This item fit for 2014 year or later Mercedes Benz FBS4 cars of S class W222, C class W205, GLC X253 with turn key start only, the car factory key fobs should like the BE or BE4 styles in our listing shows.this item not fit for benz cars with factory OEM push start button.
Plug play installation, no need to solder the car ignition cylinder or solder with factory key's PCB, but need you to un-install the ignition cylinder and un-assemble the car factory key. This item required to be installed by a trained alarm installer only.
If your car is with factory OEM push start button, please buy ESW309C01-N or ESW309C01-N-PP series. if your car is with factory OEM push start button & comfort access, please buy ESW31201-N-PP series.
Add 2 more keys & use same method to turn the key to start the car after finish installation. the keyless entry kit with same car factory key function such as remote lock/unlock, trunk release etc.
You need to do a new programming after finish wiring connection. Refer to programming method.
Require 1pc working factory key's PCB to be put in the control module during installation.