In a message dated 8/14/00 2:33:31 AM Eastern Daylight Time, rfeussner@gmx.de 
writes:

<<  Speaking of digital clocks, mine doesn't work - I was thinking of having
 it
 > replaced - its pretty expensive though... and I'm not so certain how long
 it
 > would last since my mechanic mentioned that they're usually not working
 when
 > he sees them.... So has anyone replaced theres??? I have a 91
 
 In Germany the mid 80s Polos use the same digital clock (if they aren�t
 equipped with the basic analog clock). I just replaced my Vanagon clock with
 one of these. >>

its the same digital clock module used on ALL vw's from '84 to the mid 
'90's...  golf, jetta, etc..etc..  
chris