2015 Mondeo Trend Fuel Economy

[Quicksand]

Hi guys,

We recently purchased a near new 2015 Mondeo Trend Diesel (2.0T) with 4000km on the clock. We are very impressed with the car overall but two things are niggling at us:

-The fuel economy isn't anywhere near what is advertised. With country driving included we are lucky to get 600km out of a tank. This is especially disappointing as we sold our diesel X-Trail hoping to get better mileage and it's worse than a 2011 car. Now we know it never matches advertised mileage but this is barely half of the advertised mileage at 1100-1300km (according to Redbook)

-The start-stop system is extremely unreliable. It goes days on end without working or if it does work, the car turns off for less than ten seconds and then starts again for no apparent reason. This would be contributing a little to the fuel economy issues but not to the extent of hundreds of km's per tank

What is everyone else getting for economy in city driving, and is there any advice for the start stop issue? We will likely take it in to Ford soon which is disappointing as the Nissan was flawless for 80,000km.