Mercedes-Benz commenced installing auxiliary batteries within the early 2000s. These batteries are lesser than the principle starter battery, from time to time known as capacitors due to their measurement.
The Auxiliary Battery Malfunction warning concept signifies that a thing is wrong Together with the secondary battery system on your own Mercedes-Benz vehicle. These batteries – often often known as a capacitor – are accountable for secondary functions, including managing electrical factors.
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But if you at any time feel Not sure or if the trouble seems larger than expected, it’s entirely all right to ask for Expert aid. Acquire care!
Obtain the auxiliary battery. Based upon its locale, you might want to remove some panels or covers. In the situation of less than-seat places, You could have to slip or tilt the seat for superior accessibility.
Even so, it’s not normally a problem With all the CAN bus itself. In most cases, The difficulty stems from a bad connector or damaged wiring.
Examine the voltage reading through. A wholesome battery need to clearly show about 12 volts. In the event the reading through is drastically decreased, it’s a transparent indication which the battery is failing.
If you see an ‘Auxiliary Battery Malfunction’ information in your Mercedes, you'll be able to frequently repair it you by replacing the auxiliary battery. A real Mercedes auxiliary battery costs all over $160, although an OEM auxiliary battery costs all over $70.
Indeed. The alternator rates both the key and auxiliary batteries once the engine is jogging. You will find a relay with the auxiliary battery that opens and closes the circuit if the auxiliary battery really should be billed via the generator.
The primary battery with your Mercedes motor vehicle is Employed in each individual passenger car. It’s also called the starter battery, system battery or G1. It’s needed to begin the motor, and it offers the principal source of power to the car’s electrical systems.
Continue by disconnecting the unfavorable cable through the battery, permitting a few minutes for it to remain disconnected in advance of reconnecting. And Mercedes Battery See Owners Manual there you may have it! Your auxiliary battery should now be reset and geared up for optimal overall performance.
Make use of your Mercedes assistance manual or a repair manual to walk by way of the right techniques. After you locate the faulty aspect or connection, you may repair it. four. Seek out Assistance from an experienced
For this reason, any battery much more than four many years outdated must be replaced. You are able to perform this endeavor by yourself with a few standard resources. The toughest component is likely to be obtaining The placement from the auxiliary battery.
In the event the auxiliary battery voltage drops drastically, the alternator will end charging it, and you'll get an aux battery warning to the dashboard.