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Launch X431 Diagun ScreenClick to enlarge product image
Launch X431 Diagun Screen

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Diagun with full UK & Europe software (now only 3 pcs left)

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Ex- Demonstration models  Only 3 pieces of these left now

PLEASE NOTE: There are no more at this price when these are gone


Original Launch X-431 DIAGUN



THE UK, European Spec with additional USA Ford & Aussie Holden & more

Full UK warranty and free software

Simple To Use With A Multi Language Menu


Product Details: 
-Compact professional tool for automobile technicians
-This is the only diagnostic tool that can link to two vehicles at the same time
-Bluetooth technology, wireless communication. 100 m Bluetooth communication
-Cable communication support
-Universal 16PIN connector
-Full inherited diagnostic functions from X-431
-Suitable for nearly all domestic vehicles makes, Asia, Europe, USA   
-Greatly improved program running speed 
-More convenient software update 
-4.3 inch high luminance, high resolution color touch screen
-1530mAh Rechargeable battery
-1G memory card 
-Standard USB printer connector, external printer support 
-Updates via Diagnostics4u
The Launch Diagun Full KitThe Launch Diagun Set
The above photos are of the FULL diagun kit. Empty spaces in the sponge mould are for 1 extra Bluetooth and other Diagun battery chargers that can be bought separately but they are not essential


  • Covers some 60 car manufacturers for the UK, Asian, European and USA etc
  • Reading and erasing stored trouble codes (DTC)
  • Display of error codes as code number and description
  • Display live data streams and customised data lists
  • Delete auto-adaptive values (engine or automatic transmission)
  • Basic settings (TPS throttle, ESP, transmission)*
  • Coding and Programming (Depending on manufacturer)
  • Service interval reset (long life service, particle filter maintenance)
  • Calibration (injector calibration FORD, Renault, MAZDA etc )
  • Reset language of instrument cluster
  • Key Coding( for some cars )
  • CAN-BUS Diagnostics
  • Xenon Light Support and Basic Settings
  • Comfort Systems (Seat, Door, Navigation)
  • Maintenance support: Reset of parking brakes (SBC, EPB), ABS bleeding

Typical Systems Covered Depending Upon Model:

Petrol & Diesel Engines, ABS, Airbags, Auto Transmission, Immobiliser, Key Coding, Cruise Control, Instruments, Body Systems, Self Levelling Suspension, Seats, Doors, Gateway, Steering Angle, Air Suspension, Electronic Power Steering & Motor Assisted, Power Steering, Tyre Pressure, Rain Sensors, 4WD System, Stabiliser, Intelligent Parking Assist, Door Motors, Audio Systems, Air Conditioning, Tiptronic, Anti Theft, Soft Top, Headlamp Levelling, Central Locking, Automatic Clutch, DPF Reset, Electric Windows,Plip Programming, Heated Rear Window, Xenon Headlights, Wash Wipe, Fuel Burning Heater, Transfer Box, Seat Memory, Oil Life Service Reset, Sliding Doors, Electronic Throttle, Navigation System, Rollover Sensor, Cruise Control, Multi Function Steering Wheel, Aux Heating, Electronic Parking Brake, Clutch Electronics, ....etc, etc

Languages to Choose in the Menu








Portuguese (Brazil)




-Operating System: WIN CE 5.0
-CPU: 400 MHz ARM9 Memory Card: 1G TF
-Main Unit: Universal Serial Bus/USB
-Main Unit Power: DC5V
-Printer Interface: USB
-Display Screen: 480X272, 4.3-inch LCD with touch
-Rechargeable Battery: 1530 mAh
-Bluetooth: theoretically 100m, actually 15-20m
-Upgrade Interface: USB

New Full Kit Diagun III Also Available - http://www.diagnostics4u.com/prod/163/latest-new-launch-diagun-iii


IMPORTANT: NEVER use Jump Leads, Start Booster or other sources of External Power while tester is connected to diagnostic socket because it will damage the diagnostic Main Unit. Do not connect or disconnect a diagnostic tool whilst the engine is running since the tool may be damaged





  • Alfa Romeo
  • Audi
  • BMW
  • Chevrolet
  • Chrysler
  • Citroen
  • Dacia
  • Daewoo
  • Daihatsu
  • Fiat
  • Ford
  • GMC
  • Holden
  • Honda
  • Hyundai
  • Isuzu
  • Jaguar
  • Kia
  • Lancia
  • Land Rover
  • Lexus
  • Mazda
  • Mercedes Sprinter
  • Mercedes-Benz
  • Mitsubishi
  • Nissan
  • Opel
  • Peugeot
  • Porsche
  • Range Rover
  • Renault
  • Rover
  • Saab
  • Seat
  • Skoda
  • Smart
  • Ssangyong
  • Subaru
  • Suzuki
  • Tata
  • Toyota
  • Vauxhall
  • VAZ
  • Volkswagen
  • Volvo
1 Unit: $622.65
2 - 9 Units: $622.65
10 - 24 Units: $0.00
25 - 49 Units: $0.00
50 - 99 Units: $0.00
100 - 249 Units: $0.00
250 - 499 Units: $0.00
500 - 999 Units: $0.00
1000+ Units: $622.65
  • *****Amazing!

