Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2004 Volkswagen Passat owners, lightly cleaned up (personal details are redacted by NHTSA).
The Passat ignited in our driveway at 4:00 a.m. It had not been started/driven in a week. We woke to the sound of the tire bursting. There is a houston police department /arson case # [redacted] - phone # [redacted]. Inspector [redacted]. He said the ignition area of the car was the start of the fire. I think he was arson department. The car was totaled. We are lucky we did not loose our house and neighbor's if we had not heard the tire blow. I am not exactly sure of the mileage but know it was low for the year and think it was below 90,000...updated 05/02/16
March 8 at approximately 10 pm: on a trip back from out of town with my 2 young children and puppy, the rpms in the vw Passat began escalating yet no additional power was coming into the engine. I tried shifting to a lower gear and also attempted cruise control to minimize the RPM racing. Cruise control did not respond and the change in gear did nothing for the racing rpms. A few more miles down the highway the car began losing momentum -? It was similar to the feeling of running out of gas though I had a full tank. I moved the car into the service lane before the engine shut off. Within seconds of pulling over, the engine began smoking. I felt the need to get out of the vehicle, even though I was on the highway late at night, pregnant, with 2 small children and a puppy. …
Bought this car from original owner exactly two years ago. All receipts for upkeep & maintenance were available. Car ran great for 30,000 miles. One day it starting running bad within 30 mins whole motor shut down. Motor just shut down in middle of highway. Piece of metal found under valve cover and now for no reason needs a whole new motor!!!! This is a serious issue! Very dissatisfied! I have owned three vehicles all for more than 10 years until this vw and now am without a car. Never will buy or mention anyone else buying a vw. Cannot afford to spend $3,000 for another motor after only owning for 2 years! Now the car sits at a mechanic shop with new tires and new valve cover gaskets and a pos motor.
Tl* the contact owns a 2004 Volkswagen Passat. While driving approximately 25 MPH, the engine warning indicator illuminated, and "oil pressure" and "stop engine" messages displayed on the instrument panel. The vehicle was towed to an independent mechanic who diagnosed that there was oil sludge in the engine, but the repairs were unknown. The failure persisted. The vehicle was driven home and inspected by an independent mechanic who informed the contact that the engine needed replacement. The vehicle was not repaired. The manufacturer was made aware of the failures. The failure mileage was approximately 44,000. ..updated 06/27/17
Tl* the contact owns a 2004 Volkswagen Passat. While driving approximately 60 MPH, there was a complete loss of engine power. When the vehicle was maneuvered to the side of the road smoke and flames began to emit from under the hood. The contact immediately exited the vehicle. The fire department extinguished the fire which originated within the engine area. The vehicle was declared as destroyed and towed to savage facility. The manufacturer was notified of the problem. The approximate failure mileage was 96,000. Updated 05/11/12 updated 06/01/12
Tl* the contact owns a 2004 Volkswagen Passat. The contact stated that while driving 15 MPH, an unusual sound was heard and smoke started to emit from the engine compartment as the vehicle stalled. The vehicle was towed to a dealer where the technician diagnosed that the timing belt had become fractured and the cam shaft pulley failed. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 128,000.
Tl contact owns a 2004 Volkswagen Passat. While driving 30 MPH, the check engine light illuminated and the engine began to shutter. The contact smelled rubber burning and the vehicle was towed to a local mechanic. The cause of failure was diagnosed as a failed ignition coil. The vehicle was repaired. The current mileage is 56,010 and failure mileage was 55,955.
While driving the car at highway speeds it stalls and the epc light comes on. This has happened many times while merging with other traffic and can be very dangerous. I have spent well over $1000 trying to get this problem fixed, and the problem still remains. Even the vw dealership dose not have an answer.
2004 Passat 1.8t caught fire after a coil pack failed and the catalytic converter overheated. I only drove 5 miles after the coil pack failed trying to limp back to the dealer when the fire started. I put the fire out myself.
About 1/2 mile from my house car indicated that there was an oil pressure issue and displayed "stop engine". Proceeded to drive home and let the car cool off and checked oil level. Oil level was fine, based on the dip stick. Started the car up and the car was very loud and exhibited a rough and irregular idle. "stop engine" indicator came on again. Did research on the internet and found that there have been numerous other issues with exactly the same issue. Issue apparently sludge build up in the engine. Car is currently at repair shop and I have no faith that this will be resolved in a positive way (ie not costing me as the car is out of warranty) as apparently there is a design issue with this engine and manufacturer, repair shop recommended changing the oil filter and oil, yet the most recent oil change was performed just about 3 weeks ago. …
Engine complaints in other Passat years
Frequently asked questions
How common are engine problems on the 2004 Volkswagen Passat?
NHTSA has 76 complaints about the engine & cooling of the 2004 Volkswagen Passat, 27% of the model year's 285 complaints. The component named most often is engine (18 mentions).
Is there a recall for 2004 Volkswagen Passat engine problems?
No. NHTSA lists no engine & cooling recall for the 2004 Volkswagen Passat, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2004 Volkswagen Passat engine problems start?
Half of the complaints with a recorded mileage happened before about 80,000 miles, and 5% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 8 fires and 0 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.