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 2012 Volkswagen Jetta owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2012 Volkswagen Jetta. The contact stated that while driving at 15 mph, the vehicle made a clunking sound then loss motive power without warning. The crankshaft position sensor was illuminated. The vehicle was towed to the dealer and diagnosed with code P0016 - crankshaft position sensor fault. The contact was informed that the engine needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure and informed the contact that there was no recall associated with the VIN and referred the contact to the NHTSA for assistance. The failure mileage was approximately 130,000.
The contact owns a 2012 Volkswagen Jetta. The contact stated that while operating the vehicle, the check engine light would remain illuminated. Additionally, the vehicle experienced hard starts and rough idling. The vehicle was taken to the local dealer who replaced the spark plugs and decarbonize the engine however, the failure persisted. The vehicle was later taken to an independent mechanic who changed the coil pack and fuel sensor but the failure was not resolved. The manufacturer was not yet notified of the failure. The failure mileage was 98,000.
The contact owns a 2012 Volkswagen Jetta. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate properly. Additionally, the contact stated that while starting the vehicle, the vehicle was shuddering. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 40,000.
I remember having my keys in my hand and my car was slowly reversing out the driveway. I panicked, i was stomping on my brakes for a while jerking back and it took me about 2 minutes to finally get the key back in and try to put in park again. I went to a shop the following weekend because all the jerking and jabbing to get my key back in seems to have caused my ignition switch to misfire or whatever the word he (mechanic) used, so now i cannot take my key out like a regular person, I have to flick my key a certain way out anytime i want to turn my car off.(even mechanics have a hard time taking it out. I was also given a qr code to scan and was brought the this exact recall of the situation with my car. I now have my engine light on and [redacted] gave me the fault code for my map sensor. I'm not sure if the two are related but this was following the incident.
My DPF system failed after my warranty ran out, about 128,000mi. and VW charged me $3000 to replace the DPF, then two days later the Nox Catalyst failed and they wanted another $2500 out of me. I tried the regen like the manual says, and the car went in limp mode 75 miles from my house in the middle of the highway. The car is not safe to drive, and they would not tell me if replacing the Nox catalyst will fix my problem, or just reveal another multi thousand dollar problem. The car is parked for the past 6 months and is not drivable.
The car stop at the stop sign n in the traffic then push start n it worked 4times in a 2years I thought the vw made fir saving fuel. Today the car stop at highway n I almost got killed by sudden stopped. I got panicked couldn't think about anything then push the start it worked again. I Google myself, there are many same problems n reports for 2012 vw jetta. Please help me what I should do. Last year The vw dealer couldn't find anything wrong but there is some problem
I've been having problems with this car every since I purchased it from carvana Epc and check engine light keeps cutting on I went to Volkswagen for them to fix and for them to claim they fixed it august 2019 for my light to still light up... they also broke my heater coil which prevents my heat from blowing hot or warm air only
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
Upon returning home on Sunday 12/21 at 3 pm, smoke was coming from our garage. We opened the garage door to discovery my car on fire and a garage full of smoke. We called 911 and requested fire assistance. We then proceeded to extinguish the fire using 5 commercial size fire extinguishers. The fire department arrived and extinguished the flames and dragged the car from the garage. The car had not been driven for approximately 18 hours.
Tl* the contact owns a 2012 Volkswagen Jetta. While starting the vehicle, the contact noticed a burning odor emitting from inside the vehicle. The engine compartment caught fire. The fire department was able to extinguish the fire. A police report was not filed. The vehicle was towed to an auto body repair center, but was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 55,000.
Engine complaints in other Jetta years
Frequently asked questions
How common are engine problems on the 2012 Volkswagen Jetta?
NHTSA has 91 complaints about the engine & cooling of the 2012 Volkswagen Jetta, 18% of the model year's 500 complaints. The component named most often is engine › diesel (1 mentions).
Is there a recall for 2012 Volkswagen Jetta engine problems?
No. NHTSA lists no engine & cooling recall for the 2012 Volkswagen Jetta, though it has 5 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 2012 Volkswagen Jetta engine problems start?
Half of the complaints with a recorded mileage happened before about 44,000 miles, and 32% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 4 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.