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Replacing the battery in the remote control key
The battery in the remote control key needs to be replaced when it has become discharged.
Overloading the starter battery
The electrical functions in the car load the starter battery to varying degrees. Avoid using the ignition position II when the car is switched off. Instead, use ignition position I - which uses less power.
A used starter battery or support battery should be recycled in an environmentally sound manner – it contains lead.
Symbols on the batteries
There are information and warning symbols on the batteries.
The electrical system is single-pole and uses the chassis and engine casing as a conductor.The starter battery is used to start up the electrical system and drive the starter motor as well as other electrical equipment in the car.The starter battery should be replaced by a workshop.
Cars with the Start/stop function are equipped with two 12 V batteries - one extra powerful starter battery for starting and one support battery that helps during the function's starting sequence.