The knock sensor 077 905 377 D detects engine knocking. It is suitable for the Audi A8 D3 (2002–2010), A3 8P1 (2003–2012), A6 C6 (2004–2011), and Volkswagen Phaeton (2002–2016).
- Type: Knock sensor
- Compatibility: Audi A8 D3 (2002–2010), Audi A3 8P1 (2003–2012), Audi A6 C6 (2004–2011), Volkswagen Phaeton (2002–2016)
- Model code: 077 905 377 D