Of course try replacing fuse # 5 as it powers the A/C control unit.
There is an OVER HEATING switch imput into the A/C compressor that also can keep the compressor from comming on. TRY unplugging the Green(OR red) 3 pole sensor at the front of the engine & then see if the compressor comes on.
MERCEDES Benz Master Guild Technician (6 TIMES)
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190E 2.3 16V ITS SCCA race car (sold)
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