Fuel is not the only fluid that can cause a fire under the right
conditions, but it is extremely volatile, especially when heated. Fuel
system failures usually occur at the hoses where they connect, but on
the Vanagon, those plastic manifolds near the injectors can be a real
problem. The end cap is actually a plug, with o-ring, held in place by
that metal crimp. The crimp can rust allowing the plug to fall out. The
fuel leaves real fast when this happens. The fuel lines do need to be
inspected regularly. When replacing, it is very important to use the
correct hoses and clamps. Worm gear clamps should never be used here.
The fabric braided hose that is often sold is not suitable for the
Vanagon. Actually, it was a poor choice for the early busses and bugs
that used it. It does not last. The ends will crack under the clamps and
the rubber will breakdown quickly. VW has not used this stuff since ~82.
The correct hose for the engine compartment is N-903-397-02. Hoses
outside the engine area are N-20-281-1. I use the first hose for all 7mm
fuel connections. The protection sleeve # N-18-015-4. The correct clamps
will be either smooth inside lined, crimps, or the self adjusting spring
clips. I prefer stainless inside lined and make sure the screw is also
stainless.

I hope this helps someone. VW stopped using that braided crap for a
reason. Don't go back. I have also found most after market "Fuel
Injection" hose only last a few years. The dealer stuff will last the
10-15 years the original stuff did if it is taken care of.

Dennis