1997 VOLKSWAGEN PASSAT check engine

Downloaded from www.Manualslib.com manuals search engine 47-23


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

Downloaded from www.Manualslib.com manuals search engine 47-24
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

Downloaded from www.Manualslib.com manuals search engine 47-25
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

Downloaded from www.Manualslib.com manuals search engine 47-26

Adjusting regulator
Rear axle test pressure too high:

- Release tension on regulator spring. Rear axle test pressures too low:

- Tension regulator spring.
Note:
Do not adjust with brake pedal depressed,
therefore observe the following sequence:

- Read off figures.
- Release pedal.
- Adjust spring.
- Depress pedal again.
- Read off figures and if necessary, readjust.
- Remove pressure gauges and bleed brake
system Page 47-27 . Page 4 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

Downloaded from www.Manualslib.com manuals search engine 48-1


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

Downloaded from www.Manualslib.com manuals search engine 48-3

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

Downloaded from www.Manualslib.com manuals search engine 48-6
The small metal lug on the lower section must be
visible in the hole in the upper section (arrow). If
necessary pull both sections firmly apart onto stop or
press together. Fig. 3 Length of steering column, checking Fig. 4 Steering column, pre-assembling - Carefully clamp the lower section of the steering
column in a vice so that the upper part is
supported on the jaws. Page 6 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1

Downloaded from www.Manualslib.com manuals search engine 48-13

Pump delivery pressure, checking

- Disconnect pump pressure line. Test requirements: - Install adapter and test equipment. Cut-off valve
on gauge open.
- Start engine and if necessary add fluid to reservoir. A - VAG 1402/2 B - VAG 1402/1 C - Hose from adapter kit VAG 1402/6 D - VAG 1402 V-belt/V-belt tension OK. System not leaking. Hoses/lines are not kinked or restricted. Page 13 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1