2004 Audi S4 6-Speed

The car is powered by a 4.2-liter DOHC V8 that drives all four wheels through a six-speed manual transaxle and a Quattro all-wheel-drive system with a Torsen center differential, and it is finished in Brilliant Red over Black Silk Nappa leather. Equipment includes a sunroof, a sport suspension, heated power-adjustable Recaro front seats, rear sunshades, a Bose sound system, an Audi Symphony CD/cassette stereo, cruise control, and dual-zone automatic climate control.

The S4 was differentiated from the standard A4 with body-color door blades, restyled bumper covers and grilles, and aluminum mirror housings. The sedan bodywork of this example is finished in Brilliant Red (LY3J) and is equipped with a sunroof, fog lights, and dual exhaust outlets. Scraping on the underside of the bumper covers and corrosion at the body seams is viewable in the gallery below.

The 18″ Avus alloy wheels are mounted with Westlake tires. The B6 S4 was equipped from the factory with Servotronic speed-sensitive steering, a sport-tuned suspension 20mm lower than the standard A4, 345mm vented front discs with four-piston calipers up front, and 300mm vented rear discs. Audi claimed the B6 chassis was 60% stiffer than the outgoing B5 model. The brake fluid was flushed in April 2025. The front passenger center cap is missing and there is curb rash on the wheels.

The heated power-adjustable Recaro front seats and individual rear seats are upholstered in black Silk Nappa leather and are complemented by wood trim on the dashboard, door panels, and center console. Interior appointments include a Bose sound system, an Audi Symphony CD/cassette stereo, cruise control, and dual-zone automatic climate control. Wear on the central controls is shown in the gallery below, and the glovebox is missing a hinge. An an air conditioning service in February 2023 included replacing the seals, Schrader valves, and the high-pressure switch.

The leather-wrapped steering wheel fronts a 170-mph speedometer, an 8k-rpm tachometer, auxiliary gauges for coolant temperature and fuel level, and a central digital display. The digital odometer indicates 75k miles, approximately 72k of which were added under current ownership.