CAS Slot Assignment

Reading the numbered key positions the CAS keeps — used, available, disabled or lost — and picking the slot a new key is generated for. It is also how the slot of a lost key is disabled so that key can no longer authorise a start.

Documented repairs

MINI Cooper Key Programming: CAS3 Key Add on a 2012 Cooper S

2012 MINI Cooper S (R56, N18 1.6L Turbo)

Programming two customer-supplied fobs to a 2012 MINI Cooper S — reading the CAS3/3+ immobiliser data, picking free key slots and personalising each transponder.

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Components

• Aftermarket Key Fob

Engines

• N18 1.6L Turbo

Models

• R56 MINI Cooper S

Repairs by System

• Electrical
• Immobiliser
• Programming

Symptoms

• Unprogrammed Key Fob