Used OEM Auto Part ? Mercedes SAM Signal Acquisition Module Relay Fuse Box BCM Control A2129005912 ? Tested Functional Condition: Pre-owned genuine part. Tested and in good working condition. Minor cosmetic wear present that does not affect function. Please review photos. Interchange / Compatibility: Will replace the exact same part number only. Not suitable for upgrades or retrofits. Match part numbers exactly to ensure compatibility. VIN PROGRAMMING REQUIRED. Security Notice: All electronic modules are marked with UV ink and/or engraving for fraud prevention and traceability. Important: We may request your VIN or additional vehicle information before shipping. Please monitor your messages and email. Eco Commitment: At DUKA-PARTS, we provide high-quality recycled OEM auto parts to support sustainability. All orders ship in eco-friendly packaging using recycled materials. Keywords: Computer ECU Modulet, OEM Replacement, Mercedes SAM Signal Acquisition Module Relay Fuse Box BCM Control A2129005912 , control unit, brain box, engine computer, powertrain control, logic module, vehicle computer, processor unit, electronic unit, ECM replacement, PCM unit, power control module, computer box, unit controller, auto ECU, drive computer, ECU board, onboard computer, power module, system controller, transmission control unit, chassis control, car computer, automotive ECU, central control module, ignition controller, ECM controller, ECU replacement, drive module, engine control processor, electronic brain, smart module, vehicle logic unit, diagnostic computer, plug and play ECU, rebuilt PCM, refurbished ECM, remanufactured control unit, tested ECU, OE control module, OEM ECU, performance ECU, upgraded ECM, tuning module, car logic controller, replacement PCM, diagnostic module, ECM brain, flashable ECU, programmable ECM, OEM , Powered by SixBit's eCommerce Solution