So im 18 and i bought a 1993bmw 325i sedan, manual v6 engine from a friend with 150k miles. the car is in great shape (meaning exterior) and i dont know too much about bmw cars. A couple problems with the car is that my windows wont shut or open they just seem dead, the car leaks antifreeze as if its a just straight pouring out, and the car over heats within driving it around the block. It does not over heat if i have it sitting in the garage running though. i dont know what to do.