So I filled her up to a little past half way, I then drive into the city...which is about 10 miles on the freeway, and then park. I look at the gas gauge and it reads half way exactly. I come back to the car hours later to drive home and naturally the engine is cold... but then I look at the gas gauge...

I took the pic with my phone.



That's a lot of gas to be used just for a startup.

So here's my question; What's going on and does anyone else get this or something similar? Though after my car warms up, the marker may go up just a bit but not nearly anything near what it was. For example, on this picture the marker may go up to just before the half way mark but not on it. Granted, I do have my car checkup soon but these doesn't seem right, or is it?

 

Yea noo haha, you should really check that out... tiny fuel leak or, bad sending unit in the tank.... something lame i bet. check VAG see if its a code but i doubt it

 

Could've always been siffined, but thats worst case scenario i think

 

Audi's gas gauges compensate for your driving conditions. When you first got gas if you were taking it easy on the car it would be higher but later when it is sitting it actually gets a reading of the correct amount of fuel. It is hard to explain but my car does that as well.

 

our gas dont need an introduction its just bloody expensive and now close to 10$ a gallon[:@]

 

I am glad I am not purchasing gas where you do.

 

Thanks for the heads up man. Makes sense now.

 

Your car is soaking upfuel in to the PSC valve and most likely you have a leak in the cupulator which is routing this fuel intoan underlay of the unibody. Which means your car storing fuel and preparing to blow the **** out of you one day.

Fairly common with S4's.

 

Luckily I had my cupulator replaced last week. The Audi tech said there were traces of fuel soaked into the PSC valve but none in the body. He said I was lucky and probably only had a few weeks before I was ........ no more

 

wow!!! I thought I was the only one....I just bought my B5 S4 and I will fill her up all the way by the end of the day she will almost empty ..WTF!!

she's ismy daily driver...but I dont even drive that much....