Keep your vehicle's smart charging and start-stop electronics reading the battery accurately with the Standard Ignition Intelligent Battery Sensor (IBS), part number BSC101. It installs as a direct-fit replacement for the listed applications, including the 2017-2020 Audi A3, 2017-2020 Audi A3 Quattro, 2017-2020 Audi S3 and 2019-2023 Volkswagen Arteon — see the Buyer's Guide tab for the full list of covered Volkswagen and Audi models.
A battery current sensor measures the battery's operating values and reports them to the vehicle's energy-management and charging control, giving those systems the state-of-charge information they use to regulate the alternator and manage functions such as start-stop.
- Battery monitoring: reads the battery's current, voltage and temperature and communicates that data to the control module.
- Charging-system input: designed to provide the state-of-charge signal used by smart-charging and start-stop strategies.
- Terminal-integrated design: the sensor is typically built into the negative battery cable connection.
Signs an intelligent battery sensor may need replacing include charging or battery warning messages, a start-stop function that stops working, or erratic charging behavior. These symptoms can have other causes, so diagnose the fault first; if the original sensor is confirmed faulty, this BSC101 replaces it.
Interchange: 5Q0915181J · CTB103 · BCSC20003 · SBC102. Manufacturer part number BSC101.
This part cross-references / interchanges with the following part numbers:
5Q0915181J, CTB103, BCSC20003, SBC102, BSC101
