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#1
07-31-2011, 11:33 AM
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location of ac components please
trying to get the a/c working on my '82 300sd. No power to compressor, fuse good, system charged, jumped pressure switch. Need to check the following two components but don'y know where they are.
evaporator temperature regulator ac compressor relay
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1982 300sd, new project car to restore It doesn't matter if you know what you're doing, as long as you look like you know what you're doing. 
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#2
07-31-2011, 11:38 AM
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I'd check the freeze switch... it may be the evaporator temp regulator... it's under the dashboard driver's side center.
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#3
07-31-2011, 12:03 PM
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where exactly?
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1982 300sd, new project car to restore It doesn't matter if you know what you're doing, as long as you look like you know what you're doing.
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#4
07-31-2011, 12:23 PM
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just pull the panels and look. it's the only connector with screws holding wires... I'll go look at mine, the panels are still off...
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#5
07-31-2011, 12:25 PM
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oops, not screws. 1/4" spade connectors.
it's below the vacuum pod, and beside the txv tube...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#6
07-31-2011, 03:11 PM
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Ok thanks, I'll take a look. Anyone know which relay is for the a/c? The wiring diagram says it is in the fuse box but the label on the cover does not show which one it is.
Just for informational purposes, the order of components is (control side) fuse - pushbutton control assy - freeze up switch, relay, ground (controlled side) Fuse, relay, low pressure cutout switch, compressor, ground.
__________________
1982 300sd, new project car to restore It doesn't matter if you know what you're doing, as long as you look like you know what you're doing.
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#7
07-31-2011, 08:45 PM
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jumped the freeze up switch, a/c works, sort of. next thread now...
__________________
1982 300sd, new project car to restore It doesn't matter if you know what you're doing, as long as you look like you know what you're doing.
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