Bmw 320d advise

Hi Gents,

i own a 2011 320d auto and lately she is changing gears in high revs , and it jerks when going from 1st to 2nd and 2nd to 3rd after that she is fine.

i am averaging 14.7 km/l wich is very high for a 320d imo. Car is due for service in next 1000km and will bring this up with bmw. just wana know if any1 has xperienced this at all?

thanks in advanced.