CCVs are the same. The CCV pic above has foam on it. It's designed for cold weather use. My climate is short winters. Super hot summers. The extra heat will help separate oil and fumes. The big rear intake hose goes to a check valve of some kind. The end connects into the air intake tube. BMW calls the assembly a sucking jet pump. 
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'06 X5 3.0i - bought @143,123 miles (12/26/20)
Last edited by X5chemist; 04-21-2024 at 05:38 PM.
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