Over time clutches can wear and the thickness can decrease. Performing a PDK relearn will help the PDK verify clutch thickness and position. This is particularly useful after a clutch replacement or in cars with higher mileage.
The adaption process an be quite loud and the car may clunk or lurch somewhat violently. This is normal during the adaption process.
Closing Warnings and Precautions:
Use of inappropriate calibration/modification combinations may promote transmission damage.
Some higher mileage PDK cars may have driveability problems that may be exacerbated by flashing the PDK, most notably a shudder when starting from a stop at low throttle in 1st gear or reverse. In most cases a simple PDK fluid service is all that is needed to remedy the issue, however the issue may be more indicative of a failing valve body. A PDK Relearn will unfortunately not fix this issue. We suggest doing a PDK fluid service before installing the PDK flash if you are still running original fluid regardless of milage.