The Mercedes GLA 180 CDI (1500cc) 109hp (X156 - 2014 - 2016) produces 109bhp and 260Nm in standard form. Our Stage 1 ECU tuning file raises output to 135bhp and 310Nm, a gain of 26bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.