You might be onto something: https://i.imgur.com/5bWqw4f.png
Bosch 13439 Oxygen Sensor: https://www.amazon.com/Bosch-13439-Original-Equipment-Volkswagen/dp/B000BZG6M0
Bosch ABS 37555 Brake Pads: https://www.amazon.com/ABS-37555-Brake-Pads-04862602AA/dp/B00C66X8BE