I charged it to spec last year, so I don't think it could be overcharged now. The fans are working fine. When the a/c works, it works well. Temperatures are 40-44 F at the vents. This only happens occasionally and it is always when it is very hot and the car is driven, parked, and restarted. The belt seems okay, but the tensioner may be wearing due to the high mileage. There are no unusual noises when revving or accelerating.

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1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles