2012 Volkswagen Passat: won't start

Filed May 15, 2026 · Electrical, Transmission · TX

I own a 2012 Volkswagen Passat [VIN [XXX] ] with approximately 1315xx miles. On December 17, 2025, I took the car to Rockwall County Volkswagen for three recalls. The car was running and was driven 9.5 miles to the dealership under its own power. I left the engine running when I left the it with the service advisor. When I returned to retrieve the car the following day, the service advisor informed me the car would not start. Their explanation shifted within the same conversation — first that someone had shut it off and it would not crank, then that it would crank but would not start. They claimed they had to pushed it into the service bay, replaced the airbag, and "code the computer for the clock-spring." The dealer refused to repair the no-start condition that occurred in their custody. I towed the car home at my own expense - $161. I performed my own diagnostic work using VW scan tools. The vehicle exhibited a textbook immobilizer or component protection rejection pattern: it would crank, start briefly for 1–2 seconds, then shut off, with three instrument cluster chimes and the coolant fan activating. The scan tool could not communicate with all vehicle modules, consistent with a failed module programming. After contacting the dealer's service manager, I towed the car back to the dealership [$64]. The dealer kept it from December 2025 through April 7, 2026 — approximately four months. During this time, they replaced the battery (charging me) and replaced the engine control module with a used unit they sourced and reprogrammed (charging me a total of $804.38). On April 7, 2026, I drove the car home. The vehicle was driven less than 35 miles after pickup before failing again. On April 27, 2026, my daughter — who had just undergone a serious medical procedure — was driving the car home and was stranded on the side of the road in 90+ degree Texas heat when the car suddenly stopped running with no warning or indication of impending failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA)

Filed Dec 9, 2025 · Electrical · AZ

We would have been in a life threating situation (very cold) if we would have not walked down highway to get internet service to look up the issue. What happened. We drove up from Phoenix to the mountains in Arizona. When starting the car after a stop (to look at a heard of Elk in a pasture) the car would not start. It would briefly start for a second then die. The dash lit up with many errors. We were stranded with no cell phone service with night approaching. We walked down the road and got cell service again and called family. Found out from online video while waiting for family to arrive you could disconnect the battery and reconnect to get the car started. We did this and it worked but engine light still was on. Car would not start again next morning and dash lit up. We would have been in a really bad situation (very cold) if we would have not walked down highway to get internet service to look up the issue. More internet research shows thousands of people have this problem.

Filed Sep 10, 2016 · Engine · 91,000 miles · PA

Check engine light came on and a 200 mi. Countdown began indicating the car would not start again. We were over 500 miles from home on the weekend. We had to drive the manual transmission car home 10 hours to nearest dealer with the threat of stalling in traffic on interstate. We could not turn the car off, nor stall it as the car indicated it would not start again. It was the nox sensor. I paid $625 plus tax to fix part of the fraudulent emissions system.

Filed Jul 20, 2016 · Engine · 103,000 miles · SC

The check engine light came on 7/14/16. I brought the car into the dealership on 7/15/16 and learned that the car's adblue heater had gone and will cost just over $1,000 to replace. The adblue heater heats the adblue to remove no2 for emissions, however volkswagen is claiming that this is not covered under the emissions warranty. The adblue system has not other purpose than for emissions and should be covered under the federal warranty, as the emissions would fall outside of the federal regulations without this component. Proper emissions help to keep our entire population safe and healthy from the harmful pollutants generated by vehicles. Now the car will not start because of this false emission sensor reading.

Filed Mar 25, 2016 · Electrical · 30,000 miles · NC

Tl* the contact owns a 2012 volkswagen passat. While attempting to start the vehicle, it failed to start and several warning indicators illuminated on the instrument panel. The contact stated that the battery was charged; however, the vehicle would not start. The contact also stated that the key was stuck in the ignition, but was able to be removed after several attempts. The vehicle was taken to the dealer, but the cause of the failure could not be determined. The manufacturer was not made aware of the failure. The failure mileage was 30,000.

Filed Sep 22, 2015 · Electrical, Engine · 112,000 miles · OR

Despite performing the regularly scheduled (very expensive) maintenance for this vehicle, we had many issues with our 2012 volkswagen passat tdi. This car was a commuter vehicle and was driven 110 miles/5 days per week at 55-65 MPH. We thought that with proper care and maintenance this car with its diesel engine would last more than 111,000 miles... We are so disappointed and frankly irate. What a waste of money. Our issues were: at numerous mileages, our head, tail and running lights had to be replaced at about $50/instance. At 104,738 miles, the passenger window would not go up or down. The window pin was replaced for $184.05. At 101,019 miles, the timing belt was replaced at a cost of $1,260.76. At 111,166 miles, our 2012 volkswagen passat tdi began to run very rough and loud on trip. We made it home and my husband brought the car to the volkswagen shop where we were told that bearings broke off and destroyed the interior of our engine. We replaced the engine at a whopping $6,865.76. At 127,115 miles the car would not start. We towed it to the dealer where we were told the starter had gone out and needed to be replaced. We sold the passat on the spot to the dealer before fixing this issue. We could not bear to sell this car to a private party.

