Dear Jan,
Which version do you have (Executive, Sport or other), I'm driving the Executive version and have the same problem with shifting between first and second gear, I've read some comments about this on this forum and the shifting will improve if you done more kilometers. I've done now 3500 km and it is improving altough I find the first gear to short. Which dealer you bought it ??, I've bought mine in Wijnegem near Antwerp.
My usage with "cheap" diesel was 8,2 ltr/100km, since I start to use Total Excellium i'm doing 7,6/100km, but not going above 130 km/ph.
Hans