If you get a warning on your Mercedes Benz s-class dashboard stating “Auxiliary battery malfunction,” this is a common problem with many Mercedes vehicles.
Many Mercedes vehicles come with two batteries: the primary and auxiliary battery.
The Auxilary battery functions as a power source and supports the main battery.
It is a secondary battery functioning as a capacitor to store electricity. The stored energy is a source of power for the car’s electrical components, including the start-stop system.
Failure of the Auxilary battery to charge will trigger the warning message you see on your dashboard.
WHAT IS AN AUXILIARY BATTERY MALFUNCTION
You will get an auxiliary batter malfunction warning light on your S-Class when the system reports a battery internal resistance exceeding 0.0 ohms.
Internal resistance is an alternate flow of current in the battery, which may also be affected by the temperature.
When this happens, simply charging your battery may not resolve the issue. You will have to replace it with a new battery.
HOW TO FIX AN AUXILIARY BATTERY MALFUNCTION
A bad auxiliary battery will cause many electrical components to malfunction. We recommend taking your Mercedes Benz s-class to a certified auxiliary battery expert to fix this issue.
At Fremont Foreign Auto repair shop, our expert carries out a visual ins[ection of the Auxiliary battery. Corrosion on the terminal or other physical damages may be the cause of the malfunction of the battery.
Secondly, we save all configurations on the system and disconnect all connections to the battery. If the bad battery remains connected, it may destroy other electrical components.
Thirdly, we thoroughly cleaned all connections, removed the corrosion around the terminal, and installed the new battery.
Finally, we connect all disconnect accessories and electrical components and configure all settling to accept the battery. Also, we clear all save trouble codes on the OBD II system. Once all components are connected, the vehicle undergoes a quality test of the auxiliary battery.
SHOULD YOU DRIVE WITH A BAD AUXILIARY BATTERY?
We do not advise driving your vehicle with any malfunction as it may hurt your car’s performance.
The Auxiliary battery in your Mercedes Benz S-Class does not affect your car’s ability to start. It functions as a power source for many electrical components in your vehicle and will throw disturbing warning lights to get it fixed.
We recommend driving to Fremont Foreign Auto repair shop to fix your vehicle’s auxiliary battery.
VISIT US TO FIX OR REPLACE A BAD AUXILIARY BATTERY
If your Mercedes Benz s-class shows an auxiliary battery malfunction, you should bring your vehicle to our auto repair store to diagnose and fix the problem. A bad Auxiliary battery will not affect the car’s ability to start but may be a sign of more severe problems.
Give us a call at510-793-6067, and we will get you a quote on your Auxiliary battery fix and replacement. We will fix your battery malfunction in no time.