Power steering VOLKSWAGEN PASSAT 1995 B3, B4 / 3.G Service User Guide

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1 - Tie rod For removing, see tie
rod, removing and installing (TRW and ZF power steering gear)
Page 48-77 2 - Boot Installing, see tie rod, removing and installing (TRW and ZF) power
steering), Page 48-77 3 - Hose clamp Open with nipper pliers Installation position
and tightening, see tie
rod, removing and installing (TRW and ZF power steering),
Page 48-77 Always replace 4 - Circlip Always replace 5 - Lock washer
6 - Toothed rod guide Supplied in repair kit
as assembly with
sealing ring Always replace Page 26 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1

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Power steering gear, disassembling

- Tie rods, removing - see tie rod, removing and
installing (TRW and ZF power steering), Page 48-77
- Close hose connections on power steering gear
if not already done

1 - Plastic locking screw
2 - Plastic locking screw Note:
Use jaw covers and check jaw covers for
contamination; e.g. metal chips or the like - Clean outside of power steering gear - Open hose clamp and push back boot - Clamp steering gear with toothed rod in vise and
remove tie rod - Remove tie rod - Take steering gear out of vise, screw on bracket
3315/1 and tighten bracket in vise Page 32 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1

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Power steering gear, assembling

Note;
All sealing rings should be lubricated with
hydraulic oil before installing. - Check whether the valve body housing -2- is
absolutely clean on the inside, otherwise clean
- Place sealing ring -1- on tool. The sealing lip -
arrow- points toward tool
- Drive sealing ring into stop 1 - Sealing ring 2 - Valve body housing - Make sure correct installation position of sealing
ring in valve body
- For better view, illustration shows valve tower in
cross section Page 43 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1

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Power steering gear, adjusting with new
toothed rod If a new toothed rod was used, the steering play
should be adjusted according to the following
description.
- Drill a hole 5.1 mm in diameter in the center of the
adjusting screw (on the back side center)
- Thoroughly clean adjusting screw - Place toothed rod in center position (measure
toothed rod excess right and left)
- Install pressure piece and spring in housing if not
done yet
- Screw adjusting screw and lock nut far enough into the housing so that the markings match Page 51 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1

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Assembly overview: power steering
gear (ZF)
It is not intended that repair work be carried out
on the power steering gear. If complaints are
received determine cause with the help of
pressure tests, leakage test and troubleshooting
programs. If a malfunction exists replace the
power steering gear.

Note:
Always replace self-locking nuts and bolts. Welding and straightening work on steering
components is not permitted.
To grease the rack use only steering gear
grease, Part No. AOF 063 000 04.
Type of oil: Hydraulic oil G 002 000 Oil system capacity: 0.7 - 0.9 Itr. (0.74 - 0.95
qt)
Supply and pressure line routing Page 48-85 . Page 54 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 - Power steering gear Removing and
installing Page 48-15 Adjusting Page 48-59 Checking steering
moment Steering gear with
reduced steering
moment only
permissible for
vehicles up to 85 kW Steering moment on
16 V and VR 6
vehicles is approx. 2
Nm higher
2 - Hose clip Always replace- use
pliers to open Tensioning Page 48-81 Page 55 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1

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3 - Boot Remove ball joint
before removing Check for wear (cuts,
cracks), ensure
sealing surfaces and
sealing lips are clean
and undamaged The end diameters are larger than the boot for TRW power steering
gears Must not be installed
on TRW power
steering gear
4 - Hose clip Always replace - use
pliers to open Tensioning Page 48-81 Must not be installed
on a TRW power
steering gear Page 56 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1

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5 - Right-hand tie rod Removing and
installing Page 48-77 Vehicle alignment
Page 44-1 Tie rod boot seat
diameter ZF: 15 mm
TRW: 12.7 mm Must not be installed
on a TRW power
steering gear
6 - Left-hand tie rod Removing and
installing Page 48-77 Tie rod boot seat
diameter ZF: 15 mm
TRW: 12.7 mm Must not be installed
on a TRW power
steering gear Adjusting length
Page 48-84 Page 57 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1

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Power steering gear, adjusting (ZF)

Note:
Two mechanics are required when adjusting.
Adjust with engine switched off.

- Raise vehicle on hoist.
- Wheels in straight-ahead position.
- By turning the steering wheel to and fro (about
30 to center axis) a knocking noise will be
heard if there is excessive play. - The second mechanic carefully screws the
adjustment screw -arrow- into the cover until the
knocking noise can no longer be heard inside the
vehicle.
- Complete a road test ensuring that when
maneuvering or negotiating corners the steering
self-centers without sticking. Page 59 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1

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Power steering gear, disassembling and
reassembling (ZF)
This repair is limited to replacing the sealing
rings and, if necessary, the toothed rod. Steering
gears that are damaged by an accident must be
replaced
For a satisfactory and successful repair, the
greatest care, safety and proper tools are
required.

Note:
Clean hose connections and their surroundings
thoroughly before opening
Thoroughly clean work place (workbench, vise)
before starting work if necessary place paper
towels on the working surface
Place parts that have been removed on a clean
surface.
If the repair will not be carried out immediately,
cover parts
Do not use cloths with lint All the replacement parts that are needed are
contained in the repair kit
Only take replacement parts out of the package
right before installing. Use only parts in original
packaging
Always install all of the parts in the repair kit Page 60 of 99Steering12/7/2004http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.48.1