diesel emissions scandal

Early in the 1950s scientists discovered that vehicle emissions were a significant factor that had been causing the air quality to deteriorate.{{Cite journal |last1=Singh |first1=Shweta |last2=Kulshrestha |first2=Monika J. |last3=Rani |first3=Nisha |last4=Kumar |first4=K. |last5=Sharma |first5=C. |last6=Aswal |first6=D. K. |date=2023-03-01 |title=An Overview of Vehicular Emission Standards |url=https://doi.org/10.1007/s12647-022-00555-4 |journal=MAPAN |language=en |volume=38 |issue=1 |pages=241–263 |doi=10.1007/s12647-022-00555-4 |issn=0974-9853 |pmc=9098155}} This led to the introduction of vehicle emissions standards in California in 1966, furthermore due to the seriousness of the problem, in 1970 the Clean Air Act was introduced in order to regulate these standards all over the United States. Eventually, other countries including European Nations, Australia, Japan and India followed suit. The United States as well as the other countries who followed were quick to act since vehicle emissions became a public health risk.{{Cite journal |last=Mott |first=Joshua A. |date=2002-08-28 |title=National Vehicle Emissions Policies and Practices and Declining US Carbon Monoxide–Related Mortality |url=http://jama.jamanetwork.com/article.aspx?doi=10.1001/jama.288.8.988 |journal=JAMA |language=en |volume=288 |issue=8 |pages=988–995 |doi=10.1001/jama.288.8.988 |pmid=12190369 |issn=0098-7484|url-access=subscription }} The introduction of these emission standards produced satisfying results, from 1975 to 1996 carbon emissions dropped 76.3% of the initial levels in 1975. Correspondingly, studies estimate that the introduction of these policies averted 19,008 deaths from 1975 to 1996.

{{main|Volkswagen emissions scandal}}

The Volkswagen emissions scandal started on 18 September 2015, when the United States Environmental Protection Agency (EPA) issued a notice of violation of the Clean Air Act to German automaker Volkswagen Group. Volkswagen had intentionally programmed turbocharged direct injection (TDI) diesel engines to activate emissions controls only during emissions testing.{{Cite web|last=US EPA|first=OAR|date=2015-10-28|title=Learn About Volkswagen Violations|url=https://www.epa.gov/vw/learn-about-volkswagen-violations|access-date=2022-01-28|website=www.epa.gov|language=en}}

In January 2017, VW pleaded guilty to the emissions scandal and agreed to pay US$4.3 billion in penalties. As of January 2019, 13 VW employees have been indicted, including former CEO Martin Winterkorn. In addition, two former executives (Oliver Schmidt and James Robert Liang) have pleaded guilty in US court and sentenced to prison terms.{{cite news |title=VW seeks damages from ex-managers for emissions scandal: report |url=https://www.reuters.com/article/us-volkswagen-emissions-damages/vw-seeks-damages-from-ex-managers-for-emissions-scandal-report-idUSKCN1P42CS |access-date=11 January 2019 |work=Reuters |date=10 January 2019 |language=en}}{{cite news |last1=Krisher |first1=Tom |title=Grand jury charges 4 Audi managers in emissions case |url=https://apnews.com/f36ca7b408e34e339164db2012961661 |access-date=18 January 2019 |work=AP Nres |agency=Associated Press |date=18 January 2019}}

The 2015 scandal was likely caused by the increasingly strict standards set, paired with the lack of technology to meet these requirements.{{cn|date=January 2024}} Moreover, another possible reason for this scandal outbreak is cost. In order for automakers to comply with these standards, they must spend from $800 up to $3,000 more per vehicle.{{Cite journal |last1=Jenn |first1=Alan |last2=Hardman |first2=Scott |last3=Carley |first3=Sanya |last4=Zirogiannis |first4=Nikolaos |last5=Duncan |first5=Denvil |last6=Graham |first6=John D. |date=2019-01-15 |title=Cost Implications for Automaker Compliance of Zero Emissions Vehicle Requirements |url=https://pubs.acs.org/doi/10.1021/acs.est.8b03635 |journal=Environmental Science & Technology |language=en |volume=53 |issue=2 |pages=564–574 |doi=10.1021/acs.est.8b03635 |pmid=30550270 |bibcode=2019EnST...53..564J |s2cid=54578128 |issn=0013-936X|url-access=subscription }} Volkswagen confessed that they could not comply with the policies in the amount of time they had when the standards became more strict in 2005.{{cn|date=January 2024}} After much analysis of the Volkswagen company, the rigging was allowed for so long due to failing internal policies.{{cn|date=January 2024}}

In July 2019, Deutsche Umwelthilfe (DUH) (German Environmental Aid) published a press release in which it states that Porsche-vehicles equipped with Audi-diesel-engines of the Euro 5 and Euro 6 emission standards exceed the limit values for nitrogen oxides ({{NOx}} ) many times over.{{Cite web|url=https://www.duh.de/presse/pressemitteilungen/pressemitteilung/kraftfahrt-bundesamt-schreitet-seit-ueber-drei-jahren-nicht-gegen-betruegerische-abgasreinigung-bei-po/|title=Kraftfahrt-Bundesamt schreitet seit über drei Jahren nicht gegen betrügerische Abgasreinigung bei Porsche und Audi Diesel-Limousinen und Diesel-SUVs ein|website=Deutsche Umwelthilfe e.V.|language=de|access-date=2019-07-04}}

