{"id":997759,"date":"2026-05-19T11:45:36","date_gmt":"2026-05-19T11:45:36","guid":{"rendered":"https:\/\/revonik.de\/produkt\/mercedes-w447-ezs-2"},"modified":"2026-06-02T13:20:46","modified_gmt":"2026-06-02T13:20:46","slug":"mercedes-w447-ezs-2","status":"publish","type":"repair","link":"https:\/\/revonik.de\/en\/produkt\/mercedes-w447-ezs\/mercedes\/vito-w447\/2014-","title":{"rendered":"EZS Electronic Ignition Lock FBS4 Mercedes Vito W447"},"content":{"rendered":"
\n

A faulty control unit can bring entire vehicle systems to a standstill \u2013 often without warning. Revonik will repair your EZS Electronic Ignition Lock FBS4<\/strong> Professional service, delivered in 2\u20134 working days, and up to 70% cheaper than buying new.<\/p>\n

Common fault patterns<\/h2>\n
    \n
  • No communication with the control unit possible<\/li>\n
  • Various CAN bus faults, either intermittent or persistent<\/li>\n
  • System failure or warning light remains on<\/li>\n
  • The vehicle won't start or cuts out whilst driving<\/li>\n
  • Further errors available on request<\/li>\n<\/ul>\n

    Why Revonik?<\/h2>\n

    Our technicians have been repairing control units for over 12 years \u2013 at circuit board level, not simply by replacing them. Your original unit is retained, the vehicle-specific coding is saved, and there is no need to have it reprogrammed at the dealership.<\/p>\n

      \n
    • Up to 70 % cheaper than buying new from the manufacturer<\/li>\n
    • Plug & Play \u2013 fit it straight away, drive straight away<\/li>\n
    • Repair within 2\u20134 working days of receipt of the device<\/li>\n
    • 24-month warranty on the repair work<\/li>\n<\/ul>\n

      Frequently Asked Questions<\/h2>\n

      Does the device need to be reprogrammed after repair?<\/strong>
      \nIn most cases, no. The vehicle-specific coding remains fully intact following our repair. Should recoding be necessary in any individual case, we will inform you in advance.<\/p>\n

      What happens if the device cannot be repaired?<\/strong>
      \nWe will inform you of the diagnosis and, in this case, will only charge the standard diagnostic fee of \u20ac69.00 (including VAT). The device will be returned to you on request.<\/p>\n

      How long will the repair take?<\/strong>
      \nStandard repairs take 2\u20134 working days from receipt of the device. An express service is available on request.<\/p>\n<\/div>\n

      <\/p>","protected":false},"excerpt":{"rendered":"

      Ein defektes Steuerger\u00e4t legt ganze Fahrzeugsysteme lahm \u2013 oft ohne Vorwarnung. Revonik repariert Ihr EZS Elektronisches Z\u00fcndschloss FBS4 professionell, in 2\u20134 Werktagen und bis zu 70 % g\u00fcnstiger als ein Neukauf. Typische Fehlerbilder Keine Kommunikation mit dem Steuerger\u00e4t m\u00f6glich Diverse CAN-Bus-Fehler, sporadisch oder permanent Systemausfall oder Warnleuchte dauerhaft aktiv Fahrzeug startet nicht oder geht w\u00e4hrend…<\/p>","protected":false},"featured_media":998262,"template":"","vehicle_make":[5306],"vehicle_model":[6560],"vehicle_part":[16357,1568],"vag_part_number":[16359,16360,16361,16362,16358],"fault_code":[],"fault_manufacturer":[5308],"class_list":["post-997759","repair","type-repair","status-publish","has-post-thumbnail","hentry","vehicle_make-mercedes","vehicle_model-vito-w447","vehicle_part-ezs-elektronisches-zuendschloss-fbs4","vehicle_part-sonstige","vag_part_number-a4479000811","vag_part_number-a4479000911","vag_part_number-a4479003519","vag_part_number-a4479003819","vag_part_number-a4479007306","fault_manufacturer-mercedes"],"acf":[],"yoast_head":"\nEZS Elektronisches Z\u00fcndschloss FBS4 Reparatur | Revonik<\/title>\n<meta name=\"description\" content=\"EZS Elektronisches Z\u00fcndschloss FBS4 defekt? Revonik repariert in 2\u20134 Werktagen. Bis zu 70 % g\u00fcnstiger, Plug & Play, 24 Monate Gew\u00e4hrleistung. Jetzt anfrage\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/revonik.de\/en\/produkt\/mercedes-w447-ezs\/Mercedes\/Vito-W447\/2014-\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"EZS Elektronisches Z\u00fcndschloss FBS4 Mercedes Vito-W447\" \/>\n<meta property=\"og:description\" content=\"EZS Elektronisches Z\u00fcndschloss FBS4 defekt? Revonik repariert in 2\u20134 Werktagen. Bis zu 70 % g\u00fcnstiger, Plug & Play, 24 Monate Gew\u00e4hrleistung. Jetzt anfrage\" \/>\n<meta property=\"og:url\" content=\"https:\/\/revonik.de\/en\/produkt\/mercedes-w447-ezs\/Mercedes\/Vito-W447\/2014-\/\" \/>\n<meta property=\"og:site_name\" content=\"Revonik\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-02T13:20:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/revonik.de\/wp-content\/uploads\/2026\/08\/revonik-og-1200x630.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/revonik.de\/wp-content\/uploads\/2026\/08\/revonik-og-1200x630.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/revonik.de\\\/produkt\\\/mercedes-w447-ezs\\\/Mercedes\\\/Vito-W447\\\/2014-\",\"url\":\"https:\\\/\\\/revonik.de\\\/produkt\\\/mercedes-w447-ezs\\\/Mercedes\\\/Vito-W447\\\/2014-\",\"name\":\"EZS Elektronisches Z\u00fcndschloss FBS4 Reparatur | Revonik\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/revonik.de\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/revonik.de\\\/produkt\\\/mercedes-w447-ezs\\\/Mercedes\\\/Vito-W447\\\/2014-#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/revonik.de\\\/produkt\\\/mercedes-w447-ezs\\\/Mercedes\\\/Vito-W447\\\/2014-#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/revonik.de\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/Mercedes_Vito_W447_Zuendschloss_Reparatur-scaled.png\",\"datePublished\":\"2026-05-19T11:45:36+00:00\",\"dateModified\":\"2026-06-02T13:20:46+00:00\",\"description\":\"EZS Elektronisches Z\u00fcndschloss FBS4 defekt? 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