Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
30–25K
1125–50K
2550–75K
1375–100K
10100–150K
2150K+
64 reports with mileage · 79 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.
Electrical System. Review the 49 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Tires. Review the 37 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Service Brakes, Hydraulic. Review the 31 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
6 crash reports0 fire reports4 injury reports
What owners actually said
143 reports
Mileage unknown · Dec 4, 2002
Equipment
THE RADIO HAD REALLY BAD RECEPTION, CD AND TAPE WERE FINE. THE RECEPTION ONLY WORK FOR SOME REASON ( BUT NOT THAT GREAT) IN THE AREA WHERE THE AUDI DEALER WAS. THE FIRST OWNER HAD AUDI PUT A NEW RADIO, BUT IT TOOK THEM 16 MONTHS TO RECEIVED THE NEW RADIO. THAT IS 2 MONTHS AFTER I BOUGHT THE CAR FORM THE FIRST OWNER. THE RADIO W…
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THE RADIO HAD REALLY BAD RECEPTION, CD AND TAPE WERE FINE. THE RECEPTION ONLY WORK FOR SOME REASON ( BUT NOT THAT GREAT) IN THE AREA WHERE THE AUDI DEALER WAS. THE FIRST OWNER HAD AUDI PUT A NEW RADIO, BUT IT TOOK THEM 16 MONTHS TO RECEIVED THE NEW RADIO. THAT IS 2 MONTHS AFTER I BOUGHT THE CAR FORM THE FIRST OWNER. THE RADIO WAS CHANGED BUT WITH THE SAME RESULT. THE DEALER SAID SOMETHING IT HAPPEN THAT THE RADIO DOES NOT WORK IN SOME AREA, AND THAT IT WAS NORMAL. ( AS IF I DIDN'T KNOW HOW A RADIO WORKED) I EVEN TALKED TO THE MANAGER OF THE AUDI DEALER, AND HE SAID THE SAMETHING, SO UNTIL NOW I'M DRIVING A 40.000 DOLLARS CAR WITH NO RADIO, HOW FUNNY IS THAT! DT
NHTSA ODI #770413
Mileage unknown · Dec 4, 2002
Engine And Engine Cooling
I JUST DID AN OIL CHANGE MYSELF ON THE CAR AND I NOTICED. (BEFORE THE CHANGE) THAT THE WHOLE BOTTOM OF THE ENGINE WAS COVERED BY OIL. SO THAT IS THERE WAS AN OIL LEAK. I THINK IS IT FROM THE HEAD CYLINDER GASKET, THIS SHOULD NOT BE HAPPENING IN THIS EARLY STAGE OF THE CAR SINCE MY LAST INSPECTION WAS ONLY 8000 MILES AGO. I JUS…
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I JUST DID AN OIL CHANGE MYSELF ON THE CAR AND I NOTICED. (BEFORE THE CHANGE) THAT THE WHOLE BOTTOM OF THE ENGINE WAS COVERED BY OIL. SO THAT IS THERE WAS AN OIL LEAK. I THINK IS IT FROM THE HEAD CYLINDER GASKET, THIS SHOULD NOT BE HAPPENING IN THIS EARLY STAGE OF THE CAR SINCE MY LAST INSPECTION WAS ONLY 8000 MILES AGO. I JUST HOPE IT'S NOT WORSE SINCE THE CAR HAS LOST SOME POWER. THE TOTAL COST WAS AN INSANE $1500 BECAUSE THE HEAD CYLINDER AND BOTTOM WAS SEND TO BE RESURFACED, IF YOU NEED IT OR NOT. DT
NHTSA ODI #770412
Mileage unknown · Dec 14, 2001
SteeringStructure
THE DOOR LOCKS AND ALARM SYSTEM FAILED WHEN MY CAR WAS STOLEN FROM THE IKEA PARKING LOT IN ELIZABETH, NEW JERSEY. THIEVES PUNCHED OR DRILLED A HOLE IN THE DRIVER DOOR BETWEEN THE DOOR HANDLE AND DOOR LOCK AND WERE ABLE TO OPEN THE DOOR AND DISABLE THE ALARM SYSTEM AT THE SAME TIME. AFTER BREAKING THE STEERING COLUMN, STARTING TH…
