Saturday, December 08, 2012

Fuel consumption: Audi A4 2.0 TDI Facelift

In 2011 Audi introduced a facelift for its current A4, internally designated as the "B8". Guitigefilmpjes has hit the road in order to see how the fuel economy is and if this engine lives up to its expectations. Technical details about this engine type can be found below:

Engine: 2.0 TDI 4-cylinder diesel engine (1968 cm³
Transmission: 6-speed manual transmission
Performance: 143hp / 320nm
0 to 100km/h: 9,5sec
Top speed: 208km/h (130mp/h)
Fuel tank (US gallons): 63 liters (16.64 US gallons)

In the picture below, the auto-start stop function (when standing still), although on the route (same as when testing the Mercedes Benz C180) did not feature many stops. The driving profile was trimmed perfectly to cut fuel consumption the most, driving almost the while trip on a secondary road at a maximum speed of 85km/h (53mp/h) with only a few stops and accelerations, combined with a few kilometers of light city traffic.  

After having drivin about 66 kilometers (41 miles) the onboard computer displayed an average consumption of 4,8l / 100km (49 mpg US). Considering that the fuel consumption for this route is specified by Audi at 4,2l / 100km, the result is 0,6l / 100km off. 

As this result has been achieved by trying to drive as economically as possible under the best circumstances (almost no braking + acceleration) I think that it is not possible to reach the figure of 4,2l /100km, but this contrast between reality and theory is normal for most car manufacturars. 

The second picture displays the average fuel consumption for several trips combined. The driving profile was divided by 45% Autobahn (fast), 5% highway, 10% inner city and 40% secondary road using the `normal` driving mode. 

After having drivin about 1898 kilometers (1186 miles) the onboard computer displayed an average consumption of 7.4l / 100km (31,8 mpg US). Considering the large part driving on the German Autobahn at fast speeds (driving the consumption up to 9,5l / 100km or 24,76mpg US), it is a acceptable average for the Audi A4 2.0 TDI Facelift.

Previous Fuel Consumption reports:

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