I have a 1990 300CE-104 motor.
At night, when I first turn on the car, the lights get dim and bright like a cycle.
It gets less noticeable when I drive it for a while.
I checked the belt tension which is good, battery is new and the alternator is
like 8 months old. I bought the rebuilt Bosch alternator from Pep Boys.
They checked out to make sure that it is not a bad alternator or battery.
Any ideas?
Thanks
Barry