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BMW EWS Immo Emulator Bypass EWS2 EWS3.2 Immobiliser Module

BMW Immo Emulator is individually programmed according to ISN code read with INPA (The customer sends us the ISN code). Replaces original immobiliser signal in the case of losing car keys, damage of the transmitter or immobiliser module.
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B-M-W EWS Immo Emulator

The emulator is individually programmed according to ISN code read with INPA (The customer sends us the ISN code).

  • Replaces original immobiliser signal in the case of losing car keys, damage of the transmitter or immobiliser module.
  • It is suitable for cars with EWS II and EWS III 3.2 systems
    • – E36 until the end of production
    • – E34 until the end of production-E38 up to 05.1997
    • – E39 up to 09.1997
      • – Z3 up to 1999

Note: Emulator is shipped with JUMPER 1 shorted. For testing purposes ISN 0579 is stored by default.


1. Remove original EWS2 control unit, find +12v ACC, GND, K-line wires, attach emulator. Emulator must be in service mode:JUMPER 1 shorted.
2. Connect ANY K-line diagnostic adapter (D-CAN, INPA K+CAN, VCDS...) to OBD Port and launch EMULATOR CONFIGURATION UTILITY:


3. Choose COM port, write in desired ISN number, press button Store. Or -
4. For some ECU s it is possible to read ISN number directly from engine control unit. In this case select option "ECU xxxxx", press Read. Software will try to read ISN. If successful, choose option "EWS emulator" and press button Store to save ISN number into emulator.
5. Disconnect emulator from K-line, remove JUMPER 1 and connect K output from emulator to
DME(DDE) <-> EWS line.
6. Don't forget to short two starter relay wires (EWS connector)!
7. Car is ready to start.

EWS wire connection

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