The statutory {{NOx}} limit for diesel passenger cars Euro 5 is 180 mg {{NOx}}/km. The Porsche Panamera equipped with the VW-EA897 engine, made by Audi, exhibited an 8.3-fold limit violation with an average {{NOx}} emissions of 1,498 mg/km, according to DUH. According to DUH data, the measurements were made at outside temperatures between +10 and +14 °C. Two Porsche Cayenne with the EA897evo engine (Euro 6) are said to have exceeded the applicable limit of 80 mg/km {{NOx}} in normal mode by 3.6 or 4.2 times. Limits exceeding by the Cayenne in normal mode increases according to DUH in sport mode with the same driving style by two times. Also the arranged software update by the Federal Motor Transport Authority (Kraftfahrt-Bundesamt) does not prevent exceeding the limit. A tested Porsche Cayenne, emission standard Euro 6, exceeds the limit by 2.4 times at +10 to +16 °C with an average of 191 mg {{NOx}}/km after the software update. In addition, the vehicle with a carbon dioxide emissions of 179 g CO₂/km is permitted, but in real operation on the road, according to DUH, the emissions are on average 241 g CO₂/km. In addition to the diesel passenger car Audi A8 4.2 TDI with emission standard Euro 6, which according to own data was measured on average 1,422 mg {{NOx}}/km, also showed further new measurements on Audi Models High {{NOx}} Limit Exceedances. An examined Audi SQ5 plus 3.0 TDI with emission standard Euro 6, with the same engine generation (EA897evo) as the Porsche Cayenne, emits an average of 441 mg {{NOx}}/ km at outside temperatures between +4 and +11 °C. The measurements were carried out by the DUH according to the press release on the road using PEMS.

Initiated by the measurements, the DUH called on the manufacturers to publish a complete overview of all installed defeat devices for every diesel vehicle and to commit themselves to repair the diesel exhaust gas cleaning for all affected diesel buyers to help a legally compliant vehicle – or to reimburse them the full purchase price. It also announced that it will make the measurements results available to law enforcement agencies, the European Antitrust Authority and all concerned stakeholders and their lawyers. At the same time the DUH renewed their criticism of the Federal Motor Transport Authority and of Andreas Scheuer (Head of Federal Ministry of Transport and Digital Infrastructure), who according to the DUH-President on the one hand restraint documents about the detected defeat devices in the vehicles, despite final convictions for disclosure, and secondly prevent officially ordered hardware retrofits.

IAV GmbH paid a $35 million fine in the US.{{Cite web|url=https://europe.autonews.com/automakers/german-engineering-firm-iav-pleads-guilty-vw-emissions-scandal|title=German engineering firm IAV pleads guilty in VW emissions scandal | Automotive News Europe}}

Even though up to 2018 there were increasingly specific allegations of defeat devices in the control software for Mercedes-Benz U.S. cars, Mercedes-Benz denies the charges. As of June 24, 2019 Daimler insisted its diesels didn't break the law. European vehicle emissions rules were loosely written. Turning down or switching off emission controls to protect the engine in certain circumstances – such as lower temperatures – was allowed.{{cite news|url=https://www.bloomberg.com/opinion/articles/2019-06-24/mercedes-benz-isn-t-looking-too-reliable-these-days|title=Mercedes Isn't Looking Too Reliable These Days|newspaper=Bloomberg.com |date=24 June 2019 |publisher=Bloomberg|access-date=13 Oct 2019}} Earlier, Feb 2018, German newspaper Bild am Sonntag reported that US authorities investigating Mercedes have discovered that its vehicles are equipped with illegal software to help them pass United States' stringent emission tests. The claimed defeat devices include a {{em|Bit 15}} mode to switch off emissions control after 16 miles of driving (the length of an official U.S. emissions test), and {{em|Slipguard}} which tries to directly determine if the car is being tested based on speed and acceleration profiles.{{cite web|url=https://www.engadget.com/2018/02/18/daimler-illegal-software-emissions-cheating/|title=Daimler may have used software to cheat on US emissions tests|website=Engadget |date=18 February 2018 |access-date=20 June 2018}}{{cite news|url=https://www.reuters.com/article/us-daimler-emissions/software-may-have-helped-daimler-pass-u-s-emissions-tests-report-idUSKCN1G20B2|title=Software may have helped Daimler pass U.S. emissions tests: report|first=Reuters|last=Editorial|newspaper=Reuters|date=18 February 2018|publisher=|access-date=20 June 2018}}{{cite news|url=http://www.spiegel.de/wirtschaft/unternehmen/daimler-us-ermittler-belasten-autokonzern-im-diesel-skandal-a-1194095.html|title=Abgasskandal: US-Ermittler belasten Daimler schwer|newspaper=Der Spiegel |date=18 February 2018|publisher=|access-date=20 June 2018|via=Spiegel Online}}

