1990 VOLKSWAGEN CORRADO Repair Manual

STEERING COLUMN
Article Text (p. 3)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:51PMFig. 1: Lock Cylinder
Installation
Press lock cylinder into steering lock housing.
NOTE: The lock cylinder can be pressed in to stop by gently turning
the key in the lock cylinder.
STEERING COLUMN
WARNING: On Cabriolet with Supplemental Restraint System (air bag),
remove air bag from vehicle before working on steering
column. See AIR BAG under REMOVAL & INSTALLATION. Failure to
remove air bag may result in personal injury.
NOTE: Refer to illustration for exploded view of steering column
components. See Fig. 2.
Removal (Cabriolet)
1) Disconnect battery ground cable. Remove steering wheel.
Remove kneebar panel. Remove steering column lower trim panel. Unplug
2 electrical connectors.
2) Remove spiral spring assembly retaining screws. Remove
lock ring, spacer ring, spring and steering lock housing. Position
Tube (VW 420) on steering column. Release lock ring tension using snap
ring pliers.
3) Ring will slide upward with spring pressure. Remove
steering column. To remove leaf spring from steering column tube, push
retaining spring downward with a screwdriver. Disengage leaf spring.
Installation
To install, reverse removal procedure. When installing spiral
spring, install 4 turns from either stop. To install leaf spring on
steering column tube, insert leaf spring in bracket slot. Press lower
end of leaf spring inward until it engages retaining spring.
Removal (Except Cabriolet)
1) Disconnect battery ground cable. Remove steering wheel.
Remove bolt and screw from switch housing recess. Tilt switch unit

STEERING COLUMN
Article Text (p. 4)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:51PM
toward instrument panel. Pry spacer sleeve from column.
2) Pull up combination switch to disconnect wires. Remove
combination switch. Disconnect steering shaft from "U" joint shaft.
Disconnect brake pedal push rod.
3) Disconnect clutch cable from clutch pedal. Using a
screwdriver, push down leaf spring retainer clip to disengage it from
mounting slot.
4) Remove bolts that retain steering column under instrument
panel. Drill out shear bolts. Remove column assembly from vehicle.Fig. 2: Identifying Steering Column Components
Courtesy of Volkswagen United States, Inc.
Installation
To install, reverse removal procedure. Place wheels in
straight-ahead position. Tighten pinch bolt. Install spacer. See
Fig. 2. Install combination switch and steering wheel. Adjust brake
pedal and clutch pedal height.
OVERHAUL
STEERING COLUMN
NOTE: Refer to illustration for exploded view of steering column
components. See Fig. 2.
Disassembly
Press steering shaft from column. Remove bearings from
steering column.
Inspection

STEERING COLUMN
Article Text (p. 5)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:51PM
Check upper bracket for damage and upper bearing for smooth
rotation. Check shafts for signs of bending, damaged splines, or
damaged "U" joints. Check column tube for bending or other damage.
Repair or replace components as necessary.
Reassembly
Press in steering shaft and new bearings. DO NOT use more
than 200 lbs. (90 kg) force to press shaft and bearings into column
tube.
"U" JOINT SHAFT
Disassembly
1) Remove pinch bolt that connects lower end of "U" joint
shaft to steering gear pinion shaft. See Fig. 2. Separate manual
gearshift linkage from steering box. Remove steering gear retaining
nuts.
2) Pull box down to separate from lower "U" joint. Remove
rubber boot from lower "U" joint. Remove upper "U" joint pinch bolt.
Pull down joint and remove shaft with "U" joints.
Inspection
Inspect "U" joints for wear or excessive play. If abnormal
wear or play exists, replace as necessary.
Reassembly
1) Fit "U" joint to steering shaft. Align steering shaft
notch with lower "U" joint slot. Install boot and damping grommet. Fit
steering box to frame while guiding pinion shaft into lower "U" joint.
2) Hand-tighten steering gear retaining nuts. Place wheels in
straight-ahead position. Align pinion shaft and "U" joint. Tighten
pinch bolt. Tighten steering gear retaining nuts. Connect gearshift
linkage. Check linkage for smooth operation.
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS TABLEÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄApplication Ft. Lbs. (N.m)
Pinch Bolt ............................................ 22 (30)
Steering Column-To-Instrument Panel
Retaining Bolt ...................................... 15 (20)
Shear Bolt ............................................ (1)
Steering Gear Retaining Nut ........................... 22 (30)
Steering Wheel Nut .................................... 37 (50)
(1) - Tighten until bolt head snaps off.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄEND OF ARTICLE

