Xhorse VVDI Key Tool Plus vs. Key Tool MIDI, Which to Buy?

Choosing between the Xhorse VVDI Key Tool Plus and Key Tool MIDI? This comparison breaks down their key differences in immobilizer programming, module support and functionality. Discover which tool suits your needs for automotive locksmithing and diagnostics in this detailed guide.

Comparison Table

Item	VVDI Key Tool Plus	VVDI Key Tool MIDI
Image
Immo Programming	One-Step Solution	Value-for Money Choice
Mercedes-Benz FBS3	√	×
VW/Audi/Skoda 4th Gen	√	√ (Some models require a programmer)
VW/Audi/Skoda MQB	√	√ (Some models require a programmer)
Audi 5th Gen	√	√ (Some models require a programmer)
Audi/Porsche MLB models	√ (Works with MLB-TOOL adapter)	√ (Works with MLB-TOOL adapter)
BMW CAS1-3	√	√ (Some models require a programmer)
BMW CAS4/FEM/BDC	√	√ (Some models require a programmer)
Porsche	√	√ (Some models require a programmer)
Land Rover/Jaguar 2015-2018	√	√ (Some models require a programmer)
Land Rover/Jaguar 2018-	√	√ (Some models require a programmer)
Volvo	√	√ (Some models require a programmer)
Other common models	√	√ (Some models require a programmer)
Programmer
8-pin EEPROM	√	√
IMMO Module	√	×
Instrument Cluster Module	√	×
Transmission Module	√	×
ECU Module	√	×
Vehicle Diagnostic Function	√	√
Transponder Identification and Clone	√	√
IMMO Data Tool	√	√
Remote Generation	√	√
Key Cutting(App)	√	√
Cloud Diagnosis Mode-C	√	√
TPMS Functionality(works with TPMS Adapter)	√	√

Characteristics

Key Tool Plus

Comprehensive – Covers more immobilizer systems (e.g., Mercedes FBS3) without extra tools.
Built-in Programmer – Handles IMMO, cluster, transmission and ECU modules directly.
Best for Professionals – Ideal for locksmiths and auto technicians needing full functionality.

Key Tool MIDI

Budget-Friendly – Lower cost but requires additional tools for some models.
Limited Module Programming – No built-in support for IMMO/cluster/ECU programming.
Good for Basic Needs – Suitable for users who don’t need advanced module programming.

VVDI Key Tool MIDI vs VVDI Key Tool Plus :

1. Hardware & Form Factor

Key Tool MIDI is more compact and lightweight, optimized for portability—great for on-the-go use.
Key Tool Plus is a larger, full-featured tablet-style unit, housing more powerful hardware for intensive tasks.

2. TPMS Functionality

MIDI comes with an integrated TPMS adapter, supporting sensor programming and activation right out of the box.
Plus requires a separate adapter for TPMS support—it doesn’t include it by default.

3. IMMOBILIZER (IMMO) Capabilities

Both tools offer extensive IMMO functionality, capable of handling key programming for a wide range of VW/Audi MQB/MLB systems, BMW CAS systems, etc., when upgraded appropriately.
Key Tool Plus edges out slightly by offering more comprehensive support for EEPROM and module-level tasks, but basic IMMO support is similar.

4. PROG (Programming) Features

Key Tool Plus includes full PROG functionality, enabling reading/writing of EEPROMs, ECU modules, TCU units, ISN data, gearbox clustering, and more.
MIDI only supports basic 8-pin chip and limited CAS/BCM module reads. For advanced tasks, external VVDI PROG or MULTI PROG modules are required.

Recommendations

Choose Key Tool Plus if:

– You work with Mercedes FBS3 or advanced immobilizer systems.

– You need built-in module programming (IMMO, cluster, ECU).

– You want an all-in-one solution without extra devices.

Choose Key Tool MIDI if:

– You’re on a budget and can use additional programmers when needed.

– You mainly work with common models (VW, Audi, BMW, etc.) where partial support suffices.

– You don’t need advanced module programming.

Summary

The Xhorse VVDI Key Tool Plus is the superior choice for professionals needing full immobilizer and module programming support, while the Key Tool MIDI is a cost-effective option for basic key programming and diagnostics. Your choice depends on budget and workflow requirements – opt for Plus for advanced features or MIDI for essential functions.