Problems · by component

2002 Audi A4 engine and engine cooling problems

29 owner complaints to NHTSA about the 2002 Audi A4 cite engine and engine cooling, 15% of all 189 complaints for this model year. NHTSA also lists 1 recall on this component.

Complaints
29
15% of all complaints
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the engine and engine cooling

Verbatim from NHTSA complaints, newest first
“TL* THE CONTACT OWNS A 2002 AUDI A4. THE CONTACT STATED THAT THE VEHICLE WOULD CONSTANTLY OVERHEAT WITHOUT PROPER WARNING. THE CONTACT REPLACED THE RADIATOR AND THERMOSTAT, BUT TO NO AVAIL. THE CONTACT TOOK THE VEHICLE TO AN INDEPENDENT MECHANIC WHO ADVISED THAT THE PROBLEM WAS WITHIN THE ENGINE, BUT COULD NOT DETERMINE THE SPECIFIC CAUSE OF THE FAILURE. THE VEHICLE WAS NOT INSPECTED BY THE DEALER OR REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN.”
Owner complaint to NHTSAFiled Sep 15, 2011Engine and engine coolingODI 10425539
“WE HAVE A 2002 AUDI A4 1.8L WITH 16,700 MILES ON IT (VERY VERY LOW MILEAGE). AT 16,700 MILES, THE WATER PUMP (ACCORDING TO THE DEALER) WENT BAD ... FOR THE YEAR OF THE VEHICLE, AND THE VERY VERY LOW USAGE, I SIMPLY FIND THIS UNACCEPTABLE. *TR”
Owner complaint to NHTSAFiled Sep 25, 2008Engine and engine coolingODI 10243420
“I WAS DRIVING DOWN GEORGIA AVENUE WHEN ALL OF A SUDDEN MY CAR BEGAN TO RIDE VERY ROUGH, A DASH LIGHT CAME ON AND THE ENGINE LOST COMPLETE POWER. I WAS ABLE TO START THE CAR UP AGAIN AND LUCKILY WAS ABLE TO COAST DOWN HILL TO MY HOME. (THE CAR IS A 5-SPEED) SMOKE WAS COMING OUT OF THE TAIL PIPE. I CALLED THE DEALER IN ROCKVILLE AND THEY SUGGESTED THAT IT WAS PROBABLY A COIL FAILURE. I HAD JUST HAD A COIL REPLACED IN FEBRUARY, WHEN A SIMILAR TYPE THING HAPPENED ON CONNECTICUT AVE. DURING RUSH HOUR TRAFFIC. THAT TIME I WAS ABLE TO COAST INTO A GAS STATION. THE CAR DIED WITH NO PREVIOUS WARNING. ALL FOUR COILS HAVE BEEN REPLACED (4 CYLINDER) WITH NO REIMBURSEMENT FROM AUDI BECAUSE THE CAR IS NO LONGER UNDER WARRANTY. I ASKED THE DEALER WHETHER THIS WAS ONE OF THE RECALL ITEMS THAT AUDI PUT NOTICE OUT ON AND THEY SAID NO. NOW THAT I READ THAT OTHERS HAVE HAD SIMILAR PROBLEMS WITH THEIR A4S IT SEEMS TO ME LIKE THIS IS A DEFECT IN THE SYSTEM AND SHOULD BE COVERED BY AUDI. AFTER ALL, MY DEALER TOLD ME THAT AUDI CHANGED THE COIL SYSTEM ON THE NEWER MODELS BECAUSE OF THE PROBLEM. *TR”
Owner complaint to NHTSAFiled Jun 16, 2008Engine and engine coolingODI 10231123
“A KNOWN DEFECT IN AUDI 1.8 TURBO OIL PUMP .AUDI FAILED TO RECALL THE AUTO ALTHOUGH THEY WERE AWARE OF PROBLEM SINCE 2001. RESULTED IN TOTAL ENGINE DESTRUCTION. AUDI,HONOLULU REFUSES TO REPAIR. THIS SAME COMPLAINT IS SUBJECT OF 5 CLASS ACTION CIVIL LAW SUITS ON MAINLAND. DURING AN OIL STARVATION ENGINE FAILURE, ENGINE EXPLODES, RISK TO DRIVER AND PUBLIC IS SIGNIFICANT AS NOTED BY CIVIL COURT MASSACHUSETTS DOCUMENT .AUDI IS DEFENDANT IN LAW SUIT WHICH LISTS. DECEPTION, AND FAILURE TO RECALL VEHICLE AS PRIME COMPLAINTS.... INJURY AND POTENTIAL LOSS OF LIFE WHEN ENGINE EXPLODES IS ALSO MENTIONED IN DOCUMENT.DOC. NO.06CV3513-JCL-MFDISTRICT OF MASSACHUSETTS1:06-CV-11875-JLT AKA PLAINTIFFS SECOND AMENDED CLASS ACTION. AUDI HAS NOT YET ALERTED ALL OWNERS OF THESE VEHICLES THAT A OIL PUMP DEFECT IN MODELS 1997-2004 CAN HAVE CATASTROPHIC OIL STARVATION AND EXPLOSION LEADING TO INJURY AND OR DEATH. I HAVE ASKED AUDI-HONOLULU WHY THEY DID NOT WARN OWNERS. THEY RESPOND "WE WERE NOT OBLIGATED TO DO SO" THIS ENGINE DEFECT NEARLY KILLED MY SON AND COULD INJURY OR KILL ANYONE SUBJECT TO ITS ENGINE SEIZURE/BURN UP. MICHAEL HEALY MD MPH *TR”
Owner complaint to NHTSAFiled Nov 12, 2007Engine and engine cooling, EquipmentODI 10208651
“FAILURE OF ENGINE IGNITION COILS ,CAUSING VEHICLE TO LOSE POWER, AND CREATES SURGING AND SHAKING OF VEHICLE, MAKING IT UNSAFE TO DRIVE. HAPPENED SUDDENLY WHILE DRIVING. DEALER DIAGNOSED AS FAILURE OF 2 OF 4 ENGINE COILS. THESE WERE PREVIOUSLY REPLACED UNDER RECALL. CONTACTED AUDI, BUT DID NOT RECEIVE SATISFACTORY ANSWER. THEY WILL NOT COVER REPAIR, AND THEY CLAIMED THAT IT WAS NOT A PART THAT REQUIRED REGULAR REPLACEMENT AND WILL NOT STATE WHAT THE LIFE OF THE COILS SHOULD BE. *AK”
Owner complaint to NHTSAFiled Mar 24, 2007Engine and engine cooling, Electrical systemODI 10186059
“I HAVE AN 2002 AUDI A4. IN DECEMBER 2006 THE CAR SUDDENLY STALLED WHILE TRAVELING ON AN EXTREMELY BUSY INTERSTATE. THIS OCCURRED WITH NO WARNING AT ALL. AFTER HAVING THE CAR TOWED ($200 PLUS) WE FOUND THAT THE TIMING BELT HAD FAILED WHICH IN TURN COMPLETELY DESTROYED THE ENGINE. THE CAR ONLY HAS 45,000 MILES ON IT AND WE FOLLOWED ALL RECOMMENDED SERVICE. THIS BELT SHOULD NOT HAVE FAILED AND BY DOING SO PUT MY FAMILY AND EVERYONE ELSE ON THAT HIGHWAY IN A HORRENDOUSLY DANGEROUS SITUATION. *JB”
Owner complaint to NHTSAFiled Jan 3, 2007Engine and engine coolingCrash reportedODI 10177699

Showing 6 of 29 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 27, 2026NHTSA vehicle page
02 —Related recalls

1 recall on this component

Engine and engine cooling: engine

Free remedy

The Gates Corporation (Gates) is recalling certain aftermarket Tru-Flow Water Pumps, part number TFW 41127, sold at certain NAPA Auto Parts and/or installed by automotive service technicians after November 1, 2013 (and manufactured August 2013 through October 2013) that have a black-colored pulley/sprocket or do not have 'US9377' stamped on the water pump housing. These service replacement parts were sold for use in model year 1999-2005 Audi A4, 2000-2006 Audi TT, 1998-2005 Volkswagen Beetle, 1999-2006 Golf, 1999-2008 and 2011-2013 Volkswagen Jetta, and 2000-2005 Volkswagen Passat. In the affected water pumps, the pulley or sprocket that turns the timing belt may develop microfractures causing the timing belt to fail.

Engine and engine coolingReported Mar 7, 2014NHTSA 14E007000
Data from NHTSA Recalls API · synced Oct 27, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Other 2002 A4 problem areas