BENZ ESL Reseter is a device to erase EEPROM memory in both of old (W202, 208, 210) and new (203, 208, 211, 639) ESL types .
you can use it for fast unlocking when you need to evacuate the car and those erased ESL will be comparable to any other MB car which use the same old type ESL in place of damaged one.
lessort