What Does It Mean When My Mercedes Says Auxiliary Battery Malfunction

What Does It Mean When My Mercedes Says Auxiliary Battery Malfunction?

The appearance of the "Auxiliary Battery Malfunction" message simply means:"Go get your Mercedes auxiliary battery checked - it's probably dying".

What’s an auxiliary battery, you asked?

Well, that’s what we will discuss next.

A Short Note On

a nutshell, an auxiliary battery is a backup for the main battery.

In

It essentially powers the following parts:Radio Blind spot assist Lane keep assist GPS PDC

Let's move on to the reasons why the "Auxiliary Battery Malfunction" message may appear.

most common reason the “Auxiliary Battery Malfunction” message will appear:“is due to a weak or dying auxiliary battery”.

The

So, check the auxiliary battery soon after you see an error message like this.

This may also activate the “Auxiliary Battery Malfunction” message in Mercedes.

Also, a faulty voltage regulator can damage the main battery.

So, make sure that the voltage regulator of your Mercedes is in good working order.

It’s the primary battery that supplies electricity to:The ignition system Starter motor And, other crucial electrical appliances

And, yes… If it goes bad, your Mercedes will display “Auxiliary Battery Malfunction”.

Short circuits can cause irreversible damage to a car’s electrical system.

If your Mercedes has an electric short circuit, it may show an "Auxiliary Battery Malfunction" message.

If your Mercedes displays an "Auxiliary Battery Malfunction" message, don't look away.

Find out what triggered an error message like this.

BAY DIAGNOSTIC https://www.baydiagnostic.com/ /BayDiagnostic/

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