How to Choose the Correct Mercedes-benz FBS4 Key Solution? Mercedes-Benz FBS4 key solutions are divided according to:
✅ Original key type ✅ Vehicle production year ✅ Push Start function ✅ Keyless-Go door handle function
Before ordering, please check your original key and vehicle configuration carefully.
Type 1: Old-Style Smart Key (2012-2018) Key Identification Suitable for older generation Mercedes-Benz FBS4 systems.
Main features:
Old-style Mercedes Smart Key Commonly used on 2012-2018 models
FBS4 801 Mercedes-Benz FBS4 Keyless-Go Start Solution Vehicle Requirements: ✅ Old-style Smart Key ✅ Original Push Start function ❌ No Keyless-Go door handle touch function
Product Features: Supports original key without disassembly Supports emergency start function Simple installation Designed for professional automotive locksmiths
FBS4 901 Mercedes-Benz FBS4 Keyless-Go Touch Handle Solution Vehicle Requirements: ✅ Old-style Smart Key ✅ Original Push Start function ✅ Keyless-Go door handle touch function
Product Features: Supports original Keyless-Go door handle function Supports original key without disassembly Supports emergency start function
Type 2: Flat Smart Key (1 Screw) Key Identification Suitable for mid-generation Mercedes-Benz FBS4 systems.
How to identify:
Open the rear cover of the key:
✅ 1 screw inside the key cover
Common vehicle range:
2015-2023 Mercedes-Benz FBS4 models
FBS4 802 Mercedes-Benz FBS4 Flat Smart Key Start Solution Vehicle Requirements: ✅ Flat Smart Key ✅ Original Push Start function ❌ No Keyless-Go door handle touch function
Product Features: Supports original key without disassembly Supports emergency start function Keeps original vehicle functions
FBS4 902 Mercedes-Benz FBS4 Flat Smart Key Keyless-Go Touch Handle Solution Vehicle Requirements: ✅ Flat Smart Key ✅ Original Push Start function ✅ Keyless-Go door handle touch function
Product Features: Supports original Keyless-Go door handle function Supports original key without disassembly Supports emergency start function
Type 3: New Generation Flat Smart Key (3 Screws) Key Identification Suitable for new generation Mercedes-Benz FBS4 systems.
How to identify:
Open the rear cover of the key:
✅ 3 screws inside the key cover
Common vehicle range:
2019+ Mercedes-Benz models
Including:
A-Class B-Class GLA GLB GLE GLS MBUX large screen models
FBS4 803 Mercedes-Benz FBS4 New Generation Keyless-Go Start Solution Vehicle Requirements: ✅ 3-screw Flat Smart Key ✅ Original Push Start function ❌ No Keyless-Go door handle touch function
Product Features: Supports new generation FBS4 system Supports original key without disassembly Supports emergency start function
FBS4 903 Mercedes-Benz FBS4 New Generation Keyless-Go Touch Handle Solution Vehicle Requirements: ✅ 3-screw Flat Smart Key ✅ Original Push Start function ✅ Keyless-Go door handle touch function
Product Features: Supports new generation FBS4 system Supports original Keyless-Go door handle function Supports original key without disassembly Supports emergency start function
Mercedes-Benz FBS4 Quick Comparison Not Sure Which Solution You Need? Please send us:
Mercedes-Benz model Vehicle year VIN / chassis number Original key front and back photos Door handle touch function information Our technical team will confirm the correct FBS4 solution for your vehicle.
