![]() If the VIN number isn't consistent, the car will not start.Īlso the EWS has a password feature called the "Rolling Code" which changes between the modules every time that the car is turned off. ![]() This module compares the VIN number of the car between different electronic modules in the car. The new anti-theft technology is a device called the "EWS", which is also known as the "Immobilizer". How can you help me?Įver since December of 1994 BMW added a new Engine Management technology as an anti-theft measure. My mechanic/dealership says that you can’t reprogram, re-code, or swap a used BMW ECU between cars. We hope to help answer and give you solutions to the most commonly asked questions. There are many "myths" and misunderstandings about BMW ECU / DME reprogramming.
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