3362365 - 0010T20 ENGINE COOLANT - CHANGE

1. Undo the expansion tank cap.

Do not remove the tank cap when the engine is hot as there is a risk of scalding.

Position a suitable container for collecting the coolant.2. Disconnect the lower radiator hose.3. Open the bleeds (3a) and (3b) on the radiator and the heater return hose. Prepare a mixture of 50% water/Paraflù in a container in order to refill the circuit.

	Type	Component	Description	Qty.
-	Fluid [I]	CHANGE ENGINE COOLANT	Mixture of 50% PARAFLU UP/water	5.25

1. Connect the lower radiator hose replacing the retaining band.Slowly introduce the fluid into the special filler on the expansion tank until the fluid comes out of the bleed on the radiator.2. Close the bleed screw on the radiator (at this point the level of the fluid will be above the MAX reference).3. Continue introducing the fluid until the tank is completely full and the fluid comes out of the bleed on the heater return hose; then close the bleed screw.Stop the introduction of the coolant. At this point the tank will be almost completely full (level with the filler, exceeding the MAX level).4. Tighten the expansion tank cap fully. For vehicles with air conditioning, make sure that the air conditioning system is not switched on (OFF position).Start up the engine and let it idle for about 2-3 minutes.Carry out periodic (every 30 seconds) gradual accelerations up to 3000 rpm.This operation should be carried out until the engine cooling fan cuts in at least three times.During this stage of the procedure, if the fluid level gets close to the MIN reference it will be necessary to undo the cap gradually and very carefully and top up the fluid in the tank so that it is restored to the MAX level.

The level in the expansion tank should never go below the MIN reference.

Refit the cap on the expansion tank and tighten it.Carry out a further series of accelerations for a period of 10 minutes until the engine speed is about 4500 rpm. Stop the engine.With the engine cold, undo the expansion tank cap and check that the level of the coolant corresponds to the MAX reference and, if necessary, top it up until that level is reached.If the MAX level is exceeded, draw off the excess fluid using a suitable syringe until the correct level is reached.At the end of these operations, make sure that at least the same amount of fluid that was collected when the system was drained has been introduced.

If the coolant fluid boils during the operations described above that should be carried out with the engine started up, the activities should be stopped and the defective component causing the problem should be looked for and replaced if necessary.

Once the circuit has been filled by following the instructions given above, it is absolutely vital not to undo the bleed screws on the radiator and on the heater return hose. Failure to follow this recommendation could upset the balance of the fluid level in the system and result in air entering the circuit once again.

To check the effective filling state of the circuit, proceed as follows.Make sure that the bleed screws on the radiator and on the heater return hose are closed.Check that the level in the expansion tank is at the MAX referenace; if this is not the case, top up with the recommended fluid until this level is reached.Tighten the expansion tank cap fully.Repeat the operations described above starting from "For vehicles with air conditioning make sure that the air conditioning system is not switched on (OFF position)" onwards.