    By Dmitriy Kalani

    This is the best tool i tried yet and the price is very good does everything and is easy to use which is what i wanted perfect for my business. delivery was fast to russia took 3 days thank you

  • *****best tool for the price amazing deal

    By Rick Walker

    i looked everywhere for this tool and you guys were the cheapest i found. awesome all round service as well! also this tool is very easy to use. anyone out there looking for a professional tool this is the one to go for, works on a huge amount of cars and seems to do everything. ive got another tool here i paid 4,000 for which im gonna sell now ive got this baby!

  • *****Launch X431 Master

    By Yoniinfante

    for thoes who already bought this amazing machine...thise it read od1 cars like nissan obd1it comes with everything to hook up any car!!!

  • *****Excellent Launch X431 Diagun

    By Dr David Bennett

    A fantastic bit of kit, invaluable for use in keeping Emergency vehicles on the road. Purchased this Diagun after light came on a Volvo. Main dealer wanted 50 plus vat for 1 test. Purchased own Diagun, located fault code in seconds and the fault in full. Light Reset after locating fault. This equipment is invaluable for ALL, and literally will save the public many hundreds of pounds, and small garages thousands in a matter of a few years. Highly recommended equipment, and fantastic service from Diagnostics 4U. We also assist our Armed Services personnel in use of this equipment aiding them finding employment in it's use. Thanks to Diagnostics4U for you and ALL THEIR SUPPORT and HELP.

  • *****very good

    By Lee best

    a very good product ive used a snap on solus plus and this diagun is alot better well worth to get one

  • *****Diagun

    By Richard Knowles

    Excellent service, works a dream very impressed, also phone support and guidance first rate,
    These guys are very helpful on phone and i got exactly what i ordered, very impressed with machine best thing being able to leave machine plugged in to do diagnostic scan while car up in the air on ramp getting on with other repairs.

  • *****Best buy

    By Malcolm

    Without doubt this is the best bang for bucks I've bought in a long time. Super fast and super efficient. Staff are very knowledgable and friendly. I'll certainly be buying other products from them in the future.

  • *****Diagun x431

    By Active Autos

    I have been in the automotive business for near on 25 years. I have had several diagnostics machines, the last one I had was the Snap on Solus. I was informed by my snap on rep that it was the best on the market, hence the high price of the machine. After 2 years living with this machine I found it good on some vehicles but could not link up to most...I decided to purchase the DIAGUN X431 after a college of mine suggested it.... Well what a bit of kit.... This machine is compact and very user friendly. I have had the machine for 3 months now and it has worked on every car... BRILLIANT! I would also like to mention the excellent customer service provided by Diagnostics4u, especially to Mike who is always happy to help.


    By Issy khan

    I am mobile diagnostic technician...and purchased the Diagun 6 months ago. thus i am writing this review after 6 months of continuous use.

    The Diagun covers almost all known car makes and plus 10-15 other makes you may never see or use!! such as Holden

    but covers all the common known marquees such as VW, Audi, BMW, Mercedes, Vauxhall, Ford, Honda, KIA, Fiat and Toyota just to name a few....so it has a vast coverage of vehicles!!

    It is very simple to use including programming and special functions as all instructions are guided on screen...i have used this tool to code injectors in Vauxhall and Ford vehicles, i have adapted the clutch in a semi auto Toyota verso and calibrated Ride/ suspension height in a Range Rover sport.

    IF ANY HELP IS REQUIRED IN USING THIS TOOL, I CAN PERSONALLY HELP.....ask Diagnostics4U for UK Diagnostics contact details.

    the amazing functions and diagnostic abilities is complimented by its size....this is a super computer in the palm of your hands!!

    with the constant available updates, this makes this tool a must have choice!!! RECOMMENDED TO ALL GARAGES AND INDIVIDUALS A++++

    Call UK Diagnostics: 07904 371 888 in Greater London area for all diagnostics including Remapping - DPF Removal - Airbag Crash Data & more

  • *****Paid for itself in the first 8 weeks

    By Michael Kenny

    Well I've been using the Diagun for 7 months now. Before this I have tried all the so-called professional tools over the years costing thousands of pounds, but none of those tools compare with this one.

    Sure, for dealer level functions in manufacturers cars you can buy MB Star, GTI, VAG COM, Lexia etc etc but you cannot buy a universal tool as good as this one covering so many different cars and so many different systems, even if you paid 10 times more money.

    If you want a tool that does everything, stop looking because nobody makes one. If you want the next best thing, definitely get one of these

    5 stars is the most I can give here, should be 50 stars for the price. 10/10 for this tool and 10/10 for value

  • *****Really, Really Good

    By Charlie

    I read all the reviews here and did some careful research and after 3 weeks I finally took the plunge and bought one. That was 5 months ago and so far I am really pleased. I agree with everything said in the other reviews here. These really are the genuine Launch tools and as other people have said, the Diagun is a fantastic professional diagnostic tool. I'm still learning new things to do with it every week because it's much more powerful than I ever thought. The functions available for so many cars constantly surprises me. I can only say, get one of these and throw all your code readers and diagnostic cables away or sell them because they are kid's stuff compared with this tool.