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THE DOOR LOCKS AND ALARM SYSTEM FAILED WHEN MY CAR WAS STOLEN FROM THE IKEA PARKING LOT IN ELIZABETH, NEW JERSEY. THIEVES PUNCHED OR DRILLED A HOLE IN THE DRIVER DOOR BETWEEN THE DOOR HANDLE AND DOOR LOCK AND WERE ABLE TO OPEN THE DOOR AND DISABLE THE ALARM SYSTEM AT THE SAME TIME. AFTER BREAKING THE STEERING COLUMN, STARTING THE CAR, AND OUTRUNNING POLICE, THE CAR WAS RECOVERED VIA LOJACK WITH ALL MY PERSONAL BELONGINGS GONE. AUDI SHOULD ADRESS THIS ISSUE BY MAKING NEW CARS WITH AN IMPROVED SECURITY SYSTEM AND BY DOING SOMETHING FOR EXISTING OWNERS TO FIX THIS COSTLY AND DANGEROUS PROBLEM. OTHER AUDI OWNERS NEED TO BE MADE AWARE OF THIS PROBLEM.*AK
NHTSA ODI #755656
Mileage unknown · Sep 26, 2001
Tires
PE00 020; CONSUMER WAS TRAVELING ABOUT 55MPH ON HIGHWAY AND NOTICED A TREMBLE OF VIBRATION. HE WAS ABLE TO PULL OVER. NOTICED THAT REAR PASSENGER TIRE TREAD SEPARATED FROM RIM. FIRESTONE, BRIDGESTONE RE040, POTENCA, P225 R15/ DEALERSHIP WAS AWARE OF THE PROBLEM.*AK
NHTSA ODI #896930
Mileage unknown · Aug 3, 2001
Tires
THIS IS THE THIRD TIRE I HAVE HAD TO REPLACE SINCE GETTING THE CAR, ONE HAD A BUBBLE AND THE OTHER TWO HAD A SIDEWALL BLOWOUT WILL DRIVING THE CAR. AUDI HAS SENT THEIR CUSTOMERS A LETTER STATING THAT IF CERTAIN CONDITION ARE MET THEY WILL PAY FOR THE REPLACEMENT. *AK (TIRESIZE: 225/45YR17)
NHTSA ODI #749732
Mileage unknown · Jul 17, 2001
Tires
THIS IS MY 2ND TIME REPLACING BUBBLED TIRES. *AK (TIRESIZE: 225/45 17)
NHTSA ODI #748592
Mileage unknown · May 30, 2001
Parking BrakeCrash
VEHICLE WAS PARKED AND LEFT AFTER REMOVING ITEMS FROM TRUNK, AND IT SUBSEQUENTLY RAN AWAY. *AK
NHTSA ODI #746128
Mileage unknown · Mar 24, 2001
Service Brakes, HydraulicVehicle Speed ControlCrashInjury
ON OR ABOUT 11/20/00 I APPLIED BRAKES WHILE DRIVING DOWN HILL. CAR ACCELERATED OUT OF CONTROL. BRAKES WOULD NOT STOP CAR, WHICH EVENTUALLY CRASHED INTO TELEPHONE POLE. I INJURED MY LEFT LEG. AUDI ADVISED ME THEY KNEW OF NO "DEFECT" THAT COULD CAUSE THIS ACCIDENT. ON 13/21/01 AS I APPLIED BRAKES TO TURN INTO A PARKING SPACE CONTI…
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ON OR ABOUT 11/20/00 I APPLIED BRAKES WHILE DRIVING DOWN HILL. CAR ACCELERATED OUT OF CONTROL. BRAKES WOULD NOT STOP CAR, WHICH EVENTUALLY CRASHED INTO TELEPHONE POLE. I INJURED MY LEFT LEG. AUDI ADVISED ME THEY KNEW OF NO "DEFECT" THAT COULD CAUSE THIS ACCIDENT. ON 13/21/01 AS I APPLIED BRAKES TO TURN INTO A PARKING SPACE CONTIGUOUS TO A BUILDING THE VEHICLE ACCELERATED. WHEN I BOTH HEARD TO ENGINE RACING AND THE CAR ACCELERATING I FORTUNATELY SHIFTED INTO NEUTRAL AND STOPPED THE VEHICE. MY FOOT WAS NOT ON THE ACCELERATOR! I REFUSE TO DRIVE THIS VEHICLE. AUDI'S RESPONSE IS THAT IF THE DEALER FINDS A PROBLEM AUDI WILL TAKE APPROPRIATE ACTION. THERE IS A PROBLEM WHETHER AUDI FINDS IT OR NOT. I AM NOT RISKING A FATAL ACCIDENT TO ESTABLISH THIS FACT!*AK
NHTSA ODI #742955
Mileage unknown · Feb 27, 2001
Engine And Engine Cooling
