Contents - Volkspage
Contents - Volkspage
Contents - Volkspage
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Chapter 3<br />
Cooling, heating and ventilation systems<br />
<strong>Contents</strong><br />
Coolant pump - removal, inspection and refitting ............... .7 General information and precautions ......................... .1<br />
Coolant renewal ............................... .See Chapter 1 Heater/ventilation components - removal and refitting ........... .9<br />
Cooling system electrical switches - testing, removal and refitting .. .6 Heating and ventilation system - general information ............ .8<br />
Cooling system hoses - disconnection and renewal ............. .2 Radiator - removal, inspection and refitting .................... .3<br />
Electric cooling fan - testing, removal and refitting .............. .5 Thermostat - removal, testing and refitting .................... .4<br />
Degrees of difficulty<br />
Specifications<br />
General<br />
Expansion tank cap opening pressure . . . . . . . . . . . . . . . .<br />
1.2 to 1.5 bars<br />
Thermostat<br />
Opening temperatures:<br />
Starts to open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87°C<br />
Fully open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102°C<br />
Fully open stroke (minimum) . . . . . . . . . . . . . . . . . . . . . . . 7.0 mm<br />
Electric cooling fan thermoswitch<br />
Operating temperatures:<br />
Single-stage switch<br />
switcheson...........................................<br />
Switchesoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Two-stage switch<br />
Stage 1 speed:<br />
Switches on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Switchesoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
93” to 98°C<br />
88” to 93°C<br />
92” to 97°C<br />
84” to 91 °C<br />
Stage 2 speed:<br />
Switcheson ., . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99° to 105°C<br />
Switchesoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91° to 98°C<br />
Torque wrench settings<br />
Nm<br />
Ibf ft<br />
Radiator mounting bolts ................................... 10 7<br />
Thermostat cover bolts .................................... 10 7<br />
Thermostat housing bolts .................................. 20 15<br />
Cooling fan retaining nuts .................................. 10 7<br />
Cooling fan cowling bolts .................................. 10 7<br />
Cooling fan thermostatic switch ............................. 25 18<br />
Coolant pump.. ......................................... 10 7<br />
3
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