2004 Audi S4 Avant. ENGINE:. Type. V8-arrangement 8-cylinder with Double ….. 2004 Audi S4 Sedan / Avant. Option Program. 12. Legend. S4. Sedan. S4

Technical Specifications 2004 Audi S4 Avant
ENGINE:
Type V8-arrangement 8-cylinder with Double Overhead Camshafts and two-stage variable intake manifold
Arrangement Front mounted
Bore 3.33 in. 84.5 mm
Stroke 3.65 in. 92.8 mm
Displacement 254 cu. in. 4163 cc
Compression ratio 11.0:1
Fuel requirement Premium unleaded 91 AKI / 95 RON recommended for maximum performance
Horsepower (SAE) 340 hp @ 7000 rpm
Max. Torque 302 lbs. ft. @ 3500 rpm
ENGINE DESIGN:
Cylinder block
Crankshaft
Cylinder head Aluminum alloy
Valve train / intake Intake camshaft adjustment, DOHC belt driven, hydraulic lifters
Firing order
Cooling system Water-cooled, thermostatically controlled radiator fan
Lubrication system Gear pump, pressurized, full flow with oil cooler
Fuel injection / Motronic 7.1.1: fully electronic sequential injection, hot-film air mass measurement, drive-by-wire throttle control, mapped
Ignition system ignition with solid-state high-voltage distribution, cylinder-selective adaptive knock control using four sensors
Emission system Two close-coupled primary and two underfloor main catalytic converters; adaptive lambda control with two heated oxygen
sensors before and two after the converter.
ELECTRICAL SYSTEM:
Battery 12volts 95 amp/hr
Alternator 14 volts 190 amp
DRIVETRAIN:
Transmissions
Type quattro Manual 6-speed Automatic 6-speed

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