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#1
07-07-2003, 06:34 PM
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heat always on 1973/450sl
Can anyone direct me to the valves that will shut off the heat in the engine comparment. I don't want to spend the summer with the heat blasting if I can shut it off . Any pictures? Thanks
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#2
07-07-2003, 07:07 PM
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Offhand I would expect there to be a brass valve with three hoses connected to it mounted on the firewall on the drivers side but I'm not sure.
__________________
MB 72 250 M130.923 114.011 170k The Beauty
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#3
07-07-2003, 08:59 PM
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Do ypu have climate control with a thumb-wheel or manual temperature control?
__________________
Chuck Taylor Falls Church VA '66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
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#5
07-08-2003, 12:21 PM
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I just repaired my 72 sl with the same problem. Check on the firewall behind the air cleaner, there is a rubber diaphram assembly with a rod that connects to a heater hose going through the firewall. The rubber had dry rotted on the diaphrams. For a temporary fix you can close the valve by hand. I bought a new assembly from MB for $100, I bet Fastlane has it for less.
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#6
07-09-2003, 06:45 PM
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If the location is the same as the 108, the 2 (drivers and pass) are behind the glove box. Pull it out and you'll see them.
__________________
Current: 2021 Charger Scat Pack Widebody "Sinabee" 2018 Durango R/T Previous: 1972 280SE 4.5 2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi" 1999 Chrysler 300M - RIP @ 221k
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#7
07-09-2003, 07:17 PM
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Zeggate, check your thread under the SL forum...I posted some pics.
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Linear Mode
