Thermostat
- Valve opening: 80.5–83.5°C (177–182°F)
- Maximum lift: 8 mm at 95°C (0.315 in at 203°F)
- Valve closing: 77°C (171°F)
2020 Nissan Rogue · 2.5L QR25DE · FWD and AWD manual examples
2020 Nissan Rogue Thermostat Replacement: Manual-Backed Overview
The checked 2020 Rogue S FWD and AWD service manuals include thermostat and water-control-valve removal, installation, inspection, and specifications. Nissan identifies the 2020 Rogue engine as the 2.5L QR25DE. Match the drivetrain and VIN to the applicable manual before starting.
The S manual index says the technical manual also applies to same-drivetrain SL and SV variants, except for possible differences in Labor Times, Fluids, and Tire Fitment. This page therefore limits exact procedure evidence to the checked S FWD/AWD selections.
Before opening the cooling system
Work only with a cold engine. Nissan warns that hot, pressurized coolant can cause serious burns. The thermostat procedure also cautions against spilling coolant on the drive belt. Support the vehicle safely before removing the engine under cover; never work beneath a vehicle supported only by a jack.
What the checked factory procedure covers
- Drain engine coolant with the engine cold. Remove the engine under cover, disconnect the lower radiator hose at the water inlet, remove the upper exhaust-manifold heat shield, and remove the water inlet and thermostat.
- Install in reverse order. Use a new rubber ring; seat the thermostat flange fully, keep the mating surface undamaged, and point the jiggle valve upward within the manual's ±20° allowance.
- If bench-checking a removed thermostat or water control valve, heat and stir the water while checking opening, lift, and closing against the factory specifications.
- Refill coolant, pressure-check for leaks with the specified tester arrangement, warm the engine, then inspect visually for coolant leaks.
This is a concise guide to the listed manual steps, not a substitute for the linked procedure, vehicle-specific service precautions, or safe lifting practices.
Thermostat and coolant specifications
Coolant
The manual describes the factory fill as 50% Genuine Nissan Long Life Antifreeze/Coolant (blue) and 50% water; it says additional cooling-system additives are unnecessary and specifies a genuine Nissan radiator cap.
Open coolant guidanceApproximate system capacity
8.1 US qt (8⅝ Imp qt) with the reservoir at MAX; reservoir capacity is 0.61 US qt (⅝ Imp qt). These are listed capacities, not a promised service refill amount.
Open approximate capacity sourceManual diagrams and orientation
The checked FWD and AWD manual sections include the thermostat and water-inlet exploded view, jiggle-valve orientation, and bench inspection figures. Open the matching manual section to inspect each diagram in context.
Parts and tool searches
The manual says not to reuse the thermostat rubber ring and identifies a radiator-cap tester with adapter for the post-install pressure check. These are search links, not verified fitment; confirm by VIN and check the exact tester adapter required.
As an Amazon Associate, AllOEMManuals earns from qualifying purchases. Search results do not confirm fitment.
Reviewed manual sections
The checked S FWD and AWD thermostat sections contain matching repair instructions. Read the summary here, then open the manual selection that matches your drivetrain for the complete procedure and precautions.
hot-coolant warning
Nissan warns not to remove the radiator cap while the engine is hot because pressurized coolant can cause serious burns. Let pressure escape slowly before removing the cap.
The checked procedure drains coolant with the engine cold, cautions against spilling it on the drive belt, removes the engine under cover and lower radiator hose at the water inlet, removes the upper exhaust-manifold heat shield, then removes the water inlet and thermostat.
installation
The manual says installation follows removal in reverse. Seat the thermostat flange fully in the rubber ring, install a new rubber ring, keep the mounting surface free of dents or flaws, and orient the jiggle valve upward within the stated angle tolerance. Refill coolant and check for leaks.
thermostat inspection after removal
The factory check suspends the thermostat and water control valve in heated, stirred water, checks opening and maximum lift, then cools the water to check closing. If a component is outside its specification, the manual directs replacement of the thermostat, water control valve, or both.
inspection after installation
After installation, the manual calls for a coolant leak check with a radiator-cap tester adapter and tester, followed by warming the engine and visually checking for leaks.