KOTU
Member
Just this past week I repaired the third brake light on my '07 Lincoln Navigator L. Mine had five 5W5 bulbs. They are the same bulbs that are used to illuminate the license plate. After getting the light fixture out from the truck's roof and taking it apart, I saw that over the years the heat from the bulbs had melted the mirrored plastic reflectors. The reflectors are shaped like a line of V(s) with the bulbs in the V's valley. In addition to this, moisture seems to have gotten in and separated the mirrored reflective material from the transparent plastic. I used aluminum insulation tape to recreate the reflectors and installed five Sylvania #2825 led bulbs. The 2825 bulbs are polarized and need to be installed with positive and negative poles in mind. To test the reassembled fixture, I let it dangle from the wire. I depressed the brake pedal while looking into the rearview mirror. Just one of the bulbs had to be reversed.