Vehicles after change point in 1982 REMOVING AND INSTALLING 45°C (113°F) TEMPERATURE SWITCH Pull off plug (1). Remove temperature switch. Installation: Tightening torque: max 30 Nm (22 ft.lbs.). Fill and bleed cooling system (Group 17). |  |
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Checking: Connect ohmmeter (m 06) on temperature switch. Ohmmeter should display spproximately 0 ohm for temperature < 30°C (86°F). Ohmmeter should display approximately oo ohms for temperature > 48°C (118°F). |  |
DESCRIPTION: There will be vacuum in hose (4) from partial load on (not at idle speed). A thermo valve switches the vacuum through to the flushing air control valve as from a coolant temperature of 46°C (115°F). With vacuum supply the flushing air control valve switches and the active carbon filter is flushed with fresh air dapending on speed and temperature. ACTIVE CARBON FILTER VENT - HOSE ROUTING AND COMPONENTS 1 = Thermo valve; tightening torque max. 15 Nm (11 ft.lbs.) opens 43 ± 3°C (109 ± 5°F) - opens with rising temperature switching temperature closes 33 ± 3°C (91 ± 5°F) 2 = Flushing air control valve 3 = Hose to active carbon filter 4 = Hose to throttle housing 5 = Check valve Connections on thermo valve must not be mixed up - center connection for throttle housing. |  |
* See Specifications