Unitronic TCU Unlock Tools For DQ381.2/ALx52 Transmissions

SKU: UH015-TLA

Select Transmission Harness: DQ381.2
Add 12v Power Supply With Accessory Socket?: No Thanks
Add TCU Tuning Software (Includes UniCONNECT Cable)?: No Thanks
Sale price$74.99

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Product Information

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.

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?

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.

Vehicle Compatibility:

  • DQ381.2
    • MK8 GTI
    • MK8 Golf R
    • 8Y S3
  • ALx52
    • C8 RS6
    • 4M RSQ8

What's Included:

  • Unitronic TCU Unlock Tools
  • Unitronic TCU Tuning Software with UniCONNECT+ Cable (OPTIONAL)

NOTE: Product images shown may not be an exact representation of the actual product.

Model   + Drivetrain  
4M RS Q8 4.0T V8 +
4M.5 RS Q8 4.0T V8 +
8Y S3 2.0T I4 [MQB Evo]
8Y.5 S3 2.0T I4 [MQB Evo] +
C8 RS6 4.0T V8
MK8 GTI 2.0T I4 [MQB EVO]
MK8 R 2.0T I4 [MQB EVO]
MK8.5 GTI 2.0T I4 [MQB EVO]
MK8.5 R 2.0T I4 [MQB EVO]

Return and Exchange Policy

The Return & Exchange Policy below outlines our current terms. While we try to adhere strictly to the guidelines detailed below, there are always exceptions to the rules, please speak to a BMP Tuning Customer Support Representative for clarification on anything you might have questions about - contact us.


Order Cancellations

Order Cancellation Hours of Operation

  • All order cancellations are processed during regular business hours only. Any order cancellation requests made outside of normal business hours will be processed during the next business day.

Order Cancellation Fees

  • Any cancelled orders including orders that have not shipped will be subject to a 5% cancellation fee to offset order processing fees that are not refunded to BMP Tuning by financial institutions and fee is waived completely if store credit is requested.
  • Cancellation fee applies to any order regardless of stock status, please contact BMP Tuning if there are any questions regarding stock status before placing an order.
  • If an order has already been processed or shipped and BMP Tuning is unable to cancel the order, the customer will be responsible for returning the item to us once received. Once the return is received it will be processed like any other return and be subject to the "Return and Exchange Policy" listed below.  
  • Certain products sold cannot be cancelled after the order has been placed due to agreements with the manufacturer, or in the case of made to order/custom items. This may be noted in the product description, but feel free to contact us to make sure before ordering.
  • Any order placed via Katapult are non-refundable; refunds, if required, will be issued via store credit only.

Return & Exchange Policy

Domestic Orders

  • BMP Tuning will accept returns for unused products within 1 year/365 Days from the date of purchase.
  • Returned products must be new, unused, and must be in the original packaging, including labeling, manuals, hardware, etc.  Special order items are non-refundable.
  • Returns will NOT be processed for any received products without the proper RMA Form completed and included with the return, customer will also be responsible for return shipping to their original shipping address.
  • Returns beyond 60 days of original purchase once processed can only be refunded as BMP Tuning store credit.
  • In the case of an exchange, BMP Tuning will waive normal restocking fees and only collect for original shipping of the returned product unless otherwise stated by a BMP Tuning Customer Service Representative when requesting your RMA number.
  • Once store credit has been issued for a return, it is final and cannot be reversed or exchanged for a refund to your original payment method at a later time. Please ensure you are comfortable with receiving store credit before completing your return.
  • Contact us within 7 days of delivery if an item has arrived damaged or incorrectly so that we can rectify the situation with the responsible party. Any notifications past 7 days from delivery could cause issues with replacement and BMP Tuning is not liable for any mis-shipments or damaged items if notified past the 7th day.
  • Once delivered to shipping address provided, packages are customer’s responsibility—consider requesting a signature upon delivery or insuring your order with Route.

International Orders

  • New, unopened products can be returned within 60 days of purchase.
  • Opened/used products and Scratch & Dent parts cannot be returned.
  • Contact us within 7 days if your item is damaged upon receipt.
  • Once delivered, packages are customer’s responsibility—signature confirmation is available upon request.
  • Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.

Return Fees & Shipping:

  • Customer is responsible for a 20% restocking fee, original shipping, and return shipping. 
  • In instances where the customer received FREE shipping, the shipping amount that BMP Tuning paid on behalf of the customer will be deducted from the total refund.
  • BMP Tuning's restocking fee is waived in the instance customer requests store credit as long as the item is being returned to BMP Tuning and not the manufacture directly.
  • Any orders that are returned to BMP Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our "Return and Exchange Policy", including a 20% restocking fee.
  • Any returns that are denied for any reason will be sent back to the customer at the customers expense. Any denied return left with BMP Tuning longer than 30 days is considered forfeited by the customer and will be disposed of by BMP Tuning at BMP Tuning's discretion.
  • Any order placed via Katapult are non-refundable; refunds, if required, will be issued via store credit only.

Route Shipping Protection - Refunds & Cancellations

  • Route shipping protection is an insurance purchased for your shipment. Because of this, any protection on items that have already been shipped cannot be refunded.
  • If your order is cancelled PRIOR to the items shipping, then the Route purchase can be refunded with the cancelled item(s). Once the order has shipped, we cannot refund the Route shipping protection.

Tariffs & Duties – No Refund Upon Return

  • BMP Tuning is not responsible for any tariffs, duties, or import fees charged by customs authorities or shipping carriers.
  • If you return an item, any tariff or duty you paid at delivery will not be refunded by BMP Tuning, as those are non-refundable government charges.
  • Refunds for returned items will be limited to the cost of the product (minus applicable fees), not including any tariffs or duties originally paid.
Additional Notes
  • Please ensure you understand your country’s import fee obligations prior to ordering.
  • If you have questions about potential tariffs, duties, or returns, contact us before placing your order—we’re happy to assist.
  • All existing policy conditions (restocking fees, RMA requirement, return shipping responsibilities) still apply as stated in the original policy.


Product Return Exemptions

Tuning Software And Cables

BMP Tuning will NOT accept returns for any tuning software or tuning cables. This includes, but is not limited to:

  • ECU Tunes
  • TCU Tunes
  • Tuning Cables such as IE POWERlink V4 Flash Cable, APR Ultralink, Unitronic UniCONNECT+ Cable, 034Motorsport Dynamic+ Tuning Cable
  • Plug and Play Tuners such as Burger Motorsports JB4, COBB AccessPort
  • OBDEleven Pro

Scratch & Dent, Open Box, and Clearance Items

There are absolutely no returns on any product sold as "Scratch & Dent", "Open Box", or "Clearance." 


Pricing Or Photo Errors

  • While we always try to provide the most accurate product and pricing information, we are humans and can make mistakes. If we listed an incorrect price or information for any product on our site, BMP Tuning reserves the right to refuse or cancel any orders placed. PRICING AND AVAILABILITY ARE SUBJECT TO CHANGE WITHOUT NOTICE.
  • We try to ensure that all products are represented properly in description and photo. However, due to photos provided from manufacturers, sometimes a photo might be outdated or a generic photo for the part may be used for the item. If you have any questions about any product, please contact us before placing your order.

 


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