IS A STRONG ODOR COMING FROM GAS TANK. DEALER QUOTED TO REPLACE THE ENTIRE TANK (SEE ATTACHED #2). THERE ARE SEVERAL ROLLOVER VALVES ON EACH SIDE OF THE GAS TANK ON THE TOP SIDE (SEE ATTACHED #3 GAS TANK DIAGRAM). RECALL (SEE ATTACHED #1) DOES NOT ADDRESS "DRIVERS SIDE OR PASSENGER SIDE" OF GAS TANK. DEALER CLAIMED THAT BACK IN 2008 THAT THEY DID NOT EVEN LOWER THE GAS TANK FOR THE REPAIR. IN SUMMARY: MY VEHICLE CURRENTLY HAS A GAS TANK LEAK ON TOP OF THE GAS TANK COMING FROM THE ONE OR MORE ROLLOVER VALVE NIPPLES ON TOP OF THE GAS TANK. THE SAFETY RECALL ADDRESSES REPAIRING AND REINFORCING THESE LEAKING ROLLOVER VALVE NIPPLES SO A REPAIR REQUEST SHOULD BE COVERED BY THE RECALL. PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2017-07-25
- VIN: WAULD64B34N
- Components: ELECTRICAL SYSTEM
- Summary: AFTERMARKET RADIO: PIONEER ELECTRONICS AVH-4100 NEX BACKUP CAMERA FAILS AND DISTRACTS DRIVER SIGNIFICANTLY. I HAVE ATTACHED A SCAN OF THE COMPLAINT TO PIONEER ELECTRONICS. THE RADIO LIKELY HAS SOFTWARE DEFECT THAT CAUSES VERY DISTRACTING FAILURES WHEN OPERATING THE BACK-UP CAMERA. PIONEER ADVERTISES THAT THIS BACKUP CAMERA WORKS AS ADVERTISED - IT IS ACTUALLY NOW A DISTRACTION AND HAZARD. AS WELL, OPERATING GOOGLE "ANDROID AUTO" CAUSES MORE SIGNIFICANT DRIVING DISTRACTIONS WHEN USING THE BACKUP CAMERA FUNCTION OF THE AVH-4100. COMPLAINTS TO PIONEER ELECTRONICS HAVE BEEN FRUITLESS. THEY SEEM TO BE ARROGANT AND CLAIM: "ALL OF OUR PRODUCTS ARE THOROUGHLY TESTED." I WOULD LIKE PIONEER ELECTRONICS TO FIX THE SOFTWARE ISSUE AND CREATE A NEW RELEASE THAT ALLOWS THE BACKUP CAMERA TO WORK WITHOUT A DISTRACTION AND SAFTY-HAZARD.
FUEL/PROPULSION SYSTEM PROBLEM
- Date Of Incident: 2016-01-07
- Components: FUEL/PROPULSION SYSTEM
- Summary: WHEN ENGINE IS COLD, USUALLY BELOW 0 DEGREES FUEL SPRAYS FROM INJECTORS. THIS COULD IGNITE ON EXHAUST MANIFOLDS CAUSING CAR FIRE.
ENGINE PROBLEM
- Date Of Incident: 2015-06-07
- Fire: 1
- VIN: WAUCD64B84N
- Components: ENGINE
- Summary: TL* THE CONTACT OWNED A 2004 AUDI A6. WHILE DRIVING AT 20 MPH, SMOKE APPEARED FROM THE ENGINE COMPARTMENT AND THE VEHICLE CAUGHT FIRE. A POLICE REPORT WAS FILED AND THERE WERE NO INJURIES REPORTED. THE VEHICLE WAS DESTROYED. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 06V198000 (ELECTRICAL SYSTEM). THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 103,000.
ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES PROBLEM
- Date Of Incident: 2015-01-01
- VIN: WAULD64B14N
- Components: ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES
- Summary: WITH THE ELEC STABILITY CONTROL BEING INTERMITTENT THIS IS BEING CAUSED BY THE ABS MODULE GOING BAD/INTERMITTENT THE BRAKE PEDAL PRESSURE CHANGES. I HAVE EXPERIENCED THIS WITH MY 2002 RAM 1500 (4X4) AS WELL. THIS COULD BE A PROBLEM IN ALL CARS AND TRUCKS. THE COST THE FIX FOR AN AUDI IS AROUND $2500.00 AND MY RAM WAS $1300.00. *TR
FUEL/PROPULSION SYSTEM PROBLEM
- Date Of Incident: 2014-10-30
- VIN: WAUCD64B14N
- Components: FUEL/PROPULSION SYSTEM
- Summary: TL*THE CONTACT OWNS A 2004 AUDI A6. THE CONTACT STATED THAT WHILE STARTING THE VEHICLE, A STRONG ODOR OF GASOLINE EMITTED INSIDE AND AROUND THE VEHICLE. THE CONTACT MENTIONED THAT THE CHECK ENGINE LIGHT ILLUMINATED. THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO THE DEALER, WHERE IT WAS DIAGNOSED THAT THE FUEL TANK COLLAPSE AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 146,569.
VEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC) PROBLEM
- Date Of Incident: 2014-10-21
- VIN: WAUJT64B14N
- Components: VEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC)
- Summary: THE FIRST THROTTLE VALVE MALFUNCTION HAPPENED ON JULY 2013. COST TO REPAIR 1557.95 PART COST 878.00 MILEAGE 66784 THE SECOND MALFUNCTION HAPPENED ON OCT. 14, 2014 TO REPAIR 1200.00 PART COST 913.00, MILEAGE 69202 WHAT HAPPENS HERE IS THE ENGINE SHUTS DOWN. THERE COULD HAVE BEEN E MAJOR ACCIDENT IF SHE WAS REAR ENDED. I CALLED AUDI TO TELL THEM THE PART WAS DEFECTIVE, BUT THEY WOULD NOT LISTEN. THAT IS WHY I THINK THERE SHOULD BE A RECALL, TO SEND THEM A MESSAGE. *TR
FUEL SYSTEM, GASOLINE,EQUIPMENT PROBLEM
- Date Of Incident: 2013-12-01
- VIN: WAULD64B34N
- Components: FUEL SYSTEM, GASOLINE,EQUIPMENT
- Summary: SIGNIFICANT GAS LEAK CAUSED BY BROKEN GAS "IN TANK SENDING UNITS" HOUSING AND SEAL. GAS WILL LEAK AND FILL THE INSIDE OF THE CAR WITH FUMS AS WELL AS UNDER THE CAR. REPLACEMENT REQUIRED BUYING A REVISED DESIGN SENDING UNITS THAT INCLUDE ALL THREE SENDING UNITS. THE PRICE IS HIGH ~$500 AND THE CONSEQUENCES VERY DANGEROUS. MY CAR IS: 2004 AUDI A6 [XXX] 2004 A6Q 2.7T INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2012-04-30
- Fire: 1
- VIN: WAULT64B24N
- Components: ELECTRICAL SYSTEM
- Summary: TL* THE CONTACT OWNS A 2004 AUDI A6. THE CONTACT STATED THAT WHILE DRIVING 65 MPH, THAT THERE WAS A FAILURE IN THE ELECTRIC HARNESS UNDER THE PASSENGER SEAT. THE CONTACT STATED THAT HE NOTICED A BURNING ODOR AND THEN THE POWER FAILED TO MOVE THE SEAT. UPON FURTHER REVIEW, THE CONTACT DISCOVERED THAT THE CARPET UNDER THE SEAT WAS SINGED AND HAD MELTED SOME PLASTIC UNDER THE SEAT. THE VEHICLE WAS TAKEN TO THE CONTACT'S PERSONAL MECHANIC WHERE HE WAS INFORMED THAT THE VEHICLE POSED A SAFETY HAZARD AND SHOULD NOT BE DRIVEN. THE CONTACT REFERENCED NHTSA CAMPAIGN ID NUMBER: 04V133000 (ELECTRICAL SYSTEM) AND CONTACTED THE DEALER AND THE MANUFACTURER TO INQUIRE OF THE RECALL CAMPAIGN. THE DEALER AND THE MANUFACTURER BOTH ADVISED THE CONTACT THAT THE VEHICLE WAS NOT INCLUDED IN THE RECALL CAMPAIGN. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND THE CURRENT MILEAGES WERE 94,648 UPDATED 6/1/12 *CN THE CAUSE OF THE FIRE WAS THE SHORTING OF THE SEAT HARNESS WIRING UNDER THE PASSENGER CARPETING FROM MOVEMENT AND THERE WAS A BEND/ KINK IN THE HARNESS WHEN ASSEMBLED AND THERE WAS SUB DAMAGE TO ADJACENT WIRE HARNESS. UPDATED 06/22/12
