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Xhorse VVDI Key Tool Plus vs. Key Tool MIDI: Which One’s Right for You?

by Laura Solarino 31 Jul 2025 0 Comments
Xhorse VVDI Key Tool Plus vs. Key Tool MIDI: Which One’s Right for You?

Shopping for a powerful car key tool but torn between the Xhorse VVDI Key Tool Plus and the Key Tool MIDI? Don’t worry — we’ll help you break it down in plain, useful terms.

Key Differences That Matter

1. Programming Power

  • Key Tool MIDI is light and compact — ideal for everyday immobilizer (IMMO) programming. Handy for most standard vehicle systems.

  • Key Tool Plus packs the PROG (programming) feature — capable of reading/writing EEPROM, ECU coding, TCU data, and module-level tasks (VW MQB, BMW ISN, Porsche BCM, Mercedes EIS, Jaguar RFA, and more). MIDI doesn’t support these advanced functions.

2. Built-In Features

  • MIDI includes a built-in TPMS adapter out of the box.

  • Plus requires an extra adapter if you want TPMS support.

3. Vehicle Support

  • Key Tool MIDI full version covers most common immobilizer functions, including VAG IMMO5, CAS4/FEM/BDC systems, and MQB/MLB keys.

  • The Plus offers broader support, especially for EEPROM and module-specific work, making it perfect for complex repairs.

4. Size & Portability

  • MIDI is more compact and travel-friendly.

  • Plus is a bit larger but includes more built-in features and processing power.

 Who’s Each Tool Designed For?

Feature VVDI Key Tool MIDI VVDI Key Tool Plus
TPMS Support Built-in Requires extra adapter
EEPROM / PROG Functions ❌ No ✅ Yes — full module & EEPROM programming
Vehicle System Support Good for standard IMMO systems Advanced support for VW MQB, BMW CAS, Mercedes etc.
Size Compact & lightweight Larger, more robust platform
Best For Basic to mid-level IMMO work Heavy duty, module-level locksmith services


So… Which Should You Choose?

  • Pick the Key Tool MIDI if:

    • You want something portable and budget-friendly for everyday IMMO programming.

    • You handle mostly standard immobilizer tasks and want built–in TPMS support.

  • Go with the Key Tool Plus if:

    • You do advanced locksmithing work — EEPROM, ECU, module programming.

    • You work on a wide variety of vehicles including VW, BMW, Mercedes, Porsche, etc.

    • You want the most complete all-in-one diagnostic and programming tool.

Comparison Summary 

Both tools offer excellent value and are backed by Xhorse’s reputation. If portability and basic IMMO programming are your top priority, Key Tool MIDI is a solid pick. If you want the most capable tool for advanced, module-level diagnostics and programming, then Key Tool Plus is the better investment.

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