Fuel Lines
 

Just got back from a trip and could smell fuel. Looked underneath and all i could find were these three lines. I believe one is a feed the other a retrn to the tank. What’s the third line please with the broken connection?

Breather line for the tank? Goes to the charcoal canister in the engine bay. That's just a guess, but sounds right to me......

Maybe it could just be pushed back in, so probably just a breather with no fuel pressure.

Looks as if the nut is missing from the stud for the heat shield - see the thread on here about someone who has the shield rattling - so maybe the car has been grounded at some time and the line has been caught (on a road hump?).

Here is the thread: https://www.volvoforums.org.uk/showthread.php?t=316711

Thanks. I know its not been grounded as Ive had the car for 21 years. Good spot on the nut though. Most obliged.

It's definitivly the breatherline. You can try to push it back into the thicker connectorpart. Should work, there is no pressure on it!