how to change the headlight on a 1999 mercury marquis
Dec 24, 2010 at 12:22 AM
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JACOBANDNICKOLAS
CERTIFIED EXPERT
110,175 POSTS
To replace the headlight, you need to access the socket from under the hood. Turn it aprox 1/4 turn counter clockwise and it will come out. When replacing the new bulb, try to avoid touching the glass on it.