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EU Ship No Tax 2024 Original ALIENTECH KESS V3 Kess3 ECU and TCU Programming Tool Master/Slave via OBD Boot and Bench Replace Kess V2 Ktag with One Year Subscription

Brand: AlienTech Item No. SE178 In Stock. History 17 sold.

Latest price: 810
Buy Now: 779 4% off
4 Kess V3: Hardware Only 2024 Original ALIENTECH KESS V3 Kess3 ECU and TCU Programming Tool Master/Slave via OBD Boot and Bench Replace Kess V2 Ktag with One Year Subscription
Super Remote Diagnosis Function is available on Launch X431 Tools with SmartLink B/C

Launch X431 PAD VII Elite with Xprog 3 €2451
2024 Launch X431 Pro5 with SmartLink C €1199
CGDI K2 Maybe In Stock Around June 10th, pre-order now only €131

Ship from UK
Ship from EU

Whatsapp: 86-15972933706
Free Shipping Express Shipping ServiceEstimated delivery time: 3-5 Days. See details ?
4.5KG     ( 9.92LB )
58cm*44cm*16cm     ( Inch: 22.83*17.32*6.3 )
Return for refund within 7 days,buyer pays return shipping. Read details ?

Product Description

KESS 3 is the all in one ECU tuning tool from Alientech, working via OBD, Bench and Boot mode. KESS V3 is the powerful tool that allows the read and write of the ECU found in Automobile, Motorcycle, Trucks, Agricultural Vehicles as well as Marine applications by simply connecting the supplied interface cable to the diagnostic port of the vehicle.
ALIENTECH KESS V3 ECU and TCU Programmer with One Year Subscription

Thanks to thirty years of experience and nearly three years of development, KESS3 is the most advanced engineering achievement ever conceived in the Chiptuning industry.
Alientech has made a significant breakthrough to create something unique and extraordinary, which has no equal in the market, in terms of functions, convenience, and versatility.
KESS3 has been developed to provide everyone, from the young engine enthusiast to the most specialized mechatronic technicians with a quick and simple interface to any engine control unit and automatic gearbox on the market.
Sensational performance, high operational flexibility and ease of use allow you to interface with engines and gearbox control units with a single tool.
  • OBD Tuning
  • Bench/Boot Tuning
  • Upgradable from Slave to Master
  • Separate Car, Motorcycle, Truck/Tractor, Agricultural and Marine Protocols
  • Works with some existing KESS V2 cables for old models
  • Uses Alientech Suite
  • Upgraded Cable Set
  • Superfast Checksum Calculations
  • 10x Faster Processing
  • Multi-language: English, Italian, French, German, Spanish, Chinese, Polish, Russian, Portuguese
  • One year subscription for freeupon activation

KESS3 Combines 3 Operating Modes

KESS3 is the new Alientech ECU and TCU Programmer via OBD, Bench and Boot Mode all in a single tool.
OBD - With the OBD mode, you can easily access all the ECU data through the diagnostic socket.
BENCH - A simple interface to the connector and you have complete access to the data of your ECU.
BOOT - This mode allows you to access all system data areas. Read, Write and Clone.


Kindly Notice:
1. 100% original Alientech KESS V3
2. This only firmware KESS V3 without software, please buy KESS3 software license from our webiste. (There are 2 versions for software, Master and slave version, customer can choose software version to buy)
3. With one year warranty
4. Kess 3 newest vehicle list
(with continuous updates and new protocols on Alientech)
5. Once the equipment and software are sold, refunds and returns are not accepted
6. If you have any equipment problems, please contact alientech official website technology, they will help you solve the problem
7. If buy the device from us, you can only activate license/sub. from us. You cannot buy license from other distributors. Vise versa.
8. When the subscription expires, your tool still works. But without the latest software updates and online support from Alientech. 
9. How to register, activate, download and install ALIENTECH Kess V3 Software?

VERSIONS: Master or Slave 
Master or Slave? Buy what you need
The Master version can manage the SLAVE version.

The SLAVE version cannot modify files, it can only read and write files. Only the Master version can modify files.

A single flexible device that can be configured as required, when the tool is initialized, you can choose the mode of operation.
MASTER - The configuration that allows you to edit software calibrations in a completely autonomous way. The read files can be interpreted by your choice of remapping software.
SLAVE: If you are not confident yet or sufficiently autonomous in editing software calibrations, thanks to this mode you can work with a network of trainers who will support you file requirements.
DEALER-NETWORK: If you intend to create your own slave network of tuners, you will have a reliable and easy to use tool.

If you buy slave version and want upgrade to Master version, you can just pay for the price difference and get upgraded.

