Where is the auxiliary battery on a 2013 s550?
Auxiliary battery under the driver side dash (smallest of the three – fits in the palm of hand.)
Can a battery malfunction on a Mercedes Benz?
Mercedes-Benz Auxiliary Battery Malfunction Explained Mercedes-Benz models are well-known for their impressive technology list, and many of their modern cars have two batteries – the main battery and an auxiliary battery. If this auxiliary battery develops a malfunction, it will show up as an error message on the dashboard.
What does the auxiliary battery do on a Mercedes?
The most common mode links the two batteries together, taking the load off the main systems battery and charging both batteries. The dual battery system also has two shutdown stages as well as an emergency mode that completely switches all functions from the main battery to the auxiliary battery.
Where is auxiliary battery in W213 e220d located?
You will need to remove some nearby plastic mouldings and peel back the carpet to gain access to the battery area, and the fastenings can be undone with a 10mm socket. You should also disconnect the main battery before attempting the work.
Which is the second model of Mercedes battery?
N000000004039 A000000004039 12V 1.2Ah lead-acid battery is second model of the auxiliary battery also known as backup battery used for other mercedes cars such as GL X164 GL450 GL550 GL350 GL320 S-class W220 W221 S320 CL-class W216 CL550 CL600 CL63, R-class W251 R350, ML-class W164 ML250 ML300 ML350 and many other.
When to replace auxiliary battery in Mercedes Benz?
So Mercedes-Benz has incorporated an auxiliary battery to run the extra systems, leaving the main battery topped up and ready to go. Occasionally, these auxiliary batteries in your w212 go bad and need to be replaced. If the battery malfunction message has illuminated on your dash, it’s time to get out the tools and do the replacement yourself.
How do I replace the battery in my Mercedes E-class?
Remove the Phillips screws on the lower dash panel (2), and detach it. With your ratchet and socket, remove one bolt (5) from the panel covering the auxiliary battery (G1/7). Behind the panel, unbolt the bracket (3) holding up the battery. Disconnect the positive and negative leads (6) from the battery.
How does a dual battery system work on a Mercedes?
When the main battery has moderately low voltage, the vehicle computer connects the two batteries, allowing the main battery to return to normal, while charging the auxiliary battery at the same time. Many Mercedes vehicles feature a dual battery system to prevent failures in their combined hydraulic and electric braking systems.
When do auxiliary batteries need to be replaced?
Occasionally, these auxiliary batteries in your w212 go bad and need to be replaced. If the battery malfunction message has illuminated on your dash, it’s time to get out the tools and do the replacement yourself. Step 1 – Should you DIY?