Gearbox Remapping and Cloning Service
Need gearbox remapping or TCU cloning?
Gearbox remapping for supported transmission calibration, plus TCU data transfer, VIN pairing and cloning for replacement module jobs.
Gearbox Remapping and Cloning Service
- ✓Transmission and module details checked first
- ✓TCU data backed up where cloning is required
- ✓Shift calibration, VIN and coding work where supported
- ✓Fast quote from reg and part numbers
Gearbox remapping and TCU cloning for supported vehicles
Gearbox remapping adjusts supported transmission software to improve shift timing, torque limit handling, launch behaviour and drivability. It is commonly requested on automatic, DSG, CVT and semi-automatic gearboxes where the transmission control unit can be safely read and written.
TCU cloning is used when a gearbox ECU / TCU has failed or is being replaced. The original identity, coding, calibration and adaptation data are transferred or matched to the replacement module where the hardware and software are compatible.
Send your registration, gearbox type, and any original or replacement part numbers if available. We will confirm whether remapping, cloning, coding or a different route is suitable before booking.
When gearbox remapping or cloning is needed
- Shift calibration: Improve supported shift strategy, responsiveness and torque handling after a remap or hardware change.
- Failed gearbox ECU: Water damage, internal faults or communication failure can require a replacement module.
- Used replacement TCU: Donor modules need correct data before they will behave like the original.
- VIN / coding mismatch: Incorrect identity or software can cause warning lights, no drive or poor shift behaviour.
- Adaptation and calibration transfer: Matching the replacement to the vehicle reduces risk after fitting.
What you get with BSG Automotive
- Gearbox type, software and module details checked before work
- Transmission software adjusted only where the platform is supported
- Data read and backed up where the original unit is readable
- VIN, coding, calibration and immobiliser-related data handled where supported
- Clear advice if remapping or cloning is not possible due to module damage or incompatibility
- Mobile or workshop-based support depending on the module and vehicle
If the gearbox software or replacement TCU is not suitable, we would rather tell you before work begins than leave you with a gearbox that still will not communicate or shift correctly.
Frequently Asked Questions
Cloning copies the entire software image from your old TCU to the new one, making it a direct 'plug and play' replacement.
Usually, we just need the original and replacement TCU units. However, bringing the car allows us to test the replacement fully.
Most gearbox remapping or TCU cloning jobs are completed within 1-2 hours once the vehicle or modules are ready. The process can involve reading the transmission software, applying supported calibration changes, transferring data to a replacement unit, and verifying communication.
We support gearbox remapping and TCU cloning on selected automatic, DSG, CVT, and semi-automatic gearboxes across makes including BMW, Mercedes, VW, Audi, Ford, Land Rover, and many more. Contact us with your vehicle details for confirmation.
Yes. Because the clone is an exact copy of the original software and calibration data, the replacement TCU will function identically — including shift patterns, adaptation values, and communication with the ECU.
In some cases, we can still recover data from a non-functional TCU using specialist equipment. If recovery isn't possible, we may be able to programme a replacement unit using alternative methods. Contact us to discuss your specific situation.
Significantly, yes. Main dealer TCU replacement often involves ordering a brand-new unit and lengthy programming procedures. Our cloning service allows you to use a more affordable used replacement unit with a quick turnaround.