ENGINE AND ENGINE COOLING PROBLEM
- Date Of Incident: 2011-12-02
- VIN: WAUVT54B64N
- Components: ENGINE AND ENGINE COOLING
- Summary: REPLACED CYLINDER BANK 1 RIGHT SIDE! *TR
EXTERIOR LIGHTING PROBLEM
- Date Of Incident: 2011-09-01
- VIN: WAULD64B34N
- Components: EXTERIOR LIGHTING
- Summary: PASSENGER SIDE MECHANICAL VERTICAL ADJUSTER DOES NOT FUNCTION IS LAMP POINT TO ABOUT 10 FEET TO THE FRONT OF THE VEHICLE. DIVER SIDE ADJUSTER APPEAR TO FUNCTION OK. ONLINE BLOGS CONFER MULTIPLE PROBLEMS WITH AUDI HEADLIGHT ADJUSTERS AS COMMON, RECURRENT, AND COSTLY TO FIX. DRIVING WITH POORLY AIMED LIGHTS IS OBVIOUSLY SAFETY ISSUE. *TR
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 2011-03-19
- Components: FUEL SYSTEM, GASOLINE
- Summary: TL*THE CONTACT OWNS A 2004 AUDI A6. THE CONTACT STATED THAT WHEN REFUELING THE VEHICLE OVER THE THREE QUARTER CAPACITY LEVEL, A SUBSTANTIAL AMOUNT OF FUEL WOULD LEAK UNDERNEATH THE VEHICLE NEAR THE EXHAUST PIPE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR DIAGNOSTIC TESTING AND STATED THAT THE FUEL TANK ROLLOVER VALVE WAS LEAKING. THE VEHICLE WAS NOT REPAIRED. THE CONTACT EXPRESSED SIGNIFICANT CONCERN OF THE SAFETY RISK INVOLVED. THE FAILURE MILEAGE WAS 90,000. THE VIN WAS UNAVAILABLE.
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 2011-02-20
- VIN: WAULT64B74N
- Components: FUEL SYSTEM, GASOLINE
- Summary: 2004 AUDI A6 SEDAN, 3.0 ENGINE DEVELOPED A SUDDEN LOSS OF POWER JUST BEFORE VEHICLE STALLED WHILE DRIVING ON HIGHWAY AT 65 MPH. VEHICLE WAS TOWED TO REPAIR SHOP WHERE IT WAS DETERMINED THAT THE FUEL PUMP HAD FAILED. *TR
SERVICE BRAKES, HYDRAULIC,ENGINE AND ENGINE COOLING,AIR BAGS PROBLEM
- Date Of Incident: 2010-08-12
- Number Of Injuries: 1
- Crash: 1
- VIN: WAUVT64B54N
- Components: SERVICE BRAKES, HYDRAULIC,ENGINE AND ENGINE COOLING,AIR BAGS
- Summary: TL*THE CONTACT OWNS A 2004 AUDI A6 AVANT. THE CONTACT STATED THAT THE CHECK ENGINE LIGHT HAD BEEN ILLUMINATING INTERMITTENTLY. THE DEALER STATED THAT THE CONTACT SHOULD NOT WORRY ABOUT THE LIGHT. WHILE DRIVING 65 MPH, THE CONTACT SWERVED TO MISS A DEER AND LOST CONTROL OF THE VEHICLE. IT BEGAN TO ROCK BACK AND FORTH AND THE BRAKES WERE INOPERATIVE. THE CONTACT HIT GUARDRAILS ON BOTH THE DRIVER AND PASSENGER SIDES. THE VEHICLE THEN TIPPED ON ITS SIDE AND WENT INTO A RAVINE. THE ENGINE WAS STILL RUNNING AND THE WHEELS WERE STILL SPINNING. THE AIR BAGS DID NOT DEPLOY. THE CONTACT SUFFERED INJURIES TO THE COLLAR BONE, RIBS, A CONCUSSION, AND LOST TEETH. THE DEALER STATED THAT THERE COULD HAVE BEEN A PROBLEM WITH THE COMPUTER. THE VEHICLE WAS DESTROYED. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 190,000. UPDATED 04/08/11
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 2011-01-11
- VIN: WAUVT64B14N
- Components: FUEL SYSTEM, GASOLINE
- Summary: CAR'S ENGINE STOPPED WHILE AT A RED LIGHT. WOULD NOT START AFTER FAILURE. ULTIMATELY, CAUSE WAS DETERMINED TO BE A FAILED FUEL PUMP. I SAW THAT THERE WAS A RECALL ON THE FUEL PUMP FOR 2003 A6 MODELS INCLUDING 3L VEHICLES, BUT NOT FOR 2004 MODELS.]
