Audi Audi A8 2002-2010 4.2l-engine Specifications
Detailed technical specifications and documentation for the 4.2L V8 engine in the 2002-2010 Audi A8. Includes performance data, system details, and maintenance guidelines.
4.2L Engine Specifications Specifications
This document provides detailed specifications, key features, and technical details of the 4.2L engine used in the 2002-2010 Audi A8. It serves as a comprehensive reference for technicians, enthusiasts, and owners seeking in-depth information. The guide is organized into sections for easy navigation, covering performance, engine design, fuel system, emissions, and maintenance.
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Key Specifications
Horsepower
335 hp
Torque
317 lb-ft
Displacement
4.2 liters
Fuel Economy (Combined)
16 MPG
0-60 mph
6.3 seconds
Available Specifications
Performance
The 4.2L engine delivers exceptional power and smoothness, ideal for the luxury driving experience. Paired with a responsive transmission, it ensures dynamic performance.
Performance
The 4.2L engine delivers exceptional power and smoothness, ideal for the luxury driving experience. Paired with a responsive transmission, it ensures dynamic performance.
Horsepower and Torque
- 335 horsepower at 6,500 rpm
- 317 lb-ft torque at 3,500 rpm
Acceleration
- 0-60 mph in 6.3 seconds
Power Delivery
- Smooth and responsive across the RPM range
- Optimized for both city and highway driving
Engine Design
The 4.2L V8 engine is known for its efficiency and power, featuring advanced materials and technology.
Engine Design
The 4.2L V8 engine is known for its efficiency and power, featuring advanced materials and technology.
Engine Configuration
- 4.2-liter V8 engine
- Aluminum alloy construction
- Cylinder block with cast-in iron liners
Valve Train
- 4 valves per cylinder
- Double overhead camshafts (DOHC)
Fuel System
The engine utilizes a sophisticated fuel injection system for optimal performance and efficiency.
Fuel System
The engine utilizes a sophisticated fuel injection system for optimal performance and efficiency.
Fuel Injection
- Direct fuel injection system
- High-pressure fuel pump
Fuel Capacity
- 23.8 gallon fuel tank
- Premium unleaded fuel recommended
Emissions and Economy
The engine meets emissions standards while offering competitive fuel economy for its class.
Emissions and Economy
The engine meets emissions standards while offering competitive fuel economy for its class.
Emissions
- Meets LEV (Low Emission Vehicle) standards
Fuel Economy
- 13 MPG city
- 20 MPG highway
- 16 MPG combined
Emissions Control
- Catalytic converter
- Oxygen sensors
- Secondary air injection
Maintenance
Regular maintenance is crucial for optimal performance and longevity of the engine.
Maintenance
Regular maintenance is crucial for optimal performance and longevity of the engine.
Service Intervals
- Oil change every 5,000 miles
- Inspection every 12,000 miles
Fluids and Capacities
- 6 quarts of synthetic oil
- Phosphate-free coolant recommended
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Engine Specifications
Overview
- Type
- V8
- Configuration
- 90-degree V8
- Platform
- Audi A8 (D3)
- Material
- Aluminum alloy
- Location
- Front longitudinal
Dimensions
- Engine Length
- 212 mm (8.35 in)
- Engine Width
- 258 mm (10.16 in)
- Engine Height
- 624 mm (24.57 in)
- Dry Weight
- 190 kg (419 lbs)
- Displacement
- 4.2 liters (4172 cc)
- Cylinder Bore
- 84.5 mm (3.33 in)
Materials
- Engine Block
- Aluminum alloy
- Cylinder Head
- Aluminum alloy
- Crankshaft
- Forged steel
- Valvetrain
- Stainless steel
- Cooling System
- Aluminum
Features
- Fuel System
-
- Multi-point fuel injection
- Returnless fuel system
- Fuel pressure regulator
- Electronic throttle control
- Emission Control
-
- Catalytic converters (2)
- Secondary air injection
- Exhaust gas recirculation (EGR)
- Evaporative emissions control
- Performance
-
- Variable valve timing
- Dual overhead camshafts
- Four valves per cylinder
- Dry-sump lubrication system
- Engine Management
-
- Bosch ME7.1 engine control unit
- Knock sensor system
- Crankshaft position sensor
- Camshaft position sensor
- Cooling System
-
- Electric cooling fan
- Dual-stage coolant pump
- Aluminum radiator
- Coolant temperature sensor
Safety Features
- Engine Protection
-
- Overheating protection
- Oil pressure monitoring
- Crankshaft position sensor monitoring
- Fuel cut-off in case of crash
- Emission Safety
-
- Fault code storage
- Emission system monitoring
- Catalyst monitoring
- Electrical Safety
- Battery disconnect in case of airbag deployment
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- Sound-dampening insulation
- Helical gear teeth design
- Smooth Operation
-
- Hydraulic engine mounts
- Balanced crankshaft
- Laser-balanced components
- Convenience
-
- Automatic start/stop technology
- Remote engine start preparation
- Heated engine block heater
Accessories
- Engine Accessories
-
- Engine cover kit
- Performance air filter
- Chrome-plated engine components
- Cooling Accessories
-
- Performance radiator
- Aluminum coolant hoses
- High-performance coolant
- Tuning Accessories
-
- Engine tuning module
- Performance camshaft
- Lightweight pulley kit
Maintenance
- Service interval
- Every 5,000 to 7,500 miles (8,000 to 12,000 km)
- Maintenance Notes
- Synthetic oil recommended. Oil filter replacement required at every service interval.
