Where is the heater core located on a 1994 BMW 325i?

Answer 1

Hi. The heater core is under the dash on the passenger side. You must loosen all of the dash bolts on the passenger side,then lift the dash up and you'll see a black box. Take th cover off of the ox and the core will be inside of it! Your going to have to take off the two hoses from under the hood on the pass side. Then just slide the old core out and replace it!