Mercedes FBS4 Immobiliser Bypass

Mercedes FBS4 Immobiliser Bypass (Bosch MEDC17 ECUs)Mercedes FBS4 Immobiliser Removal service for cars with Bosch ECUs.Do you need to replace the faulty ECU in your FBS4 Mercedes-Benz and the original ECU is missing or damaged?We can help by bypassing the start authorisation in your replacement ECU. This allows you to fit the replacement ECU and start your vehicle without dealer programming.All Bosch MEDC17 ECUs supported.If you’re unsure which ECU you have, please send us your ECU details and we’ll confirm compatibility.We also repair Mercedes FBS4 Ignition Switch & DSM — please check our Mercedes section for more information.Ready to order?Please fill the form below to send us the details of your ECU or vehiclePay for the service Package and post/arrange collection of your Battery to:Pelican DiagnosticsPadley FarmDrove LaneSleafordNG34 8JQ Please include your order number and name in the parcel.Once received, required service will be done within 24hrs and posted back on a next day service.← BackThank you for your response. ✨ Name(required) Email(required) Mobile(required) Vehicle Reg / Vin / ECU Part Number(required) Message Submit ΔWhy choose Pelican Diagnostics for Mercedes FBS4 immobiliser removal?Supports all Bosch MEDC17 ECUs used in FBS4 Mercedes systemsFast turnaround — service completed within 24hrs and returned next dayExperienced technicians — safe, bench-tested procedures preserving ECU functionSecure & documented — test logs and service notes included with returned ECULocal & postal service — bring it in or post to our Sleaford workshopImportant legal & safety notesYou must own the vehicle or have written owner permission to request immobiliser bypass.We do not assist in theft, illegal activity, or actions that would evade law enforcement. We reserve the right to refuse service if legitimacy cannot be verified.International customers: check courier & customs rules for shipping vehicle electronics before posting.Frequently Asked QuestionsWhat is an FBS4 immobiliser bypass for Mercedes?An FBS4 immobiliser bypass disables the start-authorisation check inside a replacement ECU so the vehicle will start without the original immobiliser data. This is used when the original ECU is missing, damaged, or cannot be cloned.Which ECUs do you support for Mercedes Immobiliser Bypass?We support Bosch MEDC17 ECUs used in FBS4 Mercedes systems. If you’re unsure of your ECU type, send us the ECU details and we’ll confirm.Will the car need programming after the bypass?In most cases, no additional dealer programming is required — the ECU is modified so the vehicle will start. If any vehicle-level coding is needed, we’ll notify you before returning the unit.How long does the FBS4 immobiliser bypass take?We complete the service within 24 hours of receiving the ECU and post it back on the next working day. Walk-in customers can often have the service done while they wait.Is the bypass reversible?Reversibility depends on ECU type and the method used. We’ll explain whether the change is reversible for your specific ECU before we proceed.My ECU is damaged — can you still help?We bench-test every ECU on arrival. If a unit is unreadable or irreparable, we’ll contact you with options (repair, refurbished ECU, or return).Do you provide warranty or testing notes?Yes — every unit is bench-tested after the bypass and returned with test logs. Warranty details are provided at point of sale.Mercedes Immobiliser Delete | Mercedes FBS4 Immo Off SKU: 16590071214 Categories: Immobiliser Removal, All, Mercedes Benz Tags: Bosch MEDC17 ECU service, FBS4 ECU bypass Sleaford, FBS4 ignition switch repair, Mercedes ECU immobiliser delete, Mercedes ECU repair Pelican Diagnostics, Mercedes FBS4 immobiliser bypass, Mercedes start authorisation bypass