Mine looked fine and completely crumbled when I replaced it. I mean crumbled, I tool the bolt off and the head came off with the rest left in the engine and I had to eventually just get it out with a nylon brush because using a pic would just scrape out little bits at a time.
The plastic was coated in a brown goo that had the color of a crema on espresso. All of the plastic fittings I pulled had this brown goo in their seams, coating the inside, etc. I ended up replacing everything after that, including the radiator because I was worried I might have damaged it removing the radiator hoses (everything was GLUED on).
At this point Im going on a war against hot plastics in my car. Seeing all of these caps break, fittings crumble, floats breaking off, etc. I really dont want a relatively cheap piece of plastic stranding me.
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