OEM Lexus A/C & Heating Parts

Your Nissan vehicle features a factory air system that keeps your cabin temperature comfortable no matter how bad the weather outside. How it cools, heats, and ventilates your passenger space isn't a mystery, to be honest.

How Your HVAC System Works

Heating is the most straight-forward. Hot engine coolant gets drawn from the engine into a heater core. A fan blows over the core's fins, sending warm air through the vents and into the cabin.

Cooling involves more parts in the process. First, a compressor pressurizes refrigerant and transforms it into hot gas. A condenser then cools that gas and turns it into a liquid. The liquid flows through an expansion valve and is turned back into a gas, but now at a lower pressure. An evaporator cools the gas down with a fan. Chilled air is then sent through your vents and into the passenger space.

How to Spot AC System Problems

Eventually, AC system parts can begin to go bad. Signs of this include:

• A steamy cabin atmosphere
• You detect the syrupy sweet smell of coolant
• You have problems maintaining a consistent cabin air temperature

The first thing you want to do is check your cabin air filter to see if it's clogged or degraded. If it's in good condition, the problem likely lies within your AC system. When you do need to replace a part, make sure that you choose the right one for the role. That means choosing genuine Nissan AC system parts, since they're the only ones that are guaranteed to be compatible with your model. Find what you need in our online auto parts inventory. Buy now and we'll ship your order right to your door!