- Maintenance Items
-
- Oil change
- Oil filter replacement
- Air filter inspection
- Spark plug replacement (every 30,000 miles)
- Belt inspection
- Brake fluid change (every 30,000 miles)
- Coolant change (every 60,000 miles)
Warranty
- Basic Warranty
- Miles: 50,000 milesYears: 4 yearsCoverage: Bumper-to-bumper
- Powertrain Warranty
- Miles: 70,000 milesYears: 5 yearsCoverage: Engine, transmission, drivetrain
- Corrosion Warranty
- Miles: Unlimited milesYears: 12 yearsCoverage: Perforation of body panels
- Maintenance Warranty
- Miles: 25,000 milesYears: 2 yearsCoverage: Scheduled maintenance
Production Details
- Manufacturer
- Audi AG
- Manufacturing Process
-
- CNC machining
- Gravity die-casting
- High-pressure die-casting
- Robotized assembly
- Quality Control
- inspection: End-of-line testingCertification: ISO 9001:2015Warranty Period: 2 years for manufacturing defects
- Sustainability Practices
-
- Recyclable materials
- Low-emission production
- Energy-efficient manufacturing
- Production Metrics
- Over 100,000 units produced annually
Service Information for 4.2l engine Service
Maintenance and service requirements specific to this component
- Oil change (synthetic 5W-40)
- Oil filter replacement
- Tire pressure check and adjustment
- Brake pad inspection
- Wiper blade inspection
Recommended for normal driving conditions
- Air filter inspection and replacement
- Cabin air filter replacement
- Spark plug inspection
- Belt inspection (accessory and timing)
- Fluid level check (coolant, transmission, brake)
Includes additional inspections for extended driving
- Spark plug replacement
- Fuel filter replacement
- Transmission fluid change
- Differential fluid change
- Brake fluid change
- Battery test and charging
Major service interval with extensive checks
Common Questions
Find answers to common questions about torque specifications
Q1 What is the horsepower of the 4.2L V8 engine in the 2002-2010 Audi A8?
What is the horsepower of the 4.2L V8 engine in the 2002-2010 Audi A8?
The 4.2L V8 engine in the 2002-2010 Audi A8 produces 335 horsepower at 6500 rpm.
Q2 What is the torque output of the 4.2L V8 engine in the Audi A8?
What is the torque output of the 4.2L V8 engine in the Audi A8?
The 4.2L V8 engine delivers 317 lb-ft of torque at 3500 rpm.
Q3 What type of fuel system does the 4.2L V8 engine use?
What type of fuel system does the 4.2L V8 engine use?
The 4.2L V8 engine utilizes a multi-port fuel injection system for efficient fuel delivery.
Q4 What is the recommended oil type for the 4.2L V8 engine?
What is the recommended oil type for the 4.2L V8 engine?
Audi recommends using synthetic engine oil with a viscosity of 5W-40 for the 4.2L V8 engine.
Q5 What is the engine displacement of the 4.2L V8 engine?
What is the engine displacement of the 4.2L V8 engine?
The engine displacement is 4172 cc (4.2 liters), with a bore of 84.5 mm and a stroke of 93 mm.
Q6 Is the 4.2L V8 engine compatible with E85 fuel?
Is the 4.2L V8 engine compatible with E85 fuel?
No, the 4.2L V8 engine is not designed to run on E85 fuel. It requires premium unleaded gasoline with an octane rating of 91 or higher.
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 4.2L V8 Engine Maintenance Guide
Coming SoonComprehensive guide covering routine maintenance procedures, including oil changes, timing belt replacement, and spark plug service.
Audi A8 4.2L V8 Technical Specifications
Coming SoonDetailed technical specifications for the 4.2L V8 engine, including torque values, fluid capacities, and performance metrics.
Audi Genuine Parts Catalog for 4.2L V8 Engine
Coming SoonOfficial catalog of genuine Audi parts and components for the 4.2L V8 engine, ensuring optimal performance and warranty compliance.
Audi A8 4.2L V8 Troubleshooting Guide
Coming SoonStep-by-step troubleshooting guide for common issues with the 4.2L V8 engine, including diagnostic codes and repair procedures.
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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.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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