At my SG 2 the RDS popped up too little air. At the tank and controlled 2.1 bar then increased to 2.3 bar – 5 km driven – error still there. Workshop I should drive 15 KM to calibrate the system – so done – still glows. Then as someone made the suggestion – increase to 2.5 bar – to the tank – made. After 2-3 KM the error RDS was too little H R – away. Apparently the sensor was blown free at the valve. Has not come back since 20 KM.