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Diesel gate : La commercialisation du Porsche Cayenne Diesel suspendue…

Diesel gate : La commercialisation du Porsche Cayenne Diesel suspendue…

Ce jeudi en fin de journée, Alexander Dobrindt, le ministre allemand du Transport et des Infrastructures numériques vient de taper fermement sur la table et encore plus sur la « tête » de Porsche en ordonnant le rappel de quelques 22.000 véhicules de la firme de Stuttgart après la découverte d’un système dit tricheur qui permet de minimiser le niveau […]

Cet article Diesel gate : La commercialisation du Porsche Cayenne Diesel suspendue… est apparu en premier sur The Automobilist.

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Porsche CEO: Diesel Cayenne Emissions Fix Is In, Awaiting Approval from CARB, EPA

2013-porsche-cayenne-diesel-photo-510680-s-986x603

While the diesel-emissions scandal focus has largely focused on Volkswagen these past few months, remember that both Porsche and Audi are also swept up in the controversy thanks to a shared, non-emissions-compliant 3.0-liter diesel V-6. At the 2016 Detroit auto show, Porsche’s CEO Oliver Blume outlined in general terms his brand’s proposed fix to bring the diesel six into compliance, which was submitted to the EPA and California Air Resources Board (CARB) back in December. According to Reuters, the CEO said the fix was in, but Porsche was simply waiting to see whether the EPA and CARB would accept it.

Mr. Blume didn’t go into specifics regarding the fix, which would be applied to 2013–2016 model-year Cayenne diesels, but claimed that a hardware change would be required on fewer than half of the 13,000 affected vehicles. Even so, it seems only the catalytic converter would need to be swapped out (in addition to an engine-software reflash) on 2013 and 2014 Cayenne Diesel models. Only an engine-software tweak is needed to bring 2015 and 2016 versions into compliance. Mr. Blume’s remarks did not touch on whether the same fix would apply to the diesel-powered versions of the Cayenne’s close sibling, the Audi Q7 (which use the same engine), but given that Audi came up with the fix for Porsche, we suspect that will be the case.

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Affaire VW : Porsche USA suspend la vente des Cayenne diesel

zoomUne annonce officiellement mise en ligne par Porsche Cars North America Inc va à l’encontre d’un communiqué publié hier par le groupe Volkswagen. En cause ? Le V6 diesel 3.0 l. Hier un nouveau lièvre, un de plus, était levé dans ce qu’on appelle depuis le départ l’affaire VW. Selon l’agence américaine de l’environnement, un […]

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EPA: VW Guilty of Second Violation for V-6 Diesels, Including VW, Porsche, and Audi TDIs

2015 Volkswagen Touareg TDI

The Environmental Protection Agency has accused Volkswagen of violating the Clean Air Act a second time as it named six late-model vehicles, including those from Audi and Porsche, with so-called “defeat device” software designed to skirt federal emissions laws.

The 2014 Volkswagen Touareg TDI, 2015 Porsche Cayenne diesel, and 2016 Audi A6, A7, A8, A8L, and Q5 TDI models were cited today in a separate violation from the company’s 482,000 noncompliant 2009–2015 diesels announced by the EPA on September 18. There are roughly 10,000 Touareg and Cayenne models affected and an “unknown volume” of 2016 Audi models.

Volkswagen previously said it had withdrawn EPA certification for all 2016 diesels since it did not disclose an “auxiliary emissions-control device (AECD)” on the applications. During three lab tests, including some conducted by the California Air Resources Board and Environment Canada, the EPA said these cars—all with 3.0-liter V-6 diesel engines—emit up to nine times the allowable nitrogen-oxide (NOx) emissions when the software detects the vehicle is not being tested. In comparison, the 2.0-liter four-cylinder diesel models expel between 10 and 40 times the allowable NOx emissions.

2013-porsche-cayenne-diesel-photo-520172-s-986x603

Specifically, the FTP 75 (federal emissions test procedure) runs for 1370 seconds, and “exactly one second” later, the EPA said the software switched from a “temperature conditioning” mode to a “normal mode”—allowing for “different injection timing, exhaust gas recirculation rate, and common-rail fuel pressure.” When the vehicle runs without sensing any test procedure, the “temperature conditioning” mode is never activated even when cold, the agency aid.

Such software is common and completely legal during cold startups, at which point automakers must “light off” the catalytic converter as quickly as possible to gain acceptable emissions levels. In VW’s instance, the “temperature conditioning” mode directed the exhaust to run hot in order to heat the selective catalytic-reduction system—which includes two catalytic converters and urea injection—so they could better reduce NOx. That would have been fine. However, Volkswagen violated the law by not disclosing this software to the EPA and by employing code that explicitly switched the car’s emissions system from a bench-testing mode that actually outperformed federal standards to allowing dirtier emissions under regular conditions.

Volkswagen has not yet responded. The EPA has also not issued formal penalties nor has the National Highway Traffic Safety Administration conducted any recalls related to these diesel models.

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Official: Porsche Cayenne S Diesel by TechArt

For understandable reasons, most tuning companies only focus on improving and upgrading petrol powered performance cars. However, TechArt isn’t like most tuning companies and has consequently taken the wraps off their latest power kits for the Porsche Cayenne Diesel S. … Official: Porsche Cayenne S Diesel by TechArt More news at
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