At DC Remapping UK, we specialise in delivering safe, reliable performance upgrades for the BMW 30d. With our in-house 4WD linked dyno and years of experience, every BMW 330d, 430d and 530d remap is custom-calibrated for your exact vehicle.

We combine our bespoke ECU remapping with market-leading xHP gearbox tuning to unlock smoother gear changes, stronger mid-range torque, and long-term drivability.
 

Unlike generic mobile tuners, our process includes a full vehicle health check, before & after dyno printouts, and precise calibration carried out on site by BMW specialists.

Whether you’re after sharper throttle response, improved gearbox behaviour or maximum safe gains, our BMW 30d tuning packages ensure your car performs at its absolute best.