Parts for your 2018 Mitsubishi Eclipse cross-Heater tap

Heater Tap and Its Role in the 2018 Mitsubishi Eclipse Cross

If you're looking into the heater tap on a 2018 Mitsubishi Eclipse Cross, it's worth knowing that this particular vehicle does not use a traditional heater tap. The heater tap, also known as a heater control valve in some circles, is a component found in older or more basic cooling and heating systems. Its main job is to regulate the flow of engine coolant to the heater core, effectively controlling the heat output inside the cabin.

So why is there no heater tap on the 2018 Mitsubishi Eclipse Cross? Well, the reason comes down to the way modern cars manage their heating and cooling systems. The Eclipse Cross uses a sophisticated climate control system that relies more on electronic controls and blend doors rather than mechanical valves like a heater tap. Instead of physically shutting off or restricting coolant flow to the heater core, the system modulates cabin temperature primarily through air mix control, directing air through the heater core or bypassing it using blend doors controlled by motors.

This approach means fewer moving parts in the coolant path, which can reduce the chances of leaks or failures associated with heater taps and valves. It also allows for more precise temperature control, which is great for driver and passenger comfort. Electronic control systems in vehicles like the Eclipse Cross can adjust heating output quickly and smoothly, something a simple mechanical valve can struggle to achieve.

Another factor is the cooling system's design itself. Modern engines often have coolant flow designed to circulate continuously through the heater core, regardless of cabin temperature settings. The temperature inside the cabin is then managed by regulating how much air passes through the heater core or the air conditioning evaporator, rather than stopping coolant flow altogether. This not only helps in maintaining engine temperature but also allows quicker warm-up times for the cabin during cold starts.

For owners of a 2018 Mitsubishi Eclipse Cross, this means there's no need to worry about replacing or maintaining a heater tap as part of the regular service schedule. Instead, if you notice issues like your heater not warming the cabin properly, the faults are more likely related to the climate control system's electronics, blend doors, or air distribution rather than a heater valve. In many cases, problems might stem from low coolant levels, a faulty thermostat, or air trapped in the cooling system.

When servicing the Eclipse Cross, technicians will focus on thoroughly inspecting the coolant system, checking the thermostat operation, and ensuring the heater core and associated ducts are free from blockages. Electronic components such as temperature actuators and blend door motors can sometimes fail, causing inadequate heating or inconsistent cabin temperature. Diagnosing these faults often requires using specialised scan tools to communicate with the vehicle's HVAC (Heating, Ventilation, and Air Conditioning) system.

If the heater seems to be blowing cold air, first check the coolant level. Since the heater core depends on hot engine coolant, low levels can significantly impact performance. Additionally, if the thermostat is stuck open, the engine might not reach optimal temperature, reducing the heat available to warm the cabin. These are the most common issues, rather than any problems with a heater tap.

Overall, the omission of the heater tap on the Mitsubishi Eclipse Cross signals a move towards more modern, electronically controlled climate systems. Not only does this create fewer mechanical points of failure, but it also helps provide a more comfortable and easily adjustable cabin environment. This is good news for owners, as it simplifies maintenance and reduces the chances of leaks or valve failures in the heater circuit.