350Z V6-3.5L (VQ35DE) (2006)
Coolant: Service and Repair
Changing Engine Coolant
WARNING:
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To avoid being scalded, do not change engine coolant when engine is hot.
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Wrap a thick cloth around cap and carefully remove cap. First, turn cap a quarter of a turn to release built-up pressure. Then turn cap
all the way.
CAUTION: Be careful not to allow engine coolant to contact drive belts.
DRAINING ENGINE COOLANT
1. Remove undercover with power tool.
2. Open radiator drain plug at the bottom of radiator, and then remove radiator cap. When drain all of engine coolant in the system, open water drain
plugs on engine cylinder block.
3. Remove reservoir tank as necessary, and drain engine coolant and clean reservoir tank before installing.
4. 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.
CAUTION: Be sure to clean drain plug and install with new O-ring.
Radiator drain plug: 0.78 - 1.6 Nm (0.08 - 0.16 kg-m, 7 - 14 inch lbs.)
If water drain plugs on cylinder block are removed, close and tighten them.
2. Make sure that each hose clamp has been firmly tightened.
3. Remove air relief plug on heater hose.
4. Fill radiator and reservoir tank to specified level.
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Pour engine coolant through engine coolant filler neck slowly of less than 2 l (2-1/8 US qt, 1-3/4 Imp qt) a minute to allow air in system to
escape.