hey folks,
I am troubleshooting an issue with SCR active tank. The residual range continuously decreases, even though I've topped up DEF to full twice in last 1500 km. I've 2700km left to drive :/
I've plugged the car to ISTA and did the readings, while driving, which can be viewed using below link (driving starts at 15 seconds).
Occasionally, I am getting CEL triggered by intermittent errors about SCR active tank fluid level sensor (attached error.jpg), which can be cleared, but comes back every now and then.
Few questions:
1) F15 only has active SCR tank, it does not have a passive one, correct? (if it has, i will have issues there since the readings are incorrect)
2) how is residual range value calculated? I understand i have sensor issues (intermittent), but as you see on the video once the car is started and drives, it does recognize that fluid level is at 100%...
thanks in advance for feedback.