Xhorse Universal Mercedes Benz FBS3 Smart Key PCB Keyless Entry W204/207/212/164/166/221 315/433MHz XSBZ01EN

This Xhorse Universal FBS3 key PCB is a replacement remote circuit board used to create or replace a Mercedes smart key for vehicles equipped with the FBS3 keyless entry system. It typically:

• Supports dual frequency 315 MHz and 433 MHz, which can be set via Xhorse programming tools (e.g., VVDI MB software) or by adjusting components on the PCB.

• Is compatible with Mercedes chassis such as W204, W207, W212, W164, W166, W221 (various C‑Class, E‑Class, S‑Class, ML/GL series from ~2009+).

• Often does not include a key shell/case by default — that may be purchased separately if needed (some product listings bundle them).

• Requires programming and key cutting with appropriate tools (e.g., Xhorse key programmers) before it will work with your car.