Heating

Behind the dashboard of an MX5 NB (1998–2000) is an extensive system of air ducts, valves, and a heater core that regulates the interior temperature. In cold or humid conditions, the heater also plays a key role in defogging the windshield, ensuring clear visibility. The heat that enters the interior comes from the engine’s cooling system, where coolant continuously absorbs and releases heat, directly linking comfort and engine technology. In older cars, problems can arise due to leaks, stuck valves, or wear on control mechanisms, causing the air distribution system to function less effectively.