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#1
09-13-2004, 08:26 PM
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Thermo-Vacuum Valve - 1987 260E
What does the Thermo-Vacuum Valve do?
http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1BL1A690T&year=1987&make=MB&model=260-E-001&category=B&part=Thermo-Vacuum+Valve&appEngines=_any 
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#2
09-13-2004, 09:20 PM
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Either open or close an air passage depending on the temperature of the coolant. In most cases it opens an air passage so a vacuum device is actuated at some preset coolant temperature. The EGR actuation circuit typically has such a valve.
Sixto 95 S420 87 300SDL
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#3
09-13-2004, 10:42 PM
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Charcoal canister purge is also on a thermo switch on the W124.
Peter
__________________
1972 220D ?? miles 1988 300E 200,012 1987 300D Turbo killed 9/25/07, 275,000 miles 1985 Volvo 740 GLE Turobodiesel 218,000 1972 280 SE 4.5 165, 000 - It runs!
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Hybrid Mode
