Xtool X100 PAD3 Program Mercedes W211 All Keys Lost with M821 Adapter in 3 Mins

Mercedes W211 All Key Lost successfully done with Xtool X100 Pad3 and the Xtool M821 Adapter in 3 minutes.

Device required:

Xtool X100 PAD3/Pad Elite/H6 Pro/A80 Pro etc

Xtoool KC501 eeprom adapter 

Xtool M821 Benz AKL adapter 

Mercedes BE key

*M821 adapter cannot be used with x100 pad/pad2.

1. Set up connection

x100 pad3 will show you wiring diagram

The brief connection should be like this:

2. Main steps

• Read EIS information
• Read EIS password
• Generate key file
• Write key

Go to Immo-Mercededs-Infrared Key System- Key Programming- All keys lost-W211-Operation on bench (Fast)

When operating on bench, a 120-ohm resistor needs to be connected between CAN-H and CAN-L of some EIS.

Read EIS information

Press OK

Insert the IR key adapter into the EIS

Calculate password success

Press OK and select key position to be generated and key format

Press OK to continue

Then insert a new key into KC501 infrared key slot

Write key successfully.

Go to IR key Function-Read key information

Read new key information and test the new BE key.

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