803 Terminator Mercedes-Benz FBS4 New Generation Keyless-Go Solution 2019+ A-Class, B-Class, GLA, GLB, GLE & GLS
Designed for 2019+ Mercedes-Benz MBUX models including A-Class, B-Class, GLA, GLB, GLE, and GLS.Supports original key retention and emergency start. Customers can choose their preferred key style by picture number and add up to 3 smart keys.Note: Door handle sensing is not supported. Key addition only. All keys lost situations are not supported.Mercedes-Benz FBS4 New Generation Keyless-Go Solution(FBS4 803) IntroductionThis solution is designed for Mercedes-Benz vehicles equipped with the new generation FBS4 (4th Generation Immobilizer) system.It is specially developed for Mercedes-Benz models from 2019 onwards.Suitable for vehicles equipped with: #New MBUX large dual-screen system #Flat-style Smart Key (new generation key)#Push Start functionVehicle RequirementsThe vehicle must have: Mercedes-Benz new generation FBS4 system Original flat-style Smart Key Original key with 3 screws inside the rear cover Push Start buttonNote: Does NOT support original door handle touch sensor function NOT suitable for vehicles with Keyless-Go touch entry door handlesFeatures1, Keep Original Key Without DisassemblyDuring installation:No need to open the original keyNo need to modify the internal key circuitKeep the original key fully functional2, Emergency Start FunctionThe original vehicle key can be stored inside the main unit.If emergency starting is required:Open the main unit and remove the original key.The vehicle can then be started using the original key operation.3, Professional Installation SolutionDeveloped specifically for the new generation Mercedes-Benz FBS4 system.Advantages:Simple installationReduced disassembly stepsNo vehicle wiring modification requiredDesigned for professional locksmiths
Compatible Mercedes-Benz ModelsSuitable for approximately 2019+ Mercedes-Benz FBS4 vehicles, including:Passenger CarsA-ClassB-ClassC-Class (Selected models)E-Class (Selected models)S-Class (Selected models)SUV ModelsGLAGLBGLC (Selected models)GLEGLSFinal compatibility depends on vehicle year, VIN, and vehicle configuration.Difference Between FBS4 SolutionsFBS4 802✅ Flat-style Smart Key✅ Push Start function❌ Previous generation FBS4 system❌ No door handle touch sensorFBS4 803✅ 2019+ New Generation FBS4 system✅ MBUX large screen models✅ New 3-screw flat-style Smart Key❌ No door handle touch sensorFBS4 902✅ Flat-style Smart Key✅ Push Start function✅ Door handle touch sensor / Keyless-Go entryBefore PurchaseTo avoid ordering the wrong solution, please provide:Mercedes-Benz modelProduction yearVIN / chassis numberFront and back photos of the original keyWhether the door handle supports touch unlockingOur technical team will confirm the correct solution before purchase.Designed For Professional UsersSuitable for:✅ Automotive Locksmiths✅ Mercedes-Benz Specialists✅ Automotive Electronics Technicians
