Product Description
Used OEM BMW Engine Control Unit (DDE/ECU) Set for BMW 530D E60 LCI models equipped with the M57N 3.0L Turbo Diesel engine. BMW part number 7809944. Removed from a working vehicle and sold as shown.
This is a complete matched ECU set including the DDE (Engine Control Unit) and CAS3 (Car Access System). The matched components help ensure proper communication between the immobilizer and engine management systems, making this kit ideal for replacing faulty control units or for engine conversion projects.
Please verify compatibility using the part number before purchasing. Coding, programming, or vehicle-specific adaptations may still be required after installation.
Features
• Genuine BMW OEM DDE ECU Set
• Part Number: 7809944
• Engine: M57N 3.0L Turbo Diesel
• Includes DDE (Engine Control Unit) + CAS3 Module
• Complete matched set for easier installation
• Controls fuel injection, turbocharger, ignition, and engine management functions
• Helps avoid immobilizer synchronization issues
• OEM direct replacement
• May require coding/programming after installation
Fitment
• BMW 5 Series E60 LCI 530D
• BMW 5 Series E61 LCI 530D Touring
• Other BMW models equipped with the M57N/M57N2 engine utilizing part number 7809944
Engine: M57N / M57N2 3.0L Turbo Diesel
Model Years: 2007–2010
Please match part number 7809944 with your original unit before purchase.
Item Details
Brand: BMW OEM / Bosch
Part Number: 7809944
Engine: M57N / M57N2 3.0L Turbo Diesel
Condition: Used
Type: Engine Control Unit (DDE/ECU) Set
Included: DDE/ECU + CAS3 Module
Return & Shipping Policy
Returns accepted within 14 days. Item must be in original condition.
Buyer pays return shipping and any customs duties, taxes, or import fees.
All parts are used. Please confirm compatibility before purchasing.
NB: Contact via eBay Messenger for questions.
