Mercedes-AMG C43 W205 Performance Calibration
M276 DE30 AL 3.0L Twin-Turbo V6 | 2017–2022
 
Unlock stronger acceleration, sharper throttle response, and significantly improved mid-range torque with a professionally developed ECU calibration for the Mercedes-AMG C43 W205.
The C43 W205 is powered by the Mercedes-Benz M276 DE30 AL 3.0L twin-turbocharged V6. Because the pre-facelift and facelift models use different factory calibrations and turbocharger specifications, performance figures are divided into two groups.
 
2017–2018 Mercedes-AMG C43 Pre-Facelift
Factory Output
362 HP / 384 lb-ft
367 PS / 520 Nm
Stage 1 Calibration
Up to 425 HP / 455 lb-ft
 
Estimated gains:
+63 HP / +71 lb-ft
 
Stage 1 is designed for vehicles with stock or lightly modified hardware and high-quality premium fuel.
 
Stage 2 Calibration
Up to approximately 460–480 HP
Recommended supporting modifications:
High-flow downpipes
Performance intake or high-flow air filters
Upgraded exhaust system
Fresh or one-step-colder spark plugs where appropriate
94 AKI premium fuel recommended
 
2019–2022 Mercedes-AMG C43 Facelift
Factory Output
385 HP / 384 lb-ft
390 PS / 520 Nm
 
The facelift model uses an updated version of the M276 DE30 AL engine with revised turbocharger hardware and higher factory output.
 
Stage 1 Calibration
Up to 440–450 HP / approximately 475 lb-ft
 
Estimated gains:
Up to +65 HP / +91 lb-ft
 
Stage 1 is suitable for stock or lightly modified vehicles and delivers a substantial increase in mid-range torque and throttle response.
 
Stage 2 Calibration
Up to approximately 485–500 HP / 515+ lb-ft
 
Recommended supporting modifications:
High-flow downpipes
Performance intake or upgraded air filters
Performance exhaust system
One-step-colder spark plugs where appropriate
94 AKI premium fuel
CPC recalibration or bypass may be required for maximum torque output
 
What the Calibration Improves,
The ECU calibration optimizes:
Turbocharger boost targets
Load and torque-limiter strategies
Fuel delivery
Ignition timing
Throttle response
Mid-range acceleration
Torque reporting to the transmission
Optional top-speed limiter removal
 
Comfort mode remains smooth and refined for everyday driving, while Sport and Sport+ deliver sharper throttle response and more aggressive power delivery.
Applicable factory protection strategies remain active, including knock control, temperature protection, overboost protection, and limp-mode functions.
 
CPC Module Information
Some facelift C43 models are equipped with a Central Powertrain Controller, commonly known as the CPC.
 
The CPC may contain additional torque, speed, and gear-dependent limiters. Stage 1 normally provides a substantial performance improvement without CPC modification. However, CPC recalibration or bypass may be recommended for Stage 2 or higher-output applications to achieve the full requested torque.
CPC service is not included unless specifically selected.
 
Fuel Requirements
Recommended Fuel:  94 AKI premium gasoline
 
The advertised maximum power figures are based on suitable high-octane fuel. Lower-octane calibrations may be available, but output will be reduced accordingly.
For customers outside North America, 94 AKI is approximately equivalent to 98–100 RON, depending on fuel formulation.
 
Recommended Maintenance
Before calibration, the vehicle should be mechanically healthy and free of active faults.
 
Recommended items include:
Fresh OEM-quality spark plugs
Properly functioning ignition coils
No boost or vacuum leaks
Healthy intercooling system
Clean air filters
Correct fuel pressure
No active transmission or engine fault codes
 
For Stage 2, one-step-colder spark plugs may be recommended depending on boost level and operating conditions.
 
Vehicle Compatibility
 
2017–2018 Pre-Facelift
Mercedes-AMG C43 Sedan
Mercedes-AMG C43 Coupe
Mercedes-AMG C43 Cabriolet
 
2019–2023 Facelift
Mercedes-AMG C43 Sedan
Mercedes-AMG C43 Coupe
Mercedes-AMG C43 Cabriolet
 
Compatibility must be confirmed using the VIN, ECU identification, engine software version, and vehicle configuration before calibration.
 
Installation Options
OBD ECU calibration
Powergate 4 remote tuning
Bench service where required
Optional datalogging
Optional calibration revisions
Optional CPC calibration
 
Advertised figures are estimated crank horsepower and torque. Actual output varies based on fuel quality, vehicle condition, installed hardware, elevation, ambient temperature, drivetrain losses, and dyno type.