Standard Ignition Battery Current Sensor P/N:BSC57
Standard Motor Products
Standard Ignition BSC5 sensor for the 2010-2012 Audi A8 Quattro V8 4.2L, the 2012-2013 A8 Quattro W12 6.3L, the 2013 A8 Quattro V6 3.0L or V8 4.0L and other vehicles measures the battery's charge and discharge. It is also sold as a battery current sensor or intelligent battery sensor (IBS).
A failing sensor can show up as a battery or charging warning light or a battery that runs down. A weak battery, a worn alternator or corroded cable ends can be behind these signs too, so find the cause before buying this sensor. If the sensor is the cause, this one replaces it.
This sensor is listed for a wide range of Audi models, including the 2012-2014 Audi A6 4-cylinder 2.0L and the 2013-2017 Audi A6 Quattro 4-cylinder 2.0L or V6 3.0L. It is a direct-fit OE replacement, and each car needs one sensor.
Fit and size
Build and materials
Interchange: 8J0915459 · CTB7 · BCSC20005 · SBC6
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
Is this the right A6 sensor for a 2012-2014 Audi A6 4-cylinder 2.0L?
Yes. The Standard Ignition BSC5 is listed for the 2012-2014 Audi A6 4-cylinder 2.0L. For another year or engine, look in the "Vehicles it fits" section of this page.
What kind of connector does the Standard Ignition BSC5 have?
The Standard Ignition BSC5 has one oval, female plug-in connector and two male bullet terminals.
What does the BSC5 sensor report to the car's computer?
This sensor measures the battery's charge and discharge. That input lets the vehicle computer adjust charging voltage, idle speed and other parameters.
What signs can a failing battery current sensor cause?
A battery or charging warning light, or a battery that keeps running down, can be signs. A shop can test the sensor and the charging system to confirm the cause.
Is 8J0915459 an interchange number for the Standard Ignition BSC5?
Yes. 8J0915459 is on the Interchange line for the Standard Ignition BSC5, so it is listed as a number this sensor replaces.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.