The consumption indicator in the instrument
cluster is not a calibrated instrument.
Therefore, the consumption cannot be exactly
deduced by refuelling. Deviation due to the
individual switch-off behaviour of the petrol
pump nozzle and the temperature related
expansion behaviour of fuel and tank as well as
a slightly sloping position of the
vehicle may have an influence on measurement.
The consumption figures published by the media,
sales brochures and in owner's manuals
are determined based on the ADR fuel consumption
measurement. It defines, for example,
reproducible conditions on a pre-established
driving cycle that represents both city and
highway driving conditions, and is simulated on
a roller dynamometer.
The consumption claims based on the mentioned
ADR directive are figures ascertained
under precisely defined conditions in order to
make them comparable amongst competitors.
However, you will not experience these
conditions in day-to-day operation, so the
comparison must be critically assessed right
from the start.
Driving style, road conditions, environmental
influences, vehicle conditions and
accessories fitted, will mean fuel consumption
figures will generally differ from those
advertised. Advertised figures are meant for
comparison of vehicles only.
If there remains a suspicion of a vehicle
defect, please contact the service department
at your local Volkswagen