Alfa Romeo 147
GTA/Ti headlights conversion guide
Alfa Romeo 147
GTA/Ti headlights conversion guide
This guide will help you to convert the standard headlights on Alfa Romeo 147 into the
GTA/Ti pack headlights with black inner plastic.
Quick guide (for advanced alfisti):
Lift the car
Remove the front wheels
Remove plastic inner wheel arches
Disconnect front turn indicators
Remove the front bumper (disconnect headlight washers first if you have them)
Remove headlights
Open the headlights and paint the inner plastic black or car color
Use silicone sealant to piece the headlight together
Install everything back in reverse order
Step by step guide:
Raise the vehicle.
If you can’t raise the vehicle completely, secure the car against movement (pull handbrake,
cog the rear wheels) and lift the front with two hydraulic jacks.
Remove the bolts fixing under engine protection and remove the protection.
Take off your front wheels.
Unscrew the engine dust protection retaining bolts (red arrows) and remove the protection.
Unscrew the 5 wheel arch bolts (blue arrows), detach the wheel arch and remove it.
This is how the right inner wing looks like without the wheel arch. Follow the same
procedure for the left side of the vehicle.
Remove the lower bolt holding the bumper on the sides (red arrow)
Working from under the wing remove the
two bolts on the inner side of the bumper
(red arrows).
By now, you should have removed all five bolts from under the bumper. The three in the front
(red arrows) you should have removed in step 1 with the under engine protection. The two on
the sides you should have removed in the step 3.
Remove the four bolts on the top of the bumper, under the bonnet (red arrows)
Before removing the bumper, disconnect the front turn indicators (red arrow). You can get
to the connector very easily from under the bumper.
Put some blanket on the ground under the bumper so that it doesn’t scratch itself when you
remove it.
Start removing the bumper. It should go very easy. Start on the side, from the wheel arch.
There are two pins on each side holding the bumper. When the bumper comes off them, the
rest is not difficult.
If you have headlamp washers, remove the bumper only partially, so that you can get to the
pipe connector. It is fine if you can ask second person to hold the bumper for you till you
unplug the connector. You have to unplug the hose entering pressure distributor. That’s the
thing where the hose splits into two separate ones. Use pliers to move the safety-catch
upwards on the hose and unplug the hose (blue arrow) from the pressure distributor. When
you do this, water starts running out of the hose till the water reservoir is empty. You will
need a bucket to catch it. If you don’t want to loose 5,3 liters of your screen washing liquid,
you can have some sort of plug prepared to stop the water running out.
Remove the headlights. Each one is held by three screws (red arrows). Remove them, pull the
headlights partially out and disconnect the connector on the back. To disconnect it easier, plug
the connector fully in as this will loosen the plastic catch inside the connector. Than push the
pin on the back side backwards and unplug the connector.
With a sharp knife or small flat screwdriver try to get out as much sealant as you can from
the groove between plastic headlight body and the glass (it is plastic too, but I will further
refer to it as glass)
There are three pins holding the light together (and sealant of course). Two pins at the
bottom and one on the top of the light cluster (red arrow).
Start dismantling the light from the bottom side, as bottom pins are shorter and easier to
open as the upper one. You will probably need to use wide flat screwdriver as a lever to
loosen the sealant at more places
Don’t rush or use excessive force!!!!! The headlight body isn’t made of very hard plastic
and you can scratch the glass easily too. Take you time and prise off the glass very slowly.
The sealant is very sticky and likes to smudge the glass, your hands and everything around.
When you take the headlight apart, take out the inner chromed plastic of the glass.
Clean the edge of the glass of the sealant. First mechanically, than use some solvent. I used
benzine for technical purposes and it worked quite well. You can clean the glass completely,
but be careful not to scratch it.
Clean the headlight body groove of the sealant. This hasn’t to be perfect, but you have to
make the groove wide and clean enough to be able to fill it with new sealant.
Paint the headlight plastic black or body color if you like.
Don’t forget to degrease it before painting
I used two-compound black polyurethane paint as primer and black glossy spray as final
finish, but you can probably use any primer suitable for plastic and coating. The temperature
inside the light never reaches 100
C and most paints are able to sustain this.
Install the painted plastic into the glass. Work in clean environment, as all dirt will be visible
in your headlight when you seal it.
12. Fill the groove in the headlight body with silicone sealant. I used universal transparent
silicone, as it can be used with almost all materials and stands up from -60C to +150C.
Another good idea is to use silicone for aquariums or neutral silicone that isn’t so acid. I am
sure there are some better sealants, but I had nothing other available at the moment.
Never touch the mirror coating on the reflectors parabola. It is delicate and scratches or
turns matt easily. Don’t clean it with cloth, as dust particles could scratch the surface. If
there is dirt on its surface, try to blow it away with compressed air. If you really have to
clean it, use microfibre cloth and liquid used for cleaning optical instruments, like
photographic lenses. Don’t use any liquids that leave residues. You don’t want the
surface to turn matt.
13. Put the headlamps together. Bind them with some tape and let the sealant dry. You should
open the back side of the headlamp and take out all the bulbs so that the light was vented.
Some sealants release vapors when they are drying and this could cause a dim film on the
glass or parabola. This stands for the plastic you painted too. Although most paints are quickly
dry for the touch, they can release some vapors in the next hours during the process of
hardening. If you seal the painted plastic too early into the headlight, it can’t breathe. Let it
dry outside overnight.
14. Enjoy the result
15. Complete the installation of headlights, bumper, inner arches and wheels following steps 1-8 in
reverse order.
This guide describes how I did the conversion. It may not be complete or something might be not described
detailed enough. Follow this guide at your own risk. Please only attempt this if you feel you are competen t. I’m not
responsible for any damage you might cause. Always use common sense not excessive force. Don’t blame me or this
guid e if you b reak something. It was your choice to try this.
You can use and reproduce this guide and photos it contains freely in any way you consider useful for any
Alfa-owner. You can make it publicly available on any Alfa-Romeo dedicated website, just please let me know about