Got a dim alternator light on the 300D Wed evening, naturally while taking a "shortcut" at night out in the country. I'd been cussing the headlights (more likely my aging eyes) because I was having trouble seeing.

Made it, finally, and drove home. Light went completely dark on the highway.

Thursday, on my way out of town on the way home from work, I realized my headlights were VERY dim (didn't show up on the tailgate of the pickup in front of me) as dusk approached, and when the ABS light came on when I touched the brakes, I made a U-turn and headed back into town to the Autozone (this is a small town 35 miles from home) and bought a new battery. The old one was probably OK, just dead, but it wasn't the correct size anyway. Don't like autozone batteries much, but it got me home.

I'd already ordered a new voltage regulator, but didn't pick it up til today, and won't get it in until tomorrow evening -- major "whoops" at work will require my presence tomorrow.

Question is, will the new regulator fix this, or is it likely I also have bad diodes in the alternator?

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!