1) Overview: What’s new in this release 🎁

This is TuningBot’s biggest gearbox services update of 2024. We’ve worked hard to deliver professional TCU (Transmission Control Unit) tuning solutions that complement your existing engine tuning capabilities.

New services included

• ⚠️ DTC OFF – Disable gearbox diagnostic trouble codes
• 💪 Torque Limiter Removal – Unlock full torque capacity
• 🚀 Launch Control – Enable or optimize launch control systems
• 🏁 Speed Limiter Removal – Remove transmission-side speed restrictions

Supported transmission families

• VAG DSG – DQ200, DQ250, DQ380, DQ381, DQ400, DQ500, DL501
• BMW / ZF – ZF8HP (8-speed automatic)
• Mercedes / Getrag – VGS2, VGS4 (7-speed DCT)
• Renault / Getrag – DC4 (dual-clutch)

As the holidays approach, this update will help you maximize performance and deliver a smoother, more exciting driving experience to your customers.

2) DTC OFF for gearboxes ⚠️

Diagnostic Trouble Code (DTC) OFF for gearboxes disables transmission-related error codes that may appear after modifications, component removal, or when using the gearbox in off-road or motorsport applications.

When DTC OFF is useful

• After engine tuning – When increased torque triggers gearbox overload warnings
• Component modifications – After removing or replacing sensors
• Motorsport applications – When gearbox operates outside normal parameters
• Swap projects – When using a gearbox with a different engine than originally designed

Supported ECUs for DTC OFF

⚠️ Important: DTC OFF should only be used for off-road, motorsport, or export applications where local regulations permit. Always ensure the gearbox is mechanically sound before disabling error codes.

3) Torque Limiter Removal 💪

Have you ever noticed your gearbox limiting your engine’s potential during tuning? Many gearboxes come with an integrated torque limiter that restricts power transfer to protect mechanical components.

With our Torque Limiter Removal Module, you can unlock the full torque capacity of your gearbox without compromising the stability and durability of its mechanical parts.

How torque limiters work

Transmission Control Units (TCUs) monitor input torque and compare it against programmed limits. When torque exceeds these thresholds:

• The TCU requests engine torque reduction via CAN bus
• Gear shifts may be delayed or prevented
• Launch control and performance modes are restricted
• Warning lights may appear on the dashboard

These limits are often conservative and leave significant margin for performance gains.

One-click solution

Achieving this is easy with our intuitive, one-click solution! Simply:

1. Read the TCU file using your tuning tool
2. Upload to TuningBot and select “Torque Limiter Removal”
3. Download and flash the modified file
4. Enjoy full torque delivery across the entire rev range

Supported transmissions for Torque Limiter Removal

✅ Professional tip: Always combine torque limiter removal with engine torque increases for optimal results. This ensures smooth power delivery and prevents the ECU from fighting the TCU.

4) Launch Control activation 🚀

Launch Control is a performance feature that optimizes acceleration from a standstill by managing clutch engagement, torque delivery, and wheel slip for maximum traction.

What Launch Control does

• Holds optimal RPM – Maintains engine at peak torque point
• Controls clutch slip – Prevents clutch damage while maximizing traction
• Manages torque delivery – Gradually increases power to prevent wheel spin
• Coordinates ECU and TCU – Ensures engine and transmission work together perfectly

Applications

• 🏁 Motorsport – Drag racing, circuit racing, rallycross
• 🎯 Performance enthusiasts – Street-legal vehicles with track capability
• ⚡ High-power builds – Vehicles with significant engine modifications

Our Launch Control service can either activate factory-disabled systems or optimize existing launch control parameters for better performance.

5) Speed Limiter Removal 🏁

Many vehicles have speed limiters programmed into both the ECU and TCU. While engine-side limiters are well-known, transmission-side limiters are often overlooked.

Why remove transmission speed limiters?

• Complete limitation removal – Disabling only the ECU limiter may leave TCU limits active
• Gear shift prevention – Some TCUs refuse to shift beyond certain speeds
• Performance testing – Essential for top-speed runs and autobahn use
• Export vehicles – Different markets have different speed regulations

How it works

Our Speed Limiter Removal service modifies the TCU calibration to:

• Remove maximum speed thresholds
• Allow gear shifts at all vehicle speeds
• Eliminate speed-related warnings and restrictions
• Coordinate with ECU speed limiter removal for complete freedom

⚠️ Legal notice: Speed limiter removal should only be performed for off-road, motorsport, or export applications where permitted by local regulations. Always respect traffic laws and drive responsibly.

6) Complete list of supported gearbox models 📋

🔴 VAG (Volkswagen, Audi, Seat, Skoda)

🔵 BMW / ZF

⚫ Mercedes-Benz / Getrag

🟡 Renault / Getrag

7) Benefits for your business 💼

Adding gearbox tuning services to your portfolio brings significant advantages:

💰 Increased revenue per vehicle

• Upsell opportunity – Add €200-€500 per job with gearbox tuning
• Package deals – Combine engine + gearbox tuning for premium pricing
• Solve more problems – Fix torque limiter and DTC issues that frustrate customers

🎯 Complete tuning solution

• No more limitations – Engine tuning without gearbox tuning leaves performance on the table
• Professional approach – Address both engine and transmission for optimal results
• Customer satisfaction – Deliver smooth, complete power delivery

⚡ Competitive advantage

• Stand out – Many tuners don’t offer gearbox services
• Attract serious customers – Performance enthusiasts want complete solutions
• Build reputation – Become known for comprehensive tuning expertise

🛠️ Easy implementation

• Same tools – Use your existing ECU tuning equipment
• Same workflow – Read, upload, download, flash
• Expert files – TuningBot provides tested, safe calibrations
• Quick service – 5-15 minute turnaround time

🎁 Christmas special: Make this Christmas special by offering your customers the gift of top-notch technology. This update will help you maximize performance and deliver a smoother, more exciting driving experience.

Conclusion 🎄

We’ve worked hard to make this the best gearbox services release of 2024, and we’re confident you’ll love it!

This comprehensive update covers everything from diagnostic trouble code management to performance optimization across 11 major transmission families. Whether you’re working on VAG DSG transmissions, BMW ZF8HP gearboxes, Mercedes DCT units, or Renault dual-clutch systems, you now have professional-grade solutions at your fingertips.

🎅 From the TuningBot Team: Enjoy the new update and make this Christmas special by offering your customers the gift of top-notch technology. Happy tuning, and happy holidays!