At 07:39 PM 6/24/2011, David M wrote:
>Mechanic who worked on my van noticed two deteriorated hoses in
>engine compartment going between crank case breather and in boot of
>air flow meter. One is kind of horse-shoe shaped, the other is about
>4 inches long and a regular round hose. They join in the middle by a
>metal fitting.

Use heater hose.  Measure the little heater in the middle of the hose for size.

VW p/n is N 900 725 01, buy it by the foot.  They say 18x3.5 mm.

Yours,
David