Keyless Repeater With FBS4
Keyless Repeater With FBS4 – Advanced Long-Range Keyless Entry Signal Amplifier
The Keyless Repeater With FBS4 is a next-generation long-range keyless entry signal amplifier engineered for modern vehicles equipped with Keyless Go / Keyless Entry systems. Building upon the powerful capabilities of the Dexp Multibrand Repeater, this upgraded version adds full FBS3 and FBS4 support—making it one of the only repeaters capable of interacting seamlessly with Mercedes-Benz and Audi vehicles older than 2013, as well as hundreds of additional models from major global brands.
Designed for automotive professionals, security testers, fleet managers, and engineers working with wireless access technologies, this repeater provides exceptional range, outstanding stability, and unmatched multi-brand compatibility.
Tested on 500+ vehicle models, it delivers reliable long-distance smart key amplification up to 400 meters (1312 ft), enabling full remote lock/unlock functionality and engine start—even when the native smart key is far beyond normal communication range.
What the Keyless Repeater With FBS4 Does
The repeater creates a secure extended communication link between the vehicle and its genuine smart key. By amplifying and relaying the encrypted RF signal, the device allows:
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Remote locking/unlocking
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Smart key detection at extreme distances
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Full engine start while the key remains far away
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Extended communication for troubleshooting or diagnostic needs
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Operation of keyless entry systems on vehicles, motorcycles, boats, trucks, machinery, and more
All actions are performed using the vehicle’s own native encrypted signal—the repeater does not decrypt, copy, store, or modify any data. It simply strengthens the existing communication, making the device legal for authorized use.
FBS4 Support—Huge Compatibility Boost
The addition of FBS4 functionality significantly expands the repeater’s compatibility. It is now capable of communicating with:
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Mercedes-Benz (FBS3 + FBS4 systems)
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Audi models prior to 2013
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Many newer keyless platforms from Toyota, Lexus, BMW, VW Group, Land Rover, Porsche, and more
Vehicles using UWB (Ultra-Wideband) smart keys are not supported.
Performance & Operating Range
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Signal extension: up to 400 meters
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Two-way encrypted communication maintained
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Fast response and accurate signal reproduction
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Allows opening doors, unlocking trunk, and starting engines—even on 2019–2021 models (non-UWB)
The device replicates all smart-key communication steps, making the vehicle behave exactly as if the key is right beside it.
Device Features
Three Operating Modes
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Multibrand Mode – works with 90% of global manufacturers
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Toyota/Lexus Mode – optimized for 2021 and earlier models
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FBS4 Mode – Mercedes-Benz & Audi extended compatibility
Key Advantages
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Extremely long communication distance
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Stable, interference-resistant RF performance
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Fully legal operation (no decoding or code interception)
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Compatible with vehicles, motorcycles, boats, jet skis, scooters, agricultural equipment & more
Supported Manufacturers (Partial List)
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Audi, Mercedes-Benz (FBS3/FBS4)
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Toyota, Lexus
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BMW (E/F/G series)
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Volkswagen, Porsche, Skoda, Seat
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Land Rover, Range Rover, Jaguar
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Tesla (pre-keycard)
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Ford, Chevrolet, Cadillac, Jeep
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Nissan, Infiniti, Mazda, Hyundai, Kia
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Peugeot, Renault, Citroen, Opel
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Suzuki, Subaru, Mitsubishi, Alfa Romeo
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Plus many others: Lamborghini, Rolls-Royce, Yamaha, KTM, Polaris, BYD, and more.
