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The a/c controller inside sends a signal to a relay module under hood calles the front SAM.
The SAM looks at the pressure/temp switch & then will turn on the compressor. Possibly a stored code in that SAM is keeping the compressor OFF. The mirrors work off of signals from interior computers as well. Most likely you need to have someone connect a scanner designed to scan those computers.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
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