In a message dated 98-07-11 14:01:05 EDT, pdooley@GTE.NET writes:

<< Wow, I guess I stand corrected on the pressure switch deal.  I just figured
 any responsible auto manufacturer would put a high pressure switch on an AC
 system.
 Sure, in production runs as high as VW this would be expensive, but not
 nearly as much as litigation an recalls.
 When did VW start using them?  My 77 scirocco had them, so does my 86.  I
 never bothered checking my van, haven't got to that point in the buildup
 yet. >>

Sadly, I don't have one to look at (Westy with AC wannabee). Help me
out...Doesn't the bottom of the receiver-filter-dryer have a one-shot, blow
off-valve for high pressure??? I thought all them did. It is a little 10mm
bolt, with a plug of alloy in the center that melts at a very certain
temperature, acheivable only under sickening pressure.

This plug keeps your AC system from completely fritzing when you don't change
the filter/dryer or run into any other high pressure situation (360-degree
performance review, home loan appraisal, birth of septuplets, etc.) Don't
Vanagons have these???

gmbulley
cary, nc