{"id":371623,"date":"2026-09-03T10:00:21","date_gmt":"2026-09-03T08:00:21","guid":{"rendered":"https:\/\/www.alientech-tools.com\/?p=371623"},"modified":"2026-09-03T09:37:07","modified_gmt":"2026-09-03T07:37:07","slug":"upgrade-3-50","status":"publish","type":"post","link":"https:\/\/www.alientech-tools.com\/en\/upgrade-3-50\/","title":{"rendered":"KESS3 Unlock Module for Bosch MDG1 ECUs: new protocols and dedicated BOOT \u201cUnlock\u201d accessory."},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"371623\" class=\"elementor elementor-371623 elementor-371612\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-32b31a0 e-grid e-con-boxed e-con e-parent\" data-id=\"32b31a0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b8deb6e elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"b8deb6e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.alientech-tools.com\/en\/news\/\">&lt; Product updates<\/a><\/span>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bbd12fb att-title-line att-title-line--split elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"bbd12fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">KESS3 Protocol Release<\/p>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-617bde4 e-con-full e-flex e-con e-child\" data-id=\"617bde4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2ec0914 elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"2ec0914\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">3 september 2026<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a1e3f18 elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"a1e3f18\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Upgrade 3.50<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-eaa56be e-flex e-con-boxed e-con e-parent\" data-id=\"eaa56be\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-edbfc30 elementor-widget elementor-widget-heading\" data-id=\"edbfc30\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">KESS3 Unlock Module for Bosch MDG1 ECUs: new protocols and dedicated BOOT \u201cUnlock\u201d accessory.<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f9e3a6b elementor-widget elementor-widget-text-editor\" data-id=\"f9e3a6b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-963f8d3 elementor-widget elementor-widget-text-editor animated fadeIn\" data-id=\"963f8d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{\" data-widget_type=\"text-editor.default\"><div class=\"elementor-widget-container\"><div class=\"elementor-element elementor-element-963f8d3 elementor-widget elementor-widget-text-editor animated fadeIn\" data-id=\"963f8d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{\" data-widget_type=\"text-editor.default\"><div class=\"elementor-widget-container\"><div class=\"elementor-element elementor-element-963f8d3 elementor-widget elementor-widget-text-editor animated fadeIn\" data-id=\"963f8d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{\" data-widget_type=\"text-editor.default\"><div class=\"elementor-widget-container\"><p>Unlock protected Bosch MDG1 ECUs independently and reprogram them in BOOT mode with KESS3.<\/p><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7db4e2 elementor-widget elementor-widget-image\" data-id=\"c7db4e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1320\" height=\"876\" src=\"https:\/\/www.alientech-tools.com\/wp-content\/uploads\/2026\/09\/cover-1.jpg\" class=\"attachment-full size-full wp-image-371622\" alt=\"\" srcset=\"https:\/\/www.alientech-tools.com\/wp-content\/uploads\/2026\/09\/cover-1.jpg 1320w, https:\/\/www.alientech-tools.com\/wp-content\/uploads\/2026\/09\/cover-1-300x199.jpg 300w, https:\/\/www.alientech-tools.com\/wp-content\/uploads\/2026\/09\/cover-1-1024x680.jpg 1024w, https:\/\/www.alientech-tools.com\/wp-content\/uploads\/2026\/09\/cover-1-768x510.jpg 768w, https:\/\/www.alientech-tools.com\/wp-content\/uploads\/2026\/09\/cover-1-480x320.jpg 480w\" sizes=\"(max-width: 1320px) 100vw, 1320px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-92fcc53 elementor-widget elementor-widget-text-editor\" data-id=\"92fcc53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3312431 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" data-id=\"3312431\" data-element_type=\"section\" data-e-type=\"section\"><div class=\"elementor-container elementor-column-gap-default\"><div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e1e3a8a\" data-id=\"e1e3a8a\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{\"><div class=\"elementor-widget-wrap elementor-element-populated\"><div class=\"elementor-element elementor-element-3df8b5d elementor-widget elementor-widget-text-editor\" data-id=\"3df8b5d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\"><div class=\"elementor-widget-container\"><p>KESS3 expands the range of operations available on the latest \u201cLocked\u201d Bosch MDG1 ECUs and introduces a new dedicated accessory: the KESS3 Unlock Module.