Adjustment of angles of installation of all four wheels (Discovery 3)

CAUTION: Make sure the vehicle is on a flat, level surface.

CAUTION: Make sure the air pressure in the tires is correct.

WARNING: Use only equipment recommended by the manufacturer to adjust the four wheel alignment.

CAUTION: Make sure the vehicle's fuel tank is full. If this is not the case, evenly distribute around the fuel tank ballast corresponding to a full fuel tank.

WARNING: Make sure there are no heavy objects in the vehicle.

WARNING: Make sure the normal (NORMAL) air suspension height.

CAUTION: Make sure the steering wheel is straight ahead.

WARNING: Before adjusting the geometry, make sure the turntables move freely.

NOTE: This procedure is for both air and spring suspension vehicles.

1. Check the tie rod ends, suspension joints, hub bearings, wheel rims and tires for damage, wear and play.

• Adjust or repair worn, damaged or misadjusted parts.

2. Check and adjust tire pressure.

3. Place the vehicle on a calibrated horizontal vehicle lift.

4. Release the parking brake.

5. Vehicles with dynamic suspension: Using an approved scan tool, check the air suspension control module for DTCs and clear the codes as needed.

6. Vehicles with Dynamic Suspension: Using the scan tool, set the vehicle to 'Geometry Set Mode' using the instructions below (geometry adjustment mode). Putting the car into this mode will allow you to more accurately control the ride height.

• Select the 'Configuration' tab (configuration).
• Select 'Set up and Configure' (set up and configure).
• Select 'Air Suspension' (air suspension).
• Select 'Suspension Geometry Set Up' (suspension geometry adjustment).
• Select 'Tight Tolerance Mode' (tight tolerance mode).
• Follow the on-screen instructions to complete the setup process.

7.

NOTE: If rear camber adjustment is required, before making other wheel alignment adjustments, loosen the rear camber adjustment bolts until the adjustment can be made. Do not loosen the rear camber adjustment bolts completely.

Check and adjust wheel alignment using only Land Rover approved wheel alignment equipment for all four wheels.

8.

CAUTION: Before tightening the toe link nut, make sure the link shank is fully seated in the body frame. Failure to do so will result in damage to the toe link or body frame.

NOTE: This operation is only required when removing or replacing toe adjustment rods.

Adjust rear rudder over bumps.

• Loosen the nut securing the inner ball joint of the toe adjustment rod.
• Install a gap of 10 mm between the underside of the rubber boot of the toe-adjustment link and the body frame bracket.
• Tighten the inner ball joint nut of the toe adjustment rod (tightening torque 133 Nm).
• Repeat the above procedure on the other side.

9.

NOTE: The rear camber bolts cannot be tightened when the rear wheels are installed. Do not remove the rear wheels to tighten the rear camber adjustment bolts until other wheel alignments have been made.

Adjust rear wheel camber.

• Loosen the rear camber adjustment bolts.
• Turn the rear camber adjustment bolt until the desired value is obtained.
• Repeat the above procedure on the other side.
• Tighten the rear camber adjustment bolts.

10. Adjust rear wheel alignment.

• Loosen the lock nut of the toe adjustment rod.
• Rotate the inner ball joint of the toe-in adjustment rod until the desired rear wheel toe-in is obtained.
• Tighten the lock nut of the toe adjustment rod (tightening torque 130 Nm).
• Repeat the above procedure on the other side.
• Measure the rear wheel alignment.

11.

WARNING: Make sure the turntables move freely before adjusting the geometry.

Adjust the camber of the front wheels.

• Loosen the lower arm front camber adjustment bolt.
• Turn the lower arm front camber adjustment bolt until the desired value is obtained.
• Tighten the lower arm front camber adjustment bolt (tightening torque 275 Nm).
• Repeat the above procedure on the other side.

12. Adjust the longitudinal angle of inclination of the axis of rotation of the front wheels.

• Loosen the rear lower arm pivot bolt.
• Turn the pitch adjustment bolt until the desired value is obtained.
• Tighten the lower arm pivot rear bolt.
• Repeat the above procedure on the other side.
• Measure the caster angle again.
• Repeat the above procedure until the correct caster angle for both wheels is obtained.
• Tighten the rear lower arm pitch adjustment bolts (tightening torque 275 Nm).

13. Set the steering wheel to the straight ahead position.

• Measure the length of the visible threaded part of each rod.
• If the visible threaded part differs by more than 2 mm:
• Stage 1: Loosen the jam nut on one tie rod end.
• Stage 2: Rotate the link until the visible threaded part of both tie rods is the same.
• Step 3: Tighten the tie rod end locknut.
• Stage 4: Turn the steering wheel until the toe of both front wheels is the same.

14. If the steering wheel deviates more than three degrees from the straight-line position, remove the steering wheel and install it again by moving it one spline in the straight-line direction. Steering wheel (57.61.01)

• Set the steering wheel to the straight ahead position.

15. Adjust the front wheel alignment.

• Loosen the lock nuts on the tie rod ends.
• Set the desired toe value for each front wheel by turning the tie rods.
• Tighten the locknuts of the tie rod ends (tightening torque 53 Nm).

16. Vehicles with dynamic suspension: Using a scan tool, return the vehicle to 'Normal Mode' (normal mode).

• Select the 'Configuration' tab (configuration).
• Select 'Set up and Configure' (set up and configure).
• Select 'Air Suspension' (air suspension).
• Select 'Suspension Geometry Set Up' (suspension geometry adjustment).
• Select 'Normal Mode' (normal mode).
• Follow the on-screen instructions until the process completes for normal mode.

17.

WARNING: Do not work on or under the vehicle if it is only supported by a jack. Always place secure supports under the vehicle.

Raise and support the vehicle.

18. Remove the rear wheels with tires.

19. Tighten the rear camber adjustment bolts (tightening torque 113 Nm).

20. Install wheels with tires.

• Tighten the wheel nuts to 140 Nm.

21. Using a scan tool, calibrate the steering wheel angle sensor.