Click here for a full list of all the bulbs on a fortwo.

In order to to this, you need to remove the fog lamps from the car.

Start off by removing the the front grille. Loosen the two black screws with a Philips screwdriver. Don't loosen the screw in the top right corner as this is your lamp angle adjuster. Instead unclip it like this:

Unplug the connector at the rear by squeezing the metal clips together. Remove the light assembly from the car.

Unscrew the rear cap from the unit.

Squeeze together the metal clips that hold the lamp in place.

Replace the lamp with a new one.

Refit to the car and test.