Runtime dependent change of CO2 emissions of light duty passenger cars A study, commissioned by the Federal Highway Research Institute Seite 1

Measurement process “0” and “15000” km 1) Preparation Data acquisition / Vehicle inspection Test fuel (Cert. EU5/6) 5) Exhaust measurement 1 NEDC 23°C Bag: CO2, CO, HC, NMHC, NOx, NO2 PM, PN (Diesel und Otto DI) Modal: CO2, CO, HC, NOx 2) Roller adaption 1 Warm Up: NEDC 1xpart 1 u. 1xpart 2 1xroller verification 6) Conditioning in Soak Area 2 12 - 36h 23 ± 2°C Battery charging 3) Pre conditioning Otto: -; Diesel: 3x part 2 NEDC 7) Exhaust measurement 2 NEDC 23°C Bag: CO2, CO, HC, NMHC, NOx, NO2 PM, PN (Diesel und Otto DI) Modal: CO2, CO, HC, NOx 4) Conditioning in Soak Area 2 12 - 36h 23 ± 2°C Battery charging Seite 2 © 2011 DEKRA Ersteller: Erik Pellmann 17.07.2019 Seite 2

Project status 25 cars were total measured in point “0 km” 13 cars were measured in point “15000 km” The rental of the cars are not easy because mainly of the following points: we need it in any case for the second point (15000 km)  no rental service can ensure this a clear history of repairs or services are necessary Seite 3 © 2011 DEKRA Ersteller: Erik Pellmann 17.07.2019 Seite 3

Test results / Interim results *1) Seite 4 © 2011 DEKRA Ersteller: Erik Pellmann 17.07.2019 *1) Only high speed motorway driving Seite 4