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CAS3 (Car Access System) Control Unit Module
BMW Part Number: 9237047
The CAS3 (Car Access System 3) module is an essential component in BMW and MINI vehicles, managing vehicle access and start authorization. It communicates with the vehicle’s key fob, Engine Control Unit (ECU), and other security-related systems to enable keyless start, key recognition, and anti-theft functions.
This specific module, PN 9237047, is a genuine OEM part, typically sourced from original vehicles or offered as a direct replacement.
Original BMW/MINI OEM part (PN 9237047)
Manages ignition, immobilizer, and keyless entry
Supports key recognition and start authorization
Requires coding/programming to match your vehicle
Works with both manual and automatic transmissions, depending on the model
This CAS3 unit is commonly compatible with the following models:
E81: 3-door hatchback (2007–2012)
E87: 5-door hatchback (2004–2011)
E90: Sedan (2005–2012)
E91: Touring/Wagon (2005–2012)
E92: Coupe (2006–2013)
R56: Hatchback (2007–2013)
⚠️ Note: Compatibility can vary based on engine, transmission, and production date. Always verify with your VIN or consult a BMW specialist before purchase.
Professional installation required
Must be coded/programmed to your vehicle using BMW diagnostic tools (e.g., ISTA, Autel, etc.)
Some cases may require a matching key and ECU if used
Part may be labeled with variants like CAS3, CAS3+, or include manufacturing codes like 61.35-9237047
Usually found near the steering column under the dashboard
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All orders are processed within 1-2 business days. Orders placed on weekends or holidays will be processed the next business day. You will receive a tracking number once your order has shipped, so you can track your package every step of the way.
International customers are responsible for paying any customs duties or taxes that may apply upon delivery. These charges are not included in the shipping cost and vary by country.
If you have any questions regarding shipping, please feel free to contact our customer service team at sales@automanspareparts.com.
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