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News Item

Carmakers accused of inflating WLTP emissions

September 24, 2018

The European Commission has accused vehicle makers of using the transition to the new WLTP emissions standard as an opportunity to inflate values in 2020.

Brussels will use these CO2 figures as a baseline when setting new emissions reductions targets for 2025 and 2030, so inflation in the 2020 numbers would make the future goals easier to reach. "We don't like all the tricks," EU Commissioner for Climate Miguel Arias Canete told FT. "We have seen things we don't like. We are going to do all the necessary work so that the starting points are the real ones." The WLTP emissions of a particular vehicle are derived from the type approval values of the family of vehicles to which it belongs. These type approval values are produced by comparing a CO2 value declared by the manufacturer and the result of an emission measurement supervised by a type approval authority. 

The Commission's Joint Research Centre (JRC) said it had looked at 114 data sets that showed an average increase of 4.5% between th measured and declared WLTP values. As well as declaring too high values the JRC said " there is evidence of manufacturer's configuring their test vehicles in such a way that the measured WLTP emission values are inflated.

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