Altima L4-2.5L (QR25DE) (2009)
Coolant: Service and Repair
ENGINE COOLANT
Changing Engine Coolant
WARNING:
-
To avoid being scalded, never change the coolant when the engine is hot.
-
Wrap a thick cloth around cap and carefully remove the cap. First, turn the cap a quarter of a turn to release built-up pressure. Then
push down and turn the cap all the way to remove.
DRAINING ENGINE COOLANT
1. Remove the engine undercover using power tool.
2. Open the radiator drain plug at the bottom of the radiator and remove the radiator filler cap. This is the only step required when partially draining
the cooling system (radiator only).
CAUTION:
Do not allow the coolant to contact the drive belts.
3. Follow this step for heater core removal/replacement only. Disconnect the upper heater hose at the engine side and apply moderate air pressure [
103.46 kPa (15 psi, 1.055 kg/cm2) maximum air pressure]
into the hose for 30 seconds to blow the excess coolant out of the heater core.
4. When draining all of the coolant in the system, remove the reservoir tank and drain the coolant, then clean the reservoir tank before installation.
CAUTION:
Do not allow the coolant to contact the drive belts.
5. When draining all of the coolant in the system for engine removal or repair, open the drain plug on the cylinder block.
6. Check the drained coolant for contaminants such as rust, corrosion or discoloration.
If the coolant is contaminated, flush the engine cooling system.
REFILLING ENGINE COOLANT
1. Install the radiator drain plug. Install the reservoir tank and cylinder block drain plug, if removed for a total system drain or for engine removal or
repair.
-
The radiator must be completely empty of coolant and water.
-
Apply sealant to the threads of the cylinder block drain plugs. Use Genuine High Performance
Thread Sealant or equivalent. Refer to See: Specifications/Fluid Type Specifications.
2. If disconnected, reattach the upper radiator hose at the engine side.
3. Set the vehicle heater controls to the full HOT and heater ON position. Turn the vehicle ignition ON with the engine OFF as necessary to activate
the heater mode.
4. Install the Tool by installing the radiator cap adapter onto the radiator neck opening. Then attach the gauge body assembly with the refill tube and
the venturi assembly to the radiator cap adapter.
Tool number : KV991J0070 (J-45695)
5. Insert the refill hose into the coolant mixture container that is placed at floor level. Make sure the ball valve is in the closed position.
-
Use Genuine NISSAN Engine Coolant or equivalent, mixed 50/50 with distilled water or demineralized water. Refer to See: Engine Oil.