<\/p><p>This new accessory is specifically designed to perform the \u201cUnlock\u201d procedure directly in the workshop on MD1CS003, MD1CS069, MD1CP007, MD1CS012, MG1CS042, MD1CS004 (HW80), MG1CS031, MD1CP006, MD1CS005 and MG1CS002 ECUs. Once the unlock is complete, the ECU can then be programmed in BOOT mode, accessing its memories to perform reading, writing and a complete backup of the contents. <\/p><p>This update expands coverage across a wide range of diesel and petrol applications equipped with protected ECUs, produced from 2021 to the present day: from commercial vehicles to high-performance cars and SUVs.<\/p><p>The benefits for everyday workshop operations:<\/p><ul><li>Unlock protected ECUs directly in the workshop<\/li><li>KESS3 Unlock Module dedicated to managing the BOOT \u201cUnlock\u201d procedure on supported ECUs<\/li><li>Access to ECU memories after the Unlock procedure<\/li><li>Reading and writing in BOOT mode<\/li><li>Complete backup of ECU contents<\/li><li>Greater coverage of multi-brand diesel and petrol applications<\/li><li>New opportunities to work on commercial vehicles, cars and high-performance SUVs<\/li><\/ul><p>With KESS3 Unlock Module and KESS3, you can manage the entire operation directly in the workshop, maintaining control over every stage of the process: from the initial ECU unlock to memory access and subsequent programming in BOOT mode.<\/p><p>The KESS3 Unlock Module is already available in Dashboard, in the section dedicated to <strong><span style=\"text-decoration: underline\"><a href=\"https:\/\/www.alientech-tools.com\/en\/kess3\/accessories\/\">KESS3 accessories<\/a><\/span><\/strong>.<\/p><p>The new protocols are available to KESS3 users with CAR BENCH\/BOOT activation and an active subscription. The KESS3 Unlock Module is required to perform the BOOT \u201cUnlock\u201d procedure. <\/p><\/div><\/div><\/div><\/div><\/div><\/section>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f987a08 elementor-widget elementor-widget-heading\" data-id=\"f987a08\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Technical focus<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0cb1981 elementor-widget elementor-widget-text-editor\" data-id=\"0cb1981\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>Connection: <strong>BOOT<\/strong><\/li><li> ECU:<ul><li><strong>MD1CS003<\/strong><\/li><li><strong>MD1CS069<\/strong><\/li><li><strong>MD1CP007<\/strong><\/li><li><strong>MD1CS012<\/strong><\/li><li><strong>MG1CS042<\/strong><\/li><li><strong>MD1CS004 (HW80)<\/strong><\/li><li><strong>MG1CS031<\/strong><\/li><li><strong>MD1CP006<\/strong><\/li><li><strong>MD1CS005<\/strong><\/li><li><strong>MG1CS002<\/strong><\/li><\/ul><\/li><li>Production years: <strong>dal 2021<\/strong><\/li><li>Brands involved: <strong>Audi, Bentley, Case IH, Citro\u00ebn, Cupra, DS, Fiat, Ford, Genesis, Hyundai, Iveco, John Deere, Kia, Land Rover, Landini Tractors, Massey Ferguson, McCormick, New Holland, Opel, Peugeot, Porsche, Seat, Secma, Skoda, Steyr, Toyota, Vauxhall, Volkswagen<\/strong><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf37f03 elementor-widget elementor-widget-heading\" data-id=\"cf37f03\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Supported vehicles<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-476cfdf elementor-widget elementor-widget-text-editor\" data-id=\"476cfdf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li><strong>Audi: A1, A3, A4, A5, A6, A7, A8, Q2, Q3, Q5, Q7, Q8, RS4, RS5, S4, S5, S6, S7, SQ5, TT<\/strong><\/li><li><strong>Bentley: Bentayga, Flying Spur<\/strong><\/li><li><strong>Case IH: Farmall 90C, Farmall 100C, Farmall 110C, Farmall 120C, Farmall A Series<\/strong><\/li><li><strong>Citro\u00ebn: Berlingo, C3, C3 Aircross, C4, C4 Cactus, C4 Picasso, C4 SpaceTourer, C5 Aircross, Jumpy, SpaceTourer<\/strong><\/li><li><strong>Cupra: Formentor, Leon<\/strong><\/li><li><strong>DS: 3, 7 Crossback, 9<\/strong><\/li><li><strong>FIAT: Ducato, Scudo<\/strong><\/li><li><strong>Ford: Ecosport, F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, F-550 Super Duty, Focus, Kuga, Puma, Tourneo Connect, Transit Connect<\/strong><\/li><li><strong>Ford Trucks: F-650 Super Duty<\/strong><\/li><li><strong>Genesis: G70, G80, GV70, GV80<\/strong><\/li><li><strong>Hyundai: Palisade, Porter, Starex, Staria<\/strong><\/li><li><strong>Iveco: Daily<\/strong><\/li><li><strong>John Deere: 5G Series<\/strong><\/li><li><strong>Kia: New Bongo, Sorento, Stinger, Tasman<\/strong><\/li><li><strong>Land Rover: Defender, Discovery, Range Rover, Range Rover Sport, Range Rover Velar<\/strong><\/li><li><strong>Landini Tractors: 5-Series, 6 Series<\/strong><\/li><li><strong>Massey Ferguson: MF 3xx<\/strong><\/li><li><strong>McCormick: X5.085, X5.100, X5.110, X5.120, X6.125, X6.135<\/strong><\/li><li><strong>New Holland: T4 Powerstar Series, T4 Series, T5 90, T5 100, T5 110, T5 120, T5 Series<\/strong><\/li><li><strong>Opel: Astra, Combo, Corsa, Crossland X, Grandland X, Mokka, Vivaro, Zafira Life<\/strong><\/li><li><strong>Peugeot: 2008, 208, 3008, 308, 5008, 