Mercedes-Benz Automatic Transmission Tuning: 5G-Tronic, 7G-Tronic, 9G-Tronic
AutoUpgrades provides precision calibration for Mercedes-Benz automatic transmission tuning across the 5G-Tronic, 7G-Tronic, and 9G-Tronic gearbox families. Our transmission tuning is developed using OEM-level calibration methodology, detailed control-logic analysis, and validation across petrol, diesel, and AMG performance platforms.
Mercedes-Benz automatic transmissions are not generic components. Each gearbox is a tightly integrated system that manages torque transfer, shift timing, clutch pressure, thermal protection, and driveline refinement. Effective transmission tuning requires a clear understanding of how these systems interact under load, not just changes to shift speed or firmness.
Our approach focuses on improving shift quality, torque handling, and drivability while preserving the durability, refinement, and protection strategies engineered into each transmission by Mercedes-Benz.
Why Choose AutoUpgrades for Mercedes-Benz Automatic Transmission Tuning
Torque Limit Alignment:
Internal torque thresholds are recalibrated to accurately reflect real engine output while retaining factory protection strategies. This ensures predictable torque transfer without triggering unnecessary intervention or clutch overload.
Refined Shift Behaviour:
Shift scheduling is optimised to improve responsiveness, reduce hesitation, and maintain smooth transitions across normal, sport, and manual driving modes.
Clutch and Pressure Control:
Clutch fill times and pressure ramps are calibrated for consistency under load, reducing slip, heat generation, and long-term wear while preserving refinement.
Sport and Manual Mode Refinement:
Where supported, manual and sport modes are refined for clearer driver intent, more predictable gear selection, and improved response during spirited driving.
Mercedes 5G-Tronic Transmission Tuning (722.6)
The 5G-Tronic (722.6) is a robust five-speed automatic transmission used extensively across older Mercedes-Benz petrol and diesel models. Despite its age, it remains mechanically strong and highly capable when correctly calibrated.
Our Mercedes-Benz automatic transmission tuning for the 5G-Tronic focuses on improving shift response, torque capacity, and drivability while preserving the gearbox’s well-known durability. Calibration changes are made conservatively, respecting the mechanical limits of the transmission while improving real-world behaviour.
When paired with engine tuning, correct torque alignment within the 722.6 is critical to ensure long-term reliability and consistent shift quality.
Mercedes 7G-Tronic Transmission Tuning (722.9)
The 7G-Tronic (722.9) introduced faster shifting, improved efficiency, and broader ratio coverage across a wide range of Mercedes-Benz vehicles, including many AMG models.
Our 7G-Tronic transmission tuning refines shift timing, pressure control, and torque management to deliver cleaner shifts and more consistent behaviour, particularly when combined with engine performance upgrades.
Attention is paid to thermal protection strategies, clutch loading, and shift overlap to ensure the transmission remains stable under repeated high-load conditions.
Mercedes 9G-Tronic Transmission Tuning (725.0)
The 9G-Tronic (725.0) is Mercedes-Benz’s modern nine-speed automatic, designed for efficiency, smoothness, and high torque capability. It is used across newer petrol, diesel, and performance platforms.
Our Mercedes-Benz automatic transmission tuning for the 9G-Tronic improves shift consistency, drivability, and torque handling while maintaining the refinement expected from a modern Mercedes drivetrain.
Calibration changes are validated against vehicle mass, drivetrain configuration, and intended use case to ensure predictable behaviour in both daily driving and higher-load scenarios.
Integrated Calibration and Long-Term Reliability
Each transmission calibration is developed and validated against the complete drivetrain system. Engine output, vehicle mass, cooling capacity, and intended use are all considered during the calibration process.
At AutoUpgrades, Mercedes-Benz transmissions are treated as integrated, precision-engineered systems. Our calibration approach ensures predictable torque transfer, consistent shift behaviour, and long-term reliability.
The result is a transmission that performs exactly as intended, only better aligned with real-world performance demands.