Spark plugs are quite long-lasting, and they do not require to be changed too often. That said, the typical interval is every 30,000 to 90,000 miles. Each vehicle will have a different replacement schedule.
1999 2000 2001 2002 2003 Audi S6 Spark Plugs
| Info/Engine | 4.2L 8-cyl Engine AYS BBD |
| OEM spark plug gap | 0.032″ (0.81mm) |
| Qty. needed | 8 |
| Change interval | 40,000 miles |
| Best spark plug | NGK 7969 BKR6EKUB Multi-Ground Spark Plug |
| Popular choice | NGK 7092 BKR6EGP G-Power Platinum Spark Plug |
2006 2007 2008 2009 2010 2011 Audi S6 Spark Plugs
| Info/Engine | 5.2L 10-cyl Engine BSM BXA |
| OEM spark plug gap | 0.032″ (0.81mm) |
| Qty. needed | 10 |
| Change interval | 55,000 miles |
| Best spark plug | NGK 5547 PFR6W-TG Laser Platinum Spark Plug |
| Popular choice | E3 E3.64 Spark Plug |
2012 2013 2014 2015 2016 2017 2018 Audi S6 Spark Plugs
| Info/Engine | 4.0L 8-cyl Engine CEUC Turbo | 4.0L 8-cyl Engine CEUC Turbo |
| OEM spark plug gap | 0.028″ (0.71mm) | 0.028″ (0.71mm) |
| Qty. needed | 8 | 8 |
| Change interval | 35,000 miles | 40,000 miles |
| Best spark plug | NGK 91006 SILFER8C7ES Laser Iridium Spark Plug | NGK 91006 SILFER8C7ES Laser Iridium Spark Plug |
| Popular choice | Denso 5346 IKH24 Iridium Power Spark Plug | Champion 9069 KEC6WYPB-1 Iridium Spark Plug |
2019 2020 2021 2022 Audi S6 Spark Plugs
| Info/Engine | 2.9L 6-cyl Engine DKMB Turbo | |
| OEM spark plug gap | – | |
| Qty. needed | 6 | |
| Change interval | – | |
| Best spark plug | – | |
| Popular choice | – |
A higher degree of speed and handling comes into the mix with a high-performance spin-off of the Audi A6 luxury sedan. The torsion-based all-wheel-drive Quattro system is a standard component of all S models. The S6 was initially offered on the C4 platform and is still available today as the C7 platform. The C6 S6 came standard with a 5.2 liter V10 FSI engine that produced 429 horsepower when coupled to a 6-speed ZF Tiptronic automatic transmission.
The Audi S6 C7 is powered by a twin-turbo V8 with a 7-speed quick-shifting S-Tronic dual-clutch gearbox. The engine produces 420 hp and 405 ft-lbs of torque, with cylinder deactivation and a stop-start function that offers better fuel efficiency. A higher horsepower version of the powerplant develops 520 hp as a result of an improved tune, and it has an 8-speed gearbox.
