The 1986-89 W124 chassis 300E's use the same alternator as the 190E 2.3. JUST not enough amps to power the car esp in the summer with A/C running all of the time.
On the 1990-92 cars they changed to an 80A alternator & all of those charging problems went away.
Somewhat simple to convert to from the early 65-70A alternator.
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)