Performance Calibration: Mercedes Benz GLC 43 AMG (X253)
Engine: M276 3.0L V6 Biturbo | ECU: Bosch MED17.7.3.1 | Years: 2017–2023
The GLC 43 AMG is an incredible platform, but from the factory, its potential is heavily masked by conservative torque limiters and boost targets within the MED17.7.3.1 ECU. Our calibrations specifically target these maps to deliver a transformative increase in throttle response and mid-range acceleration, bridge the gap between the GLC 43 and the V8 models.
🏁 Stock Baseline Reference
The M276 platform saw a power increase during the 2020 facelift. Your starting point depends on your model year:
2017–2019 Models: 362 HP / 384 LB-FT (520 Nm)
2020–2023 Models (Facelift): 385 HP / 384 LB-FT (520 Nm)
🚀 Performance Calibration Options
| Feature | Stage 1 Calibration | Stage 2 Calibration |
| Power Output | 440 HP | 485–500 HP |
| Peak Torque | 480 LB-FT (650 Nm) | 515 LB-FT (700 Nm) |
| Requirements | Stock Hardware | Downpipes & High-Flow Intake |
| Installation | Powergate 4 / OBD | Powergate 4 / OBD |
| V-Max Limiter | Removed | Removed |
| Upgrade Cost | Base Pricing | +$200 |
🛠️ Technical Calibration Details (MED17.7.3.1)
Our software engineers utilize the full potential of the Bosch MED17 management system:
Boost Optimization: We increase the factory 15 psi boost target to a higher efficiency range, providing a massive surge of torque from 2,500 RPM.
Transmission Calibration: Integrated torque-reporting to the 9G-TRONIC transmission ensures the gearbox is aware of the increased output, resulting in crisper, faster shifts.
Thermal Management: All factory fail-safes remain intact. The ECU will automatically adjust timing and boost if it detects high Intake Air Temperatures (IAT) or low-quality fuel.
Fueling & Ignition: Precision mapping for 93 Octane (98 RON) ensures maximum efficiency and reduced turbo lag.
⚡ The CPC Module (2019+ Models)
For 2019 and newer models, Mercedes introduced a CPC (Central Powertrain Controller).
While our ECU tune provides immediate and noticeable gains, the CPC module contains secondary "hidden" torque limiters.
Level 1: Works exceptionally well within factory CPC limits.
Level 2: To access 100% of the 515+ LB-FT of torque in lower gears, a CPC Bypass or Re-calibration is highly recommended.
📱 Powergate 4 Support
The GLC 43 is fully supported by the Powergate 4 handheld device.
Virtual Read: No waiting—the device instantly identifies your ECU ID and downloads the original file from the cloud.
Smartphone Enabled: Use the Powergate App to flash your car via the OBDII port in minutes.
Safety: Store your stock file on the device to revert to factory settings anytime.
🔧 Recommended Maintenance
Spark Plugs: For Stage 2, we recommend upgrading to NGK 97506 (Step 1 Colder) plugs, gapped to 0.022".
Fuel Grade: Strictly 93 Octane (98 RON) is required for advertised gains.
Oil Service: Reduce intervals to every 5,000 miles (MB 229.5 approval).
This Calibration File Fits:
2017–2023 Mercedes-Benz AMG GLC 43 SUV / Coupe (M276 V6 Only)
2017 - 2023 mercedes benz GLC 43 amg M276 Performance Calibration
All Performance Calibration features can be adjusted specifically to your liking and driving style!
- Tailored Performance to Highway, Track, City
- Pops and Bangs
- Fuel Type
- Optimized boost, fuel, spark, timing values
- Top Speed Limiter Removal
- More Responsive Throttle Control
- Better towing performance
- All OBD Monitors Function as Stock
Software installation is included in this purchase.
Performance Calibration your car with ECUPROGRAM is one of the easiest yet most effective mods you can do! All tunes are made in house suited to your needs.
1. After purchase, a team member will contact you to discuss the details of your car, allowing us to code a file tailored to your vehicle.
2. This file can then easily be installed though a purchased or rented ecu flasher. You can do this on your own or call us and we'll help!
Alternatively you can book an appointment or mail in your ECU and we'll do all the install in-house.
