TCU calibrations for the DSG gearbox are still in development phase for certain EA888.4 applications. 2022 cars cannot yet have TCU installed, whilst 2021 cars have some gearbox codes ready to flash immediately and others are in development. Your RacingLine Software installer can advise you on availability.
If TCU Calibration is available for your car, it is certainly recommended - and essential if you are choosing the High Torque ECU Stage 1.
If no TCU Calibration is available for your car currently, we recommend our Lower Torque ECU calibration. Remember, with our Free of Charge upgrades for life, you can always buy TCU in future, then upgrade to the High Torque calibration for free.
By adding TCU alongside your ECU, the engine's torque output is increased quite significantly versus a car with ECU tuning only.
Our well-proven TCU tuning will not only handle the power gain with higher clutch pressures, it also reprograms the shift characteristics to give a much more natural and enjoyable drive
The RacingLine OEM+ TCU Dynamic Software & Tuning is an essential upgrade to get the most out of any modified DSG or S-tronic car.
Several years of road and track development have given us the smartest transmission software on the market: by continually feeding the engine ECU’s torque demands through to the gearbox’s controller, the system dynamically calculates and adjusts the DSG’s variable clutch pressures to suit whatever your power output is.
Meaning that just one RacingLine TCU software upgrade will serve your car from standard, through Stage 1, right up to Stage 3 and beyond. So unlike some, there's no need for a new TCU calibration each time you increase your car’s performance.
What does TCU
DSG tuning do?
Our engineers reprogram the gearbox's calibration inside the TCU (Transmission Control Unit). This allows the transmission to maintain higher torque levels through our dynamic clutch pressure strategy, right up to a mighty 19 bar pressure. The result? Shifts are even faster, giving harder acceleration through the gears, whatever level of performance your car has - up to and beyond Stage 3.
Meanwhile, the driving mode strategy itself is optimised to suit higher power levels, giving a more natural gear selection profile. Flick the car over to manual, and at last you'll have true gear control at your fingertips - no auto-upshift*, no kick down until you command it (or drop back to D/S modes).
Not only that, launch control will get you off the line quicker through allowing more boost at launch and increased launch RPM, combined with a less intrusive traction control in launch mode.
* auto-upshift disable not available on certain gearbox codes