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Unitronic is pleased to announce the release of its new TCU Unlock and TCU Unlock Tools for DQ381.2 and ALx52 TCUs* with the (previously locked) "BL401" bootloader, found in the 2022+ MK8 GTI, Golf R, and Audi 8Y S3 in addition to several 2023+ Audi S4 / S5 / RS5 / RS6 / RS7 / SQ7 / SQ8 / RSQ8 applications.
Integrated TCU Unlock Solution via UniCONNECT+ / UniPRO+
Unitronic’s TCU Unlock solution is seamlessly incorporated into its flashing applications, UniCONNECT+ for end-users and UniPRO+ for Authorized Dealers. TCU unlocks are totally free of charge from Unitronic, provided you’ve purchased Unitronic TCU Performance Software and required Unlock Tools.
Unitronic DSG Bench Harness for DQ381.2
Unitronic DSG Bench Harness for AL552 / AL952
Unlock Your TCU From Home in Minutes
TCU Unlocking is performed directly through the TCU Diagnostic Port and can be done in a matter of minutes with Unitronic’s DSG Bench Harness Tool for DQ381 or AL552 / AL952 transmissions. Once unlocked, Unitronic TCU Performance Software can be flashed directly through the vehicle’s OBD2 port.
Experience the Full Unitronic ECU + TCU Difference
Whether you're looking to improve shift strategy, optimize drivability, increase clutch clamping pressure, or fully complement your Unitronic ECU Performance Software, these new TCU unlock solutions make it easier and more affordable than ever to experience the complete performance package which offers significant improvements for both daily drivers and performance enthusiasts alike. Looking to know which TCU tune is best for you? Click here to learn more.
Redefined Shift Points
Available with Unitronic Stage 2 and Stage 3 TCU Software, redefined shift points allow for improved drivability and performance in conjunction with Unitronic ECU Performance Software.
Increased Clutch Pressure
Clutch clamping pressure increased up to 600NM for the MK8 GTI and up to 700NM for the MK8 Golf R and 8Y S3 in order to meet the power demands of Unitronic ECU Performance Software.
Advanced Torque Management
Unitronic has calibrations available for limited torque and full torque levels when Launch Control (AMAX) is engaged. Limited (low) torque calibrations will limit torque in 1st gear, which is ideal and optimized for use on true street prepped car launching on an unprepped street-like surface with street tires with little to no drivetrain upgrades. Full torque calibrations will provide maximum torque for launching in ideal conditions like on a prepped/glued race track surface with drag radials or slicks and using drivetrain upgrades like a Dogbone Mount.
Gearbox Oil Pressure Raised
Increasing the oil pressure in the gearbox improves the overall gearbox functions, results in quicker reactions for clutch and gear change functions, reduces gearbox chatter when driving on rough road surfaces, and helps to ensure more stable clutch pressure.
Disabled Kickdown in Manual Mode
Disabling the kickdown in Manual mode gives you full control of gear selection without unexpected downshifts when you press the accelerator. This ensures the car holds the gear you choose, providing a more connected and predictable experience during spirited driving or track sessions.
Quicker Gear Shifts
Unitronic's TCU Performance Software calibration enhances the gear shift speeds making them up to 70% quicker.
Gear Display Enabled in D and S Mode
Gear Display is enabled, allowing the driver to see the current gear in both D- and S-mode on the Virtual Cockpit / MFD.(D1, D2, etc. & S1, S2, S3, etc.)
Speed Governor Removed
Vehicle speed limiter within ECU is removed. (Subject to transmission rotational speed limit.)
Dual Setpoint Adjustable Launch Control
Unitronic has adjusted the launch control RPM setpoints to allow for quicker acceleration off the launch control. Dual-stage launch control allows users to choose between two different launch control RPM setpoints based on the current conditions observed. (surface conditions, tires, etc.) Launch Control Setpoint 1 is activated at 100% pedal position, without engaging the kick-down switch. Launch Control Setpoint 2 is activated at "110%" pedal position. (100% pedal position with the kick-down switch engaged) Additional launch control customization is available via Unitronic's FeatureBox and UAF suite.
Increased rev limiter / max upshifts
Meant for larger turbos and higher horsepower setups that make power higher in the rev range, Unitronic Stage 3 TCU Software also raises the maximum engine speed rev limit accordingly. Must be combined with Unitronic Stage 3 ECU tune or other tunes which make the necessary adjustments on the ECU side.
Improved Torque Reduction
Stage 3 TCU Software refines how torque is managed during shifts, reducing torque intervention for faster and smoother high-power gear changes.
Sailing Mode Disabled (EU/RoW only)
Disabling Sailing Mode keeps the drivetrain fully engaged instead of engaging virtual neutral and free-wheeling when coasting in certain drive modes at speeds between 55kph/35mph and 160kph/99mph. This provides the driver with a more engaged performance orientated feeling and driving experience. Sailing mode is inactive on most North American vehicles from the manufacturer.
TCU Tuning Without Barriers
Unitronic continues its mission of removing tuning barriers and making high-performance software upgrades more accessible than ever. With a straightforward unlock process, seamless integration within UniCONNECT+ and UniPRO+ applications, and no-cost TCU Unlocks, enthusiasts can now experience all the potential of their vehicles, without necessary dealer visits or expensive third-party tools or unlocking services. End-users, when equipped with Unitronic’s DSG Bench Harness, can unlock their TCU from the comfort of their own home or garage!
*AL552 / AL952 TCU unlock support via UniCONNECT+ / UniPRO+ coming soon.
*Unitronic is not affiliated with any vehicle manufacturers. All Manufacturer and vehicle names and trademarks are used in this web site are for identification purposes only. All trademarks and trade dress such as Audi ®, Volkswagen ®, VW ®, Seat ®, Skoda ®, Porsche ®, Lamborghini® GTI ®, Golf ®,Golf R ®, Golf City ®, Alltrack ®, SportWagen ®, Cupra ®, Scirocco ®, Jetta ®, GLI ®, R32 ®, Rabbit ®, Passat ®, Passat CC ®, Tiguan ®, Beetle ®, New Beetle ®, EOS ®, Touareg ®, Phaeton ® DSG ®, S Tronic ®, TSI ®, TFSI ®, VR6 ®, A1 ®, A3 ®, S3 ®, RS3 ®, Q3 ® , A4 ®, S4 ®, RS4 ®, A5 ®, S5 ®,RS5 ® Q5 ®, SQ5 ®, A6 ®, S6 ®, RS6 ®, Q7 ®, SQ7 ®, A7 ®, S7 ®,RS7 ® A8 ®, S8 ®, R8 ®, TT ®, TTS ®, TTRS ®, Boxster ®, 911 ®, 996 ®, 997 ®, 991 ®, Panamera ®, Macan ®, 918 Spyder ®, Cayenne ®, Cayman ®, Huracan ®, Huracan Performante ® are registered trademarks of Volkswagen AG, Audi AG, and Porsche AG.