ENGINE AND ENGINE COOLING PROBLEM
- Date Of Incident: 2010-09-18
- VIN: WAUVT64B24N
- Components: ENGINE AND ENGINE COOLING
- Summary: I AM WRITING ABOUT MY 2004 A6 AVANT, WHICH HAS 78,000 MILES. AT A RECENT OIL SERVICE AT AN INDEPENDENT GARAGE, IT WAS SUGGESTED THAT THERE WAS A PROBLEM WITH THE CATALYTIC CONVERTERS. EXHAUST WAS LEAKING FROM BOTH SIDES, I WAS TOLD. I TOOK THE CAR TO MY AUDI DEALER, WHERE THEY CHECKED THE EXHAUST SYSTEM. THE MECHANIC WHO EXAMINED THE CAR CONCURRED THAT THE CATALYTIC CONVERTERS NEEDED TO BE REPLACED. UNDER A FEDERALLY MANDATED WARRANTY, THE CATALYTIC CONVERTERS ARE COVERED FOR EIGHT YEARS OR 80,000 MILES. YET THE DEALER HAS DECLINED TO COVER REPLACEMENT BECAUSE THE "CHECK ENGINE" LIGHT WAS NOT ON. I WAS GIVEN A REPAIR ESTIMATE OF $2,400. *TR
SEATS PROBLEM
- Date Of Incident: 2009-12-05
- VIN: WAULT64B84N
- Components: SEATS
- Summary: I FILED A COMPLAINT ABOUT MY 2004 AUDI A6 IN DEC OF 2009. I REPORTED THAT MY BACK PASSENGER SEAT HAD ALMOST CAUGHT FIRE, AND WAS BURNT. BOTH MY SEAT CUSHION AND UPPER BACK CUSHION WERE BURNED. AT THE TIME I HAD NOT CONTACTED AUDI, YET FILED A COMPLAINT, BECAUSE I FELT AND STILL DO THAT THIS WAS A MAJOR SAFETY HAZARD. SINCE MY LAST COMPLAINT I DID CONTACT BOTH MY DEALERSHIP (ROTH AUDI IN ERIE, PA) AND AUDI HEADQUARTERS AKA: AUDI CUSTOMER RELATIONS. THEY WERE VERY WILLING TO WORK WITH ME, SEEMED EXTREMELY CONCERNED AND SAID NOT TO WORRY BECAUSE I STILL HAD A WARRANTY LEFT ON MY CAR. WELL AFTER THE CAR RETURNED HOME FROM THE DEALERSHIP THEY ONLY FIXED HALF OF THE PROBLEM! THE DEALERSHIP SAID AUDI TOLD THEM TO REPLACE THE BOTTOM CUSHION ONLY. THE DEALERSHIP PAINTED OVER THE TOP CUSHION AND I FOUND THIS OUT AFTER I BEGAN WIPING MY SEAT, BECAUSE I THOUGHT I HAD SMUDGE MARKS ON IT... NOPE PAINT WAS COMING OFF AND COULD SEE THE BURNED SEAT UNDERNEATH THE PAINT. I CALLED AUDI BACK, AND THEY HAD ME TAKE IT BACK TO THE DEALER TO BE ASSESSED AGAIN. AFTER 6 DAYS OR SO THE PERSON I HAD BEEN DEALING WITH FROM AUDI CUSTOMER RELATIONS CALLED TO SAY WE CANT REPLACE THAT PART OF THE SEAT BECAUSE THEY FOUND NO DEFECT IN THE HEATING ELEMENT. SO IN ESSENCE, THEY ONLY DID HALF OF THEIR JOB SINCE THE SEAT BURNED FROM ONE INCIDENT! I HAVE SINCE CONTACTED THE FTC, AND THE ATTORNEY GENERAL RE: THIS ISSUE. I WILL NOT STOP THERE IF I DO NOT GET THIS RESOLVED. THE ENTIRE SEAT SHOULD HAVE BEEN COVERED UNDER THE WARRANTY. CONSIDERING VW RECALLED MANY OF THEIR CARS FOR THE SAME REASON, AND AUDI IS OWNED BY VW I WOULD THINK THEY WOULD BE A BIT MORE CONCERNED ABOUT THEIR CUSTOMERS. I HAVE VIEWED MANY FORUMS, AND FOUND THERE WERE A LOT OF COMPLAINTS SIMILAR TO MINE WITH REGARDS TO THE HEATED SEATING EITHER CATCHING ON FIRE OF BURNING THE SEAT. I'D LIKE TO KNOW IF NHTSA IS HONESTLY LOOKING INTO THIS? THANK YOU. *TR
