V50 Electrics : V50 petrol gauge issue

[Parisien]

I've done a search about the fuel gauges on this section it appears they do give bother, but not entirely clear about whether owners replaced of followed up on their fixes.

Anyways, the son borrowed car, miles left readout went down to "25", he stuck a tenners worth in it, still nothing registered on mileage left readout, plus orange light still on, needle off bottom of scale, I stuck another £25 in, and it now says 115 miles above red zone and light is out, I would have expected about 250 miles left plus just under half full, will it rectify itself or a new sender required?

P

[LizardOfBodom]

Petrol gauge on our cars are weird gizmos. The info displayed by needle is actually a CEM-provided value, its not just "fuel level". Its some calculated value based on estimated fuel usage (calculated again by mpg and drive style) and actual fuel level in tank based on floating unit. All that info goes into CEM where its processed and just then output of "how many liters left" is displayed in dash. Its unnecessary complicated, but thats how it works.
In your case it may rectify ifselfa after some miles when it will recalculate that there the small increase of fuel level is actually a valid value and not result of car standing at angle etc. Happened to me few times aswell (literally witnessed needle going from orange warning to over red mark few kms into my trip).

[andy_d]

simples solution i use

there is a fuel gauge its needle moves,, the orange light comes on with "not a lot left"
when needle is close to empty, fill up Before the orange light comes on

ignore the "miles left" on the DIM, its a calculation based on how the Last XX miles were driven

take yesterday for me, the "miles left" said 110 miles when i started, i drove 2miles in 30mph town traffic "90miles left",, got on the motorway, steady 70mph speed, 110miles left, then 120,

the fuel gauge works,, the orange light works,, the rest is made up guesstimating.

[The Thong]

It’s a V50/S40 etc thing. My V50 had a Mickey Mouse fuel gauge. From full I could drive 90 miles before the needle started to move and it’d drop quite quickly until 2/3rds of a tank and then it’d slow down again. At a quarter of a tank the computer would be showing 200/300 miles left in the tank. As already stated above, it calculates against driving style etc. My V60 is pretty much the same too.
That’s modern tech for you

TT

[FunkyMelon]

I think I have this problem too, everytime I fill up it goes down so quickly, every day I get in it it's gone down another bar, I'm beginning to wonder.... Oh wait, it's a T5....

[Parisien]

Just to add, its still all over the place, I think we got one reading which was correct, then 15 miles later it was reading 80 miles less, will just keep a paper tab on fills and miles, and a gallon in the boot, not really worth the grief/cost to fix I suspect.


P