STEERING COLUMN SWITCHES
Article Text
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:51PM
ARTICLE BEGINNING
1989-92 SAFETY EQUIPMENT
Steering Column Switches
Cabriolet, Corrado, Fox,
Golf, GTI, Jetta, Passat
WARNING: To avoid injury from accidental air bag deployment, read and
carefully follow all WARNINGS and SERVICE PRECAUTIONS.
NOTE: For information on air bag DIAGNOSIS & TESTING or DISPOSAL
PROCEDURES, see the AIR BAGS article.
SERVICE PRECAUTIONS
Observe these precautions when working with air bag systems:
* DO NOT use computer memory saver tool. Using computer
memory tool will keep air bag system active and may
cause accidental deployment of air bag unit.
* Disable air bag system before servicing any air bag
system or steering column component. See DISABLING &
ACTIVATING AIR BAG SYSTEM.
* Because of critical operating requirements of system,
DO NOT attempt to service any air bag system component.
* Air bag parts should not be left unattended. They
should be installed in vehicle immediately after
obtaining them.
* Air bag components which have been dropped more than 18
inches should not be used.
* Chemical cleaners, oil and grease should not contact
vinyl covering on air bag unit.
* DO NOT place stickers or covers on steering wheel.
* Always disable air bag system before performing
electric welding on vehicle.
* Air bag system can only be tested using Diagnostic
Tester (VAG 1551) and Multimeter (US 1119). Never use
test light on air bag system.
* DO NOT expose air bag unit to temperatures greater than
194øF (90øC).
SYSTEM OPERATION CHECK
Two lights pertaining to air bag system are located directly
above air bag symbol in instrument cluster. See Fig. 1.
Control light is used to indicate readiness of system. This
light, which glows when ignition switch is turned to ON position or
engine is started, will stay on approximately 5-8 seconds while
diagnosis unit in air bag control unit performs an electronic test
cycle of system.

STEERING COLUMN SWITCHES
Article Text (p. 2)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:51PM
If control light does not glow when ignition is turned to ON
position or does not go out after 5-8 seconds, a fault probably exists
in system. If a fault occurs while ignition is on, it is stored in
fault memory. Warning light will then glow and air bag system will be
switched off. If warning light glows or flickers while driving, air
bag system should be tested. See AIR BAG article in the
ACCESSORIES/SAFETY EQUIPMENT Section.Fig. 1: Locating Air Bag Warning & Control Lights
Courtesy of Volkswagen United States, Inc.
DISABLING & ACTIVATING AIR BAG SYSTEM
WARNING: Wait about 20 minutes after deactivating air bag system
before servicing. Air bag system voltage is maintained for
about 20 minutes after system is deactivated. Servicing
system before 20 minutes may cause accidental air bag
deployment and possible personal injury.
To disable air bag system, disconnect negative battery cable
and wait 20 minutes before working on vehicle. To activate system,
reconnect negative battery cable. Perform a system operational check
to ensure proper system operation. See SYSTEM OPERATION CHECK.
ADJUSTMENTS
AIR BAG SPIRAL SPRING
To center spiral spring assembly, turn spring assembly 4
turns from stop in either direction.
AIR BAG UNIT REMOVAL & INSTALLATION
WARNING: On Cabriolet equipped with a driver-side air bag, use
extreme caution while servicing steering column. Failure to

