THAT car has an alternator rated at 115A.. Add-up the consumers

The fuel/ignition/traction systens take approx 20A as soon as you start the car..
The light bulbs each take about 5A...times 4....20A
The rear window defroster can take 25A+
The A/C system can take as upto 25A

as you can see you are at the LIMIT for power for that system!

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190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
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