I just read another discription, sounds a bit hit and miss.
This is what RAVE says for a 300tdi ... .
1. Apply park brake brake, chock wheels and Jack
up front of vehicle until wheels are clear of
ground.
2. Support chassis front on axle stands.
3. Disconnect drag link from steering drop arm.
4. Check torque to turn See Fault diagnosis,
Stiff Steering Checklist.
5. Centralise steering box See Centralise
Steering Box.
NOTE: Only check for no backlash when
steering box is in central position.
NOTE: If steering wheel is not straight, it
should be repositioned See Repair,
Steering Wheel.
6. Adjustment is obtained by rocking the drop arm
about centre whilst an assistant slowly tightens
the steering box adjuster screw.
7. Tighten locknut when all backlash has been
removed.
8. Repeat the check for backlash. If backlash exists
loosen locknut and repeat adjustment
procedure.
9. Turn steering wheel lock to lock and check no
tightness exists.
10. Ensure front wheels are aligned and in straight
ahead position.
11. Adjust drag link 924 mm between ball joint
centres.
12. Connect drag link and tighten to 40 Nm (30
lbf/ft).
13. Lower vehicle to ground level and remove
chocks.
14. Road test vehicle See Fault diagnosis, Road
Test Procedure.
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