Once, I pulled the pressure switch. The aux fan didn't come on. It started to get warm in March. I noticed that fan didn't come on when it was at full operating temp. I finally realized the fan was kaput. Luckily, I had replaced the clutch fan earlier. The new fan works when it's at engine operating temperature. I need to pull the connection again to see it turns on. It definitely does not turn on with A/C command.

You don't have push R134 pressures high like I did. It's hot here compared to Canada. The A/C was redone in the last two years. The previous owner had A/C work listed on his ad. The compressor looks new. I wonder if they pulled a fast one on him and didn't notice the fan was not working. I pushed pressures higher and it's holding so far. A 100 degree day is nothing once the fan is running.

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'06 X5 3.0i - bought @143,123 miles (12/26/20)