Diamante V6-3.5L SOHC (2003)
Coolant: Service and Repair
ENGINE COOLANT (Change)
1. Remove the heat protectors (front and rear) from the exhaust manifold.
2. Loosen the radiator drain plug, remove two drain plugs from the engine block (one for each bank) and remove the radiator cap to discharge the
coolant.
3. Remove the reserve tank and discharge the coolant.
4. When the coolant has been discharged, pour water through the filler port to flush the coolant passage.
5. Coat the threads of the engine drain plugs with the specified sealant and tighten the plugs to specification.
Specified Sealant: 3M Nut Locking Part No. 4171 or equivalent.
Tightening torque: 40 Nm (29 ft.lbs.)
6. Fit the radiator drain plug securely.
7. Mount the reserve tank.
8. Slowly pour coolant into the radiator to the brim and also into the reserve tank to the full line.
Recommended antifreeze:
DIAQUEEN LONG LIFE COOLANT (Part No. 0103044) or High quality ethylene glycol antifreeze coolant.
Quantity: 9.5 cu.dm (10.0 qts.)
9. Install the radiator cap securely.
10. Start the engine and warm up until the thermostat opens.
11. Race the engine up to around 3,000 r/min several times then stop the engine.
12. When the engine has cooled down, remove the radiator cap and add coolant up to the brim. Add coolant to the reserve tank up to the FULL line.