SmartKey Starter® Restores Remote Start Functionality for Mercedes-Benz Models Losing Mbrace Connectivity at End of 2025
Beginning Dec. 31, 2025, Mercedes-Benz will discontinue support for its legacy Mbrace system, resulting in the loss of factory-connected features. Mid City Engineering’s SmartKey Starter® provides a seamless, OEM-integrated way to restore remote start functionality for impacted owners.
Mid City Engineering, a leading provider of innovative accessories for the luxury vehicle market since 2007, announced the release of an aftermarket solution designed for Mercedes-Benz vehicles affected by the upcoming Mbrace® telematics shutdown.
The SmartKey Starter® installs discreetly inside the vehicle using factory-style connectors and preserves all factory safety and security protocols. Ready for plug & play upgrades like the Compustar Drone®, Directed Smart Start®, Compustar extended range remotes, and DAS II security sensor for shock, tilt, glass break and tow sensing integrated into the OEM security.
Frequently Asked Questions
Does your remote start work with the factory key fob right away? Yes. It works with the OEM key fob by pressing the panic button, or by using lock–unlock–lock if no panic button is present.
Can we add phone control? Absolutely. The Compustar Drone or Directed Smart Start® smartphone control modules interface directly with the SmartKey Starter® to provide remote start/stop, lock/unlock, tracking, vehicle status, and alerts.
Is there a subscription? For basic key fob remote start, no subscription is required. For full phone control with Drone, a subscription is required, but fees are much lower than typical OEM plans. Click here for full FAQ on our mbrace shutdown info page.
SmartKey Starter® (MSRP varies by model) – Compatible with popular Mercedes-Benz platforms ffected by the Mbrace shutdown, including:
● 2016 B Class
● 2016-2017 C Class Coupe and Sedan
● 2016 CLA
● 2016 CLS
● 2016 E Class Coupe, Cabriolet, and Sedan
● 2016 G Wagon
● 2016 GL
● 2016 GLC
● 2016 GLE and GLE Coupe
● 2016-17 GLS
● 2016-2017 AMG® GT
● 2016-2017 S Class Cabriolet and Sedan
● 2016 SL
● 2016 SLK/SLC
Click here for full compatibility list.
It is because of our loyal customers that we can continually build groundbreaking interface devices. We want all of our customers to be completely satisfied with our products and services. Your car isn’t finished when it leaves the factory; so make it complete with Mid City Engineering’s innovative technologies.






