I can smell fuel on the drivers side of the 760 after driving her, but have yet to see any fuel leaking. I checked in the rear of the car as well by the sending unit and cant find any damaged fuel lines. Thank goodness I dont smoke
I'm not sure on your model but, on my 01 v70 I had the same problem and discovered that under the rear left seat there is an inspection panal when removed exposes the top of the tank.I had gas seeping from a gasket that held down a prepump. It look liked the top of a mason jar but, upside down.You need a special tool to remove or tighten it.I had a tech remove it . He found dirt on the gasket.He cleaned it lubed it and put it back on.You must make sure that the arrows on the lid and the tank match up or your fuel reading will be off.The arrows are hard to see on the rear.It is hard to tighten because the pump turns while your tightening the lid.I then opened all windows and ran a box fan all night and the smell finally went away.
Hope this helps.
Under the inspeaction plate, I found the leak. It was the return fuel line. It was 5/16 line that was around 14" long. I had to ...........
1. Remove the plate
2. Start the car to wait for the leak to begin(to find the leak)
3. Jack up the car under the rear end
4. Place the stands under the side jack supports
A. This was for safety
B. And also extra clearance when I let the rear end down.
5. Then its a 5 minute job.