how to change the headlight on a 1999 mercury marquis
Dec 23, 2010 at 4:22 PM
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JACOBANDNICKOLAS
✓Experienced Mechanic
110,248 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.