From the "book of lies"
7 Exterior light units -
removal and refitting
Headlight
Warning: The discharge bulbs
fitted to models with Xenon
headlights operate at very high
voltage; before starting work, disconnect
the battery negative cable and remove
fuses F22 and F31 from the interior
fusebox.
Removal
1 Remove the radiator grille as described in
Chapter 11. Release the fastening screws and
remove the cover panel from the above the
headlight unit.
2 Undo the securing screw and remove the
trim panel from underneath the headlight unit
(see illustration). Where applicable,
disconnect the nozzle from the headlight
washer hose.
3 Disconnect the wiring plugs from the rear of
the headlight (see illustration). On models
with Xenon headlights, disconnect the wiring
connectors from the rear of the bulbs as
described for bulb renewal in Section 5.
4 Unscrew the three headlight mounting bolts
located above and below the unit, and
withdraw the headlight from the front of the
vehicle (see illustrations).


5 If necessary, the headlight range control
servo may be removed by twisting it anticlockwise
(see illustration).
Refitting
6 Refitting is a reversal of removal, but make
sure that the locating lug on the headlight
engages with the corresponding hole in the
front valance and, on completion, have the
headlight beam alignment checked at the
earliest opportunity.
By the sounds of things you havenot removed the bottom bolt .. its a long way in
HTH
