London - Renault's Espace MPV released toxic diesel emissions 25 times over legal limits in a Swiss study, despite complying with EU tests carried out at unrealistically low engine temperatures, a German environmental group said on Tuesday.
The tests commissioned by the DUH group, which have not been independently verified, follows Volkswagen's admission that it used illegal “defeat devices” to cheat diesel emission regulations.
In a statement, Renault said it contested the findings of the DUH lobby group.
Environmental and consumer groups are leading calls for improved European Union tests to bring soaring car emissions of nitrogen oxides (NOx) and carbon dioxide into line with legal limits.
The DUH, which had earlier singled out Opel in tests which suggested NOx emissions on the road were higher than those measured in official testing, has turned its fire on Renault in a report commissioned from the University of Applied Sciences in Bern.