License you can buy: (You need buy any of those license to works together with your KESS V3 hardware. If you need buy more than one license, you can contact our customer service to get discounts)
Hardware SE178 KESS3HW000 KESS3-Tool
Alientech Kess 3 Master Protocol Activations
Master Activation XNR-SS451-MA001 KESS3MA001 KESS3 Master -Car -LCV OBD Frotocols Activation
Master Activation XNR-SS451-MA002 KESS3MA002 KESS3 Master -Bike-ATV &UTV OBD Protocols Activation
Master Activation XNR-SS451-MA003 KESS3MA003 KESS3 Master Agriculture -Truck &Buses OBD Protocol Activation
Master Activation XNR-SS451-MA004 KESS3MA004 KESS3 Master -Marine &PWC OBD Protocols Activation
Master Activation XNR-SS451-MA005 KESS3MA005 KESS3 Master -Car -LCV Bench-Boot Protocols Activation
Master Activation XNR-SS451-MA006 KESS3MA006 KESS3 Master -Bike-ATV &UTV Bench-Boot Protocols Activation
Master Activation XNR-SS451-MA007 KESS3MA007 KESS3 Master-Agriculture-Truck &Buses Bench-Boot Protocols Activation
Master Activation XNR-SS451-MA008 KESS3MA008 KESS3 Master -Marine &PWC Bench-Boot Protocols Activation
Alientech Kess 3 Slave Protocol Activations
Slave Activation XNR-SS451-SA001 KESS3SA001 KESS3 Slave -Car -LCV OBD Protocols Activation
Slave Activation XNR-SS451-SA002 KESS3SA002 KESS3 Slave -Bike -ATV &UTV OBD Protocols Activation
Slave Activation XNR-SS451-SA003 KESS3SA003 KESS3 Slave-Agriculture-Truck &Buses OBD Protocol Activation
Slave Activation XNR-SS451-SA004 KESS3SA004 KES83 Slave -Marine &FWC OBD Protocols Activation
Slave Activation XNR-SS451-SA005 KESS3SA005 KE3S3 Slave -Car-LCv BenchBoot Protocols Activation
Slave Activation XNR-SS451-SA006 KESS3SA006 KESS3 Slave -Bike -ATV &UTV Bench-Boot Protocols Activation
Slave Activation XNR-SS451-SA007 KESS3SA007 KESS3 Slave -Agriculture -Truck &Buses Bench-Boot Protocols Activation
Slave Activation XNR-SS451-SA008 KESS3SA008 KESS3 Slave -Marine &PWC Bench-Boot Protocols Activation
Alientech Kess 3 Subscription
Subscription XNR-SS451-M5001 KESS3M5001 KES33 Master-12 Months Subscription
Subscription XNR-SS451-M5002 KESS3M5002 KESS3 Master -6 Months Subscription
Subscription XNR-SS451-SS00012 KESS3SS0001 KESS3 Slave-12 Months Subscription
Subscription XNR-SS451-SS0006 KESS3SS0001 KESS3 slave -6 Months Subscription

Renewed Architecture
  • 30 years of experience and passion take shape.
  • Since 1991 Alientech has been designing and developing tools for ECU remapping. Driven by the passion for excellence, Alientech has incorporated all their design experience in this new tool.
  • Every aspect of KESS3 is carefully designed to achieve performance, operational flexibility, and ease of use.
  • Its renewed architecture exploits the full potential of each component.
  • New microprocessor, latest generation I/O interfaces, new built-in sensors and high-performance EEPROM and FLASH memories are the main features of KESS3.
KESS3 Features and Advantages:

1. All in one. OBD, Bench and Boot mode.

KESS3 combines 3 operating modes in one tool. OBD, Bench and Boot Mode.

Configure it according to your needs and your work. Whatever your level and experience in remapping, KESS3 gives you the best.​

2. The CPU
The most powerful microprocessor on the market. 7 times more powerful than the previous generation. Pure power that can execute your commands reliably, faster and more efficiently.
3. Lines of Communication
KESS3 automatically and instantly recognizes the right communication line, to work faster, using only an OBD cable. Ethernet, FlexRay, CAN Bus, K-Line, L-line, J1850, J1708.
All the essential lines to start any operation inside the vehicle in total safety.
4. Projected towards the Future.
GPS, Accelerometer, Bluetooth, and Wi-Fi. All embedded in one platform.
The combination of these features and the constant technological developments that distinguish us will allow us to develop many new functions in the future.

5. High Performance

The renewed USB Full speed chip allows an up to 10x increase in the performance of importing and exporting files to and from the KESS3.
But not only that, Alientech added a new web infrastructure to the new KESS3.
The result being, an Alientech cloud with improved speed and performance.

