The the cheat-diesel exhaust scandal widens. Now, Audi has admitted that even 3-liter turbo diesel engines have a dubious software. The US authorities classify this as “Defeat Device”. Are used this engine in the Audi Q7 and A8, Porsche Cayenne and VW Touareg. The software is now changed.
The US Umweltbehöre (EPA – Evironmental protection agency) had already announced on Monday (2.11.2015), that she have discovered a so-called “defeat device” even when the three-liter V6 diesel engine which improve the exhaust gas values in the test. Around 100,000 cars of the group for the years 2009 to 2014, which were equipped with the 3-liter turbo-diesel are affected according to the “Frankfurter Allgemeine Sonntagszeitung”. For customers in Europe, there is no need for action.
Audi said on Monday (23.11.2015), you will after consultation with the US environmental authorities installed software working on 3.0 diesel engines in the V6 TDI, documenting in detail and submit new for approval in the United States. The updated software will played on, as soon as it is released by the authorities. Models of the brands Audi, Porsche and VW are affected. Audi estimates the effort for a medium-sized two-digit million range.
Audi confirmed that a total of three software components as a part of the US‑Zulassungsdokumentation were not published. A so-called AECD was the temperature conditioning of the purification system. The other two it is AECD to avoid deposits of the Ad‑blue‑Dosierventil, as well as the contamination of the SCR catalyst with unburnt hydrocarbons (HC-poisoning). One is considered of which according to applicable U.S. legislation by the US authorities defeat device. It specifically is the software for the temperature conditioning of the purification system.