In June 2019 Daimler recalled 60,000 Mercedes diesel powered cars in Germany, the model affected is the Mercedes-Benz GLK 220 SUV produced between 2012 and 2015, car is fitted with software aimed at distorting emissions tests. Germany's vehicle authority, the Federal Motor Transport Authority is looking to extend investigations of cheating devices reportedly used in Daimler's C-Class and E-Class OM642 and OM651 engines. The number could be as high as 700,000 vehicles.Daimler to recall 60,000 Mercedes diesels in Germany over emissions: [https://europe.autonews.com/automakers/daimler-recall-60000-mercedes-diesels-germany Daimler to recall 60,000 Mercedes diesels in Germany over emissions], access-date: 25. June 2019{{Cite web|url=https://www.bild.de/geld/wirtschaft/wirtschaft/neue-diesel-affaere-zwangsrueckruf-gegen-daimler-62796534.bild.html|title=Neue Diesel-Affäre: Zwangsrückruf für Daimler|date=22 June 2019}}

In September 2019, Daimler was fined 870 million euros in Germany for "negligent violation of supervisory duties" in relation to not fully complying with emissions regulations.{{cite news |last1=Seythal |first1=Thomas |title=German prosecutors fine Daimler almost $1 billion for breaking diesel rules |url=https://www.reuters.com/article/us-daimler-emissions-fine/daimler-to-pay-870-million-euros-fine-in-relation-to-diesel-investigation-idUSKBN1W91KW |access-date=24 September 2019 |work=Reuters |date=24 September 2019 |language=en}}

In 2022, Mercedes settled for $5.5 million in Arizona.{{Cite web|url=https://www.carscoops.com/2022/11/mercedes-will-have-to-pay-5-5-million-to-settle-cheating-diesel-case-in-arizona/|title=Mercedes Will Have To Pay $5.5 Million To Settle Cheating Diesel Case In Arizona|first=Sebastien|last=Bell|date=November 22, 2022|website=Carscoops}}

BMW was implicated in an "emissions cartel" which sought to restrict design standards for AdBlue. They were fined €875m along with VW in July 2021.{{Cite news|last1=Strauss|first1=Marine|last2=Hübner|first2=Alexander|date=2021-07-08|title=EU fines Volkswagen, BMW $1 bln for emissions cartel|language=en|work=Reuters|url=https://www.reuters.com/business/autos-transportation/eu-fines-bmw-volkswagen-group-restricting-competition-emission-cleaning-2021-07-08/|access-date=2022-01-28}}

In 2018 BMW recalled 11,700 cars which had incorrect emissions software installed to some diesel cars. The company denied using defeat devices, as suggested by the KBA.{{Cite web|last=Welle (www.dw.com)|first=Deutsche|title=German authorities order BMW to recall 11,000 cars over diesel emissions {{!}} DW {{!}} 30.03.2018|url=https://www.dw.com/en/german-authorities-order-bmw-to-recall-11000-cars-over-diesel-emissions/a-43199870|access-date=2022-01-28|website=DW.COM|language=en-GB}}

BMW was sued in 2018 when certain models were named as producing several times more nitrogen oxide emissions than laboratory tests indicated. They were accused of colluding with Robert Bosch GmbH and LLC to produce defeat software to hide the cars' true emissions.{{Cite web|last=Welle (www.dw.com)|first=Deutsche|title=BMW faces lawsuit in US over alleged emissions cheating {{!}} DW {{!}} 27.03.2018|url=https://www.dw.com/en/bmw-faces-lawsuit-in-us-over-alleged-emissions-cheating/a-43159535|access-date=2022-01-28|website=DW.COM|language=en-GB}}

Opel, a German brand then-owned by General Motors, was caught using a defeat device in Europe in 2015.

The engine software changed the engine behavior based on whether two or four wheels were rotating. In an Opel Zafira front-wheel-drive vehicle, the {{NOx}} emissions were within the 80 mg/km legal limit – but only when the vehicle was on a test stand, with the front wheels rotating and the rear wheels being stationary. When the rear, unpowered wheels were made to rotate too (which is how a front-wheel-drive vehicle behaves on the road), the {{NOx}} emission were twice the limit (cold engine) or three to four times the limit (warmed-up engine).{{Cite web|url=https://news.slashdot.org/story/16/01/18/2316233/opel-dealers-accused-of-modyfing-the-software-of-polluting-cars|title=Opel Dealers Accused of Modyfing the Software of Polluting Cars - Slashdot|date=January 19, 2016|website=news.slashdot.org}}http://www.duh.de/uploads/media/PR_High_nitrogen_oxide_emissions_Opel_Zafira_Diesel_231015.pdf {{Bare URL PDF|date=March 2022}}http://www.duh.de/uploads/media/DUH_test_report_nox_231015-unofficial_translation.pdf {{Bare URL PDF|date=March 2022}}

Despite the facts, Opel denied using defeat devices, called the tests "untrustworthy" and "incomprehensible", and one of the scientists involved in testing the car and discovering the discrepancy, Professor Jan Czerwinski from the Bern University of Applied Sciences, was pressured into issuing a statement to a news agency saying that "the facts could be distorted, incomplete or tendentious for various reasons". That was despite those tests being done according to the established (and undemanding) NEDC procedure.

