Rumored to be one of the most feared and dreaded tasks, replacing the broken
power antenna in my Giuargio Esprit was starting to become a bothersome legend
in my mind - so much so that I decided one day to just jump into and tackle the
issue head on. I started by purchasing a new original Lotus Esprit antenna from
the guys at JAE, Lotus part #A082M6271F.
I came across a very useful piece of
instructional information written by one of the members of the Golden Gate
Lotus Club describing his replacement
procedure and used it as
a rough guide.
To start, you first need make sure that the antenna is in the "down"
position - otherwise it will be next to impossible to remove the old unit;
cutting off the antenna is a viable option if the unit is stuck in the
"up" position. Unscrew the lock-nut, washer and angle piece that hold
the antenna in place at the top of front passenger quarter panel as shown
below.
Next, remove the glove box door and glove box;
this will give you the necessary room in which to remove and install the new
antenna, as well as access the wiring necessary for connection. Simply remove
all the screws, nuts and bolts that hold the glove box in.

Disconnect the passenger-side air vent hose that
connects to the air vent by snipping the tie-strap and pulling off the vent tubing.
This will allow the
exposure of the antenna once the wheel arch cover is removed. This view is from
the glove box area.

Inside the passenger footwell area at the base of the front wheel arch, peel away the carpeting just enough to expose the bottom and the right side of the wheel arch cover.

There will be a series of pop-rivets holding this cover in place; two on the bottom, and one on the right side. Remove them by drilling them out. Self tapping screws will be used to replace these rivets upon re-installation.

The cover should now easily slide out.

With the wheel arch cover removed, you will see a
series of A/C hoses and red power lead running up along side the front wheel
compartment. The antenna will be located up and to the right of these
hoses.

By viewing the compartment area from the side
(as though your head is where your passenger's feet would be), you will see the
mounting strap and the base of the antenna that it holds in place. Unscrew the
nut that holds the strap to the antenna and begin wiggling the base of the
antenna to loosen it.
As you continue to wiggle the antenna out, it
helps to have a helper lightly guide and push the tip of the antenna downward
at the same time. Position the A/C hoses off to the side to aid in the antenna
removal. Snake the signal and power cables outwards to allow for more slack as
you pull the antenna unit out further. The black drain hose connected to the
bottom of the unit will start to come into view.
The old antenna should now be fully exposed;
carefully note how the wires are run through the dashboard and how they are
connected to the old unit. Also note how the grounding braid attaches from the
top of the antenna to the bottom of the unit.
Visually compare the new antenna to the old one
to make sure they are the same. Start setting up the new antenna connections to
match the old antenna's signal and power wiring, ground braid, and drain hose.
This would now be the perfect time to test the new antenna's functionality by
powering up the radio; be careful to allow the mast room to extend sideways out
the passenger door when doing this as the mast comes out fast.
Wiggle the new antenna into place and guide the
top of the mast through the quarter panel mast hole. Screw down the mounting
hardware and nut from the top, and reconnect the mounting strap to the unit
underneath. Position the black hose downwards for proper draining, and test
the antenna with the radio again to make sure all connections
are intact.
Re-install the wheel arch cover with self tapping screws
(carefully making sure
not to puncture the A/C lines or power cable) and glue back the carpet to finish.
The finished job looks good as new.