Component Description

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CVT Oil Warmer

The CVT oil warmer (1) is installed on the front part of transaxle assembly.

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When engine is started while engine and CVT are cold, engine coolant temperature rises more quickly than CVT fluid temperature. CVT oil warmer is provided with two circuits for CVT and engine coolant respectively so that warmed engine coolant warms CVT quickly. This helps shorten CVT warming up time, improving fuel economy.
A cooling effect is obtained when CVT fluid temperature is high.

CVT Fluid Cooler

The CVT fluid cooler is installed to the vehicle front LH.

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The CVT fluid cooler prevents CVT fluid temperature from an abnormal increase while driving the vehicle. When flowing into the CVT fluid cooler, CVT fluid is cooled by driving blast while driving the vehicle.

Bypass Valve

The bypass valve (1) is installed to the CVT fluid cooler.

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Bypass valve controls CVT fluid flow.
When CVT fluid temperature is low, the bypass valve is open. Most of CVT fluid therefore returns to the transaxle without flowing into the cooler core that has larger flow resistance.

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When CVT fluid temperature rises [to approximately 65 deg.C (149 deg.F)], bypass valve fully closes and allows CVT fluid to flow into cooler core. CVT fluid flowing into cooler core is cooled by air stream caused by vehicle travel and returned to transaxle.

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Heater Thermostat

The heater thermostat (1) is installed on the front part of transaxle assembly.

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The heater thermostat opens and closes with set temperature.