Erratic Fuel Guage

[mcbutler]

Hi Everyone,

Hope you all had a great Easter Weekend.

OK - so 35i is back on the road after a few months in a locked dry garage - battery is ok and fairly new.

it was on 25% tank so took her over and filled her to 75% on the fuel guage.
Went for a drive with Grant in his 30i over the easter weekend, we parted ways and i had a somewhat 'spicy' drive home across dartmoor. On returning home I noticed the fuel level was around 35% its a stage 2+ mapped car so its greedy.....

Two days later i return to the car, fuel showing a little more maybe 40%, the guage has settled so thats ok.

Over the day I noticed the guage varies quite a bit, i did a few miles and the guage was back to about 25% and after waiting on a hill for a moment i got the low fuel gong (at 50 mile fuel remaining). After that i had a brief stop at the shops, returned to the car and its showing about 30% and 94 miles range!!!!
I drive it back to where I store it, about 3 miles park it and sit for 5 min and its on 25%

So, is there any way of testing the fuel guage? I have seen a few poor videos on youtube using the trip button to activate a cluster test but cant make it work on my car.

Any ideas???

 

[B21]

I doubt that’s it’s the fuel gauge in the dash…much more likely it’s the float level in the ‘bucket’ in the fuel tank..

 

[mcbutler]

I doubt that’s it’s the fuel gauge in the dash…much more likely it’s the float level in the ‘bucket’ in the fuel tank..

Yeah thats what Im worried about lol

 

[B21]

I doubt that’s it’s the fuel gauge in the dash…much more likely it’s the float level in the ‘bucket’ in the fuel tank..

Yeah thats what Im worried about lol

Even better news it’s a real pig to get too..unlike the E90 where you can access it through the top ….

 

[mcbutler]

I doubt that’s it’s the fuel gauge in the dash…much more likely it’s the float level in the ‘bucket’ in the fuel tank..

Yeah thats what Im worried about lol

Even better news it’s a real pig to get too..unlike the E90 where you can access it through the top ….

Youre reading my mind - I literally just watched an excellent video - very clear - on youtube. If you want a link let me know ill send it over.

Not hard on a ramp but a bitch on your back

 

[B21]

Yeah thats what Im worried about lol

Even better news it’s a real pig to get too..unlike the E90 where you can access it through the top ….

Youre reading my mind - I literally just watched an excellent video - very clear - on youtube. If you want a link let me know ill send it over.

Not hard on a ramp but a bitch on your back

I’ve seen the videos..once you’ve done yours feel free to pop across and out my new LPFP in mine

 

[mcbutler]

Even better news it’s a real pig to get too..unlike the E90 where you can access it through the top ….

Youre reading my mind - I literally just watched an excellent video - very clear - on youtube. If you want a link let me know ill send it over.

Not hard on a ramp but a bitch on your back

I’ve seen the videos..once you’ve done yours feel free to pop across and out my new LPFP in mine

Of course