Welcome!! Congrats on the purchase! My bro-in-slaw bought the exact same spec vehicle in a certain blue colour. He also experienced the same fuel consumption and returned the vehicle to the dealership as the fuel consumption was nothing as the book quoted. Dealership gave him a great deal on a 520d afterwards as good will for the lemon X1. Drive a bit more and see and if still no change then check with dealership again, run diagnostics etc
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