E46 digital average mpg not working

[Ozone]

The digital display of average mpg on my 330ci is just showing 0.0 all the time, everything else seems to work ok, it has been working without a problem up until today. Anyone got any suggestions?

[Mr Ben]

Hello mate,

Without wanting to sound patronizing have you tried just resetting it?

I'm sure it's just a case of holding down the OBC button [left hand stalk] whilst the mpg is on display.

You never know?

[Ozone]

Cheers Mr Ben
I trawled the net last night and tried that this morning and it worked
I was concerned that it didn't do anything and looking around online came up with expensive sounding faults like wheel speed sensors being faulty. I didn't know i could reset it on the stalk

Thanks for the reply