The judicial investigation into diesel-test fixing in France has widened from Renault to Citroën, according to French daily Le Parisien. It reports that is has seen a copy of a study implicating the brand.
The study by the Joint Research Center laboratory, which is linked to the European Commission, found that a Citroën C4 Cactus diesel made by the PSA Group produces emissions much higher than allowed. Outdoor road tests of the Cactus BlueHDi 100 in Spain and Italy show the vehicle emits up to 585mg of nitrogen oxide (NOx) per kilometre, more than seven times the maximum 80mg/km allowed by EU emissions rules.
A PSA Group spokesman said they were ‘surprised by these results’, which they ‘had not been informed’ about, and ‘whose format we are not familiar with.’
Referring to emissions tests ordered by the French government last year following the Volkswagen emissions scandal, the company added that: ‘Similar vehicles, equipped with the same engine, have been tested by French authorities and obtained results that were perfectly in line with regulations, in particular under outdoor driving conditions.’
In addition, the French newspaper says that under laboratory conditions outside of the normal test temperatures of 17-23°C, three times the permitted NOx emissions were produced.
PSA Group sent Vice President Christian Chapelle to Ispra in Northern Italy for a meeting Tuesday with the European Commission’s Joint Research Center to explain the suspicious results of a study on Citroën’s C4 Cactus Blue HDI 100.
The study was conducted over the summer in Italy and Spain, and provided to the manufacturer in December. According to Le Parisien, PSA Group denied it had used software to cheat on its emissions claims, but did not provide an explanation for the results.
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