Mazda CX-7 Engine Cooling

Antifreeze Is Leaking From The “t” Area I Think That’s What It’s Called. We Replaced The Heater Hoses And Thermostat And It Was Fine...

About A Month Ago, The Serpentine Belt Came Off While I Was Driving. I Got The Belt Replaced, A Week Later My Heat Goes Out, So I Added Some...

I Have No Idea What This Is, But It Broken And Has Been Leaking What I Believe Is Coolant. Could You Tell Me What It Is From The Pictures...