In a message dated 97-12-07 23:56:15 EST, turinsky@juno.com writes:

<< Whilst working on the new '89 Syncro Westie I noticed about 7 drops of
 brilliant, green coolant on the floor just below the oil filter....  >>

Probably the oil cooler (filter screws onto it) sealing ring.

Jim Thompson wrote this recently:
     VW has recently superseded the N 901814.02 O-Ring to a newer part number:
     021-117-070A - Price is still the same at $3.35 each.  Why they're using
     a Type 4 Engine prefix code is beyond me.
     I carry these as well (My PN 025-1119) - my price is $2.25 each.
     Jim Thompson
     Check out our latest cool stuff at:
     http://www.oldvolkshome.com
     jim@oldvolkshome.com (530) 221-5342
     Sherwood Automotive * The Old Volks Home

Good luck,
Jim Davis