Audi Audi RS4 2012-2015

Audi Audi RS4 2012-2015 4.2L Engine Specifications

Detailed technical specifications for the 4.2L V8 FSI engine in the 2012-2015 Audi RS4. Includes engine performance, component details, and technical data for service and maintenance.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the 4.2l-engine specifications for the 2012-2015 Audi RS4, including key features, measurements, and technical details

How to Use

Use the search function to locate specific 4.2l-engine specifications by entering keywords such as 'torque', 'horsepower', or 'compression ratio'.

Navigate through the documentation sections using the table of contents or by scrolling through the major sections and subsections listed below.

Key Specifications

Displacement

4.2 liters (4,163 cc)

Horsepower

450 hp (331 kW) at 8,250 rpm

Torque

430 Nm (317 lb-ft) at 4,000-6,000 rpm

Compression Ratio

12.5:1

Fuel System

Direct injection (FSI)

Available Specifications

Engine Design and Architecture

Detailed information about the design, layout, and architecture of the 4.2l V8 engine used in the Audi RS4.

Engine Configuration

Naturally aspirated 4.2-liter V8 engine
90-degree cylinder bank angle
Aluminum alloy block and cylinder heads
Double overhead camshaft (DOHC) design
32-valve configuration (4 valves per cylinder)

Combustion System

Direct fuel injection system (FSI)
Compression ratio: 12.5:1
Bore: 84.5 mm
Stroke: 92.8 mm
Maximum engine speed: 8,250 rpm

Note: The high compression ratio and direct injection system optimize fuel efficiency and power output.

Performance Specifications

Technical details about the engine's performance, including power output, torque, and acceleration.

Power and Torque

Maximum power output: 450 hp (331 kW) at 8,250 rpm
Peak torque: 430 Nm (317 lb-ft) at 4,000-6,000 rpm
Power-to-weight ratio: 4.4 kg/hp
0-100 km/h (0-62 mph) acceleration: 4.7 seconds
Top speed: 280 km/h (174 mph) (electronically limited)

Fuel Efficiency

Combined fuel consumption: 10.7 L/100 km (22 mpg)
CO2 emissions: 249 g/km
Fuel tank capacity: 61 liters (16.1 gallons)
Recommended fuel: Premium unleaded (98 RON)

Note: Fuel efficiency may vary based on driving conditions and style.

Cooling and Lubrication Systems

Details about the engine's cooling and lubrication systems, including component specifications and maintenance requirements.

Cooling System

Liquid-cooled with an aluminum radiator
Coolant capacity: 12.5 liters (3.3 gallons)
Thermostat opening temperature: 87°C (189°F)
Electric cooling fan with variable speed control

Lubrication System

Wet sump lubrication system
Oil capacity: 9.3 liters (9.8 quarts)
Recommended oil grade: SAE 5W-40
Oil change interval: 15,000 km (9,320 miles) or annually

Note: Use only Audi-approved synthetic oil for optimal performance.

Exhaust and Emissions

Information about the exhaust system, emissions control, and compliance with environmental standards.

Exhaust System

Dual exhaust system with stainless steel mufflers
Exhaust gas recirculation (EGR) system
Catalytic converters integrated into the exhaust manifolds
Exhaust valve diameter: 34 mm

Emissions Compliance

Complies with Euro 5 emissions standards
Equipped with an oxygen sensor (lambda probe)
Particulate filter: Not required for gasoline engines
NOx emissions: 0.18 g/km

Note: Regular maintenance of the exhaust system is essential for emissions compliance.

Search Specifications

Search by specification name, value, or description

Engine Specifications

General

Engine Code: BHK/BWE

Displacement: 4.2L (4163 cc)

Configuration: V8

Cylinder Bore: 84.5 mm

Piston Stroke: 92.8 mm

Compression Ratio: 12.5:1

Engine Orientation: Longitudinal

Performance

Max Power: 450 hp @ 8250 rpm

Max Torque: 430 Nm @ 4000-6000 rpm

Redline: 8250 rpm

Fuel Type: Premium unleaded (98 RON)

Fuel System: Direct injection (FSI)

