I have had my 220d for two months now and covered 1500 miles I am currently averaging 42mpg it was slightly higher before the cold weather we have had of late. For the first 500 miles it was returning about 38 mpg but has risen as the miles clock up. In the main my driving to work is on country roads passing through a number of small villages which takes me about 30 mins. The style of driving I adopt is that of the criteria set by The Institute of Advanced Motorists, which is to be in the correct gear for the speed of the vehicle and to make good progress within the speed limits.
I love the car and look forward to each time I drive it, having a few discussions with the dealer at present on my contract mileage allowance but that is another story.
Merv