1997 VOLKSWAGEN PASSAT wheel

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Brake pressure regulator,
checking and adjusting

Vehicles without ABS, vehicles with
ABS, ABS/EDS, Teves 04 The brake pressure regulator is mounted on a bracket
which is in turn fixed to a rear axle mounting bracket
and is controlled from the rear axle by a spring.
Checking operation
Firmly depress the brake pedal and release quickly
(vehicle standing on its wheels). This must cause the
brake pressure regulator lever to move.
Checking and adjusting pressure
Note:
The brake pressure regulator is set with the vehicle
unladened 1)
.
1)
The term "unladen" means: The weight of the
vehicle ready for the road (full fuel tank, spare wheel,
tool kit and jack). Page 1 of 4Brake pressure regulator, checking and adjusting12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.47.5

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Note:
Bleeding brake system on vehicles with ABS Page 47-27 . - Lift vehicle and connect pressure gauges to front
left brake caliper and to rear right wheel
cylinder/caliper.
- Bleed both gauges. - Lower vehicle and bounce the rear of the vehicle
several times.
- Depress brake pedal and check pressures. - Compare figures attained with specifications
Page 47-25 and if necessary adjust. Page 2 of 4Brake pressure regulator, checking and adjusting12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.47.5

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Load dependent brake pressure regulator specifications Model / Version Bar (psi) Bar (psi)
Rear axle drum Front axle 50 (725) Front axle 100 (1450)
brakes Rear axle 30 - 36
(435 - 522) Rear axle 51 - 57
(740 - 827)
Rear axle disc Front axle 50 (725) Front axle 100 (1450)
brakes Rear axle 35 - 41
(508 - 595) Rear axle 56 - 62
(812 - 899)
Four wheel drive Front axle 50 (725) Front axle 100 (1450)
Rear axle 41 - 47
(595 - 682) Rear axle 66 - 72
(957 - 1044) Page 3 of 4Brake pressure regulator, checking and adjusting12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.47.5

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Brake system, bleeding (with pressure
bleeder VAS 5234)
Opening the hydraulic unit bleed screws on
vehicles with ABS, ABS/EDL is not permitted! Bleeding sequence
Note: - Connect VAS 5234 Brake filler and bleeder unit. - Open bleeder screws in the specified order and
bleed brake calipers and wheel cylinders.
1 - Right rear wheel cylinder/brake caliper 2 - Left rear wheel cylinder/brake caliper 3 - Right front brake caliper 4 - Left front brake caliper On vehicles with brake pressure regulator move
the regulator lever when bleeding rear brakes. Depress the brake pedal several times during
bleeding. Page 2 of 3Brake system, bleeding12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.47.6

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Steering

Assembly overview: steering column,
column tube, steering wheel and airbag
steering wheel

Airbag system functional check and
interrogating Diagnostic Trouble Code (DTC)
Memory.
Repair Manual, Body Exterior, Interior, Repair Group 68; General body repairs
Safety precautions when working on airbag
Repair Manual, Body Exterior, Interior, Repair Group 68, General body repairs
Note:
All parts marked with a "1)
" can be pre-
assembled outside of the vehicle
Pre-assembling steering column Page 48-6 Always replace self-locking nuts and bolts. Welding and straightening work on steering
components is not permitted. Page 1 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1

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1 - Cover plate
2 - Hex nut, 50 Nm (37 ft
lb)
3 - Steering wheel Install in center
position
4 - Airbag unit Removing and
installing Page 48-7 5 - Steering wheel for
airbag Removing and
installing Page 48-8 Removing and
installing Airbag Spiral Spring Page 48-10 6 - Hex socket head bolt,
6.5 Nm (57 in lb) Always replace 7 - Connector
8 - Splined adapter sleeve Removing Page 48-5 Installing Page 48-5 Page 2 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1

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9 - Spring
10 - Steering column
switch/steering lock
housing1)
Distance between
steering
wheel/steering column
switch is not
adjustable
11 - Upper trim
12 - Support ring1)
With washer 13 - Steering column1)
Remove by pulling upwards out of column tube Checking length
Page 48-6 14 - Hex bolt, 30 Nm (22 ft
lb)
15 - Hex nut, 25 Nm (18 ft
lb)
16 - Hex nut, 30 Nm (22 ft
lb)
17 - Steering column
universal joint
18 - Spring Page 3 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1

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Airbag unit, removing and installing

Removing

- Disconnect battery Ground strap.
- Center steering wheel (wheels straight-
ahead). Installing
Install in reverse order
Note:
Only use new hex socket head bolts for airbag unit.
Tightening torque: 6.5 Nm (57 in. Ib).
CAUTION!
Make sure that no one is in the vehicle when
connecting the battery Ground strap. - Remove both socket head bolts from airbag unit. - Remove airbag unit from steering wheel and
disconnect wiring connector from airbag unit.
- After installing the airbag unit, switch on ignition
then connect battery Ground strap. Page 7 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1