Video tutorial on how to polishing the inner glass diffuser lenses on a BMW. These inner glass diffuser lenses are available on a variety of BMW models and it is required to split down the headlight assembly in order to access them. This particular video was done on a 1997 BMW 540i E39 body style.

Tools/Supplies Needed:
-bucket of hot water
-soap
-soft sponge
-Autoglym Car Glass Polish
-soft lint free cloth
-microfiber cloth

Procedure:
-remove the glass diffuser lenses from the headlight housing (removal procedures will vary between models)
-wash the glass lenses using a sponge in hot water using your choice of soap (I used Spray Nine)
-ensure most of the debris is removed and allow them to dry
-once dry, using a glass polish (my choice of product was Autoglym Car Glass Polish), apply the polish with a lint free cloth
-applications of the products will vary, please read instructions
-rub glass polishing product into lenses on both sides to ensure it cleans and polishes the surface thoroughly
-finally finish up with a microfiber cloth and polish glass to a shiny finish
-reinstall diffuser lenses