G35 Sedan V6-3.5L (VQ35DE) (2004)
Coolant: Service and Repair
Changing Engine Coolant
DRAINING ENGINE COOLANT
1. Remove engine undercover using power tools.
2. Open radiator drain plug at the bottom of radiator, and remove radiator cap. When draining all the engine coolant in the system, also perform the
following steps.
3. Remove the reservoir tank, drain the engine coolant and clean the tank before installing.
4. Drain engine coolant from both sides of cylinder block at B and C in the figure and cylinder block front at A in the figure when draining all the
engine coolant in the system.
5. Check drained engine coolant for contaminants such as rust, corrosion or discoloration. If contaminated, flush the engine cooling system.
REFILLING ENGINE COOLANT
1. Install reservoir tank if removed, and radiator drain plug.
2. Close and tighten cylinder block drain plugs securely if removed.
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Apply thread sealant to the threads of the cylinder block drain plugs.
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Use Genuine Thread sealant or equivalent.
Radiator drain plug: 0.78 - 1.6 Nm (0.08 - 0.16 kg-m, 7 -14 inch lbs.)
Cylinder block drain plug (LH): 17.6 - 21.6 Nm (1.8 - 2.2 kg-m, 13 - 15 ft. lbs.)
Cylinder block drain plug (RH): 17.6 - 21.6 Nm (1.8 - 2.2 kg-m, 13 - 15 ft. lbs.)
Cylinder block drain plug (Front side): 7.8 - 11.8 Nm (0.8 - 1.2 kg-m, 69 - 104 inch lbs.)