Description
OEM part number 6943851. BMW E60 5 Series and E61 Touring (early production, 2002–2005) second-generation Car Access System (CAS2) control module. Genuine used, tested to confirm correct operation before despatch. ¶ The CAS2 is a VIN-specific security module responsible for immobiliser operation, encrypted key authentication, engine start authorisation, and remote central locking. It communicates directly with the engine ECU and key transponders, permitting or preventing engine starting based on cryptographic key matching. ¶ Typical failures present as the engine refusing to start, the key not being recognised by the system, remote central locking becoming unresponsive, or multiple CAS-related fault codes stored in the vehicle’s diagnostic memory. ¶ Matches OEM specification for the vehicles listed. Professional installation is essential — BMW ISTA coding, ISN synchronisation with the engine ECU, and key adaptation are all required steps. Not suitable for DIY installation.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
