Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2012 Volkswagen Jetta owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2012 Volkswagen Jetta. The contact stated he smelled a strong odor of carbon dioxide inside the vehicle. The vehicle was taken to the dealer for a diagnostic test however, no failure was found. The vehicle was then taken to an independent mechanic and the contact was informed that the vehicle did not have a diesel exhaust fluid (DEF) tank. The vehicle was not repaired. The manufacturer was contacted but offered no assistance. The failure mileage was 100,000.
It first started around May 2021. The first symptom was gas or exhaust fumes in my cabin of the vehicle. Apart believed to be a fact it was the canister purge solenoid so I changed it out myself twice. The symptoms did not seem to go away so I decided to take it to a Firestone; after a week and a half they decided they didn't know what it was so I was refunded. After that I took it to "Checkered Flag Volkswagen" in Virginia Beach. When I was diagnosed with the charcoal canister needed to be replaced. After that was changed I had to move the very next day to Alton Illinois. So I use the vehicle to move to Alton Illinois vehicle seem to be running fine but after the day the check engine light came back on was the same code. …
I was driving on the road going up a hill and my fuel was just alittle low about 120 miles my car sputtered and died and didn't start back up stuck on the road with barley any gaurd rail so I'm partially in the lane and I got it looked at and my high pressure fuel pump failed and sent metal scrapes all throughout my fuel system so it's estimated around 10k to replace I got told it's because the pump barley lost fuel and it uses that to lubricate itself so somthing as simple as one of the pumps going out and this problem can occur or a slight short im just reporting because many others have had this issue with the pump and mine shouldn't have even had nothing going on at 120 miles 1/4 of a tank and I did look in my tank and confirmed I had fuel that I filled up at my local gas station in the middle of the city so it's not bad diesel I own a 2012 volkswagen jetta 2.0l tdi cjaa
The car it's having severals issues such a fuel system injectors fuel gas leak also breaks and battery alternador and much more this car was sold to me by a dealership looking for legal assistant that can help also it was on a accident but I don't know when
2012 Volkswagen sportwagen tdi. When traveling on the freeway 4/11/15 glow plug light began blinking, we noticed an immediately significant loss of power. At this moment we were traveling on a two lane freeway that happened to have one lane blocked. Vehicles immediately began stacking up behind us. After pulling off the freeway attempted to stop and restart the engine, we had a very difficult time restarting the motor. Was able to drive back to the dealership, however had a significant reduction in power, safety was a concern and was very worried that the vehicle would stall while on the freeway. Because of this we pulled off the freeway and continued to limp towards the dealership on local roads. There was so much reduction in power than driving up a small hill almost brought the vehicle to a stop. …
On an afternoon in early February 2016, my 2012 vw Jetta tdi went into 'limp' mode after starting it and driving for less than two minutes out of my workplace parking lot. I was barely able to get it to the side of the road and stop, when it died completely and would not start again. The glow plug dash light came on. I had it towed to the dealer the next day and they diagnosed that the high pressure fuel pump (hpfp) had failed, blowing ,metal shards throughout the entire fuel system. They performed a diesel fuel test, which 'passed', so all repairs were covered under warranty. The car had 53,000 miles on it at that point. Parts alone would have cost nearly $4000, and I was not shown what the labor costs would have been! I then discovered that this is a 'known' issue but not under recall, only an extended warranty period. …
For over a year, my car was having hesitation issues. I kept calling my dealer and going in for regular service. At one point, my car started but then turned off two times. I kept getting different stories..."unable to replicate", "a faulty valve, code p2004." on my way to work 2/23/16, my car lost power on acceleration. The check engine light and the coil (tdi) light came on. I pulled over and turned off the car and waited. Then started the car again, began driving, and it happened again. I called the tow truck. Dealer service manager (fitzgerald - andrew) gave me the run around -- telling me that I put contaminated fuel in my car. I called sunoco and my, geico, immediately. …
