Hello and thanks for donating
There are plenty of restoration kits for fogged up headlamps. There is no need to replace the entire assembly. You could try out a restoration kit from a local auto part store, or you can even try home remedies such as the one I have posted below.
Things You'll Need:
A Soft Cotton Cloth
About 2 Table Spoons of Baking Soda
In a small bowl or container, mix two table spoons of baking soda with enough water to make a slightly runny paste.
Dampen your soft cloth. You want it wet enough that it doesn't absorb the water out of the baking soda paste but not enough to make the paste runny or the cloth dripping wet.
Dip your cloth in the paste and scoop out enough paste to cover a quarter to half-dollar sized spot on your headlight. Buff this spot until it is clean. Obviously you will still have the past on there, but as you buff, you will see the lense coming clear.
Continue applying paste and buffing until you've buffed the entire surface. You're paste should be a aweful brown, grey, or yellow color at this point.
I use a foaming window cleaner as it seems to make clean up much easier. You can, however, just use water from the hose; only if its above freezing. Using plain water when it's below freezing will result in extreme difficulty in washing away the baking soda.
Repeat steps on each headlight, tail light, or any other plastic light on the vehicle.
Monday, August 2nd, 2010 AT 9:53 PM