Filed Aug 23, 2015 · Engine · 27,811 miles · CA

Was on ramp entering I-5 south off clairemont (san diego) when engine completely died with no warning light or previous signs. Steering and brakes stopped but I was able to pull to side. The car did not start right up right away. My daughter-in-law and I had just stopped to get gas; she got out of car to check gas cap. It was on tightly. She got back inside car and the car started again. A couple days later, doors unlocked on it's own while driving. I took it to dealer 8.21.2015 and they could find nothing wrong and nothing recorded in the car's system. They know I am very concerned and this is very disturbing.

Filed Jun 23, 2015 · Fuel system · 50,050 miles · MA

On 6-9-15 this diesel vehicle would not start. Mileage is approximate as I do not have the vehicle (it is at the dealer). Taken to vw of north attleboro, ma for diagnosis and repair. Dealer stated fuel was contaminated and cleaned out fuel lines and replaced filter. Dealer stated vehicle still would still not start. Dealer then stated they investigated fuel down-line of filter and found contaminated fuel in the common fuel distribution rail just before the fuel injectors. Dealer stated they did not retain the fuel filter which would have shown a filter breach/rupture that allowed the contaminated fuel to go beyond the filter causing this additional mischief. Request further investigation of vw passat diesel fuel filters and the fuel filtration system that may cause sudden engine failure because of passing through contaminated fuel, rather than filtering as it should which would cause a slower decrease in engine power because of restricted fuel flow. The whole purpose of diesel fuel filtration is to prevent introduction into critical engine components contaminates often found in diesel fuel. Dealer estimates repair cost of $7,236.25, the bulk of which is for damage to critical engine components downstream of the diesel fuel filter resulting in sudden engine stoppage. This vehicle was refueled only at diesel fuel stations for which receipts were obtained, so no gasoline or other improper fuel was introduced into this vehicle.

Filed Aug 13, 2014 · Brakes, Driver assistance · 30,000 miles · CA

While driving on the freeway, multiple dashboard warning lights came on. I noticed the speedometer was not working. I pulled off the freeway, called for a tow truck. The car would not start for the tow truck driver.

Filed Jul 22, 2012 · Engine, Fuel system · 1,052 miles · CA

In the morning, I went downstairs to my 2012 vw passat s. I noticed a pool of fluid that smelled like gasoline on the asphalt underneath the vehicle. I entered the front driver's side and turned the key from the off to on position. When I turned the key to on, a sound of draining fluid could be heard and a strong odor of gasoline could be smelled. I attempted to start the car, and it does turn over, but will not start. I decided not to attempt to start it again, afraid that the ignition would start a fire. Since this occurred on a sunday morning, all service departments at vw dealerships are closed. About 5 hours later, I unlocked the passat and opened the door to get some items from the car. Again, the sound of draining fluid could be heard and a strong odor of gasoline emitted from the vehicle. I checked underneath the car again, and a fresh pool of gasoline has formed. The gas is dripping from the passenger side, near the rear wheel. Needless to say, this is very disappointing, as the vehicle has only been driven for a little more than 1,000 miles.

Filed May 4, 2012 · Fuel system · 5,074 miles · CA

Scenario: 1. Car stationary in garage 2. Went to turn on the car in the morning and the car would not start 3. Radio and accessories working fine 4. Smelt a lot of gasoline and stopped cranking the car 5. Large amount of gasoline had spilled on the garage floor actions: 1. Tow truck driver would not tow the vehicle as it spilled gasoline when lifted 2. Fire department found that the hose from the fuel tank in to the fuel system had come loose 3. Fire department suspects that the cable was not assembled properly and could be a manufacturer defect potential faulty part details: 1. Hose is black in color 2. Hose is tucked inside a black plastic housing 3. Fire department observed no damage to the housing on my vehicle 4. Fire department heard a distinct click when they pushed the hose in to the fuel system 5. Due to #4, fire department suspects that the cable was not assembled properly and could be a manufacturer defect strongly advise volkswagen passat 2012 owners to contact their dealer to get the hose and fuel system assembly checked out and urge the federal safety agency to open a recall. Thank you.