'85 seems to be when VW crossed over from two switches to single switch.
 Either way they inform the ECU whether the throttle is at idle or wide
open.  At the time I was looking (before I found this list) the dealer
wanted something exorbident, like $30+, for these little switches.  I
found equivalent replacements for $0.90 at a local electronic hobbiest
store.  I had to cut off extra contacts and epoxy them (I did it to two
vehicles) into place but they work just fine.

Walter Evens wrote:

>I have an '85 GL with the two switches on the Throttle Body.  Can I use the single switch from a VW car in place of the Idle Switch on my Vanagon?  Will they interchange?
>
>Thanks,
>
>Walter Evens
>Hesperia, CA, USA
>2-85GLs
>