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Old 11-12-2008, 01:23 PM
300sdToronto 300sdToronto is offline
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Join Date: Mar 2006
Posts: 545
1982 380SL battery run-down

I just experienced a partially discharged battery on my 380SL (10.5V with the headlights on, insufficient power to turn engine over on a cold morning) and I suspect the alternator is on its way out and charging insufficiently. Battery is less than one year old but I will have it tested. Alernator has 109K miles and a prime candidate for retirement.

Just to set my mind at rest - please can anyone confirm that there is nothing drawing battery power on these cars except the clock when everything is switched off?? They are way too simple, surely for any electronics in permanent standby mode.

So if I put an ammeter on the battery and see a current of more than a few mA then I assume I have a short somewhere??
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