LOST OF SOUND SYSTEM

2004 Mercedes Benz E320

Tiny

Caljoy

July, 12, 2011 AT 5:05 AM

What cause's message display ( Battery Protection convience functions temporariliy unavailable)

FOUND 2827 RELATED QUESTIONS

3 Answers

Tiny

rivermikerat

July, 12, 2011 AT 5:22 AM

Check the condition of the auxiliary battery first, then check the main if the auxiliary checks good. It's one or the other.

Tiny

Caljoy

July, 12, 2011 AT 5:30 AM

Both batteries have already been replaced

Tiny

rivermikerat

July, 12, 2011 AT 10:54 PM

The message you mention pertains to an issue with the battery system. Using a multi-meter, make sure the alternator is putting out between 13.4 and 14.2 volts with the engine running and headlights turned on. If not, you have an issue with the alternator or regulator.

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