Volkswagen Passat 1995 Official Factory Repair Manual page 3538

Assembly overview: brake master cylinder/brake servo
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.47.1
12 - Cap
13 - Brake fluid reservoir
14 - Non-return valve
Page 4 of 4
47-4
12/7/2004