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Mercedes Benz Smart Key teach

Mercedes Benz Smart Key teach

Mercedes Benz Smart Key teach
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  • Auto Key Programmer
  • Brand:
  • Launch X431
  • Model:
  • for Mercedes Benz Smart vehicles
  • Comments:
  • SMART Key teach-in for Mercedes-Benz Smart vehicles

    MB- Smart vehicles dongle key programmer
  • Update Time:
  • 11-19-2017
Detail Information

SMART Key teach-in for Mercedes-Benz Smart vehicles


MB- Smart vehicles dongle key programmer


SMART Teach-in is required when keys are lost, damaged or if additional key is needed.


Also, this procedure synchronizes engine ECU with BSI – can be used when changing damaged ECU or BSI with new/used one!


For adapting each remote with Immobilizer / BSI module the following dongle can be used:


1. Turn ignition ON without starting engine (position ?1”).


2. Insert dongle in OBD connector (it is located under steering column, near pedals).


3. The LEDs must lit both, then green must blink few times. If all OK, green LED remains lit and red must be off. If red LED blinks fast, this means an error, you may remove dongle and try again.


4. If red LED is off and green is on, turn OFF the ignition key.


5. Press twice LOCK button on each remote (if 3 button remote used) within 30 sec. Maximum of 4 keys can be programmed.


6. Turn ignition ON again, this completes learning sequence. Remote controls are working only when ignition is OFF, cranking is possible only when vehicle is in UNLOCK-ed state.


Mercedes Benz Smart Key teach
  • Mercedes Benz Smart Key teach
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