MUCH OF THIS INFORMATION IS FROM WWW.AUDIWORLD.COM. THERE HAVE BEEN NUMEROUS TURBO FAILURES ON THE EARLIER 2000 AUDI S4. FOR THE PEOPLE THAT HAVE HAD TURBO FAILURES, SOME HAVE INDICATED AN ABNORMAL 'SIREN' SOUND WHEN ACCELERATING. THERE HAVE BEEN A FEW TURBOS THAT HAVE ALSO BEEN REPLACED (WITHOUT FAILURE) BECAUSE OF COMPLAINS…
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MUCH OF THIS INFORMATION IS FROM WWW.AUDIWORLD.COM. THERE HAVE BEEN NUMEROUS TURBO FAILURES ON THE EARLIER 2000 AUDI S4. FOR THE PEOPLE THAT HAVE HAD TURBO FAILURES, SOME HAVE INDICATED AN ABNORMAL 'SIREN' SOUND WHEN ACCELERATING. THERE HAVE BEEN A FEW TURBOS THAT HAVE ALSO BEEN REPLACED (WITHOUT FAILURE) BECAUSE OF COMPLAINS OF THIS SOUND. MY CAR STARTED EXHIBITING THIS SOUND FROM 2K MILES ONWARD. INITIALLY, THIS SOUND OCCURED ONLY WHEN THE ENGINE WAS COLD. IT IS HOWEVER NOW MORE APPARENT MOST OF THE TIME. I HAVE BROUGHT THIS TO THE ATTENTION OF THE AUDI SERVICE DEPARTMENT BUT HAVE INSISTED THAT SOUND IS NORMAL AND IS APPARENT EVEN ON NEW CARS. SINCE THEN I HAVE TEST DRIVEN A NEW S4 AND THE SOUND IS NOT PRESENT. THE THEORY TO THE CURRENT FAILURE IS THAT THERE IS AN INSUFFICIENT OIL SUPPLY TO THE TURBOS AND BECAUSE OF THIS THE INTERNAL BEARINGS ARE DAMAGED AND HENCE START WHINING ('SIREN SOUND')AND EVENTUALLY FAILING. A FEW CHANGES BY AUDI ALSO SUPPORTS THIS THEORY. 1) THEY HAVE REVISED THE TURBOS ON THE NEWER S4S. THE OIL INLET TO THE NEW TURBOS ARE NOW LARGER. ALSO,2) THEY HAVE REVISED THE RECOMMENDED OIL WEIGHT FROM A 5-40W TO 0-30W WHICH ENSURES BETTER OIL FLOW AND LUBRICATION AT LOWER TEMPERATURES. THE REASON OF MY CONCERN IS THAT THE TURBOS COST MORE THAN $5000 DOLLARS TO REPLACE AND I INTEND TO KEEP MY CAR FOR 5 YEARS OR 90K MILES (WHICHEVER COMES FIRST). FYI THE 'SIREN' SOUND IS SOMETIMES LOUD ENOUGH THAT PASSENGERS IN MY CAR THINK THAT THERE IS A EMERGENCY VEHICLE IN THE VICINITY. I WOULD BE MORE THAN HAPPY TO ASSIST YOU IN ANY WAY, OR PROVIDE YOU WITH CONTACTS, LITERATURE ON INDIVIDUALS THAT HAVE EXPERIENCED TURBO FAILURES.
NHTSA ODI #741610
Mileage unknown · Jan 15, 2001
Tires
NO SUMMARY LISTED FOR ABOVE VEHICLE. *AK (TIRESIZE: 225/45VR17)( DOT NUMBER: TIRE SIZE: 225/45VR17 )
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2000-2001 Audi TT Coupe, TT Roadster, 2000-2002 A4, and S4 vehicles equipped with Non-Azide Driver Air Bag Inflators (NADI) that do not contain phase stabilized ammonium nitrate (PSAN) propellant. Due to a manufacturing issue, the NADI inflators may absorb moisture, possibly causing the air bag to deploy improperly in the event of a crash.
Consequence & remedy
Consequence: In the event of a crash necessitating air bag deployment, the air bag may not properly protect the occupant, increasing the risk of serious injury or death.
Remedy: Dealers will replace the driver frontal airbag inflator with an alternative inflator, free of charge. Owner notification letters were mailed November 2, 2021. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 69CJ.
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
0
No exact-year investigations in this snapshot.
2000 Audi S4 Problems, Complaints & Recalls | Skip That Year