So one issue that I've had w/ my R50 is that the fuel gauge works fine until 1/4 tank and then it won't go any lower (except when the car is off.... so I know there's no physical obstruction in the cluster). I ran out of fuel on my way home when I bought it, b/c I didn't know how to cycle through the OBC yet, and thought I had 1/4 tank left.


I'm going to try an ECU reset, but I don't think that will help. Do you guys think there might be an obstruction around the float not letting it drop further than 1/4 tank? How would I check for that?

 

So... ECU reset SEEMS to have cured it. I went through the diag menus, and have 2 good sending units. After the reset, the red light indicating < 2.5 gal fuel was illuminated for the first time since I've bought the car. As an added bonus, my trip to the fuel station also gave me my first >30 mpg reading on the OBC. Maybe I've gained a couple MPG in the process too!!

 

looks like you fixed it !!!!

Good Work !!

And thanks for sharing!!

 

Can you explain how you did that? My gauge does the same thing.

 

I wanted to be sure that anyone stumbling into my thread in the future wouldn't end up in this situation.

http://new.minimania.com/ECU_Reset_P...50_52_53_MINIs There are also threads here on NAM explaining and on mini2 and on ****************.

 

Thanks,
I'll keep looking but can't find it for my 2008 R55

 

Ah, I didn't realize that you had a 2nd gen.