49,640 Original Miles
Automatic Transmission
4.2L DOHC V8
340 hp @ 7000 RPM*
302 lb/ft torque @ 3500 RPM*
Capable 0-60 MPH: 5.1 seconds
Top Speed: 155 mph
*Base Price in 2004: $45,650
*Seller Asking:
$15,000 obo
Fast Facts:
- The S4’s 40 valve quad-cam 4.2L V8 uses a forged steel crankshaft, forged pistons, and revs to 7,000 RPM. Surprisingly, this engine features a larger stroke (3.65″) than bore (3.33″) – high RPM engines tend to favor the opposite. The longer the engine’s stroke, the faster the piston speed. This in turn increases drag within the engine, since piston movement is responsible for most of the friction in an engine
- Unfortunately, friction and high RPM don’t mix, which is why Audi counters with a bespoke low-friction valvetrain, high lift camshaft, and high flow intake/exhaust manifolds to help the engine feel comfortable at high-RPM. Plus, the increased stroke provides the S4’s excellent thrust at lower RPMs, as well as its exceptionally wide powerband
- What makes Audi’s Quattro 4WD system effective is the torque-sensing (Torsen) center differential that automatically splits power 50/50 between the front and rear axle (up to 75% to one or the other when needed). Both axles use open diffs paired with EDL (Electronic Differential Lock) that can apply brakes to either wheel individually when wheelspin is detected via ABS sensors. This transfers power to the opposite wheel since it has more traction
- The 6spd manual gearbox doesn’t exactly have a 1:1 direct drive, unlike the automatic trans (4th gear). In the manual gearbox, 4th gear is 1.133:1, 5th is 0.919:1, and 6th is 0.778:1. The factory axle ratio is a relatively steep (for a V8) 3.889:1, allowing the S4 to launch hard and feel faster than the performance numbers suggest
Key Model Year Changes:
- First year of the B6 S4
- No notable changes between 2004 and 2005 B6 S4 cars
- The B7 body style took over mid-2005 (commonly referred to as the 2005.5 model)
- The B7 retained the same drivetrain as the B6 with minimal internal differences (same power output). Shocks and springs were revised as well
Seller Notes:
- 49k original miles
- 6spd manual
- Black on Black
- Motor was replaced with brand new factory engine by Audi of Bellevue after the original motor damaged a valve @ 22k miles
- New engine has slightly over 29k miles on it
- Feels like a 2 year old car
- 19”Axis wheels, lowered about 1.25”. Milltek stainless cat back exhaust. Pretty quiet
- Great tires about 80-85%
- CONTACT SELLER – Update: Seller’s Craigslist ad has been deleted (sold or removed from market)
– Click for shipping quote –
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*SAE rated from factory. May not reflect current output.
*Performance numbers pulled from either the factory brochure or reputable automotive road tests.
*Base price when new does not reflect original MSRP of this particular car, nor does it reflect what the original owner paid for it.
*Advertised price at time of posting. Sellers can raise or lower prices on their original ad at any time. Click on the original ad to view current price/availability.
*Performance numbers pulled from either the factory brochure or reputable automotive road tests.
*Base price when new does not reflect original MSRP of this particular car, nor does it reflect what the original owner paid for it.
*Advertised price at time of posting. Sellers can raise or lower prices on their original ad at any time. Click on the original ad to view current price/availability.
Mileage Disclaimer: NOC has not confirmed if the mileage stated by the seller is true and accurate. It is up to the buyer to verify these claims. Vehicle history reports, service records stating mileage, and even inspections of odometer tampering are recommended.
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