Owners of other Ford or Lincoln vehicles such as the Focus, Fusion, C-Max, Mustang, Escape, Transit Connect, Edge, Flex, Explorer, Expedition, Taurus, F-150, EcoSport, MKC, MKZ, MKS, MKX, MKT and the Navigator may also find these DIY instructions to be helpful.

The replacement bulbs with their part numbers are as follows: Low Beam # H11, High Beam # H1, Front Turn Signal # 3157NAK (also 3157NA or 3157A) and Side Marker # 168.

No tools are required to change the low beam, high beam or front turn signal bulbs.

If you'd like to replace the side marker or you'd prefer to remove the entire headlight assembly from the vehicle, you'll need a Torx T-30 star bit screwdriver and a Phillips head screwdriver.

It is possible to just reach behind the assembly to access the low beam, high beam or front turn signal bulbs. This first method requires no tools but can be a bit difficult if you have large hands.

The alternative method is to detach the entire headlight housing from the front of the vehicle. If you'd prefer this method, scroll down to the bottom third of this page for the headlight assembly removal instructions.

Taking off the headlight assembly is also the only way to access the front side marker bulbs.

The Low Beam bulb is located closer to the outer edge of the housing.

Pull off the rubber dust cover and set it aside in a safe place.

Gently pull back the retaining clip and slide the electrical connector straight off the base of the old bulb.

Rotate the base of the old bulb 1/4 turn counterclockwise before pulling it out of the housing.

Insert the new # H11 low beam bulb in to the housing and rotate it 1/4 turn clockwise to secure it in place.

Push the electrical connector straight on to the base of the new bulb.

The High Beam bulb is located near the inner corner of the headlight housing.

Pull the old high beam bulb straight out of the housing.

If you do get the new bulb dirty, wipe it off with a rubbing alcohol moistened paper towel.

Insert the new H1 high beam bulb in to the socket.

Due to the bulb's irregularly shaped metal base, it can only be inserted in one way.

Push the black plastic power plug straight on to the base of the new high beam bulb.

The Front Turn Signal light bulb socket is located at the inner corner of the housing.

Pull the old bulb straight out of the socket.

Test the new bulbs by turning on the headlights, activating the hazard signals and flashing the high beams.

If you need to change a burnt out front side marker bulb or you'd like to take off the entire headlight assembly, follow the steps below.

Remove the screw near the rear outer corner of the assembly by turning it counterclockwise with a Torx T-30 star bit screwdriver.

Set the two screws aside in a safe place.

Once the plastic screw has been loosened, you can pull out the entire fastener and set it aside with the two screws.

Carefully pull the headlight assembly off the front of the car.

Turn over the housing to access the headlight bulbs.

Rotate the small black plastic bulb socket 1/4 turn counterclockwise and pull it straight out of the housing.

Pull the old bulb straight out of the socket.

If necessary, you may also use any other miniature wedge base bulbs such as the # 158, W5W, 2825, 194 or a compatible LED unit.

Re-insert the side marker socket in to the housing and rotate it 1/4 turn clockwise to secure it in place.

Re-insert the the two bolts and spin them in a turn or two in the clockwise direction.

Tighten the two Torx T30 screws by turning them clockwise until they are snug.

Try to avoid over tightening the screws to prevent from cracking the plastic edges of the housing.

Test the new side marker and other bulbs by turning on the headlights, activating the hazard signals and flashing the high beams.

For more, check out my other 2009-2015 Ford Fiesta DIY Repair & Maintenance Guides.