Do it yourself
Frequently asked questions about cars and motorcycles
  1. Car
  2. :
  3. Mercedes
  4. :
  5. Classe M
  6. : How to change the auxiliary battery on a Mercedes ML350.

Mercedes Classe M - Video tutorial

Model: Mercedes Classe M W166 - Years 2011-2018
Part: Battery
Operation: How to change the auxiliary battery on a Mercedes ML350.

On high-end vehicles, such as the Mercedes ML, an auxiliary battery is installed to ensure that the services are always available even when there is high electrical demand. Let's see how to change it and where it is located. On our Mercedes ML, the battery is not located in the engine compartment, but under the passenger seat. To access it, we need to push the seat all the way back, remove the floor mat, and lift the plastic covering. Underneath, we will find a compartment with a vent, which we will remove, and a metal plate that held the vent in place. Underneath these, we will find the starter battery. Remember that when working on the battery, you should not have the keys inserted in the dashboard and all electrical request buttons should be in the "off" position for safety reasons. Now, let's remove the negative terminal first, followed by the positive one; remove the battery ventilation. Now, using a 13mm key, remove the bolts that hold the battery in place. This way, we remove the battery clamps and can take it out of its housing. Now, we access the auxiliary battery, which is positioned on the side. Always remove the negative terminal first, followed by the positive one. This battery costs around 40 euros when purchased on major e-commerce platforms. Now, all that's left is to reverse the process to reinstall the auxiliary battery, reposition the starter battery, the plate, the vent, the plastic covering, the floor mat, and put the seat back in place. Job done.


Posted on 7 July 2023 by ScegliAuto



How to replace the auxiliary battery in the Mercedes-Benz ML350 w166?
Mercedes Classe M (2011-2018 / W166) The auxiliary battery of the Mercedes-Benz ML350 w166 is located in the luggage compartment. In case of need to replace it, opening the rear door, we
How to replace the driver's door lock on the Mercedes ML350?
Mercedes Classe M (2005-2011 / W164) In this tutorial, we can see how to replace the driver's door lock on the Mercedes ML350, a very simple and quick operation. First of all, we open th
How to replace the auxiliary battery of the Mercedes ML 350?
Mercedes Classe M (1997-2005 / W163) To be able to replace the auxiliary battery of the Mercedes ML 350, the front passenger seat must be pushed all the way forward. Below it will be a c

Other guides that may interest you

    Frequently Asked Questions

    • Classe M 2005-2011 - Where is the auxiliary battery located in the Mercedes ML 350? Read Answer
    • Classe M 2011-2018 - How much does the auxiliary battery for the Mercedes ML350 W166 cost? Read Answer
    • Classe M 2005-2011 - Where is the battery located in the Mercedes Ml 320 CDI? Read Answer
    • Classe M 2011-2018 - Where is the battery located in the Mercedes M-Class? Read Answer
    • Classe M 2005-2011 - Where is the battery of the Mercedes M-Class W164? Read Answer
    • Classe M 2005-2011 - Where is the battery of the Mercedes ML320? Read Answer
    • Classe M 2011-2018 - Where is the auxiliary battery of the Mercedes M-Class located? Read Answer
    • Classe M 1997-2005 - How long does the battery last in the Mercedes M-Class? Read Answer
    • Classe M 2005-2011 - Where is the battery of the Mercedes ML W164? Read Answer

How to set the clock on the Yamaha Xmax 300

To change the time of the Yamaha Xmax 300, keep the "trip" button pressed, at the same time turn the ignition to "on"; release the "trip" button when the time starts flashing; briefly press the "trip" button to set the time; press and hold for a few seconds to confirm and move on to the minutes; briefly press the same button to set the minutes; we long press the same "trip" button to confirm; at this point in the meantime that we hold down the minutes stop flashing the time has been saved correctly and we can turn off the instrument panel.

Watch the video!


by ScegliAuto

More videos