It doesn’t look like the dieselgate mess is going to be cleared up any time soon, as Porsche has now been dragged into the argument.
With Audi recently having been collared over allegations of steering angle-based emissions defeat devices, Germany’s Ministry of Transport has now ordered an investigation into the Cayenne V6 diesel.
Major national newspaper Der Spiegel has reported that its own test suggests the model’s nitric oxide emissions break the legal limit, but Porsche says its own tests disagree, calling the newspaper’s findings ‘implausible’. It’s all a bit he-said-she-said, hence the official investigation.
In a statement the Stuttgart-based firm said:
“Der Spiegel has conducted joint tests with TUV Nord on a Porsche Cayenne V6 TDI (Euro 6) and has reported on its findings in its latest edition. Porsche has obtained extracts of these results and considers them to be implausible.
“As a result of the Der Spiegel test, Porsche has conducted tests on a comparable Cayenne V6 TDI (Euro 6). The tests found that the vehicle was compliant with the legally stipulated nitric oxide limit values. Furthermore, Porsche has offered to conduct joint tests, but Der Spiegel has not accepted this offer.
“Porsche cooperates fully with the authorities. We also liaise with the German Federal Motor Transport Authority (KBA) on all current issues.
“As the regulatory emissions authority responsible for the homologation of our vehicles, the KBA confirmed to us that the EU6-certified Cayenne V6 TDI vehicle model referenced by Der Spiegel is compliant with regulations. We provided the KBA with the information regarding the functions of the Cayenne V6 TDI that relate to emissions certification and will continue to take this approach.”