Opel publicly demonstrated (while representatives from the TÜV Hessen were present) a Zafira that met the {{NOx}} emission limits.{{Cite web|url=https://www.autohaus.de/nachrichten/vorwuerfe-gegen-opel-berner-abgaspruefstelle-rueckt-von-duh-ab-1715314.html|title=Vorwürfe gegen Opel: Berner Abgasprüfstelle rückt von DUH ab|access-date=2021-02-06|archive-date=2019-07-23|archive-url=https://web.archive.org/web/20190723023243/https://www.autohaus.de/nachrichten/vorwuerfe-gegen-opel-berner-abgaspruefstelle-rueckt-von-duh-ab-1715314.html|url-status=dead}} At the same time, Opel started clandestinely pushing an engine software update that limited {{NOx}} emissions in Zafiras that were already on the road, and was caught doing so by Belgian journalists from the VRT news station. The software update dramatically lowered {{NOx}} emissions in the cars, and was installed in customers' cars during service center visits without their knowing.{{Cite web|url=https://www.vrt.be/vrtnws/en/2016/01/22/economic_inspectoratetoinvestigateopelbelgium-1-2553178|title = Economic Inspectorate to investigate Opel Belgium|date = 22 January 2016}}{{Cite web|url=https://boingboing.net/2016/01/19/gms-dieselgate-mechanics-pr.html|title=GM's Dieselgate: Mechanics privately admit software update removes crimeware from Opel cars|date=19 January 2016}}{{Cite web|url=http://deredactie.be/cm/vrtnieuws.english/videozone_ENG/1.2634631|archive-url=https://web.archive.org/web/20160819040059/http://deredactie.be/cm/vrtnieuws.english/videozone_ENG/1.2634631|archive-date=2016-08-19|title=VRT NWS: News}}{{Cite web|url=http://deredactie.be/cm/vrtnieuws.english/videozone_ENG/1.2549687|archive-url=https://web.archive.org/web/20180307190716/http://deredactie.be/cm/vrtnieuws.english/videozone_ENG/1.2549687|archive-date=2018-03-07|title=VRT NWS: News}}VRT, Dutch-language: [https://web.archive.org/web/20160119121139/http://deredactie.be/cm/vrtnieuws/economie/2.42592?eid=1.2549598 1],[https://web.archive.org/web/20160224165951/http://deredactie.be/cm/vrtnieuws/economie/2.42592?eid=1.2549870 2],[https://web.archive.org/web/20160511011239/http://deredactie.be/cm/vrtnieuws/economie/2.42592?eid=1.2563577 3],[https://web.archive.org/web/20160827014310/http://deredactie.be/cm/vrtnieuws/economie/2.42592?eid=1.2634691 4]

In 2021, Opel paid a 64.8 million euro fine in Germany.{{Cite web|url=https://europe.autonews.com/automakers/opel-pays-75m-fine-over-diesel-emissions|title=Opel pays $75M fine over diesel emissions | Automotive News Europe}}

On 12 January 2017, the EPA issued a notice of violation to Fiat Chrysler Automobiles (FCA) alleging that over 100,000 model year 2014, 2015, and 2016 diesel SUVs and trucks, including Dodge Ram 1500 and Jeep Grand Cherokee trucks, had software that allowed them to exceed {{NOx}} pollution limits, undetected by the usual testing methods. The EPA discovered this during their expanded vehicle tests following the Volkswagen case. FCA was not accused of intentionally cheating on emissions testing, though the EPA did accuse the company of failing to notify the government of the defeat device programming. The US Justice Department was assisting the EPA in their investigation, suggesting the possibility of criminal charges. This is all while FCA executives were hopeful that after the inauguration of President Donald Trump it would be possible to "work with the new administration to try and get this issue behind us", according to FCA CEO Sergio Marchionne.{{Citation |url= https://www.usatoday.com/story/money/cars/2017/01/13/how-fiat-chryslers-diesel-woes-differ-vw-scandal/96549918/ |newspaper=Detroit Free Press |agency=USA Today |title= How Fiat Chrysler's diesel woes differ from VW scandal |first=Brent |last= Snavely |date= January 13, 2017 }}{{Citation |title= EPA Notifies Fiat Chrysler of Clean Air Act Violations; FCA allegedly installed and failed to disclose software that increases air pollution from vehicles |date=January 12, 2017 |publisher=United States Environmental Protection Agency |first=Julia P. |last= Valentine |url= https://www.epa.gov/newsreleases/epa-notifies-fiat-chrysler-clean-air-act-violations }} Executives denied any wrongdoing but started to make extensive changes to their vehicle software to address the EPA's concerns.{{cite news |url=https://www.washingtonpost.com/news/innovations/wp/2017/01/12/epa-fiat-chrysler-used-software-to-cheat-on-emissions-tests/ |title=EPA: Fiat Chrysler used software to cheat on emissions tests |first1=Steven |last1=Overly |first2=Brady |last2=Dennis |newspaper=The Washington Post |date=12 January 2017 |access-date=12 January 2017}}

