This valve basically regulates the flow of coolant to your heater core. Coolant’s coming from the engine, and this valve decides how much of it actually gets into the part of the system that provides heat for the cabin. It can fully open, fully close, or anything in between, adjusting to what your temperature setting is – so if you want more heat, it lets more coolant through. It's a relatively simple component, but it has a pretty specific job. Think of it as a gatekeeper for your heater. The engine creates heat, and the coolant carries it. This valve controls whether that heat actually reaches the air blowing into your car. It works with the blend door – the blend door mixes the heated air with outside air, but the coolant control valve needs to be working correctly to even have heated coolant available for mixing. It's part of the whole HVAC system, naturally. If this valve fails, you'll probably notice if your heater stops working, or only blows lukewarm air even when the engine is fully warmed up. Sometimes it can get stuck open, which isn’t usually a huge deal other than maybe a slightly cooler engine temperature overall, but more commonly it gets stuck closed, meaning no heat. It’s not something that will leave you stranded, but a cold car in winter is no fun. You can find these pretty easily online, sites like Fixparts Online have a good selection, and they're usually a fairly straightforward repair. Top choice for reliability: Coolant Control Valve (MPN 7.02256.41.0) includes a 12-month warranty!

About Pierburg

Pierburg specializes in emission control, air supply, and fuel systems for sustainable and efficient vehicles.

Why Choose Pierburg?

• Pierburg parts are known for their quality and long life, saving you money on repairs in the long run. • We make parts for many popular car brands, so there’s a good chance we have what you need. • Our parts are designed to meet or exceed the original manufacturer’s standards, ensuring a good fit and reliable performance. • Pierburg has been a trusted name in the auto parts industry for over 100 years – we have a history of innovation and reliability. Pierburg delivers excellence, FixParts Online delivers to your door.