How to Update Xhorse VVDI FBS3 Benz Smart Key

This is a guide on how to use Xhorse VVDI Key Tool Plus to update Mercedes-Benz FBS3 Smart Key without cutting the resistor off step by step. Also includes the procedure to set frequency and collect bonus points.

How to update MB FBS3 smart key?

Assemble the Benz FBS3 Key to put a battery in, then insert into Key Tool Plus.

Immo programming >> Benz >> Select from system >>Read write key >> VVDI BE key >> Start programming >> Upgrade VVDI BE smart key

Insert MB smart key into device IR coil and press OK!

Please select the version to be upgrade: 1.1.4

Press “Yes” to continue.

Update MB smart key to success!

How to set BE key frequency?

Set BE key frequency >> 315MHz

Set frequence success!

How to verify & collect BE key bonus points?

Click “Online verify BE key”.

Online check VVDI BE Key status, whether it contains bonus points or not. This function only verify, you can use upload points move BE key bonus points to your device.

Input VVDI BE key to device and press OK.

We can see this BE key has bonus points.

Click “Collect bonus points”.

Transfer VVDI BE key bonus points to your device. After upload success, the BE key will not contain bonus points.

Input VVDI BE key to device and press OK.

Success upload bonus points to your device!

Xhorse Benz FBS3 Smart Key Battery Issue Solution

 Due to the design flaws of a few OEM shells, pressing the button forcefully may cause a short circuit on the circuit board, resulting in battery leakage.

 
To avoid this problem, it is recommended to put insulating tape on the Xhorse vvdi Benz FBS3 smart key PCB area shown in the figure below.

This PCB works as a replacement for Mercedes IR Prox Keys in E Class, C Class, S Class, ML Series, and GL Series with the EIS Modules listed below from 2009 to 2015 as long as they are FSB3 Systems.

• This PCB Supports Manual Starting, Keyless Entry, and PTS (Push To Start) Functions
• The PCB works with FBS3 Systems using these EIS Modules: W204, W207, W212, W164, W166, W221
• 315 Mhz and 433 MHz Frequency Compatibility (Set In VVDI MB Software Or By Component Change)
• A working battery is not required for IR Key Information writing
• With Free 200 bonus points
• compatible with other Benz key programming tools

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