Dimensions And Weight

Engine Length: 520 mm

Engine Width: 680 mm

Engine Height: 620 mm

Dry Weight: 220 kg

Oil Capacity: 9.3 L

Cooling System

Coolant Capacity: 12.5 L

Thermostat Opening Temperature: 87°C

Radiator Type: Aluminum cross-flow

Coolant Mixture: 50% water, 50% G12++ coolant

Lubrication System

Oil Pressure: 3.5-4.5 bar @ 2000 rpm

Oil Type: VW 502 00 / 504 00

Oil Filter Part Number: 06E115561B

Oil Change interval: 15,000 km or 12 months

Ignition System

Spark Plug Type: NGK PFR7S8EG

Spark Plug Gap: 0.8 mm

Ignition Coil Part Number: 06E905115E

Ignition Timing: Adjustable via ECU

Valvetrain

Valve Configuration: DOHC, 4 valves per cylinder

intake Valve Diameter: 37.0 mm

Exhaust Valve Diameter: 31.0 mm

Valve Clearance: Hydraulic, self-adjusting

Fuel System

Fuel Pump Pressure: 5.0 bar

injector Part Number: 06E906036C

Fuel Rail Pressure: 40-120 bar

High-Pressure Pump Part Number: 06E127025K

Exhaust System

Exhaust Manifold Material: Stainless steel

Catalytic Converter Type: Two-stage, close-coupled

Exhaust Pipe Diameter: 70 mm

Emission Standard: EU5

Maintenance

Timing Chain Replacement Interval: Inspect every 100,000 km

Belt Drive: None (chain-driven)

Service interval: 15,000 km or 12 months

Air Filter Part Number: 06E129620A

Cabin Filter Part Number: 4H0819439

Diagnostics

Obd Ii Compliance: Yes

Common Fault Codes

P0300
P0171
P0420

Diagnostic Tool: VAS 5054A or equivalent

Ecu Part Number: 8T0907115B

Service Information Service

Detailed service requirements and schedules for the 4.2L engine

15,000 km

Oil and filter change
Inspect timing chain tensioner
Check coolant level and mixture
Inspect spark plugs

Use only VW 502 00 / 504 00 approved oil

30,000 km

Replace air filter
Replace cabin filter
Inspect fuel system for leaks
Check exhaust system for damage

Inspect high-pressure fuel pump for wear

60,000 km

Replace spark plugs
Inspect ignition coils
Check valve clearance
Inspect cooling system hoses

Replace coolant if necessary

100,000 km

Inspect timing chain and guides
Replace fuel filter
Check engine mounts
Inspect exhaust system for corrosion

Perform compression test if necessary

Common Questions

Find answers to common questions about torque specifications

What is the horsepower and torque output of the 4.2L FSI engine in the 2012-2015 Audi RS4?

The 4.2L FSI V8 engine in the 2012-2015 Audi RS4 produces 450 horsepower at 8,250 rpm and 317 lb-ft of torque at 4,000-6,000 rpm. This high-revving engine is designed for performance and responsiveness.

What is the recommended oil type and capacity for the 4.2L FSI engine?

Audi recommends using fully synthetic oil meeting VW 502 00 or 504 00 specifications. The oil capacity is approximately 9.3 liters (9.8 quarts) with a filter change. Always refer to the owner's manual for the exact specifications.

What is the redline for the 4.2L FSI engine in the RS4?

The redline for the 4.2L FSI engine is 8,250 rpm. This engine is designed to operate efficiently at high RPMs, delivering peak performance in the upper rev range.

What type of fuel is recommended for the 4.2L FSI engine?

Audi recommends using premium unleaded gasoline with an octane rating of 91 or higher for optimal performance and efficiency. Using lower-octane fuel may result in reduced performance and potential engine knocking.

What is the service interval for the timing chain on the 4.2L FSI engine?

The timing chain on the 4.2L FSI engine is designed to last the lifetime of the engine under normal operating conditions. However, regular inspections are recommended during routine maintenance to ensure proper tension and alignment.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Audi RS4 4.2L FSI Engine Technical Specifications

Coming Soon

Detailed technical specifications for the 4.2L FSI engine, including performance metrics, dimensions, and component details.

Audi RS4 Maintenance Schedule

Coming Soon

Official maintenance schedule for the 2012-2015 Audi RS4, including service intervals and recommended procedures.

Audi Genuine Parts Catalog

Coming Soon

Access the official catalog for genuine Audi parts, including engine components, filters, and fluids for the 4.2L FSI engine.

Audi RS4 Owner's Manual

Coming Soon

Download the official owner's manual for the 2012-2015 Audi RS4, containing detailed information on operation, maintenance, and troubleshooting.

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Technical Information

All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
Vehicle specifications and procedures may vary by model year, trim level, and region.
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