Testing procedure changes

Like NEDC (New European Driving Cycle), WLTP is a laboratory based testing procedure. There are some key differences with WLTP to provide consumption and emissions values that better reflect real world performance. The advantage of laboratory tests is that they are carried out in controlled conditions. This enables customers to gain a true comparative view between vehicle models.

Conditions
NEDC
WLTP
Test duration 20 min. 30 min.
Test distance 11 km 23.5 km
Time spent stationary
25%
13%
Test phases
Urban/Extra-urban, (combined)
Low, Medium, High, Extra high, (Combined); (plus “City” for electric vehicles and vehicles with plug-in hybrid drivetrain)
Speed
Average: 34 km/h
Maximum: 120 km/h
Average: 46.6 km/h
Maximum: 131 km/h
Temperature
20-30° C
Cold engine start
14° C (tested at 23° C corrected for 14° C)
Cold engine start
Special equipment options
Not taken into consideration
All equipment options are considered in terms of their influence on aerodynamics, weight and rolling resistance.
 

Source: http://wltpfacts.eu