802 Terminator Mercedes-Benz FBS4 Key Adapter Box for 2015–2023 C-Class, GLC, S-Class, CLA, CLS, SLC & G-Class
Features&Functions:1,Designed for 2015-2023 Mercedes-Benz FBS4 vehicles with factory Keyless-Go and flat-style smart keys (one screw version).2,Supports original key retention and emergency start. Customers can choose their preferred key style and add up to 3 smart keys.Note: Not compatible with Comfort Access door handle sensing vehicles. Key addition only. All keys lost situations are not supported.Product DescriptionThe 802 Terminator Series is designed for Mercedes-Benz FBS4 vehicles equipped with factory Keyless-Go push-button start but without door handle sensing (Comfort Access).Compatible with original flat-style smart keys featuring one screw inside the rear key cover. Installation does not require disassembling the original key and supports emergency vehicle start.Please select the correct solution according to your vehicle configuration.
| Solution |
Key Type |
Vehicle Year |
Push Start |
Door Handle Touch |
Application |
| FBS4 801 |
Old-style Smart Key |
2012-2018 |
✅ |
❌ |
Smart Key + Push Start without |
| FBS4 901 |
Old-style Smart Key |
2012-2018 |
✅ |
✅ |
Smart Key + Push Start + Touch |
| FBS4 802 |
Flat Smart Key |
2015-2023 |
✅ |
❌ |
Flat Key + Push Start without Touch |
| FBS4 902 |
Flat Smart Key |
2015-2023 |
✅ |
✅ |
Flat Key + Push Start + Touch Handle |
| FBS4 803 |
3-Screw Flat Smart Key |
2019+ |
✅ |
❌ |
New Generation FBS4 / MBUX |
| FBS4 903 |
3-Screw Flat Smart Key |
2019+ |
✅ |
✅ |
New Generation FBS4 / MBUX + |
Advantages:
#No Need to Disassemble the Original Key#Supports Original Push-Button Start #Supports Emergency Start Function# Non-Destructive Installation#Customizable Key Style Options# Supports Adding Up to 3 Smart Keys# Stable and Reliable OperationSupported ModelsSuitable for 2015-2023 Mercedes-Benz FBS4 vehicles, including:• C-Class• GLC• S-Class• CLA• CLS• SLC• G-ClassFunction DescriptionThis system allows additional smart keys to be added while keeping the original key fully functional.Customers can choose their preferred key style according to the available key options.Up to 3 additional smart keys can be added.After installation, the original push-button start and emergency start functions remain fully operational.Important Notes• Not compatible with vehicles equipped with factory door handle sensing (Comfort Access).• Supports key addition only.• All keys lost situations are NOT supported.• At least one working original key is required before installation.
