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Q: Low Voltage Turn of consumables on 2003 Mercedes-Benz C320 4MATIC

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Just started having the indicator of Low voltage turn of consumables. Is this a bad battery or alternator?
(1) Answer
Possible bad alternator, however it could have a bad battery also. I'd suggest to do a complete charging system test - it will test the battery also. Get a good quality battery (I like Interstate) because on these cars is very important to have a good, stabile power for the electronics. You can lose expensive computers, electronic devices with an instabile power source.

Zee