STEERING COLUMN SWITCHES
Article Text (p. 3)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:51PM
follow air bag service precautions may result in air bag
deployment and personal injury. See SERVICE PRECAUTIONS.
After component replacement, perform a system operational
check to ensure proper system operation. See SYSTEM
OPERATION CHECK.
Removal
1) Before proceeding, follow air bag service precautions. See
SERVICE PRECAUTIONS. Disable air bag system. See DISABLING &
ACTIVATING AIR BAG SYSTEM.
2) Air bag unit is located on steering wheel hub. Remove Torx
head retaining screws on rear of steering wheel. See Fig. 2. Lift air
bag unit from steering wheel, and tilt air bag unit downward.
Disconnect wiring connector from air bag unit.Fig. 2: Removing Air Bag Unit
Courtesy of Volkswagen United States, Inc.
Installation
To install, reverse removal procedure. Tighten air bag unit
retaining screws to specification. See TORQUE SPECIFICATIONS table.
Reactivate air bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM.
Check air bag indicator lights to ensure system is functioning
properly. See SYSTEM OPERATION CHECK.
SPIRAL SPRING REMOVAL & INSTALLATION
Removal
1) Before proceeding, follow air bag service precautions. See
SERVICE PRECAUTIONS. Disable air bag system. See DISABLING &
ACTIVATING AIR BAG SYSTEM.
2) Remove air bag unit. See AIR BAG UNIT. Remove steering
wheel. See STEERING WHEEL. Remove knee bar panel and steering column
lower trim. Disconnect 2-pin wiring connector (Green/Black and
Green/Red wires) at base of steering column. Remove 3 spiral spring
retaining screws, and remove spiral spring. See Fig. 3.

STEERING COLUMN SWITCHES
Article Text (p. 4)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:51PMFig. 3: Removing Spiral Spring Assembly
Courtesy of Volkswagen United States, Inc.
Installation
1) To install spiral spring assembly, reverse removal
procedure. NEW spiral spring assemblies have a locking tab which locks
assembly in its centered position. Locking tab must be removed before
installing new spring assembly.
2) If a spiral spring assembly is reinstalled, it must be
centered. To center, turn spring assembly 4 turns from stop, in either
direction.
3) Reactivate air bag system. See DISABLING & ACTIVATING AIR
BAG SYSTEM. Check air bag indicator lights to ensure system is
functioning properly. See SYSTEM OPERATION CHECK.
STEERING WHEEL REMOVAL & INSTALLATION
Removal (Cabriolet)
1) Before proceeding, follow air bag service precautions. See
SERVICE PRECAUTIONS. Disable air bag system. See DISABLING &
ACTIVATING AIR BAG SYSTEM.
2) Turn front wheels to straight-ahead position. Remove air
bag unit. See AIR BAG UNIT under REMOVAL & INSTALLATION. Remove
steering wheel nut and spring washer. Mark steering wheel and shaft
for reassembly reference. Remove steering wheel.
Installation
To install, reverse removal procedure. Tighten steering wheel
nut to specification. See TORQUE SPECIFICATIONS table. Reactivate air
bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM. Check air bag
indicator lights to ensure system is functioning properly. See SYSTEM
OPERATION CHECK.
STEERING WHEEL & HORN PAD REMOVAL & INSTALLATION

STEERING COLUMN SWITCHES
Article Text (p. 5)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:51PM
Removal (Except Cabriolet)
1) Disconnect negative battery cable. Remove screws attaching
horn button assembly/center pad to steering wheel from behind steering
wheel (if equipped).
2) Pull horn button assembly/center pad from steering wheel.
Use a cloth covered screwdriver to pry off horn button assembly/center
pad (if necessary). Disassemble horn button assembly (if necessary).
3) Place springs, contacts, horn or cruise control harness
connectors and screws in order for reassembly reference. See Fig. 4.
Place wheels in straight-ahead position.
4) Remove steering wheel retaining nut and washer. Mark
steering wheel and shaft for reassembly reference. Using a steering
wheel puller, remove steering wheel. See Fig. 5.
5) Place steering wheel, cruise control set/resume switch
(if equipped), canceling cams, springs and slip rings in order for
reassembly reference.Fig. 4: Typical Steering Wheel Components (Without Air Bag - Fox
Shown; Others Are Similar)
Courtesy of Volkswagen United States, Inc.