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Launch GIII X-Prog 3 Advanced Immobilizer & Key Programmer Plus MCU3 Adapter Work on Mercedes Benz All Keys Lost and ECU TCU Reading   X-431 GIII X-PROG 3 advanced immobilizer & key programmer is a powerful chip reading device that can read and write keys to the vehicle. X-PROG 3 supports anti-theft type identification, remote control matching, k..

Launch X431 MCU3 Adapter for X-PROG3 GIII Work on Mercedes Benz All Keys Lost and ECU TCU Reading To program Mercedes all keys lost with X431 V, X431 V+, Pro5, Pros, Pro3S, X431 PAD V, PAD VII and X-PROG3 GIII, you will need to connect the MCU3 adapter to X-PROG3 correctly. Adapter board code: 307140131 Equipment configuration: non-standar..