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Old 11-16-2012, 04:24 AM
Codifex Maximus Codifex Maximus is offline
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Join Date: Oct 2009
Location: Texas
Posts: 985
Quote:
Originally Posted by jt20 View Post
I'll take you up on that!

For an '85 W123, I have a battery light always illuminated from start until around 1.5krpm. But at idle the voltage across terminals and from + terminal to ground is steady over 14.2V.

New flux capacitor on the alt. (I forget the name of that thing)

From what I just read, it may be the bulb / socket in the cluster, correct?

The issue has been constant since the speedo cable was replaced and engine install.

Thanks!
If battery light is working and you get 14+VDC across battery, you are usually able to get a charge. If battery light goes out when revving, I'd say you have an imbalance between the two circuits in the alternator. By Flux Capacitor I think you mean Voltage Regulator? If Reg is new then it's either poor, corroded or dirty electrical connections to alternator and/or maybe weak alternator - probably rectifiers.

Do you have an AC component in your DC voltage across the battery?
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1981 240D ChinaBlue (Got her running with a donor engine.)
1983 300DTurbo w/sunroof.
1984 300TD manual sunroof. (Electrical Gremlins)
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