Fuel Lines
Symptoms: Smell of gas outside the car after parking, long cranking times to start (fuel pump must repressurize system).
The fuel lines under the car sometimes develop leaks as a result of corrosion at the points where they mount to the body. Replacement lines from Audi are expensive and can be difficult to obtain. For an alternative, flexible copper line has been suggested, but there is a real danger of developing cracks, and it's not DOT legal. The safest bet is to splice in some steel lines rated for high pressure fuel using fuel injection hose to mate with the existing lines.
