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#1
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What is this part?
on my 83 240D? There's a sensor and a plug. It's on the water pump housing or near it.
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85 300D turbo pristine w 157k when purchased 167,870 July 2025 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked Last edited by funola; 10-05-2008 at 08:43 PM. |
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#2
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I don't see a pic but I think your talking about the "temp lock out" switch for the AC.
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
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#3
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What's it suppose to lock out? Mine are not connected. Sorry about the pic. I'll try to fix it later.
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85 300D turbo pristine w 157k when purchased 167,870 July 2025 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
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#4
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If the coolant temp is below 40C it will not allow the heater to turn on until the coolant is above 40C.
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
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#5
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Pic should be there now. Are the 2 blue stubs on the sensor for vacuum lines or electrical connections? What about the plug next to it? What else goes there?
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85 300D turbo pristine w 157k when purchased 167,870 July 2025 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
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#6
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thats a thermo vacuum valve for the EGR valve.
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
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#7
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It prevents vacuum from operating the EGR valve when the engine is cold. Some models have an electric thermo switch where the plug is located; it prevents the cabin blower from operating when the "heat" mode is selected and the engine is cold.
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#8
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Quote:
anyone know what would happen if the switch failed? would the heater not go on or would it just start immediately.
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#9
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Depends on whether the switch fails to the open or closed position.
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