[n00b0rKa]

Hello everyone!

So I recently switched from an Opel Zafira to an E90 and I'm pretty happy with it, but I'm missing one thing a lot: the ability to display the absolute fuel consumption (in liters) somewhere.

I have a 2005 E90 325i with navi (M-ASK), but I just can't get it to show the absolute value of fuel consumed. Even my older Zafira (from 2000) had this function, and I'd need it a lot, because I'm currently counting the ticks on the fuel gauge and estimating from my total tank capacity. I need this because I do a lot of official trips for my organisation and I need to account for the fuel I used.

Isn't there somewhere a hidden digital readout of the amount of fuel consumed since the last reset of the counter, or maybe a coding option somewhere? I couldn't find anything related on the internet, any help is appreciated.

Have a nice day, nbK

[jt335i]

On those older iDrive CCC models, don’t think it is possible, but I could be wrong.
Why don’t you just note the total amount of liters on the pump display when you stop to refuel? It may not be 100% accurate, but its close enough.

[n00b0rKa]

Originally Posted by jt335i

On those older iDrive CCC models, don’t think it is possible, but I could be wrong.
Why don’t you just note the total amount of liters on the pump display when you stop to refuel? It may not be 100% accurate, but its close enough.

Because I don't always refuel when I leave or arrive back from a journey, and I find it too easy to mess up. I'm sad to hear this, in my head this shouldn't even be an iDrive function, rather than a trip computer thingy.

[Efthreeoh]

Originally Posted by n00b0rKa

Because I don't always refuel when I leave or arrive back from a journey, and I find it too easy to mess up. I'm sad to hear this, in my head this shouldn't even be an iDrive function, rather than a trip computer thingy.

Then just reset the MPG gauge and the trip odometer before the journey, that will give you a per-journey fuel consumption value. You can then calculate the liters of fuel used.

[ewicky]

Originally Posted by Efthreeoh

Then just reset the MPG gauge and the trip odometer before the journey, that will give you a per-journey fuel consumption value. You can then calculate the liters of fuel used.

Are you saying if you divide the trip's number of miles driven by the trip's miles per gallon then the answer would be the trip's number of gallons burnt?!? Witchcraft! We shall burn you at the stake!

Also ya jt335i's suggestion, while fine in theory, doesn't work well in my experience. It's because pumps' overflow-sensor-feature-thingy can vary by like a whole gallon.