2. Drain the cooling system as described in Chapter 1. Save the fluid if it is suitable for further use. If the hose clamps are corroded, drop a small amount of well-penetrating oil on the clamp.
3. Loosen the hose clamp. There are three types of clamps used: worm type, spring type and "can" type (like in a sardine can). Worm clamps are loosened by turning the screw counterclockwise. Spring clamps are loosened by squeezing the tabs with pliers, while simultaneously sliding the clamp off the end of the hose. "Can" clamps are not used multiple times and are best cut with nippers or metal shears.
4. Unclip any wires, cables or other hoses that may be attached to the hose to be removed. If necessary, mark them so that they can be reinstalled correctly.
5. Remove the hose from the end using a twisting motion. Be careful not to damage the ends on fragile parts such as the radiator or thermostat housing. If the hose is tightly fitted to the end, it is best to cut it off with a sharp knife. However, be careful not to damage the ends.
6. Before installing a new hose, to make installation easier, lubricate the ends with a soap solution or suitable rubber lubricant. Do not use oil or grease, which may attack the rubber.
7. Install clamps on the ends of the hose, then put the hoses on the nozzles. Install the hoses in place and tighten the clamps.
8. Fill the cooling system as described in Chapter 1. Start the engine and check for leaks.
9. After several hundred kilometers, check the tightness of the hoses.
10. If necessary, add coolant (see "Weekly check").