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2005 Audi A4 Sedan 1.8T Technical Specifications 12 Technical Specifications 2005 Audi A4 1.8T Sedan ENGINE: Type Inline 4-cylinder with exhaust gas turbocharger and charge-air intercooling, DOHC Arrangement Front mounted, longitudinal Bore 3.18 in. 81 mm Stroke 3.40 in. 86.4 mm Displacement 109 cu. in. 1781 cc Compression ratio 9.3:1 Fuel requirement Premium unleaded 91 AKI / 95 RON recommended for maximum performance Horsepower (SAE) 170 hp @ 5900 rpm Max. Torque 166 lbs. ft. @ 1950 - 5000 rpm ENGINE DESIGN: Cylinder block Cast iron Crankshaft Forged steel, 4 main bearings Cylinder head Aluminum alloy Valve train / intake Intake camshaft adjustment, DOHC belt driven, hydraulic lifters Firing order 1 - 3 - 4 - 2 Cooling system Water-cooled, thermostatically controlled radiator fan Lubrication system Gear pump, pressurized, full flow with oil cooler Fuel injection / Fully electronic engine management, sequential injection with adaptive idle-charge control, acceleration enrichment, overrun Ignition system fuel cut-off, adaptive lambda control, mapped ignition with solid-state high-voltage distribution via single spark coils, adaptive knock control, air-mass measurement, integrated boost pressure control Emission system Dual 3-way catalytic converters w/individual oxygen sensors ELECTRICAL SYSTEM: Battery 12 volts 80 amp/hr Alternator 14 volts 120 amp DRIVETRAIN: Transmissions Type Front-wheel drive quattro Manual 5-speed multitronic ® Manual 6-speed Automatic 5-speed w/ Tiptronic ® Gear ratios: 1st 3.778:1 2.400:1 3.665:1 2nd 2.176:1 - 1.999:1 3rd 1.429:1 - 1.407:1 4th 1.091:1 - Data not yet available 1.000:1 5th 0.865:1 - 0.742:1 Final Drive 3.700:1 4.778:1 3.091:1 Front Differential Hypoid gear, electronically locking (EDL) Hypoid gear, electronically locking (EDL) Center Differential TORSEN® (TORque SENsing) differential providing automatic and variable front to rear power proportioning Rear Differential Hypoid gear, electronically ...
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