Hello,

I have a 1985 300D KaliKar that has what I would call a marginal A/C system. On a cooler day (< 80), if the A/C is turned on you can just tell that drying and a small amount of cooling of the air from the vents are happening.

On my car, with the engine cold, when you start the car and turn the A/C to full, the aux fan does not come on. Is the aux fan supposed to come on whenever the A/C system is on?

This system is still R12.

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Mike Frederick
1986 300SDL, 240K+ miles
1985 300D KaliKar, 270K+ miles