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Old 01-08-2013, 07:10 PM   #13
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Join Date: Oct 2006
Posts: 33,142
An E46 alternator shouldn't be troubled by turning on all the accessories, nor charging the battery after starting the car(the jump to 14.0 volts should take less than a second). The battery looks relatively healthy by the voltage it provides without the engine running, but the varying alternator output seems off. I'd look into fixing the alternator and getting a solid 14.0 volts before looking into the rest, since everything else mentioned will be negatively affected by a reduced output alternator.

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