The oil light in my 2016 Audi A4 2.0 comes on even with a new sensor

For a start, don’t drive the vehicle any farther or even start the engine. The car is trying to tell you that it has insufficient oil pressure to properly protect the engine, and continuing to run it will quickly destroy it (if it hasn’t already).

There are many reasons for a car to suffer from low oil pressure, including a too-low oil level, the wrong grade or type of oil, a failed oil pump or a blocked oil filter. Even an overheated engine can cause the oil to become too thin for the oil pump to be able to supply the required oil pressure.

It’s also important not to confuse oil pressure with oil level. The amount of oil in the sump can be perfectly correct, but the engine may still lack oil pressure. Have the car towed to a workshop and have the problem properly diagnosed.