on my 88 124 can i replace ac temp switch,on the reciever drier, with out removing freon. the car still has the green switch and want to put the red one on. this is to turn on aux. fan on at a lower temp? while doing a search a few weeks ago i read something about a 123 that said this could be done. sounded kind of odd as i would think the freon is right behind the switch. why else would there be a green o-ring on the switch.
do these switches leak internally? or does just the o-ring leak?
i ask because i have a used one.
the squeak you hear is me thinking of spending money.
its kind of a dumb question,but hate to mess with the r-12 when it still works.
thanks
rich

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88 300E White, sold 9-04
88 190E Black 2.3 sold
90 300CE White, Grey sold 12-24-04
92 400E White,Grey Sold 5-06
90 300CE 91K Signal Red,Black Sold 2007
1989 300CE Smoke silver,Tan Sold 1-08
1993 300E 3.2 M104 motor
1991 300CE White,Grey
1994 E420 beautiful car,gone to new home
1994 E320 Smoke an Parchment.Beautiful car