While driving vehicle in parking lot, car sounded strange. As car moving through parking lot car completely stalled. Turned hazards on. Turned car off and attempted to restart car. Car would not restart and windows would not function. After a few minutes a nice gentleman offered to push car to safe location. Put car in neutral and steered as nice gentleman pushed car. Car lost all power steering at this time. Contacted nearest vw dealership, vw valencia. Vw valencia stated shop and dealership would be shutting down and could not help me, directed me to nearest vw 14 miles away. Pregnant and with a 2 year old in the car decided it would not be safe to venture out of my town. Called aaa. Aaa towed me to german hi tech inc. German hi tech inc determined fuel pump was to blame. Researched vw fuel pump recalls. Found recalls on passat and cc models. …
During February, the 2012 vw tdi Jetta sportwagen with 59,7000 miles stalled twice when trying to start the vehicle. On the third start the vehicle started but the glow plug light was flashing and the car would not accelerate to more than 45 MPH. The vehicle limped to the dealership, who found metal flakes in the fuel filter and stated that the in-tank fuel pump had failed. The in-tank fuel pump was replaced and the fuel system was apparently cleared of metal. At 63,000 miles, the glow plug light began to flash while at highway speed and the vehicle began to lose power. I got the vehicle to an exit, stopped it, turned the vehicle off and restarted. The glow plug light was no longer flashing and the car was drivable although it was lacking some acceleration and there was a moan/whine noise coming from the engine. …
Car would not start in the mornings, then it would after sitting awhile. After a couple of weeks before scheduled maintenance, car wouldn't start. Got it to start again, but drove less than a mile and it stall on a busy bridge. Car started up again and then driver could not get it into 4th gear. Coasted in third gear, but when reaching a stoplight, the car stalled yet again. This time car needed to be towed. While starting the car's headlights were flickering and had problems getting enough gas to the necessary components. Dealer once again could not come up with issue...claiming that fuel pump pressure was in range. However, the car's problem can easily be bad pressure since it occurred every time in the morning while the car sat for more than 8 hours. Whether the dealer could do the necessary comparison test for this issue is questionable since it must have been sitting in the garage. …
Related recalls
Fuel system, diesel
Volkswagen is recalling certain model 2009-2012 jetta and jetta sportwagen vehicles, manufactured from May 2008 through September 2011, model year 2010-2012 Volkswagen golf vehicles, manufactured from May 2009 through September 2011, and model year 2010-2012 Audi a3 vehicles, manufactured from September 2009 through September…
Remedy: Volkswagen will install an improved fuel injector line for the number 2 cylinder on certain vehicles and will install vibration dampers on all of the injector lines.
NHTSA investigations
Diesel Fuel Injector Line Leakage
By letter dated October 3, 2011, Volkswagen Group of America, Inc. (VW) notified the National Highway Traffic Safety Administration (NHTSA) that it will conduct a safety recall to address a defect in approximately 168,275 model year (MY) 2009-2012 Volkswagen Jetta, Jetta Sportwagen, Golf, and Audi A3 vehicles equipped with the 2.0L TDI Common Rail Clean Diesel engine (NHTSA Recall No.
High-Pressure Fuel Pump Failure
The Office of Defects Investgation (ODI) opened EA11-003 on February 7, 2011, based on 160 complaints to ODI and Volkswagen involving high pressure fuel pump (HPFP) failures in model year (MY) 2009 through 2010 Volkswagen Jetta and Golf and Audi A3 TDI vehicles and questions regarding fuel sample results provided by Volkswagen as part of its response to PE10-034.During EA11-003, ODI analyzed design information,…
Fuel System complaints in other Jetta years
Frequently asked questions
How common are fuel system problems on the 2012 Volkswagen Jetta?
NHTSA has 80 complaints about the fuel & propulsion system of the 2012 Volkswagen Jetta, 16% of the model year's 500 complaints. The component named most often is storage › tank assembly (1 mentions).
Is there a recall for 2012 Volkswagen Jetta fuel system problems?
Yes — NHTSA recall 11V-490 (fuel system, diesel, Oct 3, 2011). Recall repairs are free at authorized dealers.
At what mileage do 2012 Volkswagen Jetta fuel system problems start?
Half of the complaints with a recorded mileage happened before about 37,000 miles, and 38% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 0 fires and 1 injury to fuel & propulsion system 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.