Yep, annoying as heck. I thought I would close mine up in the winter too, but didn't need to. There was plenty of heat. And yes, it's a stupid but I don't believe it was a problem when designed due to 100% gas. Just my opinion, but I think it reared it's head when the E90 came on scene.Yeah come winter time I'll probably take the spacers out to help keep it warm enough and so I'll have heat. I dont understand the design because theres no where for the heat to go as it is cooling down. I'm so happy to finally have the heat sink problem fixed.
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