Home > Key Programming Tools > 801 Mercedes-Benz FBS4 Keyless-Go Start Solution W204 / W205/W212 / W213/W222

801 Terminator Mercedes-Benz FBS4 Keyless-Go Start Solution W204 / W205/W212 / W213/W222

SKU: FHT-801
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$210.00 $0.00

Designed for 2012-2018 Mercedes-Benz FBS4 vehicles with factory Keyless-Go and grenade-style smart keys.

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  • 801 Mercedes-Benz FBS4 Keyless-Go Start Solution W204 / W205/W212 / W213/W222
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  • 801 Mercedes-Benz FBS4 Keyless-Go Start Solution W204 / W205/W212 / W213/W222
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801 Terminator Mercedes-Benz FBS4 Keyless-Go Start Solution W204 / W205/W212 / W213/W222

Designed for 2012-2018 Mercedes-Benz FBS4 vehicles with factory Keyless-Go and grenade-style smart keys.

Simple plug-and-play installation through the original KG module. No wire cutting and no need to disassemble the original key. Supports adding up to 3 smart keys with customizable key styles.

Push-Button Start Only. Key Addition Only. All Keys Lost Situations Are Not Supported.

Mercedes-Benz FBS4 Keyless-Go Start Solution

Product Introduction
This solution is designed for Mercedes-Benz vehicles equipped with the FBS4 (4th Generation Immobilizer) system.

It is specially developed for vehicles that already have:

* Original Smart Key system
*Push Start function

The solution allows professional locksmiths to provide a key solution while keeping the vehicle’s original system and key function.

Vehicle Requirements
The vehicle must have:

* Mercedes-Benz FBS4 immobilizer system
* Original Smart Key
*Factory Push Start button

Suitable for:

Adding an additional key
Professional locksmith services
Mercedes-Benz key programming solutions
Product Features
# Supports Keyless-Go Push Start Function
The vehicle keeps its original starting operation:

Enter the vehicle → Press the brake pedal → Press the start button → Start the engine.

# Keep Original Key Without Disassembly
During installation:

No need to open or modify the original key
No need to change the original key circuit
Keep the original key complete and functional
# Easy Plug & Play Installation
The solution uses a dedicated adapter connection.

Installation location:

KG (Keyless-Go) module in the trunk area

Installation steps:

Locate the vehicle KG module
Connect the dedicated adapter cable
Complete installation
No need for:

❌ Removing multiple control modules
❌ Complex wiring
❌ Modifying vehicle harness

Emergency Start Function
The 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 method.

Compatible Mercedes-Benz Models
Suitable for approximately 2012-2018 Mercedes-Benz FBS4 vehicles, including:

C-Class
W204 / W205 (Selected models)

E-Class
W212 / W213 (Selected models)

S-Class
W222

SUV Models
GLC
GLE
GLS
ML
GL

Other Models
GLA
CLA
CLS
SLC
G-Class
A-Class
B-Class

Final compatibility depends on vehicle year, chassis number, and configuration.
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 + 

Before Purchase
To avoid ordering the wrong solution, please provide:

Mercedes-Benz model
Production year
VIN / chassis number
Original key photo
Whether the vehicle has Push Start function
Our technical team will confirm the correct solution before purchase.

Designed For Professional Users
Suitable for:

* Automotive Locksmiths
* Mercedes-Benz Specialists
*Automotive Electronics Technicians

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