Volkswagen PASSAT Repair Manual page 193

Assembly overview - hydraulic unit, brake servo/brake master cylinder
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.45.4
- Remove nuts from brake servo/bulkhead.
- Carefully remove hydraulic unit and brake servo
with brake master cylinder from engine
compartment.
Installing
Note:
Hydraulic units supplied as replacement parts
are already filled with hydraulic fluid and bled.
Only remove sealing plugs on hydraulic unit
when the relevant brake line is going to be
connected.
If the sealing plugs are removed too early,
brake fluid can escape, it is then no longer
guaranteed that the unit is sufficiently filled or
adequately bled.
- Preassemble hydraulic unit and brake servo with
tandem master cylinder away from vehicle.
- Secure hydraulic unit, brake servo with tandem
master cylinder to bulkhead.
- Connect brake lines.
- Reconnect all electrical connections on ABS unit
(ensure correctly connected).
- Bleed brake system
- Install left-hand trim under instrument panel.
Page 7 of 10
Page 47-27 .
12/7/2004
45-24