As part of a January 2019 settlement, Fiat Chrysler recalled and repaired approximately 100,000 automobiles equipped with a 3.0-litre V6 EcoDiesel engine having a prohibited defeat device, pay $311 million in total civil penalties to US regulators and CARB, pay $72.5 million for state civil penalties, implement corporate governance reforms, and pay $33.5 million to mitigate excess pollution. The company will also pay affected consumers up to $280 million and offer extended warranties on such vehicles worth $105 million. The total value of the settlement is worth about $800 million, though FCA did not admit liability, and it did not resolve an ongoing criminal investigation.{{cite news |last1=Shepardson |first1=David |title=Fiat Chrysler agrees to $800 million U.S. diesel-emissions settlement |url=https://www.reuters.com/article/us-fiatchrysler-emissions/fiat-chrysler-agrees-to-u-s-diesel-emissions-settlement-worth-nearly-800-million-idUSKCN1P41WV |access-date=11 January 2019 |work=Reuters |date=10 January 2019 |language=en}}

In October 2020, Fiat Chrysler faced a £5 billion class-action lawsuit in the UK due to over half a million Fiat, Alfa Romeo, Jeep, Iveco and Suzuki vehicles having these defeat devices.

In connection with the mentioned software, Emanuele Palma, a diesel drivability and emissions senior manager at Fiat Chrysler, was charged with one count of conspiracy to defraud the United States, to violate the Clean Air Act and to commit wire fraud. Palma was also charged with six counts of violating the Clean Air Act, four counts of wire fraud and two counts of making false statements to representatives of the FBI and the EPA's Criminal Investigation Division (EPA-CID).{{cite news |last1=Spector |first1=Mike |last2=Shepardson |first2=David |title=Fiat Chrysler manager lied about emissions even after VW scandal broke, indictment charges |url=https://www.reuters.com/article/us-fiat-chrysler-emissions/fiat-chrysler-senior-manager-charged-in-diesel-emissions-probe-court-document-idUSKBN1W9217 |access-date=24 September 2019 |work=Reuters |date=24 September 2019 |language=en}} On 3 March 2021, Sergio Pasini and Gianluca Sabbioni, two Italian nationals and alleged co-conspirators of Palma, were indicted.{{cite press release|url=https://www.justice.gov/opa/pr/two-senior-managers-italy-charged-conspiracy-cheat-us-emissions-tests-and-defraud-us|title=Two Senior Managers in Italy Charged with Conspiracy to Cheat U.S. Emissions Tests and Defraud U.S. Consumers|date= 20 April 2021|access-date=20 April 2021|publisher=U.S. Department of Justice – Office of Public Affairs}}

In 2022 FCA US, formerly Chrysler Group, pleaded guilty to one count of conspiracy to defraud the US, commit wire fraud, and to violate the Clean Air Act.{{cite press release|url=https://www.justice.gov/opa/pr/fca-us-llc-sentenced-connection-conspiracy-cheat-us-emissions-tests|title=FCA US LLC Sentenced in Connection with Conspiracy to Cheat U.S. Emissions Tests|date=August 1, 2022|access-date=August 8, 2022}}

Jeep, also manufactured by Fiat Chrysler Automobiles, was tested by the consumer group Which? and in March 2017 found to produce {{val|1.74|u=g|up=km}} {{NOx}} compared to the 2009 European emission standards Euro 5 legal limit of {{val|0.18|u=g|up=km}}.{{Cite web|title=Emission Standards: Europe: Cars and Light Trucks|url=https://dieselnet.com/standards/eu/ld.php|access-date=2020-11-26|website=dieselnet.com}} High level of pollutants were emitted by Jeep Grand Cherokee when its engine was hot.{{Cite news|last=Sterling|first=Toby|date=2017-07-10|title=Jeep, Suzuki may have violated emissions rules: Dutch watchdog|language=de|work=Reuters|url=https://de.reuters.com/article/us-volkswagen-emissions-netherlands-idUSKBN19V1EL|access-date=2020-11-26}}{{dead link|date=July 2021|bot=medic}}{{cbignore|bot=medic}}

In December 2023, Cummins was fined $1.675 billion by the U.S. Justice Department for violations of the Clean Air Act.{{cite news |title=Cummins to pay record-setting $1.675 billion US environmental fine|first=David |last=Shepardson |work=Reuters |url=https://www.reuters.com/business/autos-transportation/cummins-take-about-204-bln-charge-fourth-quarter-2023-12-22/ |date=December 22, 2023 |access-date=December 22, 2023}} Cummins was found to have installed devices designed to bypass or disable emissions controls on 960,000 Dodge and Stellantis RAM pickup truck diesel engines between 2013 and 2023.{{Cite web |last=Panait |first=Mircea |date=2023-12-23 |title=Cummins 6.7L Turbo Diesel Emissions Scandal: Engine Manufacturer Agrees To Pay Record Fine |url=https://www.autoevolution.com/news/cummins-67l-turbo-diesel-emissions-scandal-engine-manufacturer-agrees-to-pay-record-fine-226558.html |access-date=2023-12-26 |website=autoevolution |language=en}} It will also pay $325 million in remedies and recalls.{{Cite web|url=https://ca.finance.yahoo.com/news/cummins-recall-600-000-diesel-171800902.html|title=Cummins to Recall 600,000 Diesel Ram Trucks Following $2 Billion Emissions Penalty|date=January 11, 2024|website=Yahoo Finance}}

