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2003 E320 Visit workshop battery light

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Old Jul 3, 2024 | 07:40 PM
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2003 E320
2003 E320 Visit workshop battery light

I have a 2003 E320 with 59,000 miles. I replaced the auxiliary battery but the visit workshop light continues to come on as a malfunction. The main battery seems fine. Could anyone please tell me if you have to reset the computer after replacing the auxiliary battery and how? I appreciate any help.

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Old Jul 4, 2024 | 08:13 AM
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I'd measure your battery.. alternator could be on its way out shortly
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Old Jul 10, 2024 | 12:56 PM
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Both batteries are fine, alternator works as it should. Diagnostic computer doesn't show and fault codes. I would think the fault error would reset after driving for awhile but doesn't do that.
Does anyone know if there is a specific way to replace the auxilary battery ? I disconnected the main battery then replaced the auxilary and connected the main battery again.

Still can't figure out why the visit workshop light remains on.
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Old Jul 11, 2024 | 02:32 AM
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Let me translate what everyone are saying. Check the voltage at battery with engine running. And don't tell us it's above 12v as it should.

Last edited by ilove190evo; Jul 11, 2024 at 02:34 AM.
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Old Jul 11, 2024 | 08:37 AM
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We checked the voltage on the battery with the engine running and it showed the alternaor was good.
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