All about Ford Mondeo

Cooling system hoses - disconnection and renewal
Cooling, heating, and air conditioning systems / Cooling system hoses - disconnection and renewal

Note: Refer to the warnings given in Section 1 of this Chapter before starting work.

1 If the checks described in Chapter 1 reveal a faulty hose, it must be renewed as follows (see illustration).

3.1 Cooling system components
3.1 Cooling system components

1 Radiator
2 (Twin) electric cooling fan and shroud 3 Expansion tank
4 Filler/pressure cap
5 Bolt
6 (Single) electric cooling fan and shroud 7 Bolt
8 Coolant pipe
9 Nut
10 Top mounting rubber
11 Bottom mounting rubber 12 Bolt
13 Radiator mounting bracket 14 Coolant hose
15 Bolt
16 Radiator top hose
17 Coolant pipe/hose
18 Stud
19 Thermostat housing
20 Radiator bottom hose

2 First drain the cooling system (see Chapter 1); if the antifreeze is not due for renewal, the drained coolant may be re-used, if it is collected in a clean container.

3 To disconnect any hose, use a pair of pliers to release the spring clamps (or a screwdriver to slacken screw-type clamps), then move them along the hose clear of the union.

Carefully work the hose off its stubs. The hoses can be removed with relative ease when new - on an older car, they may have stuck.

4 If a hose proves stubborn, try to release it by rotating it on its unions before attempting to work it off. Gently prise the end of the hose with a blunt instrument (such as a flat-bladed screwdriver), but do not apply too much force, and take care not to damage the pipe stubs or hoses. Note in particular that the radiator hose unions are fragile; do not use excessive force when attempting to remove the hoses. If all else fails, cut the hose with a sharp knife, then slit it so that it can be peeled off in two pieces.

While expensive, this is preferable to buying a new radiator. Check first, however, that a new hose is readily available.

5 When refitting a hose, first slide the clamps onto the hose, then work the hose onto its unions. If the hose is stiff, use soap (or washing-up liquid) as a lubricant, or soften it by soaking it in boiling water, but take care to prevent scalding.

6 Work each hose end fully onto its union, then check that the hose is settled correctly and is properly routed. Slide each clip along the hose until it is behind the union flared end, before tightening it securely.

7 Refill the system with coolant (see Chapter 1).

8 Check carefully for leaks as soon as possible after disturbing any part of the cooling system.

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