VEHICLE SPEED CONTROL PROBLEM
- Date Of Incident: 2009-10-02
- VIN: WAULT64B24N
- Components: VEHICLE SPEED CONTROL
- Summary: TL* THE CONTACT OWNS A 2004 AUDI A6. THE CONTACT STATED WHEN THE VEHICLE IS PARKED THE THROTTLE FLUCTUATES. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND THE DEALER CHANGE THE MASS AIR FLOW METER. THAT DID NOT REMEDY THE THROTTLE FLUCTUATION SO THE DEALER REMOVED THE MASS AIR FLOW METER. THE DEALER THEN RESET THE COMPUTER FOR THE THROTTLE BODY AND THAT DID NOT REMEDY THE ISSUE AS WELL. THE DEALER DOES NOT KNOW WHAT IS CAUSING THE THROTTLE TO FLUCTUATE. THE CONTACT STATED THE THROTTLE FLUCTUATION IS CAUSING THE VEHICLE TO LUNGE FORWARD WHEN THE VEHICLE IS IDLE. THE FAILURE MILEAGE WAS 94,500.
FUEL SYSTEM, OTHER PROBLEM
- Date Of Incident: 2010-01-20
- VIN: WAUVT64B14N
- Components: FUEL SYSTEM, OTHER
- Summary: SUDDEN LOSS OF ENGINE POWER WHILE DRIVING A 2004 AUDI A6 AVANT ON HIGHWAY 280 SOUTH IN NORTHERN CALIFORNIA. THE CAR SUDDENLY LOST ALL ENGINE POWER AND STALLED ON THE HIGHWAY. THE CAR STOPPED BEFORE REACHING THE HIGHWAY CURB. THE HIGHWAY POLICE WHO CAME BY SEEING THE FLASHERS ON THE CAR ASSISTED IS PUSHING THE CAR SAFELY INTO THE HIGHWAY CURB AREA. THE CAR HAD TO BE TOWED TO THE DEALER FOR DIAGNOSTICS AND REPAIRS. THE DEALER IDENTIFIED THAT THE FUEL PUMP HAD FAILED. *TR
AIR BAGS PROBLEM
- Date Of Incident: 2010-01-07
- VIN: WAUVT64B44N
- Components: AIR BAGS
- Summary: MY AUDI DEALER INFORMED ME OF A FAILURE IN THE PASSENGER SIDE AIRBAG AND IT HAD TO BE REPLACED AT A COST OF $931.99, I HAVE OWNED THIS CAR SINCE NEW AND IT IS ACCIDENT FEE. THIS IS FAILURE OF A MAJOR SAFETY ITEM AND SHOULD BE LOOKED AT. *TR
SEATS PROBLEM
- Date Of Incident: 2009-12-05
- VIN: WAULT64B84N
- Components: SEATS
- Summary: I HAVE A 2004 AUDI A6 QUATTRO 3.0 L. THIS WEEKEND MY GROWN SON WAS SITTING IN THE BACK SEAT AND HAD HIS SUIT IN A GARMENT BAG NEXT TO HIM. THE HEATED SEATS WERE BOTH ON IN THE BACK. THEY SMELLED SOMETHING BURNING AND IT TURNED OUT IT WAS THE HEATED SEAT. IT BURNED THE GARMENT BAG RIGHT INTO HIS SUIT AND RUINED THE SUIT JACKET AS WELL. MY SEAT LOOKS LIKE IT WAS READY TO CATCH ON FIRE. I HAVE 44,000 MILES ON THIS CAR. I HAVE NOT CONTACTED AUDI YET, AND MY FEAR IS THAT WHEN I DO THEY WILL MAKE ME PAY FOR THIS. I FEEL THIS IS A MAJOR SAFETY HAZARD AND NOW I HAVE TO WORRY ABOUT THE REST OF THE SEATS AS WELL. I CAN'T IMAGINE WHAT WOULD HAVE HAPPENED IF A PERSON WOULD HAVE BEEN SITTING THERE! *TR
