Volkswagen Passat 1995 Official Factory Repair Manual page 3507

Rear wheel brakes, servicing (drum brakes) Page 4 of 4
46-18
Brake shoe adjustment, releasing
- Insert a screwdriver through hole in brake drum
and push wedge upward.
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.46.3 12/7/2004