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Localization and use of the auxiliary battery of the Mercedes C-Class W205

Model: Mercedes Classe C W205 - Years 2014-2021
Part: Battery

In premium cars such as the Mercedes C-Class W205 version, there is an auxiliary battery that supports the electrical and electronic systems when the main battery is under strain, avoiding overloads or voltage drops. In particular, it powers safety systems such as airbags, emergency braking, or ESP, even if the main battery fails; it keeps infotainment and comfort systems active when the engine is off and supports the start & stop system, ensuring uninterrupted function. Its placement may vary depending on the equipment: it can be located under the passenger seat or, as in this case, in the trunk of the car.

Posted on 21 November 2025 by ScegliAuto

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How to Reset the Tyre Pressure Light on the Opel Grandland X

While driving, if you notice the tyre pressure warning light coming on, first check the actual inflation pressure of the tyres and, if necessary, restore the pressures recommended by the manufacturer. After restoring the correct pressures, you need to reset the warning light that has illuminated on the instrument cluster. To do this, locate the reset button on the lower central console. Press this button and hold it down for at least 3 seconds, after which the low pressure indication will turn off.

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