After searching I have seen several similar threads but no solution.
I reset the trip computer after picking the car up last night and when I arrived at work today it said it had done 25 miles at 26.6 mpg. The journey is actually nearly 40 miles - and the odometer had recorded about 40 miles (and the mpg would then work out at 42 - which is what I'd expect for a nice motorway cruise).
If you do the maths that's a factor of 1.6 which is the miles -> km conversion factor, it seems there is and extra conversion getting thrown in somewhere.
On the way home I switched the units to km and set the speed limit to 75KPH - car beeped when I got to 75MPH
Judging by other threads this seems a common problem - but no solutions - anyone ever come across a solution (some suggestions that speedo head replacement can fix).
All ideas welcomed.
I reset the trip computer after picking the car up last night and when I arrived at work today it said it had done 25 miles at 26.6 mpg. The journey is actually nearly 40 miles - and the odometer had recorded about 40 miles (and the mpg would then work out at 42 - which is what I'd expect for a nice motorway cruise).
If you do the maths that's a factor of 1.6 which is the miles -> km conversion factor, it seems there is and extra conversion getting thrown in somewhere.
On the way home I switched the units to km and set the speed limit to 75KPH - car beeped when I got to 75MPH
Judging by other threads this seems a common problem - but no solutions - anyone ever come across a solution (some suggestions that speedo head replacement can fix).
All ideas welcomed.