ECU VOLKSWAGEN PASSAT 1996 B3, B4 / 3.G Service Owner's Manual

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- 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 Page 47-27 .
- Install left-hand trim under instrument panel. Page 7 of 10Assembly overview - hydraulic unit, brake servo/brake master cylinder12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.45.4

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1 - Brake disc, not
ventilated When worn always
replace on both sides Brake disc diameter:
256 mm Brake disc thickness:
13 mm Wear limit: 11 mm 2 - Brake disc, ventilated When worn always
replace on both sides Brake disc diameter:
256 mm Brake disc thickness:
20 mm Wear limit: 18 mm 3 - Screw
4 - Countersunk screw To secure rotor Only on vehicles with
ABS Page 2 of 7Front brakes, servicing (Girling caliper)12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.46.1

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Brake pads, removing and installing

Removing - Remove lower brake caliper housing securing bolt. Counter-hold on guide pin. - Swing brake caliper housing upward. - Remove brake pads. Page 6 of 7Front brakes, servicing (Girling caliper)12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.46.1

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- Install brake pad with retaining spring in brake
caliper housing (piston).

- Install outer brake pad in brake carrier.
- Secure brake caliper housing with both guide
pins to brake carrier.

- Install both protective caps.
- Install retaining spring into brake caliper
housing.

Note:
After replacing the brake pads, depress brake
pedal firmly several times with the vehicle
stationary, so that the brake pads are proper/y
seated in their normal operating position. Page 7 of 7Front brakes, servicing (Teves/Ate)12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.46.2

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14 - Outer wheel bearing
15 - Hex nut Adjusting wheel
bearing play Using a screwdriver it
must be possible to
move the thrust
washer by finger
pressure (without
leverage) Page 42-20 Secure with locking
ring and new cotter pin 16 - Cotter pin Always replace 17 - Grease cap Removing and
installing Page 42-29 18 - Lock ring
19 - Thrust washer
20 - Wheel bolt, 110 Nm (81
ft lb) Page 4 of 10Rear wheel brakes, servicing (disc brakes)12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.46.5

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Brake pads, removing and installing

Note:
Mark brake pads when removing if they are to be
reused. Re-install in their original position to
prevent uneven braking!

Removing

- Remove wheels. - Remove parking brake cable from brake caliper
(arrow).
- Remove securing bolts from brake caliper housing; counter-hold on guide pins. - Remove brake pads. Page 7 of 10Rear wheel brakes, servicing (disc brakes)12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.46.5

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- Secure brake caliper housing with new self-
locking bolts. Note: - Attach parking brake cable (arrow) to brake caliper housing. After each brake pad change firmly depress brake
pedal several times with vehicle stationary, so
that the brake pads are properly seated in their
normal operating position. After changing brake pads check brake fluid level. Page 9 of 10Rear wheel brakes, servicing (disc brakes)12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.46.5

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The parking brake cable is secured by clamps to the
axle beam in the center of the two colored marks
(arrow). Fig. 1 Parking brake cable installation
position Fig. 2 Hand grip, removing - Pry up parking brake cable trim with a screwdriver
and pull grip and trim off forward. Page 3 of 9Parking brake lever assembly overview12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.46.6

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Fig. 3 Center console, removing - Remove rear ashtray (center console). - Remove console rear securing screws (arrows). Page 4 of 9Parking brake lever assembly overview12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.46.6

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Brake pedal/brake servo,
removing and installing
CAUTION!
The brake pedal travel must
not be restricted by
additional floor coverings.
Note:
Grease all mountings before
installing with G 000 602
grease.
1 - Securing clip Ensure securely
seated
2 - Pin
3 - Brake servo push rod
clevis
4 - Self-locking hex nut, 20 Nm (15 ft lb)
5 - Brake pedal pivot pin Page 5 of 9Parking brake lever assembly overview12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.46.6