Trouble with fuel gauge

[gonzales]

I have a 52 plate MCS and recently have been having trouble with my fuel gauge. It is part of the sat nav panel and is stupid orange bars instead of a standard needle fuel gauge. Anyway..... the car was filled to the brim from empty on thursday morning, drove fine thursday and friday morning. Friday evening on the way home from work the car claimed I had no petrol, as I knew I had filled it I went on my merry way. Over the course of the weekend my fuel gauge has been going up and is now showing 3/4 full.

It is booked into Williams BMW for a check up but i wondered if anyone else had had similar problems.

Cheers.

[blackspider]

Used to do 2 or 3 of these a day-The fault always used to be the offside tank sender being bent or the slide contacts worn.They need replacing and not a job for the faint hearted...although accessable from inside,they are a bugger to get out.
Other cases-wiring trapped by the airbag control unit(under carpet in front of handbrake)or the cluster.
with the ignition off,if you press the button on the cluster and keep it pressed then turn ingnition to position 1-you will see "test 01"in the cluster.press the button on the cluster so it reads "test 21"take your finger off of the button it will either automatically look like its having a fit or it will say reset-hit the button again if it does and it will have a fit.
What its doing is a control unit reset-sometimes this can help

[Hobzy]

I concur. Had this on my Cooper - went back 4 times (plus to do the airbag light - sigh) but still wouldnt have swapped it for anything. No problems on the 53 plate S though...

[gonzales]

Cheers Guys, looks like I am off to Williams Mini for them to take a looky.