508, Expert, Partner, Rifter<\/strong><\/li><li><strong>Porsche: Cayenne, Cayenne E-Hybrid, Cayenne S, Cayenne S E-Hybrid, Macan, Macan GTS, Macan S, Macan Turbo, Panamera, Panamera 4, Panamera 4 E-Hybrid, Panamera 4S, Panamera 4S E-Hybrid<\/strong><\/li><li><strong>Seat: Ateca, Leon, Tarraco<\/strong><\/li><li><strong>Secma: F16 Turbo<\/strong><\/li><li><strong>Skoda: Karoq, Kodiaq, Octavia, Superb, Yeti<\/strong><\/li><li><strong>Steyr: Kompakt<\/strong><\/li><li><strong>Toyota: Proace City<\/strong><\/li><li><strong>Vauxhall: Astra, Combo, Corsa, Crossland X, Grandland X, Mokka, Vivaro, Zafira Life<\/strong><\/li><li><strong>Volkswagen: Arteon, Caddy, Golf, Passat, Polo, Talagon, Tiguan, Touareg, T-Roc<\/strong><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2fd3439 e-grid e-con-boxed e-con e-parent\" data-id=\"2fd3439\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-90728b2 att-title-line att-title-line--right elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"90728b2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Contact Us<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b4c9910 elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"b4c9910\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Find out more<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b2d48d6 elementor-widget__width-initial elementor-widget-tablet__width-inherit elementor-widget elementor-widget-shortcode\" data-id=\"b2d48d6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><div id=\"revfin-hubspot-form-1\" class=\"revfin-hubspot-form\"><\/div><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>&lt; Product updates KESS3 Protocol Release 3 september 2026 Upgrade 3.50 KESS3 Unlock Module for Bosch MDG1 ECUs: new protocols and dedicated BOOT \u201cUnlock\u201d accessory. Unlock protected Bosch MDG1 ECUs independently and reprogram them in BOOT mode with KESS3. KESS3 expands the range of operations available on the latest \u201cLocked\u201d Bosch MDG1 ECUs and introduces [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":371622,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_att_megamenu_thumbnail_id":371614,"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[897],"tags":[898],"class_list":["post-371623","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-upgrade-2","tag-kess3-2"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>KESS3 Unlock Module for Bosch MDG1 ECUs: new protocols and dedicated BOOT \u201cUnlock\u201d accessory. - Alientech<\/title>\n<meta name=\"description\" content=\"Unlock protected Bosch MDG1 ECUs independently and reprogram them in BOOT mode with KESS3.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alientech-tools.com\/en\/upgrade-3-50\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"KESS3 Unlock Module for Bosch MDG1 ECUs: new protocols and dedicated BOOT \u201cUnlock\u201d accessory. - Alientech\" \/>\n<meta property=\"og:description\" content=\"Unlock protected Bosch MDG1 ECUs independently and reprogram them in BOOT mode with KESS3.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.alientech-tools.com\/en\/upgrade-3-50\/\" \/>\n<meta property=\"og:site_name\" content=\"Alientech\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/AlientechItalia\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-09-03T08:00:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.alientech-tools.com\/wp-content\/uploads\/2026\/09\/cover-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1320\" \/>\n\t<meta property=\"og:image:height\" content=\"876\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Luca Pedali\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Luca Pedali\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.alientech-tools.com\\\/en\\\/upgrade-3-50\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.alientech-tools.com\\\/en\\\/upgrade-3-50\\\/\"},\"author\":{\"name\":\"Luca Pedali\",\"@id\":\"https:\\\/\\\/www.alientech-tools.com\\\/en\\\/#\\\/schema\\\/person\\\/2f46dcae7915e7bf6ca79400f384b108\"},\"headline\":\"KESS3 Unlock Module for Bosch MDG1 ECUs: new protocols and dedicated BOOT \u201cUnlock\u201d accessory.\",\"datePublished\":\"2026-09-03T08:00:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.alientech-tools.com\\\/en\\\/upgrade-3-50\\\/\"},\"wordCount\":629,\"publisher\":{\"@id\":\"https:\\\/\\\/www.alientech-tools.com\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.alientech-tools.com\\\/en\\\/upgrade-3-50\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.alientech-tools.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/cover-1.jpg\",\"keywords\":[\"KESS3\"],\"articleSection\":[\"Upgrade\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.alientech-tools.com\\\/en\\\/upgrade-3-50\\\/\",\"url\":\"https:\\\/\\\/www.alientech-tools.com\\\/en\\\/upgrade-3-50\\\/\",\"name\":\"KESS3 Unlock Module for Bosch MDG1 ECUs: new protocols and dedicated BOOT \u201cUnlock\u201d accessory. - 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