What is the pressure sensor and where is it? Also, the system is not over filled. It was just redone again today with whatever the amount calls for, 2 lbs I think. Are you positive the fan clutch has nothing to do with it? because, now my car doesn't run as hot anymore, but before it ran a little hot even with the ac off? And I know for a fact that the axillary fans did turn on once I turned the ac on.

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1990 190E 3.0L