Below the steering wheel.
the bonnet lever is under the steering wheel it should have a red handle
I have the 1999 model and its under the bonnet at the front :)
on the bonnet landing panel.otherwise the panel that the bonnet sits on ,gives all info
under the steering wheel column there is a red handle that gives every impression it's going to be a steering wheel height adjustment, but it isn't, it's the bonnet release. Took us some finding too I've never taken longer to find a bonnet release in my life!this covers the 1995 1997 1998 1999 2000 2001 and 2002 ford fiesta as well (just making it easier for google to find there)
may be fuel lines
Under the bonnet there is a black fuse box at the top on the right, just next to the bonnet hinge
On the bottom of the steering column, on mine it's a large red handle. Under the bonnet (on mine) go to the centre of the front and feel carefully for a horizontal plastic switch, push it right and the bonnet will open The support arm is across the front above the radiator.
It's the bottle under the bonnet with the cap and a wire on it.
Petrol Blue
Under the bonnet, under the heater motor filter. It's difficult to get to and requires removing the filter unit. Mk4
the standard location will be on the firewall.
It would be with the VIN number under the bonnet, on the dash on the left side, or inside the door of the drivers or passenger side.