OBD2TOOL Official BLOG

Here is the instruction on programming 3 button remote key for Mercedes Smart Fortwo 451 up to 2013 by using original SuperOBD SKP-900 Key Programmer.

Instruction:
Note: Do follow every IGN ON & OFF operation.

Connect SKP900 with vehicle via OBD diagnostic socket

Select IMMOBILIZER

Select Vehicle Brand: SMART

Select model: BR451

Loading
INFO: Remote will adapt when key programming finish

Select Immobilizer system

Choose OBDII adapter, Turn ignition ON

SKP-900 will display VIN/FIN code

Select PROGRAM KEY

Adapt 6 keys most

Turn ignition ON
Programming…
Turn ignition OFF
Turn ignition ON
Programming…
Program Finish. Press YES to program next key (or NO to go back).

Turn ignition OFF

Insert new key. Turn ignition ON
Programming…

Turn ignition OFF
Turn ignition ON
Program Finish.

Test the new programmed remote key.

PS:

SKP900 key programmer support following Smart cars list.