This housing basically holds the heater core itself – that's the little radiator that warms the air blowing into your cabin. It directs coolant to and from the heater core, and it keeps everything sealed up so you don’t have leaks. It also provides mounting points to attach the whole assembly to the vehicle. Think of it as the protective shell for your heater core. The heater core itself is pretty delicate, and this housing keeps it safe from impacts and debris. It's part of the whole HVAC system, working with the blower motor, vents, and controls to get warm air where you need it. It’s where the warmth starts inside your vehicle. Well, without it, you're going to have serious heating problems. If the housing cracks or corrodes, you’ll get coolant leaks – which can be messy and damaging to other parts. You’ll notice if you have a leak usually by a sweet smell inside the car, or seeing coolant under the vehicle. If it fails badly, you might have no heat at all, obviously. A good housing acts like a shield, preventing leaks and ensuring your heater core can do its job. If yours is looking rough, replacing it is a smart move. You can find a good selection of these over at Fixparts Online, and honestly, it's a pretty straightforward repair for someone comfortable working on cars. Drivers trust Audi: Housing (MPN 4L0819953R) comes with a 12-month warranty!

About Audi

Audi is a renowned German automobile manufacturer known for its innovative engineering, luxurious designs, and cutting-edge technology, delivering premium vehicles that blend performance and sophistication.

Why Choose Audi?

• Audi parts are designed specifically for your vehicle, ensuring a perfect fit and optimal performance. • Using genuine Audi parts helps maintain your vehicle’s value and original quality. • We offer a wide range of parts, from everyday maintenance items to complex components. • Audi parts are rigorously tested to meet high standards for safety and durability, giving you peace of mind. Audi – trusted quality, available at FixParts Online!