There are lots of different versions of the foil assemblies. At least 4
just for tach equipped clusters in US models.

The typical 85 foil has the resistor and also has the foil portion
sticking over for a dynamic pressure circuit but without the black
connector part attached to end of it.

VW wanted to reduce costs by letting the same base part be used in
multiple applications.

Mark

pickle vanagon wrote:
> But not all foils are the same, right?
>
> Certainly, at least the early versions of the foil don't have the
> portion of it that goes over and plugs into the dynamic pressure
> circuit.  I guess they just didn't change the resistor part of the foil
> when they added that extra bit to it?
>
>
>