Bring it to the dealer!
Acquire a new headlight. Take old headlight out. Place new headlight in. Voila
Mercedes-Benz A-Class was created in 1997.
Remove the wiring harness from the back of your 2007 Mercedes-Benz headlight. Remove the headlight retaining bolts. The headlight will come out. Reverse the process to install your new headlight.
Mercedes-Benz
Mercedes-Benz G-Class was created in 1979.
Mercedes-Benz M-Class was created in 1997.
Mercedes-Benz CL-Class was created in 1998.
Mercedes-Benz GLK-Class was created in 2008.
Mercedes-Benz E-Class was created in 1995.
Mercedes-Benz CLK-Class was created in 1996.
Mercedes-Benz C-Class was created in 1993.