6. Alientech Suite – New Software.

Such an advanced new hardware inspired Alientech to design software that would take full advantage of its potential. A completely redesigned and new operating suite, in design and architecture.

7. New Design

New look, clean design, everything you need at your fingertips. Updated regularly to be functional, usable and easy.


8. User Experience

A completely renewed UX. An intuitive dashboard with improved access to the vehicle list with the ability to create a list of favorite vehicles and a view of the history of vehicles already interfaced.

9. Compatibility List

List of protocols and vehicles updated daily and always available online Technical instruction available in multi-language to support users during the most complex operations.

10. Performance

The new interactive "search" function will allow you to access the vehicle list or search for the microprocessor of your ECU in a few seconds.

Downloading and updating the list are now instant.

11. Support

Direct access to the Alientech help desk and all development news.

Personalize your custom KESS3.

Alientech gives a flexible solution that best suits your business requirements. You can choose the right configuration for you, based on your job today or what you may require tomorrow.


Ktag vs Kess V2 vs Kess V3


KESS3 Update Log:

Adds Bosch MG1UA008, Bosch MD1CS018, Bosch EDC17C69, Bosch MEG17.9.77, Bosch ME17.9.21.1, Bosch MG1US008, Bosch MED17.8.21, and Bosch ME17.9.56 ECUs on bench. 

Reprogram on bench the new  heavy-duty vehicles supported, brandded Doosan, Mahindra, Shacman, Volkswagen and Yutong.

Increase your workshop's earning potential in the heavy-duty vehicle field with a comprehensive cloning service on Bosch DCU15C167 installed on Yutong trucks, as well as Continental SID605 ECUs managing Weichai engines of Doosan and Shacman vehicles. Also, work in 'BENCH mode' on Bosch EDC16C8 ECUs equipped on Volkswagen Trucks, and Bosch MD1CC898 fitted on the latest Mahindra trucks.

Reprogram via OBD on some models within the Suzuki range with the Bosch MED17.9.63 engine control unit.

Work with BENCH and BOOT modes to meet the demands of your customers for compact Bobcat S76 with Bosch EDC17C87 ECU and off-highway JCB Backhoe Loaders with Delphi DCM3.3+ control unit. Repair and optimize the performance of these engines comprehensively, with a focus on fuel consumption reduction. Choose KESS3 with activation for Truck/Tractor BENCH and BOOT protocols and increase your earnings by expanding your business.
Newly supported control units:
Bosch EDC17C87
Delphi DCM3.3+

Technical specification KESS3:

KESS V3 Interface

DB25 connector
Tyco 12 connector
USB 2.0 type B connector

Compatible operating systems

32-bit or 64-bit editions of Windows 11 and Windows 10
RAM: 1 gigabyte (GB) for 32-bit OS or 2 GB for 64-bit OS
Processor: 1 gigahertz (GHz) or faster
Hard disk space: 200 MB
1 USB port
Microsoft® Edge®
Active Internet connection

Optional System Requirements

Bluetooth V4.2 BR/EDR and Bluetooth LE
Wi-Fi 802.11b/g/n
Alientech Srl does not guarantee the correct functioning of the software on operating systems that are not indicated in the table above.

Environmental conditions

Temperature range of us: -10°C/+50°C – 14°F/122°F
Storage temperature rang:  -20°C/+70°C – -4°F/158°F
Maximum usage humidit: 60%
Operating altitude:  max. 5000 m/16400 ft 
Degree of waterproofin: IP X0 

Package List:

USB cable
The new generation OBD cable
1400SWALIM power supply
144300TALI Cable
144300KBNC Cable
144300KTER Pack
144300T104 Rainbow Cable IDC 26-10
144300T105 Rainbow Cable IDC 26-16
144300T106 Rainbow Cable IDC 26-26


Q: What is the difference betwwen Master and Slave?
A: As a Master user, you can read the files in clear. This allows you to operate independently in order to remap and reprogram the ECU with modified files. As a slave user, only your master will be able to decrypt your files. (Recommended choice for taking the first steps in chiptuning, supported by your Master)

Q: Can I update slave version to Master version?
A: Yes, you need pay the price difference to update it.

Q: Can I downgrade master version to salve version?
A: Yes, but for this, will not refund price difference to you

Q: I have kess3 slave, if i buy kess 3 master from you, can you bind my slave one to the master?
A: Yes, we can do this

Q: Can i activate master license and slave license to the same device?
A: No, you cannot.

