Thanks Tom,
Does the light glow if the regulator is bad? I will check on my drive tonight. I think I am praying for a bad battery. But I will check the wiring to the headlight, to see if I pinched, pulled, or otherwise caused a short.
It started in the AM, but not after I stopped for breakfast. I will say the lights, radio, and air were still on when I tried the restart. But the 40 miles at 70 mph should have charged the battery even more. I will check and report back tomorrow.
Chuck
--- In
diesel_mercedes@yahoogroups.com, audiolaw@... wrote:
>
> Is the red 'charge' indicator light on the dash binnacle lighting? If
> not, the alternator is charging.
>
> So it sounds as if you must have a drain somewhere. The Sylvania
> super brite bulbs aren't your problem - I run those and they are just
> conventional bulbs. As long as the circuit shuts off, they cause no drain. IF the
> circuit doesn't shut off, they stay lit, so you would see it.
>
> If it is draining while parked, that also doesn't suggest an
> alternator problem.
>
> With the car off, you can pull the fuses. See which one sparks as you
> take it in and out. That indicates a 'hot' circuit (drain on the
> battery). That may help you figure out what's happening.
>
> You may discover that a wire has worn through and is draining the
> battery. Depends on the age of the car and maintenance (which you didn't
> mention). Sometimes these things are obvious. Sometimes they would flummox
> Houdini.
>
> Tom
>
>
>
> In a message dated 5/31/2011 11:29:31 A.M. Pacific Daylight Time,
> jcrcpa@... writes:
>
>
>
>
> I replaced the left front headlight last Thursday, on Saturday the battery
> was dead. Charged and was fine Sunday and Monday. car died in the drive
> thru this am. Jumped it and will probably have to jump it to get home tonight.
> I put in a sylvania super bright twice the price bulb. $19 vs $9 for the
> cheap one.
>
> Anyone think of a reason the new bulb would drain the battery? or just
> coincidence.
> The alternator is a little over a year old.
> The battery is 10 months old.
>
> If the battery checks out ok at wally's, I guess I will take it in and
> have the mech check the alternator.
>
> Chuck
>
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