Performance optimization for modern Mercedes control units – we take care of everything for you!
Starting in 2021, Mercedes will use modern, highly protected MD1 and MG1 engine control units in many models. These cannot be directly modified with common tools such as KESS3, Flex, CMD, or Autotuner .
👉 Stefanel Performance offers you the solution:
We completely repair your control unit in-house – including opening, processing, and professional optimization.
🔧 This is how it works:
-
You send us your control unit (MD1 or MG1)
-
We carry out the necessary unlocking internally
-
We install the appropriate, individually tailored software directly on our premises (e.g. Stage 1, Stage 2, VMAX cancellation, etc.).
-
You will receive the fully optimized control unit back – just install it and drive!
‼️ Important:
It is not possible to access the control unit again after our processing, either by yourself or with other tools.
The optimization is carried out exclusively by us – access remains blocked afterward.
✅ Your advantages:
-
Optimization also for models from 2021
-
No effort with tools or software required
-
Individual calibration directly by us
-
No open or manipulable control unit – maximum security
🔍 Typical vehicles with MD1 / MG1 (from 2021):
-
Mercedes C-Class W206
-
Mercedes S-Class W223
-
Mercedes GLE V167
-
Mercedes A-Class W177 Facelift
-
Mercedes G-Class from 2021
-
many other models – have your VIN checked!
⚠️ Note on legality:
The software optimization we offer is not approved for use on public roads and may only be used on test benches, race tracks or private property.
📞 Contact & Inquiry:
📞 Telephone: 📞 +49 (0) 8031 409 2134
💬 WhatsApp: Write now
Hashtags:
#StefanelPerformance #MercedesTuning #MD1Tuning #MG1Tuning #Stage1Mercedes #Chiptuning2021 #ECUTuning #MercedesW206 #MercedesGLE #ECUOptimization #Enginemanagement