Mine also resets itself each journey. From memory I think that the two options I have are instant and the average for the journey. I often thought that it would be helpful to have an average over a number of journeys.
You have problems there I think as option 2 should be the average over a good few thousand miles. Option 1 is your current journey (resets if car hasnt moved for 2 hours). Option 2 should NOT be resetting itself (unless you reset it)
When in option 1 you can flick through instant MPG and current MPG for the journey. Have a proper read of the manual as its all in there.
I should have read the manual! Yes, all is working as it should! Screen 1 has either instant or avergae for the current journey (as well as other info), screen 2 (which is selected using the OK button on the MFSW) shows the average over a longer period of time - all as above really...!