AIR BAGS PROBLEM
- Date Of Incident: 2009-11-30
- VIN: WAUCD64BX4N
- Components: AIR BAGS
- Summary: PASSENGER AIR BAG FAILURE 2004 AUDI A-6. CAR HAS NOT BEEN IN AN ACCIDENT AND AIR BAG HAS NEVER BEEN ACTIVATED.DEALER SAID IT NEEDS COMPLETE REPLACEMENT. *TR
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 2009-10-07
- VIN: WAUML64B14N
- Components: FUEL SYSTEM, GASOLINE
- Summary: TL* THE CONTACT OWNS A 2004 AUDI A6. WHEN DRIVING HE SMELLED A STRONG ODOR OF GASOLINE INSIDE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALERSHIP WHERE THE CONTACT WAS INFORMED THAT THE ROLL OVER VALVE WAS MALFUNCTIONING, AND THAT THE GAS TANK NEEDED TO BE REPLACED. THERE WERE NO PRIOR WARNINGS. THE CURRENT AND FAILURE MILEAGES WERE 119898. UPDATED 11/18/09. *LJ THE CONSUMER STATED THE SMELL PARTICULARLY STRONG AFTER FILLING UP. THE CONSUMER WAS TOLD HIS VINE WAS NOT INCLUDED IN THE RECALL. UPDATED 11/19/09 THE CONSUMER STATED HE BEGAN TO SMELL GASOLINE INSIDE THE VEHICLE, PARTICULARLY AFTER FILLING HOME. HE TOOK THE VEHICLE TO A SERVICE CENTER AND WHEN THE MECHANIC LIFTED VEHICLE TO INSPECT IT, HE FOUND FUEL LEAKING FROM THE TOP OF THE FUEL TANK ON THE LEFT SIDE, WITHIN INCHES OF THE EXHAUST PIPE. UPDATED 06/08/10.*JB
STEERING,SUSPENSION PROBLEM
- Date Of Incident: 2009-09-01
- VIN: WAUCD64B94N
- Components: STEERING,SUSPENSION
- Summary: I HAVE A 2004 AUDI A6 2.7T S-LINE SEDAN WITH 56,000 MILES ON IT. FOR THE PAST SEVERAL MONTHS IT HAS HAD A SEVERE SHUDDERING IN THE STEERING COLUMN AS I ACCELERATE MID-THROTTLE, AS WHEN I ACCELERATE ONTO AN ON-RAMP. I HAVE TRIED TO HAVE MY LOCAL AUDI DEALER ADDRESS THIS (IT IS A CERTIFIED VEHICLE) BUT THEY SO FAR HAVE NOT COME ACROSS WITH RESOLUTION. I HAVE ALSO CONTACTED THE AUDI OF AMERICA CUSTOMER SUPPORT FOLKS SEVERAL TIMES AND THEY SAY THAT THERE IS NOT A PROBLEM LIKE THIS WITH THIS CAR, BUT THEY ALSO SAY THAT IF I USE A SPECIFIC MAKE OF MICHELIN TIRE, IT MIGHT ALLEVIATE THE PROBLEM! I'M CONCERNED ABOUT THE SAFETY OF THIS CAR-IT DOESN'T ALWAYS DO THIS, BUT WHEN IT DOES THE STEERING WHEEL "SHUDDERS", LIKE IT VIBRATES/WOBBLES AND THE WHOLE CAR VIBRATES. IT STARTED AT ABOUT 40,000 MILES AND SEEMS TO HAVE WORSENED OVER TIME. IS THERE A COMMON PROBLEM WITH THIS VEHICLE? PLEASE HELP IF YOU CAN! *TR
2004 Audi A6 recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 4 recalls for different components of the 2004 Audi A6.
