This part is basically a small radiator that lives inside your dashboard. It takes hot engine coolant and uses the blower fan to transfer that heat into the air blowing into your cabin. Think of it like a radiator for your car’s interior. It heats up, and the air flowing over it gets warmer, giving you heat for defrosting or just keeping comfortable on cold days. It’s not just about comfort though, it's a safety thing too, helping you keep windows clear. It's a key component of your vehicle’s heating and air conditioning system – specifically the heating side. Coolant circulates from the engine, through the heater core, and back. The blower motor pushes air across the fins of the heater core, and that’s what warms up the air you feel coming from your vents. It works with the blend door which mixes the heated air with outside air to control the temperature. It's all connected, of course, but the heater core does the actual heat creation. Well, if this thing goes bad, you’ll notice pretty quickly. You’ll likely get a sweet, almost sickly smell inside the car – that’s coolant leaking. You might see steam coming from the vents, or even a film on your windshield. And, of course, you’ll lose heat. A failing heater core can also cause your engine to overheat if the leak is significant. It acts like a shield against the cold, and when it fails, you definitely feel it. We carry a good selection of these at Fixparts Online, and it’s something you don’t want to put off repairing if you suspect a problem. MAHLE quality assured: Interior Heat Exchanger (MPN AH94000S) comes with a 12-month warranty!

About MAHLE

Mahle is a leading German supplier of engine components and thermal management solutions, celebrated for its technological innovation. Based in Germany, Mahle drives advancements in automotive efficiency and sustainability.

Why Choose MAHLE?

• MAHLE parts are built to last, using high-quality materials and advanced engineering so you get reliable performance for years to come. • We make a huge range of parts, from engine components to filters and HVAC systems, meaning you can get almost everything you need from one trusted brand. • MAHLE is an original equipment supplier to many major car manufacturers, so you know our aftermarket parts meet the same tough standards. • We’re constantly innovating to improve our parts and develop new technologies, keeping your vehicle running efficiently and smoothly. MAHLE delivers excellence, FixParts Online delivers to your door.