  • *****Customer Service is Key

    By Muhamed Ahmed

    You may find a better price elsewhere, from China, USA etc. But when something goes wrong no one will be there to help you. I have had a series of problems with my Diaguns, not to go into the details but lighting does strike twice. However, if it wasn't for the user friendly and excellent customer services that was provided by Peter I would have purchased a different product. You don't find many Peter's about so he is invaluable to the company. I applaud you for coming to my house when it all goes wrong. I thank you personally. Regards Muhamed

  • *****Brilliant Diagnostic Tool

    By J&A Motors

    These Diagun tools are seriously impressive and when you work out how to use them you will get the real benefit of the tool.The machine is quite small and compact but don't be put off by it's size because the colour screen is still easy to read. The many special software functions for coding, programming, auto transmission diag & DPF and those sort of things do require a bit of know how but the main thing is all the important functions seem to be there in the tool. Got to be the best diag machine in the market for the price so one more very happy customer here

  • *****Best Buy & Best After Sales

    By David Evans

    Nobody has left less than 5 stars for these and I know why it's got top reviews because I bought one myself from Diagnostics4u for my work earlier this year and believe me they are the best. I am leaving a review mainly for the company who have quickly resolved 3 different problems for me this year within 48hrs when I was desperate.

    I nearly bought a Diagun cheaper from China but I'm so glad I didn't because these people have given me a new bluetooth twice this year without any arguments when I had problems and that meant I didn't lose my customers jobs and I didn't lose any money which I thought was definitely going to happen at the time. Those 2 bluetooths they exchanged would have cost me at least 500 to buy if it wasn't for the warranty which I probably would not have got from China. Thankyou D4U and keep up the good work

  • *****The Best

    By Premier Cars

    Cant do without this now. Saved us loads and making us loads. Used every day and hasn't let us down. We have other diagnostic equip but, this is the best one and we get the updates

  • *****Make Sure You Get Warranty & Updates

    By Michael Ellis

    You can get these a bit cheaper from China where they are made. Getting the software updates and warranty repairs is a gamble though and definitely depends on who you deal with.

    Someone I know bought his Diagun from China 2 months ago and so far he has had no problem but other people I have spoken to swear they would never buy from someone in China again because they got no help with anything after they paid their money and they had to pay more money to get software updates they should have got free

    Wherever you buy your Diagun you will find these are excellent profesional compact machines which do a lot and you can't get much better, even if you spend a lot more money, but you will definitely need the software updates as they come out if you want to cover as many different car systems and models as possible. And, make sure you get a repair warranty because these are small computers and like anything else they can break down

  • *****Launch Diagun X431

    By Mark Rayner

    Well I did buy a Diagun from China and it only worked for two weeks. I was asked to return it at my own expense, (146.00). That was four months ago!

    I didn't know chinese customs charge import tax on products even if they are returned for repair. I even wrote "faulty product returned for repair" on the shipping label but they have ignored that.

    Customs are demanding 340usd, the seller won't pay the tax and I don't see why I should pay it so I bought another Diagun here until it's sorted out because I can't keep borrowing other peoples diagnostic tools and I was losing business
    When or if I ever get my first one back I will probably still keep it as a spare but what a mightmare, never again. I wish I had found your website before. Very grateful for all your advice, quick delivery and the update. The machine is working perfectly and I will buy other products here again

  • *****Diagun is Best Value

    By Diesel

    The Diagun is the best value tool you can buy in terms of the wide vehicle coverage, the system coverage and above all, the very low price for a genuinely professional tool. However, it is not as simple to use as some people say because even though the menu is simple to use you will find knowledge and practise is required to get the most out of all the functions available in the Diagun.

    A couple of things to keep in mind. The Bluetooth circuit boards are prone to damage if connected or removed whilst the engine in the car is running or through jump starting a vehicle whilst connected. And the on/off power button micro switches on the Diaguns are fragile and very easilly broken if they are pressed too hard and then the tool won't work. Apart from those things, they are exceptionally good

    I have a Diagun and a Autel Maxidas DS708 and between them I can do almost all the diagnostics I need. Just 1 diagnostic machine on it's own will not provide you with total vehicle system coverage.
    If nothing else, the Diagun deserves full marks just for it's low price

  • *****Awesome

    By Dr. Paul Dembo

    This product and customer service is worth more than 5 STARS

  • *****Diagun x431

    By Craig

    Absolutely brilliant piece of diagnostic equipment covers exactly what you meet day to day in a busy workshop. Additionally the service from the people who run Diagnostics4u are as good or even better than the machine. They know about what they sell and are more interested in what you need rather than what they can sell you, even if its cheaper. Rare to find a company like that!!!! im glad i found them.... Thanks again team you deserve this review, cheers, CW

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