- Manufacturer: VOLKSWAGEN OF AMERICA, INC
- Components: FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY
- Summary: VOLKSWAGEN IS RECALLING CERTAIN MODEL YEAR 2001-2004 AUDI A6, MODEL YEAR 2002-2003 S6 AND MODEL YEAR 2003 RS6 VEHICLES EQUIPPED WITH 4.2L ENGINES AND MANUFACTURED FROM JUNE 19, 2001, THROUGH JUNE 8, 2004. THE AGING OF THE PLASTIC MATERIAL IN THE FUEL TANK ROLLOVER VALVE COMBINED WITH BENDING STRESS FROM THE ALUMINUM VENTILATION LINE TO THE ROLLOVER VALVE NIPPLE MAY LEAD TO CRACKING OF THE NIPPLE. IF THIS HAPPENS, A FUEL LEAK MAY RESULT.
- Consequence: A FUEL LEAK IN THE PRESENCE OF AN IGNITION SOURCE COULD LEAD TO A VEHICLE FIRE.
- Remedy: DEALERS WILL REINFORCE THE NIPPLE ON THE ROLLOVER VALVE TO PREVENT LEAKAGE OR REPAIR THE CRACKING AT THE NIPPLE. THE RECALL IS EXPECTED TO BEGIN DURING JUNE 2011. OWNERS MAY CONTACT AUDI AT 1-800-822-2834.
- Manufacturer: VOLKSWAGEN OF AMERICA, INC
- Components: FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
- Summary: VOLKSWAGEN IS RECALLING 68,240 MY 2001-2004 AUDI A6 QUATTRO VEHICLES EQUIPPED WITH 2.7L, 2.8L, OR 3.0L ENGINES AND MY 2001-2005 ALLROAD QUATTRO VEHICLES EQUIPPED WITH 2.7L OR 4.2L ENGINES. THE AGING OF THE PLASTIC MATERIAL IN THE FUEL TANK ROLLOVER VALVE COMBINED WITH BENDING STRESS FROM THE ALUMINUM VENTILATION LINE TO THE ROLLOVER VALVE NIPPLE MAY LEAD TO CRACKING OF THE NIPPLE. IF THIS HAPPENS, A FUEL LEAK MAY RESULT.
- Consequence: A FUEL LEAK IN THE PRESENCE OF AN IGNITION SOURCE COULD LEAD TO A VEHICLE FIRE.
- Remedy: DEALERS WILL REINFORCE THE NIPPLE ON THE ROLLOVER VALVE TO PREVENT LEAKAGE OR REPAIR THE CRACKING AT THE NIPPLE. THE RECALL BEGAN ON JUNE 27, 2008. OWNERS MAY CONTACT AUDI AT 1-800-822-2834.
- Manufacturer: VOLKSWAGEN OF AMERICA, INC
- Components: ELECTRICAL SYSTEM
- Summary: ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH HALOGEN LOW BEAM HEADLIGHTS, CERTAIN CONNECTOR PINS IN THE HEADLIGHT SWITCH CONNECTOR COME INTO CONTACT WITH EACH OTHER CAUSING A SHORT CIRCUIT. NOTE: VEHICLES WITH XENON LOW BEAM HEADLIGHTS ARE NOT AFFECTED BECAUSE THE CIRCUIT IN THESE VEHICLES CONTAINS A FUSE, WHICH PRECLUDES EXCESSIVE CURRENT FLOW IN THE CASE OF A SHORT CIRCUIT. AUDI S6 AND S6 AVANT VEHICLES ARE ALL EQUIPPED WITH XENON LOW BEAM HEADLIGHTS AND, THEREFORE, ARE NOT LONGER AFFECTED BY THIS RECALL.
- Consequence: THIS CONDITION COULD LEAD TO OVERHEATING OR FIRE.
- Remedy: DEALERS WILL REROUTE THE WIRING HARNESS BY INSTALLING A JUMPER WIRING HARNESS. THE RECALL BEGAN ON DECEMBER 16, 2006. OWNERS MAY CONTACT AUDI AT 1-800-822-2834.
