Remove the front panels from the car.
Remove the Torx screws from the light units and remove them.

Repeat with the other light and take them into the warm.

Carefully, using a knife or dental tools, remove as much of the sealant as possible.
The sealant runs all the way around and sits in a trough so this process can take time
but is essential to the removal of the glass cover.

When you cannot physically remove any more sealant it’s time to get out the heat gun.
Evenly heat up the edge of the glass all the way around, this softens the remaining sealant.

With a plastic utensil, lever the glass cover away from the back. Work all the way around
the edge evenly to avoid stressing the glass cover. Eventually the glass should come off.

Look into the back of the indicator hole, you will see a small clip. Lever this
upwards slightly and push the clear plastic diffuser out of the unit.

With the diffuser removed you can now tint it with tinting spray if required.

Clear out the channels of any remaining sealant.

Using 600 to 800 grit sandpaper, remove the silver coating from the front of the light.
If your units have fog lights then either be careful as you sand near them or
attempt to remove them by removing any fixings from the back.

Clean the unit with a tack cloth before spraying. Do several light coats in your preferred colour, allow at least 15 minutes between coats and always spray in a warm ventilated place. Replace the indicator diffuser when the paint has fully dried, this usually takes 24 hours.

Using Sikaflex, Tigerseal or another type of polyurethane bonding adhesive, create a
bead in the trough all the way around. As a last resort you could use silicone sealant
but there are no guarantees the glass will stay in place.

Clean the glass on the inside with a microfibre cloth to remove any fingerprints then
lower it onto the sealant. Ensure that the sealant is being slightly pushed out all the
way around so it can seal correctly. Tape the glass to the back and leave for another
24 hours in warm conditions to allow the sealant to go off.

Refit to the car and admire your new look lights.

Job done.