What will be the impact of the new WLTP and RDE tests

Thomas Chieux

Publication Number: Executive Briefing 08/18

Author: Thomas Chieux

Date: August 02, 2018

Tags: New vehicles, Automotive regulation

Downloads: 18Rating:

What will be the impact of the new WLTP and RDE tests for car fuel consumption and emissions on vehicle manufacturers, consumers and repairers?
The old test for light vehicles fuel consumption in Europe – the New European Driving Cycle (NEDC) – was implemented in the 1980s (so not really ‘new’ today!) and will be progressively replaced by a new test, called the Worldwide Harmonised Light Vehicle Test Procedure (WLTP). This decision was taken by the European Union, on the basis that the NEDC test was not producing results in line with real use conditions (i.e. ‘on the road’ ones).  This element was often highlighted in the past, notably when the specialised press was reviewing new models. The trigger for this change might have been VW Dieselgate, and more generally, the suspicion of the implementation of emission optimisation processes by OEMs, when the vehicles were in test mode.
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