Whilst checking for rust on the solid fuel lines under my E30 I found a
hose which isn't connected to anything and need some help identifying
It originates on the underside the fuel tank with a rubber hose on a
push-on connector, on nearside of the car, near the fuel filter. It
then runs the length of the car as a solid line to the engine bay, just
next to the fuel feed and return lines. A rubber hose is connected to
it in the engine bay, near the brake booster, but this hose is just
open; when i found it, it was just poked into a hole in the box-section
chassis leg...! There is a faint vapour smell from the hose so it's
slightly concerning that it's loose.
The car is a 1990 UK 320iSE without a catalyst, and therefore no
charcoal canister that i know of. Does anyone know the purpose of this
hose? Bentley, Haynes and the web haven't had the answer so far.
Thanks very much.