MPG Reading on dash

[Car nut]

I've noticed the MPG figures flickers up and down....

Is there a reason for this?

My wife's '58 A3 cabriolet has done this since new so I think this mY have an issue as well.

[alex160]

are you looking the currunt mpg figure? if so this will change all the time your driving, you want to view the average mpg, this gives a more relistic figure, it will go up and down though as your driving.

[navmk4gti]

thats normal mate.. there are 2 readings tho .. one gives you average milege and the other i think gives overall mpg ..which changes all the time through throttle response..

the one you want to look at has a circle symbol with a line going through it 

if i had pics id be able to explain better so ill take some tomoz morning if you like

[davetec-s]

once your on the mpg that changes quite drastically press the down button once on the stalk an it will take u to the actual mpg which will say like 34.6 instead of 137 which is more realistic lol also has a circle on the left hand side with a line through it. If u flick trough your car manual for the digital display it will tell u them all. how long u have been drivin, the miles covered in this time, average speed, average miles and the actual miles per gallon for that journey

[gaz_marshall]

I have a bit of a query about that as well. On the mpg with the circle with the line through it averages 19-40mpg- fine. The other mpg figure however shows crazy readings all the time, literally from 7mpg to 200mpg back and forth- is this normal?

[Ivor Mk4 Turbo]

I have a bit of a query about that as well. On the mpg with the circle with the line through it averages 19-40mpg- fine. The other mpg figure however shows crazy readings all the time, literally from 7mpg to 200mpg back and forth- is this normal?

Yep.  That's 'real-time' MPG.  It will change with each & every throttle adjustment.  The useful figure is the average MPG figure.

[navmk4gti]

i will never understand why VW neva put in miles to empty instead of this average crap  .. gotta get vag tech or something to do it which aint cheap 

[Ant1981]

Well some people like to know the average, it's the only way they're going to know what they are getting.

[navmk4gti]

yh but you dont need to know the other reading which changes from 7 - 200!!!!!!! depending on your throttle reponse 

[dubcruiser]

Yeah I got both (thanks to a certian member on here!! ) and I use both as well