Diesel emissions fraud was not limited to one automaker or one engine. Regulators found hidden software in compact sedans, luxury SUVs, pickups and delivery vans from Germany and Detroit alike. Here are ten of the vehicles that fit that pattern, each tied to the enforcement action that named it.
1. Volkswagen Jetta: The Sedan That Passed Only the Test
EPA’s notice of violation covers the 2009-2015 Jetta TDI, whose software turned full emissions controls on only during the test. Out on the road, the sedan emitted nitrogen oxides at levels up to 40 times the standard, so the figures on the certification paperwork described a car that effectively did not exist in everyday driving.
For owners, that gap meant a diesel marketed as clean was running its controls at full strength only on a dynamometer. The same two-liter software logic appears under several other nameplates in the group, which the rest of this list works through one model at a time.
2. Volkswagen Golf: Same Engine, Same Defeat Device
Golf TDIs from 2010 through 2015, along with the 2015 Golf SportWagen, carried the same 2.0-liter defeat device, according to EPA’s model-by-model violation list. Nothing about the hatchback’s compact, practical image hinted at it, because the cheating lived entirely in engine software rather than in any visible hardware.
Shoppers who bought a Golf diesel for its fuel economy and driving range were buying an engine that behaved differently under test conditions than in traffic. Checking a vehicle identification number against the settlement lists is the only reliable way to tell whether a used example is covered.
3. Audi A3: The Lone Audi on the Two-Liter List
The 2010-2015 A3 diesel is the one Audi on EPA’s 2.0-liter violation list, sharing its engine software with the Volkswagen models around it. Audi’s premium positioning and higher sticker price did not change the underlying calibration, which treated the compact luxury hatchback exactly like a Jetta or Golf.
That makes the A3 a useful reminder that the scandal crossed brand lines inside the group. Buyers of a used A3 TDI are looking at a model that sat in the same enforcement action as its cheaper siblings, so the badge offers no shortcut around checking coverage and the status of any approved repair.
4. Volkswagen Passat: Roughly 590,000 Cars in One Decree
The consent decree lists 2012, 2013 and 2014 Passat diesels with automatic transmissions, plus 2015 Passats, among the roughly 590,000 vehicles covered, as laid out in EPA’s civil settlement summary. The same agreement carried a $1.45 billion civil penalty and a $2.925 billion mitigation trust.
The Passat is the midsize family car on the list, the kind of sedan bought for long highway commutes. Owners of the covered years faced a choice between an approved emissions modification and a buyback, and a used Passat TDI should be checked against the decree’s year and transmission details before purchase.
5. Volkswagen Beetle: Even the Beetle Was Caught
The 2013-2015 Beetle and Beetle Convertible diesels were approved for an emissions modification rather than left as-is, according to the consent decree lists. That approval mattered because it meant regulators judged the cars fixable, instead of requiring that every one of them be bought back and removed from the road.
The retro two-door seems an unlikely suspect, but the diesel Beetle used the same 2.0-liter engine family as its sedan and hatchback siblings. Owners of a covered Beetle should confirm whether the modification was already performed, since it determines eligibility for the compensation and warranty terms attached to it.
6. Volkswagen Touareg: Covered in Both Settlement Tiers
The Touareg appears twice in the 3.0-liter settlement: 2009-2012 models as Generation 1 and 2013-2016 models as Generation 2, per EPA’s 3.0-liter settlement tiers. The decree set an 85% fix target by November 30, 2019 for the first group and by May 31, 2020 for the second.
Spanning both tiers makes the SUV a nameplate caught across two generations rather than a single bad year. A buyer looking at a diesel Touareg should match the model year to the correct generation, because the approved repair and its deadline differed between the two.
7. Porsche Cayenne: The Porsche That Shared the Software
The 2013-2016 Cayenne Diesel sits in the Generation 2 group of the 3.0-liter settlement, listed in EPA’s civil settlement documents alongside the Volkswagen Touareg. Porsche’s sporting reputation did not exempt the luxury SUV from the same enforcement action as its corporate cousin.
The Cayenne shows how far a shared engine platform carried the problem, since a performance-minded luxury brand ended up in the same settlement tier as a mainstream SUV. Used-market buyers should check coverage by identification number and ask whether the approved emissions fix has been completed, because it affects both warranty and resale.
8. Ram 1500 EcoDiesel: A Pickup With Hidden Software
The Ram 1500 EcoDiesel was one of approximately 100,000 diesel vehicles spanning the Ram 1500 and Jeep Grand Cherokee in model years 2014-2016. EPA said undisclosed software made emission controls perform differently, and less effectively, on the road than in testing. FCA paid a $305,000,000 penalty.
The case moved the scandal beyond German brands and into a mainstream American half-ton pickup. For owners of a covered EcoDiesel truck, the practical step was the recall repair, which carried an 85% completion target, and anyone shopping a used example should verify that the update was applied before trusting the emissions label.
9. Ram 2500: The Heavy-Duty Record Setter
Cummins “equipped 630,000 model year 2013-2019 vehicles with illegal software defeat devices” and had undisclosed devices on about 330,000 more 2019-2023 Ram 2500 and 3500 trucks, then paid a $1.675 billion penalty, the largest civil penalty in the history of the Clean Air Act.
The scale dwarfs the passenger-car cases, and it fell on work trucks that haul and tow for a living. Owners of covered Ram 2500 diesels should check the settlement’s repair and relief terms, and fleet buyers should treat the emissions history of any used heavy-duty diesel as part of its price.
10. Mercedes-Benz Sprinter: Daimler’s Diesel Vans and Cars
Daimler’s 2020 settlement covered “more than 250,000 diesel Sprinter vans and passenger cars” sold from 2009 through 2016, according to EPA’s announcement of the settlement. It included $875,000,000 in civil penalties, with 85% of vans to be repaired within three years.
The Sprinter is the commercial workhorse on the list, which means the exposure landed on delivery fleets and tradespeople rather than commuters. Operators of a 2009-2016 diesel van should confirm that the required repair was completed, since unresolved emissions software can complicate resale and inspection.
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