Renault issued press statements reaffirming their vehicles' compliance with all regulations and legislation for the markets in which they operate in 2015.{{Citation | url=http://news.sky.com/story/1558200/vw-emissions-scandal-motor-industry-reaction| title=VW Emissions Scandal: Motor Industry Reaction| work=Sky News| publisher=Sky (United Kingdom)| access-date=1 October 2015}}

Headquarters of Renault and Peugeot were raided by fraud investigators in January and April 2016, respectively. Renault subsequently recalled 15,000 cars for emission testing and fixing.{{cite news |url=https://www.theverge.com/2016/1/19/10789162/renault-recall-15000-cars-emissions-probe-vw |title=Renault to recall 15,000 vehicles for emissions tests in wake of VW scandal |first=Amar |last=Toor |work=The Verge |date=19 January 2016 |access-date=20 January 2016}}{{cite news |title=Renault to modify 15,000 new cars in emission scare |url=https://www.bbc.com/news/business-35350474 |publisher=BBC News |location=UK |date=19 January 2016 |access-date=21 January 2016}}{{cite news |url=https://www.bbc.com/news/business-36106783 |title=Renault to modify 15,000 new cars in emission scare |publisher=BBC |location=UK |date=19 January 2016 |access-date=22 April 2016}}

Since 2015, Renault has been investigated by the French Direction générale de la concurrence, de la consommation et de la répression des fraudes (DGCCRF). Their 2017 report states "the suspicion of the installation of a 'fraudulent device' which specifically modifies the functioning of the engine to reduce emissions of {{NOx}} (nitrogen oxides) in conditions specific to the regulatory tests." It affects 900,000 vehicles. Renault Captur and Clio IV exceeded the threshold for carbon dioxide emissions by 377% and 305%.{{cite web |url=https://www.connexionfrance.com/French-news/Renault-in-emissions-test-fix-report |title=Renault in emissions test fix report |website=The Connexion |date=15 March 2017 |last1=France |first1=Connexion }}

In 2019, Renault's Clio and Captur diesel models were found to emit more pollutants outside of official test conditions, their exhaust treatment did not work in everyday use when the outside temperature range was below or above those covering official tests.{{cite news |last1=Patel |first1=Tara |last2=Nussbaum |first2=Ania |title=Renault Investors Rattled by Report on Faulty Car Emissions |url=https://www.bloomberg.com/news/articles/2019-05-13/renault-s-anti-pollution-systems-found-to-be-faulty-monde-says |access-date=6 November 2019 |work=www.bloomberg.com |date=13 May 2019}} Furthermore, their "{{NOx}} trap" devices did not run cleaning cycles below {{convert|50|kph|mph}}, causing those filters to clog and become ineffective.{{cite news |title=Renault diesel allegations upheld by court study: report |url=https://www.reuters.com/article/us-renault-emissions/renault-diesel-allegations-upheld-by-court-study-report-idUSKCN1SJ15E |access-date=6 November 2019 |work=Reuters |date=13 May 2019 |language=en}}

In September 2015 Renault-Nissan CEO Carlos Ghosn said it would be difficult for an automaker to conceal internally an effort to falsify vehicle emissions data, as happened at Volkswagen AG: "I don't think you can do something like this hiding in the bushes."{{cite news|url=https://www.reuters.com/article/us-usa-volkswagen-ghosn-idUSKCN0RM2TK20150922 |title=Nissan CEO says it would be hard to hide any effort to falsify emissions data|work=Reuters }}

In May 2016, South Korean authorities accused Nissan of using a defeat device for manipulating emissions data for the British-built Nissan Qashqai, allegations which the Japanese carmaker denied.{{cite news |url=http://www.abc.net.au/news/2016-05-17/nissan-faces-fine-for-emissions-cheating-in-south-korea/7419730 |title=Nissan to be fined over $380,000 for emissions cheating in South Korea, environment ministry says |publisher=Australian Broadcasting Corporation |date=16 May 2016 |access-date=19 May 2016}}

In March 2017, Nissan vehicles tested by Which? were found to produce {{val|0.81|u=g|up=km}} {{NOx}} compared to the 2009 European emission standards Euro 5 legal limit of {{val|0.18|u=g|up=km}}.{{citation needed|date=February 2020}}

