If anyone wants to track down their own copy, here the info I have:

"Technical Recommendation: Journeys under difficult conditions" -- Z 4
for Volkswagen Transporter/Caravelle and Volkswagen LT
August 1984 Edition, 
supersedes the previous Techical Recommendation Z 4, March 1980 Edition
V.A.G. Service, Volkswagenwerk aktiengessellschaft -- Wolfsburg

(c) 1984 Volkswagenwerk AG, Printed in Germany 8.84

(VW Ref. #?): 0.00.534.077.20

FWIW,
Tobin

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Tobin T. Copley                  Currently               =============
(604) 689-2660                    Occupationally        /_| |__||__| :| putta
tobin@freenet.vancouver.bc.ca      Challenged!         O|             | putta
                                                        '-()-------()-'
Circum-continental USA, Mexico, Canada 15,000 miles... '76 VW Camper! (Mango)