The high under hood temperatures vs. plastic battles that I fought with my BMW continue with my ATS. The cap for the washer fluid container has broken off the ring that held it to the neck of the container. Plastic hinges do not cut it in high heat environments. The cap evidently needs the ring to stay attached to the container. It’s not even a friction fit. I have it taped down for the moment. Question: Is the cap and attached ring available as a service part? Seems like replacing the entire container for the sake of the cap would be a major PITA. Thanks in advance for any ideas or info.