A class-action lawsuit was filed against Toyota in 2019 in Australia, alleging that a total of 264,170 Toyota vehicles sold in the country had been fitted with defective diesel particulate filters. In April 2022, the Federal Court of Australia found that the diesel particulate filters in these vehicles were not of acceptable quality and that Toyota had engaged in "misleading or deceptive conduct" in marketing and selling the affected vehicles. After appeal, the Federal Court upheld its ruling in 2023.{{cite web |last1=Nicholson |first1=Tim |title=Toyota DPF class action update! Company loses appeal as impacted HiLux, Prado and Fortuner owners wait for damages |url=https://www.carsguide.com.au/car-news/toyota-dpf-class-action-update-company-loses-appeal-as-impacted-hilux-prado-and-fortuner |website=CarsGuide |publisher=Carsguide Autotrader Media Solutions Pty Ltd |access-date=11 February 2024 |date=2023-03-29}}{{cite web |last1=Purcell |first1=Sam |title=Toyota class action on DPFs: Everything you need to know |url=https://www.drive.com.au/caradvice/toyota-class-action-on-dpfs-everything-you-need-to-know/ |website=drive.com.au |access-date=11 February 2024 |date=2023-04-11}}

In 2022, a class-action lawsuit was launched against Toyota Australia, claiming that up to 500,000 Toyota vehicles sold in Australia since February 2016 contained emissions defeat devices.{{cite web |last1=Affat |first1=Alex |title=Toyota being sued over claims of emissions defeat devices |url=https://www.whichcar.com.au/news/toyota-emissions-defeat-devices |website=Which? Car |publisher=Wheels Media |access-date=11 February 2024 |date=2022-10-18}}

In January 2024, Toyota temporarily suspended shipments of over 10 vehicle models after discovering irregularities for certification tests for a number of its diesel engines. Production vehicles had used different electronic control units than those used during horsepower testing. The company stated it had sold about 84,000 vehicles with the affected engines during 2023, but didn't disclose total lifetime sales of the affected vehicles.{{cite web |title=Toyota halts shipment of 10 models over diesel engine testing issues |url=https://edition.cnn.com/2024/01/29/business/toyota-halts-shipment-japan-intl-hnk/index.html?ref=upstract.com |website=CNN |publisher=Cable News Network |access-date=11 February 2024 |date=2024-01-29}}

In 2021, Mitsubishi paid a 25 million euro fine in Germany.{{Cite web|url=https://www.bfmtv.com/economie/entreprises/dieselgate-mitsubishi-motors-a-paye-une-amende-de-25-millions-d-euros-en-allemagne_AD-202107120029.html|title=Dieselgate: Mitsubishi Motors a payé une amende de 25 millions d'euros en Allemagne|website=BFM BUSINESS|date=12 July 2021 }}

In 2019, Bosch paid a 90 million euro fine in Germany.{{Cite web|url=https://www.dw.com/en/bosch-pays-90-million-euro-fine-over-diesel-scandal/a-48843405|title=Bosch pays 90-million-euro fine over diesel scandal – DW – 05/23/2019|website=dw.com}}

In 2022, Bosch paid a $25 million fine in California.{{Cite web|url=https://www.motor1.com/news/620627/bosch-pay-25-million-california/|title=Bosch Agrees To Pay $25M To Resolve Diesel Emissions Scandal In California|website=Motor1.com}}

In 2022, Bosch settled for $525,000 in Arizona.

===ZF Friedrichshafen===

In 2020, ZF Friedrichshafen paid a 42.5 million euro fine in Germany.{{Cite news|url=https://www.spiegel.de/wirtschaft/unternehmen/diesel-abgasmanipulation-autozulieferer-zf-muss-millionen-bussgeld-zahlen-a-de66abf8-4b33-42e4-847d-9f8d1abeae86|title=Autozulieferer ZF muss wegen Diesel-Abgasmanipulation Millionen zahlen|newspaper=Der Spiegel |date=June 10, 2020|via=www.spiegel.de}}

In December 2023, Cummins was fined $1.675 billion by the U.S. Justice Department for violations of the Clean Air Act. Cummins was found to have installed devices designed to bypass or disable emissions controls on 960,000 Dodge and Stellantis RAM pickup truck diesel engines between 2013 and 2023. It will also pay $325 million in remedies and recalls.

{{main|Defeat device}}

The Volkswagen TDI diesel emissions case is not the first use of defeat devices by Volkswagen or other automakers nor the first time automakers have taken advantage of their foreknowledge of the specific lab test conditions in order to engage emissions controls only during testing, but not during normal driving.

In 1973 Chrysler, Ford, General Motors, Toyota, and Volkswagen had to remove ambient temperature switches which affected emissions, though the companies denied intentional cheating and said that strategies like enriching fuel mixture during cold engine warm-up periods could reduce overall pollution. The switches were ordered to be removed from production but cars already on the road did not have to be recalled, and fines were relatively modest.

In 1996, GM had to pay a near-record fine of $11 million, and recall 470,000 vehicles, because of ECU software programmed to disengage emissions controls during conditions known to exist when the cars were not being lab tested by the EPA. The model year 1991–1995 Cadillacs were programmed to simply enrich the engine's fuel mixture, increasing carbon monoxide (CO) and unburned hydrocarbon (HC) pollution, any time the car's air conditioning or heater was turned on, since the testing protocol specified they would be off.

