Had today AC-service (Y26SE), checking leaks and changing the refrigerant liquid etc. All ok except we found that the lower filling valve in front of the car started to leak.
Took a closer look and found that the leaking one has not a Filler Valve (inner part) like the other in the rear. So in rear the valve is like a tyre valve or like part No. 6 in the enclosed pic. But the front one is just a hole. In the hole there is something which you can push and increase the leakage but leak does not stop when releasing. Acc. to 7zap I seem to have construction referred as part 2. I guess that in this construction the separate inner part really does not exist. Any experience about this? In the plastic protection gap there is a rubber seal, If I tighten it I think that the leak stops. Strange, do I need the whole Part 2 or did I understand this in a wrong way?