what is this called?

  1. #1
    Can someone tell me what this is called, its a plastic piece that is attached to the back of the engine, and the lower rad hose attached to it

  2. #2
    It's a water outlet,I know because mine cracked then leaked.so I've just had it replaced.its a dealer only part.
  3. #3
    Its part of the cooling system or in this case, heating system as its for the injection system to warm when cold and cool when warm to maintain the fuelling efficiency in the engine