- Manufacturer: VOLKSWAGEN OF AMERICA, INC
- Components: ELECTRICAL SYSTEM
- Summary: ON CERTAIN PASSENGER VEHICLES, IF A DRIVER'S KNEES PUSH AGAINST THE KNEE BOLSTER (CRASH ELEMENT) LOCATED UNDER THE DASHBOARD, IT CAN CONTACT THE HEADLIGHT SWITCH WIRING HARNESS, AND AN ELECTRICAL SHORT COULD OCCUR.
- Consequence: A FIRE COULD ORIGINATE IN THE LEFT DASHBOARD AREA.
- Remedy: DEALERS WILL INSTALL A PROTECTIVE COVERING ON THE KNEE BOLSTER (CRASH ELEMENT). IN ADDITION, THE WIRING HARNESS AS WELL AS THE FELT PROTECTOR ON THE LEFT SIDE OF THE DASHBOARD CARRIER WILL BE CHECKED, AND REPLACED IF NECESSARY. THE RECALL BEGAN ON JULY 26, 2004. OWNERS SHOULD CONTACT AUDI AT 1-800-822-2834.
Negative 2004 Audi A6 car reviews
Positive 2004 Audi A6 car reviews
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I bought it and haven't touched another car ever since. It would be like cheating. All I can say is, test drive this car - you will love it too!
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I recently traded in my 2003 3.0 A6 for a brand new 2004 A6 2.7 s-line and I couldn't be happier. While I really enjoyed my 3.0, the 2.7's acceleration and handling are simply outstanding. The spoiler is the perfect finishing touch to the rear end, and the 9 spoke wheels are beautifully crafted. The quattro is also amazing, and the braking is top-notch. As a car enthusiast, I highly recommend the s-line.
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I had many friends who owned Audis in the past, circa mid-80s. They loved the performance but hated the maintenance problems. I waited for some fifteen years, but now that I have the car, I love it. So far, I have driven 16,000 miles and counting, and I have had no appreciable problems. The regular service has been incredibly good, punctual, and reliable. Actually, they have even been kind. I would strongly recommend this car, specifically the A6 and A6 allroad.
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A great driving 300HP car. My major complaint is city mileage but it is an 8. It's a comfortable and great handling automobile with lots of power.
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This is definitely the best car I have ever driven in tough winter conditions here in Minnesota. I have always used SUVs before, but I don't think I'll ever go back to one again. I also really appreciate the XFM radio that comes standard in this vehicle. The heated car seats activate very quickly.
Additional sources
More sources of information about 2004 Audi A6 problems:
2004 Audi A6 Quattro Problems and Complaints - 17 Issues
Problem with your 2004 Audi A6 Quattro? Our list of 17 known complaints reported by owners can help you fix your 2004 Audi A6 Quattro.
2004 Audi A6 S-Line 2.7T Reliability - AudiWorld Forums
Dec 22, 2011 ... worst car ive ever owned and im not alone. everything inside them breaks, cup holders switches, you name it, its like a prop in a slapstick ...
2004 Audi A6 Problems and Complaints - 11 Issues
Problem with your 2004 Audi A6? Our list of 11 known complaints reported by owners can help you fix your 2004 Audi A6.
What are common problems on an 2005 Audi A6 with 150,000 miles ...
Dec 17, 2015 ... The answer greatly depends on the engine and drive train. Different engines have different issues, same with transmission - front wheel ...
Any common problems with 2000 A6 2.7?
Oct 23, 2004 ... Hello and welcome to the Audizine Forums! As a guest, you are welcome to poke around and view the majority of the content that we have to offer, ...
Other years of Audi A6
Are you having problems with your 2004 Audi A6?
Chauncey Hahn 2024-04-06
Hi there! I wanted to share that my Audi A6 gets around 14.5 miles to the gallon. I had a bit of a frustrating experience with the dealership (Legend in Amityville) as they didn't honor the loaner agreement and made ownership a bit of a challenge. I would recommend avoiding this dealership if possible. Also, just a heads up that the car can be a bit of a gas guzzler. Thanks for listening!
Alphonso Spinka 2024-02-22
Love it! It's just that I wish I didn't have to put so much money into it. When it rains, it pours. My eyes were bigger than my stomach. It could be an awesome car. I love working on it (a lot), even though everything is a pain to get to and nothing is simple. But, I do love my car, I guess because I am still paying on it.