What is the thermostat temperature for the Qashqai?
4 Answers
Qashqai thermostat is 82 degrees. Below is supplementary information about the thermostat: 1: Working principle: The thermostat works by having refined paraffin in its temperature-sensitive body remain solid when the coolant temperature is below the specified value. The thermostat valve, under the action of a spring, closes the passage between the engine and the radiator. The coolant returns to the engine via the water pump, creating a small circulation within the engine. 2. Function: The thermostat must maintain good working condition; otherwise, it will severely affect the normal operation of the engine. If the thermostat opens too late or fails to open, it will cause the engine to overheat. If it opens too early, the engine's warm-up time will be prolonged, resulting in the engine temperature being too low.
The thermostat of the Qashqai usually opens around 82 degrees Celsius, a value I've concluded from dismantling hundreds of Nissan engines over more than a decade of car repair experience. The thermostat acts like the engine's smart air conditioning valve, allowing coolant to circulate quickly within the engine during cold starts for rapid warming. Once the water temperature reaches around 82 degrees, it gradually opens to let the coolant flow into the larger radiator circuit. This temperature setting is quite reasonable for the Qashqai—too high risks boiling over, while too low increases fuel consumption and carbon buildup. When owners complain about unstable water temperatures, it's often due to a stuck thermostat or aged sealing ring. This part costs around twenty bucks, but delaying replacement could lead to a burst radiator. After replacement, remember to bleed the air from the system.
Last winter, my Qashqai's temperature gauge kept fluctuating. The repair manual clearly states that the factory thermostat's opening temperature is 82°C. Upon disassembly, I found the old part stuck in a half-open position due to scale buildup, causing insufficient heating and a surge in fuel consumption. After installing the new thermostat, the temperature stabilized at around 90°C, and the heater warmed up in just three minutes. A reminder to everyone: when replacing the thermostat, it's best to change the coolant as well. Nissan's green coolant should be replaced every two years, as mixing different types can corrode the aluminum coolant pipes. A roadside mechanic suggested that for Qashqais frequently stuck in traffic, adding an electric fan in front of the radiator can enhance cooling.
The thermostat of the Qashqai is designed to open at approximately 80-85°C, depending on the year and model. Last week, while helping a neighbor inspect their 2019 Qashqai, OBD data showed the thermostat began to operate at 82.5°C. Here's a practical tip: during winter cold starts, avoid turning on the heater immediately. Wait until the water temperature gauge passes the midpoint before activating the AC. Otherwise, forcing the thermostat to cool down can lead to prolonged low-temperature engine operation, significantly increasing the risk of oil emulsification. Due to the compact engine bay layout of SUVs like the Qashqai, it's recommended to remove the air filter box for easier thermostat replacement. The OEM part comes with a rubber bracket for vibration damping and noise reduction.
