From the manual for a 2012 MKS
Removal and Installation
With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section 100-02 .
Disconnect the fog lamp electrical connector.
Reaching behind the front bumper cover, release the 6 tabs and remove the fog lamp bezel.
Release the 2 tabs and remove the fog lamp.
To install, reverse the removal procedure