No cold air.
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1990 Mercedes-Benz 300SL Question: Hi, where is the low side r12 charge port? Thanks
Answer #1Greg's Orange Auto (13428 Answers) , Orange, CA - (714) 361-9386globalhelper August 23, 2012, 12:35Master
its the smaller of the 2 fitting and its located around compressor area. poss on compressor or low pressure line
Answer #2pushrod August 23, 2012, 16:21Master
May want to take it to a ac shop. Low side fitting larger of the two
look on the larger hose that goes into car.