I had hoped that the upgrade to v13.2 would address the outrageous readings I get for fuel economy vs. reality. Unfortunately on both tanks of gas, the trip computer estimated fuel economy at 37.1 MPG (in your dreams maybe) vs the 28.5 actual (not all that bad for avg speed of 75 MPH in a 530 -- but could be better).

The real issue is if it can't come any closer than that, why have it in the first place. Naturally, my "miles to empty" are wildly overstated. I've had trip computers going back 15 years that were never off by more than .5 mpg -- what gives with BMW?

In an earlier thread, someone mentioned that their e60 computer was set for the British gallon (?), which caused the inflated readings. That seems backwards to me -- if the computer thought I was using a larger unit of measure, the reading would have been lower mpg, not higher.

Anyway, anyone else have this problem, and if so, is there a fix that I can pass on to my clueless service dept?

 

i got like 32.8 mpg on a drive from PA to VA yesterday, average cruising of 80 mph on I-95. the miles to empty seemed accurate for me.

or maybe...all these are BMW's illusionary tactics!