1

Open the radiator cap   on the expansion tank.

2

Remove the bottom attachment screw (1) (with sealing ring (2) ) of water   pump (3).

3

Drain the engine   coolant.

NOTE

If the radiator is located below the engine, also detach the lowest positioned coolant hose.

4

Fit attachment screw (stainless steel) along with a new sealing ring. Tighten to 10 Nm (89 in.lb).

5

If the coolant is being   replaced with a different type, (OAT, IAT) the cooling system must be   flushed. See chapter 12-20-00 section Flushing the cooling system.

6

Refill newly mixed coolant into the expansion tank (highest point of the cool- ing system). See chapter 12-10-00 section Coolant check/replenish.

7

Fit   radiator cap.

8

NOTE

Run the engine briefly and replenish with clean coolant as required.