A new feature has been introduced to Xhorse VVDI Key Tool Plus for adding spare keys in the MQB 5C immobilizer system. This guide walks through the process while highlighting critical pitfalls to avoid, as a simple mistake can permanently disable a vehicle’s only key. Step-by-Step Process Accessing the Function: Start by selecting the vehicle brand (e.g., Volkswagen), then navigate to Immobilizer > MQB system. Choose the MQB49 5C specific system, in this case, Instrument MQB 495C (5C), and confirm the selection. Reading the Key: Two main options appear for reading the key data: one for standard keys and another for “smart” keys. The correct choice depends on your key type. The crucial step is selecting the “Disassemble key and read data” option. Critical Hardware Warning: The procedure requires connecting cables to the key’s circuit board. A major warning is issued here: the cable colors are misleading. Two cable versions exist: MCU V1.0 and ...