W212 E220 Dashboard economy meter - Wrong Scale

[brian_220CE]

I have new E class W212 E220 which is great BTW, but very small niggle. The economy graph in the dash only shows from 0 to 40 mpg, and surely Mercedes would expect a Blue Efficiency car to be able to excede 40 mpg. So why not show 0 to 50 mpg? On a recent fast journey on mainly motorways it returned an average of 44 mpg...

Had a quick look in engineering mode and couldnt see a setting to change the scale...

 

[fuzzer]

My W204 goes to 80+ and the stereo volume goes to 11