In 1996, Fiat of Brazil paid a record fine because of the Fiat Mille Electronic, a very popular version of the Fiat Uno with a 1.0-litre engine. They sold 500,000 vehicles with a combination of carburettor and digital ignition that uses different strategies for laboratory or street driving conditions.{{citation needed|date=June 2016}}

In 1998, Honda Motor Company had to spend $267 million to correct the disabling of the misfire monitoring device on 1.6 million 1996 and 1997 model year vehicles, and Ford Motor Company paid $7.8 million for programming 60,000 1997 Ford Econoline vans to exceed emissions standards during normal highway cruising speeds.

A timer-based strategy was used by seven heavy truck manufacturers, Caterpillar Inc., Cummins Engine Company, Detroit Diesel Corporation, Mack Trucks, Navistar International, Renault Véhicules Industriels, and Volvo Trucks, who in 1998 paid the largest ever fine to date, $83.4 million, for, in the same manner as Volkswagen, programming trucks to keep {{NOx}} emissions low during the test cycle, and then disabling the controls and emitting up to three times the maximum during normal highway driving.

The goal of both the Ford and the heavy truck defeat devices was better fuel economy than could be achieved under pollution limits. The major truck manufacturers also had to spend up to $1 billion to correct the problem, which affected 1.3 million heavy duty diesel trucks.

While Volkswagen's actions have precedents, the Center for Auto Safety's Clarence Ditlow said that Volkswagen "took it to another level of sophisticated deception we've never seen before."

In May 2017, the 28 EU member states agreed to begin negotiations with EU institutions to revise the method of testing vehicle emissions towards real circumstances, with random testing of vehicles on the roads and fines for manufacturers who breach the rules.{{cite web |url=http://www.brusselstimes.com/eu-affairs/8347/dieselgate-the-28-agree-to-revise-the-vehicle-licensing-act |title=Dieselgate: the 28 agree to revise the Vehicle Licensing Act |work=The Brussels Times |date=29 May 2017}}

Eben Moglen has suggested in 2010 to make proprietary software source code in general accessible to the public, to curb cheating.[https://www.wired.com/2015/09/volkswagen-open-iot/ VW's Cheating Proves We Must Open Up the Internet of Things], Klint Finley, Wired, 24 September 2015.{{cite news |url=https://www.nytimes.com/2015/09/23/nyregion/volkswagens-diesel-fraud-makes-critic-of-secret-code-a-prophet.html |title=Volkswagen's Diesel Fraud Makes Critic of Secret Code a Prophet |work=The New York Times |date=22 September 2015}}

• Business action on climate change
• Diesel particulate filter
• Diesel exhaust fluid
• ExxonMobil climate change controversy
• Greenwashing
• NOx adsorber – a system to trap oxides of nitrogen used by Volkswagen "Clean Diesel" cars

{{reflist|30em|refs=

{{Citation |date= 27 September 2015 |title=Carmakers cheating on emissions almost as old as pollution tests |url= http://www.dailyherald.com/article/20150927/business/150929346/ |newspaper=Daily Herald |first1= Jeff |last1= Plungis |agency=Bloomberg News }}

{{Citation |title= Auto makers and EPA split victories on '73 vehicles |newspaper=Chronicle-Telegram |date= 22 January 1973 |publisher={{Subscription required|via=Newspaperarchive }} }}

{{Citation |title=Defeat Devices Must Go |agency=United Press International |newspaper=The News Herald |date=23 January 1973 |publisher={{Subscription required|via=Newspaperarchive }} }}

{{cite journal |url= http://autoweek.com/article/car-news/vw-emissions-defeat-device-isnt-first |title= VW emissions 'defeat device' isn't the first |date= 24 September 2015 |journal=AutoWeek |access-date= 26 September 2015 }}

{{cite press release |url= http://www2.epa.gov/enforcement/mack-trucks-diesel-engine-settlement |title= Mack Trucks Diesel Engine Settlement |date= 22 October 1998 |publisher= United States Environmental Protection Agency |access-date= 31 March 2017 |archive-date= 2 October 2015 |archive-url= https://web.archive.org/web/20151002043823/http://www2.epa.gov/enforcement/mack-trucks-diesel-engine-settlement |url-status= dead }}

{{cite press release |url=http://www2.epa.gov/sites/production/files/2014-06/documents/defeat.pdf |first=David E. |last=Alexander |publisher=United States Environmental Protection Agency |title=Clean Air Act Prohibits 'Defeat Devices' in Vehicles, Engines; Honda to Spend $267 Mil, Ford $7.8 Mil. to Settle Charges |date=August 1998 |access-date=2017-03-31 |archive-date=2020-04-14 |archive-url=https://web.archive.org/web/20200414112155/https://www.epa.gov/sites/production/files/2014-06/documents/defeat.pdf |url-status=dead }}

{{Citation |title=Cadillacs Recalled To Remove Illegal Device |newspaper=The Buffalo News |location=Buffalo, New York |first1= Laura |last1=Myers |agency=Associated Press |publisher= |url= http://www.highbeam.com/doc/1P2-22769367.html |archive-url= https://web.archive.org/web/20151015230817/http://www.highbeam.com/doc/1P2-22769367.html |url-status= dead |archive-date= 15 October 2015 |date=1 December 1995 }}

}}{{Corporate scandals}}

Category:2015 in the environment

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Emissions violations

Emissions violations