Fiat is the latest automaker to come under the scrutiny of European regulators, with Germany’s transport ministry accusing the Italian automaker of installing emissions testing defeat devices in its 500X small SUV.
The Federal Motor Transport Authority (Kraftfahrt-Bundesamt in German, or KBA for short) has reportedly discovered affected diesel 500X variants - which aren't offered for sale in Australia - are able to shut down their clean-running exhaust treatment systems after the official 20-minute emissions test cycle.
German news agency Der Spiegel claims that one tested vehicle stopped exhaust treatment after 90 minutes, while another took just 22 minutes.
An FCA Europe spokesperson said, "We are not in a position to comment on the validity or accuracy of supposed KBA internal documents or on purported emissions tests that we have never seen."
This latest emissions cheating claim comes after vehicle emissions testing has been ramped up across Europe following Volkswagen’s ‘dieselgate’ emissions scandal, which began in late 2015 and has since seen a seismic shift in European automaker’s long-term planning with regard to diesel engines as governments shy away from supporting diesel engines.
Fiat Chrysler has also faced allegations of emissions irregularities from the EPA in the United States, with diesel V6-powered Jeep Grand Cherokee and Ram 1500 models sold in North America under scrutiny for emissions performance.
In response to this latest KBA report Fiat Chrysler Europe has cited tests conducted by the Italy’s Ministry of Infrastructure and Transport (Ministero delle Infrastrutture e dei Trasporti or MIT) January 2017 which did not find any evidence of emissions defeat devices.