Electronic immobiliser

2013 Mini Cooper Countryman, Standard TransSECTION Electronic immobiliser
WARNING: This page does not describe the selected car, but rather 45 other vehicles, including the 2016 BMW M5, 2016 BMW 550i xDrive, 2016 BMW 550i, 2016 BMW 535i xDrive, and 2016 BMW 535i. However, it is still accessible from the selected car via links, so may be relevant.

The electronic immobiliser is both an anti-theft system and start enable device. The electronic immobiliser uses modern encryption. Each vehicle is assigned a 128-bit code. This code is stored in a BMW database. This means that the code is known only to BMW. The code is programmed in the Car Access System (CAS) and the Digital Engine Electronics (DME) and is locked. When the code is in the control units, it can no longer be deleted or changed. This means that each control unit is assigned to a certain vehicle. The Car Access System (CAS) and the electronic immobiliser (EWS) mutually identify one another with the code and the same algorithm. If the identification data is correct, the Car Access System (CAS) activates the starter motor via a relay in the control unit. At the same time, the Car Access System (CAS) sends the Digital Engine Electronics (DME) a coded enable signal (random code) for the engine start. The Digital Engine Electronics (DME) only enable the engine start if a correct enable signal has arrived from the Car Access System (CAS). These operations may result in a slight delay in starting (up to half a second).

Notes for Service department 

RENDER: 1.0x

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