Why did you change the MAF in the first palce? What exactly does the scan say?

And the external temp reading of -5Deg.C. is significant - something is really messed up.

I get more like 900-1,000km on a tank of diesel - even more on a trip (nearly 1,300km once... the BC range value sat on "999" for nearly 300kms!)

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Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)