Q: Can I unbind license if i purchase kess3 from othe dealer, then purchase license from you?
A: No possible to unbind device no matter where you buy the machine. You can only buy license and subscription from your own supplier

Q: Can i use the tool if subscription expires?
A: Yes, afte the subscription runs out, you still can use it and will have access to all the protocols you had until its expiration date,but if you want to use the latest update softwrae, you need pay new subscription. And after subscription expires, the VR files not possible.
Moreover, won't have access to:
- technical assistance
- VR function
- Cloning
- All the online services such as ORI file download.

Q: If my subscription expires on 1 Nov, 23, I don't renew it until 1 May 24, when does the new subscription expire? 
A:  From day it ran out.

Q: If when my master kess3 subscription is due in Oct, 11th, 2023 and l decide not to carry on paying. Can i have all the protocol updates if I pay for the subscription 6 month later?
A: Yes, you will have all protocols from expiry to renewal period.

Q: How to check device serial number?
A: SN is on the back of the kess3 unit, or check in AlienSuite software. 

Q: What types of vehicles are supported?
A Alientech supports hundreds of thousands of vehicles. Not only engine control units, but also transmission control units equipped on cars, motorcycles, tractors, trucks and boats. To know all the vehicles that Alientech supports, you can easily consult our vehicle list. 

ALIENTECH KESS V3 Customer Feedback:

so far tested old edc15p obd
fiat 9gf_t7 bench

edc17c64 boot and bench
insignia edc17c19 bench
old jag delhi mpc555 bdm fail but ktag worked
mazda r2ak under r2ab obd ok
peugeot dmc3.5 obd ok
psa edc17c10 obd , write 30 seconds ish ok
renault edc17c42 obd ok
ford dcm6.1 obd ok

FORD sid209 obd locked ecu, no recovery
(Use TGflash for FORD SID209 (over OBD) with full recovery — Tactrix OpenPort 2 will work fine)
CNH edc16 and EDC7, not wok recovery original and recorded with kess v2 work
VAG med17.5.5 not read boot, ktag work read
BMW Mevd17.1.2 obd not work
marelli 6jf in bench does not work
marelli 6f3 in bench does not work does not connect and in bdm does not calculate the chk
mjd603 works with bdm connected for cloning
crd1.1 on bench but using obd worked
I´ve done many SID 206 Ford all ok with Kess 3
Sid209 ford no read boot mode, read password failed for OBD…With sid 208 ford bench I had no problems but sid 208 PSA I tried endless connections until I was able to write.

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Shipping Method and Delivery Time: 

1. UK & Czech Warehouse Shipping: 3-5 working days. Fast Delivery & VAT/Tax Free.
[Ship from UK] For UK customers only,  2-5 days shipping by Royal Mail or UPS
[Ship from Czech] For European countries, ship by DHL or GLS, 3-5 days delivery. 

2. DHL Shipping: Suitable for customers worldwide. Will take 5-7 working days. 
If your address belongs to remote area, will need to pay remote handling cost. Please remember to leave message if you have any special requirement.
3. Yanwen Express: TAX Free for European Countries. Will take 10-15 working days normally.
4. Order Under 130EUR normally with default shipping standard post, customers can tick for premium delivery to choose ship by DHL.
5. Customers can also choose UPS, TNT FedEx or EMS if you prefer.


ALIENTECH Kess V3 Read and Write VW MED17.5 ECU on Bench

How to Install KESS3 Alientech Suite Software on Windows 10

2024 Original ALIENTECH KESS V3 Introduction and ECU Test

Tech Support

ALIENTECH Kess V3 must work with its unique software Alientech Suite. Follow this post to register an account to download the software and install it easily.

ALIENTECH Kess V3 must work with its unique software Alientech Suite. Follow this post to register an account to download the software and install it easily.

1.How to register ALIENTECH account?


Click “CUSTOMER AREA” at the top-right corner


Click “Register now” to enter the registration page


Input the corresponding personal info incl. user name, e-mail address, password, and language correctly to create ALIENTECH ID

Click “Next”


You will receive an activation email from Alientech company. Click “Activate now” to activate your ALIEN_ID.


2.Where to download Kess V3 Software?

After the registration and activation are completed, login with your email address and password.


Click “Download area” at the left sidebar of the page

Find KESS3 and click AlientechSuite_Setup to download the software


3.How to install ALIENTECH Suite software?

After downloading, launch the installer, and follow the prompt to install easily.

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After the installation is finished, connect Kess V3 ECU programmer and computer via the USB cable, and run Alientech-Suite application on the desktop to use normally.

Computer operating system requirement:

  • 2GB or above RAM
  • 32-bit or 64-bit 1 GHz processor


If there is new vehicle list, follow the prompt to download first, and select the vehicle you need to operate via OBD, Bench or Boot mode.

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Video Guide: