Launch X431 Diagun

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Join a new era in automotive diagnostics with a little help from the X431 Diagun by Launch, a newly developed wireless automobile diagnostic computer designed for use by automotive technicians.

Please Note: The 1 year subscription package for £1295 + VAT does not include the yellow connector box.

The most advanced device in automobile diagnostic technology, this unique compact scan tool can work on two vehicles at the same time, giving you communication of up to 100 meters. It is also compatible with over 50 leading vehicle manufacturers such as BMW, Audi, Ford and Porsche.

The X431 Diagun handset features Bluetooth technology, a long-range wireless communication system and a hard-wire option so it can be used anywhere.  The ideal tool for technicians on the go, this fast and efficient handset features a high luminance colour touch screen with high resolution to give you better visibility when analysing data readings or when navigating.

Inheriting all of the diagnostic functions from its predecessor, the original X431, this new and improved version features a communication hub that fits all standard 16-pin OBD connectors and receives all software updates via the internet.

Powerful automotive diagnostic functions of the X431 Diagun include:

  • VIN and ECU Recognition for Better Accuracy
  • DPF Status and Regeneration
  • ABS System Bleeding and Servicing
  • SRS Crash Data, Resetting and Configurations
  • Open Automobile Diagnosis Function
  • View live data stream digitally or in wave form
  • Service Resets and Key coding
  • Component Actuations
  • Read / Erase Trouble Codes
  • and many more!

Specifications and Product Functions include:

  • Windows CE 5.0 Operating System with email updates function
  • Colour Touch Screen (10cm x 5.5cm) with stylus
  • Memory Card: 1 GB
  • Bluetooth Range up to 100m and hard wire communication
  • Main Unit Power DC 5V
  • Rechargeable Battery 1530mAh Li-ion
  • Input Connector Voltage 12/24V DC
  • Multi-language Display Function
  • Two Year Warranty from Launch

Extra Information:

  • O.E. specific software across 42 vehicle manufacturers
  • Up to date coverage of European, American and Asian vehicles
  • Petrol, diesel, LPG, hybrid and light commercial vehicles supported
  • User friendly and easy to use for all skill sets

A portable vehicle fault diagnostic scan tool for technicians, the X431 Diagun provides access to the most advanced vehicle diagnosis technology. It gives you the option to scan the engine and auto transmission, turn off SRS airbag lights, ABS lights and service lights, and read and erase fault codes via a live data stream.

The X431 range boasts some of the widest coverage available in a single diagnostic tool. This vehicle coverage includes a wide range of  Asian, American and European cars. Click the tab at the top of this page to see the full list of compatible manufacturers.   

Convenient internet based software updates will keep your powerful Launch Diagun diagnostic tool up-to-date which means the depth and breadth of your garage's diagnostic services are always at their maximum.

We are confident in the quality of our products, even in the demanding environment of garages. The X431 Diagun comes with a two year warranty from Launch.

Important notice: Launch products should only be purchased from authorised Launch dealers, please read this notice on the risks posed to your business by counterfeit / illegally imported units.

Launch Software Updates

We offer the X431 Diagun with two software subscription packages:

  • 1 year software subscription included - £1295.00 + VAT
  • 3 year software subscription included - £1895.00 + VAT

Please note the 1 year subscription package for £1295 + VAT does not include the yellow connector box.

Click here to download a pdf brochure for the X431 Diagun



Unlike the vast majority of other sellers who will only offer a one year warranty, Launch UK are offering an exclusive two year UK warranty on all X431 Diagun units.

Launch X431 Diagun

Customer Reviews

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X431 Diagun Kit Contents

  • X431 Diagun diagnostic unit
  • X431 Diagun Box


  • Chrysler-6
  • Mazda-17
  • Toyota-17
  • GM/VAZ-12
  • Daewoo-12
  • Toyota-22
  • Kia-20
  • Honda-3
  • Suburu-9
  • Ssangyong-20
  • Benz-38
  • BMW-20
  • Ford-6+1
  • Mitsubishi/Hyundai-12+16
  • Nissan-14+16
  • Audi-4
  • Universal-3
  • Fiat-3
  • Ssangyong-14
  • Benz-14

Test Cables

  • Lighter
  • Clipper
  • OBD-II Prolongation Cable
  • X431 Diagun Box Cable


  • CF software memory card
  • CF card reader/writer
  • Host charger
  • Lithium battery
  • X431 Diagun Mainframe Connect Communication cable
  • X431 Diagun USB Printer Cable
  • X431 Diagun USB Upgrade Cable
  • 4 x Clipper fuse 5 x 20mm
  • 2 x Lighter fuse 5 x 30mm
  • Documents
  • X431 Diagun Fault Diagnosis User’s Manual

Mainland UK Addresses

TNT Express (Next Day Service)£15.00

Off-Mainland UK Addresses (including islands and Scottish highlands)

TNT Express (Next Day Service)£20.00

How quickly will my order arrive?
All orders received before 11am will be dispatched same day using a next day delivery service. Orders received after 11am will be dispatched the following working day (Mon – Fri).

How can I track the status of my order?
We will keep you updated with the status of your order via email. Once the order has been dispatched you may track the parcel using the tracking code provided in the ‘confirmation of shipping’ email. If you have any questions regarding your order please email us on or phone 01752 344989.

If you are unsatisfied in any way at all, please return the unwanted item within 14 days of delivery date for a full refund or exchange. The item must be unused and retain its original labels & packaging. Sale items are not returnable or refundable. Click here for full refund terms and conditions.

X431 Vehicle Coverage

Click here to download a .pdf document containing information about system coverage and functionality within the manufacturers listed below.

  • Alfa Romeo
  • Audi - VW – Seat – Skoda
  • BMW
  • Citroen
  • Chrysler
  • Daewoo
  • Daihatsu 
  • Fiat 
  • GM
  • Ford Europe
  • Ford USA
  • Honda 
  • Hyundai
  • Isuzu
  • Kia
  • Jaguar 
  • Land Rover – Range Rover
  • Mazda
  • Mercedes Benz
  • Mercedes Sprinter/Vaneo
  • Mitsubishi
  • Nissan 
  • OBDII/EOBD – Compliant vehicles
    ISO 9141–2, ISO 14230 (KWP2000), SAE J1850 (VPW and PWM), CAN Bus (Using CAN Bus OBDII Software)
  • Vauxhall - Opel 
  • Porsche
  • Peugeot
  • Renault
  • Rover - MG 
  • SAAB
  • Smart
  • Ssangyong
  • Subaru 
  • Suzuki 
  • Toyota/Lexus
  • Volvo

*Exact Coverage and specification subject to change. Please contact us if you require more detailed information.

At Launch UK we understand how important after sales technical support is for helping you to get the most out of your diagnostic tools.

To make it as easy as possible to get technical support you can contact us in several ways:

  • Technical phone support available Monday to Friday 9 am to 5.30 pm 01752 344989 (option 2).
  • Tweet us your questions @launchx431
  • Leave a post on our Facebook page
Activate your warranty.


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