Are you asking how to replace the entire headlight assembly -OR- how to replace just the headlight bulb? Just the bulb.
autozone.com repair info
Should be a regular #1157 bulb found in any auto parts store.
How do you replace a 1999 Ford Escort headlight bulb?"
To replace the headlight bulb on a 2010 Ford Focus, first, ensure the vehicle is turned off and the keys are removed. Open the hood and locate the back of the headlight assembly. Disconnect the bulb socket by turning it counterclockwise, then remove the old bulb. Insert the new bulb without touching the glass, reconnect the socket, and test the headlight before closing the hood.
the box containing all the bulbs is in the boot,one at each side,pull out old bulb and replace.
To replace the headlight bulb on a 2008 Ford Focus, first, ensure the vehicle is off and the keys are removed. Open the hood and locate the back of the headlight assembly. Disconnect the electrical connector, then twist the old bulb counterclockwise to remove it. Insert the new bulb by twisting it clockwise, reconnect the electrical connector, and test the headlight before closing the hood.
how do you replace the fog light bulb on a 2003 ford explorer.
change it from the inside
You change them from the INSIDE.
See sources and related links below to look at the complete light bulb list for 2007 Ford Focus.
To replace the license plate bulb on a 2004 Ford Focus, first open the trunk and locate the license plate light assembly. Remove the assembly by turning it counter-clockwise or gently prying it out, depending on the design. Once removed, take out the old bulb and replace it with a new one, ensuring it is securely in place. Finally, reinsert the assembly back into its housing and test the light to ensure it works.