Yeti 103TDI lifetime average fuel consumption over 40,000km is 7.33L/100km mixed motorway and city driving. The MFD lies - I think about 10% optimistic. Fuel consumption has improved over the first 20,000km starting from mid-high 7s, presumably due to expected compression improvement with use.
With lots of short trips, I'd expect worse fuel consumption. Depends on how short the short trips are.
Are you using a cetane improver?
2015 Polo Comfortline 6M + Driving Comfort Package
2011/11 Yeti 103 TDI 6M + Columbus media centre/satnav
(2008 MY09 Polo 9N3 TDI retired hurt hail damage)
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