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Dawnell Sechler

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Aug 2, 2024, 11:43:27 PM8/2/24

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According to Mercedes-Benz, the main battery, usually found in the trunk, supplies the onboard electrical system in regular operation. While the secondary (auxiliary battery is a short-time backup for the power supply in the event of the onboard system battery failing. E Class W211, CLS Class, for example, has two batteries.

The YOUCANIC scanner can also perform diagnostic tests on various systems, including the ABS, airbag, and steering systems, to help pinpoint the root cause of any issues. With this information, you can make more informed decisions about repairs and maintenance, saving time and money on costly repairs.

My 2002 Mercedes c 180 w203 Petrol was showing battery visit workshop. This got me worried, I bought a new battery and this did not fix the issue. I call an electrician to check the alternator, change the cutout and check the brush if they were okay. Just to notice that the CUT-OUT was faulty after replacing it the problem is now solved.

I have a 2003 e320 i once had the red battery sign fixed it by putting a new alternator worked fine with no red battery sign for 2 weeks then again the same red battery problem? I have a new main battery nd a new alternator. Idk if i could have a draining problem or something is hurting my alternator because it was fine for 2 weeks only till the same problem came again.

We have a 2011 ML350 4Matic. Car would sometimes start and sometimes not. Had a new alternator installed. Next day the car would not start. Had new battery installed. Started, no problem. Few hours later, would not turn over at all. After several attempts, car would finally turn over. Happened 3 or 4 times during the day. No warning lights or messages come on. What could be the problem?