M177 TCU Tune
The factory transmission calibration on M177-equipped AMGs is designed primarily for comfort, emissions compliance, and drivetrain longevity. While smooth, it significantly limits shift speed, torque delivery, and overall responsiveness — especially on tuned vehicles.
The DTK M177 TCU Tune completely transforms the way the car drives, allowing the transmission to fully support increased engine output while delivering faster, firmer, and more consistent shifts in every driving mode.
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What the TCU Tune Does
Our transmission calibration reworks the internal logic of the AMG SPEEDSHIFT gearbox to unlock its true performance potential:
•Faster and more decisive gear changes
•Increased clutch pressure to prevent slip at higher torque levels
•Recalibrated torque limiters to match ECU output
•Optimized shift logic in Comfort, Sport, Sport+, and Manual modes
•Improved throttle-to-gear response
•More consistent power delivery under load
The result is a transmission that feels sharper, more connected, and fully in control — whether cruising or driving at the limit.
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Performance Benefits
•Significantly reduced shift times
•Eliminated soft or delayed upshifts
•Improved acceleration and roll-race consistency
•Better traction and control during aggressive driving
•Designed to safely handle increased power and torque
On higher-power setups, the TCU tune is essential to prevent clutch slip and protect the transmission.
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Driving Experience
The TCU tune enhances performance without compromising daily usability:
•Smooth operation during normal driving
•Predictable behavior in traffic and low-speed conditions
•Manual mode that responds instantly to driver input
•Gear holding and downshifting logic optimized for spirited driving
The car behaves exactly as it should have from the factory — just without the restrictions.
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Compatibility & Integration
The DTK TCU tune is designed to work seamlessly with:
•Stock ECU calibration
•DTK M177 ECU tune
•DTK CPC tune
For best results and full torque delivery, ECU + TCU + CPC tuning is strongly recommended.
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Tuning Method
We offer worldwide remote TCU tuning, depending on model year and transmission variant.
Included:
•Custom TCU calibration
•Data logging and refinement process
•Free lifetime retunes for future ECU upgrades
In some cases, bench or on-site flashing may be required.
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Supported M177 Vehicles
•W205 C63 / C63 S
•W213 E63 / E63 S
•W222 S63
•Other M177-equipped AMG models