Audi Audi A8 2018-present 4.0L Engine Specifications
Detailed technical specifications and documentation for the 4.0L V8 TFSI engine in the 2018-Present Audi A8. Includes performance data, system details, and maintenance guidelines.
2018-Present Audi A8 4.0L Engine Specifications Specifications
This document provides detailed specifications and technical information for the 4.0L engine found in the 2018-Present Audi A8. It is designed to serve as a comprehensive reference guide for engineers, technicians, and enthusiasts. The document is organized into sections covering key aspects of the engine, including performance, technical features, and emissions. Use the search functionality to find specific details or navigate through the sections for a thorough understanding of the engine's capabilities and design.
How to Use
To find specific information, use the search bar at the top of the document. Enter keywords such as 'horsepower,' 'torque,' or 'fuel efficiency' to locate relevant details quickly.
Navigate through the document by scrolling through the sections. Each major section is divided into subsections with detailed specifications. Use the quick reference section for key figures at a glance.
Key Specifications
Horsepower
460 HP @ 5,500 rpm
Torque
487 lb-ft @ 1,400 rpm
Displacement
3,997 cc
0-60 mph
4.7 seconds
Top Speed
155 mph
Available Specifications
Engine Overview
This section provides an overview of the 4.0L engine, including its type, displacement, and cylinder configuration. It also covers basic performance metrics and design features.
Engine Overview
This section provides an overview of the 4.0L engine, including its type, displacement, and cylinder configuration. It also covers basic performance metrics and design features.
Engine Type
- 4.0L V8 engine
- Twin-turbocharged direct fuel injection
- 90-degree V configuration
- Aluminum alloy block and heads
- Dry-sump lubrication system
Displacement and Cylinders
- Displacement: 3,997 cc
- 8 cylinders
- Bore x stroke: 84.5 mm x 89.0 mm
- Compression ratio: 8.3:1
- Valvetrain: 32 valves with variable valve timing
Performance
This section details the performance capabilities of the 4.0L engine, including power output, torque, and acceleration times. It also covers fuel efficiency and driving dynamics.
Performance
This section details the performance capabilities of the 4.0L engine, including power output, torque, and acceleration times. It also covers fuel efficiency and driving dynamics.
Power and Torque
- Peak horsepower: 460 HP @ 5,500 rpm
- Peak torque: 487 lb-ft @ 1,400 rpm
- Max engine speed: 6,200 rpm
- Redline: 6,000 rpm
- Specific output: 115.2 HP per liter
Acceleration and Top Speed
- 0-60 mph acceleration: 4.7 seconds
- Top speed: 155 mph (electronically limited)
- Quarter-mile time: 13.2 seconds @ 106 mph
- Power-to-weight ratio: Approximately 8.5 lb/hp
- Torque-to-weight ratio: Approximately 7.3 lb-ft/lb
Technical Features
This section outlines the advanced technical features of the 4.0L engine, including fuel injection, turbocharging, and cooling systems. It also covers emissions control technologies.
Technical Features
This section outlines the advanced technical features of the 4.0L engine, including fuel injection, turbocharging, and cooling systems. It also covers emissions control technologies.
Fuel Injection and Turbocharging
- Direct fuel injection with piezo injectors
- Maximum fuel pressure: 2,000 bar
- Twin turbochargers with variable turbine geometry
- Intercooler: Air-to-water type
- Boost pressure: Up to 20.3 psi
Cooling and Lubrication
- Dual-water pump system
- Low-temperature coolant circuit for turbochargers
- Dry-sump lubrication with oil reservoir
- Oil capacity: Approximately 8.5 quarts
- Oil type: 0W-40 synthetic
Emissions Control
- Euro 6 emissions compliant
- Selective catalytic reduction (SCR) system
- Exhaust gas recirculation (EGR) system
- Particulate filter
- Urea injection system
Emissions and Efficiency
This section provides information on the engine's emissions standards and fuel efficiency. It also covers the engine's environmental impact and efficiency technologies.
Emissions and Efficiency
This section provides information on the engine's emissions standards and fuel efficiency. It also covers the engine's environmental impact and efficiency technologies.
Emissions Standards
- Euro 6 compliant
- US EPA Tier 3 Bin 70 compliant
- ULEV70 emissions rating
- NEDC CO2 emissions: Approximately 235 g/km
- WLTP CO2 emissions: Approximately 255 g/km
Fuel Efficiency
- Combined fuel economy: 19 mpg (US)
- City fuel economy: 16 mpg (US)
- Highway fuel economy: 23 mpg (US)
- Fuel tank capacity: 21.7 gallons
- Range: Approximately 411 miles combined
Search Specifications
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Engine Specifications
Overview
- Type
- V8 twin-turbocharged gasoline engine
- Configuration
- 90-degree V8
- Platform
- Volkswagen Group EA825 engine family
- Material
- Aluminum alloy block and cylinder heads
- Location
- Longitudinal front-engine layout
Dimensions
- Displacement
- 3,993 cc (4.0L)
- Power Output
- 460 HP (342 kW) to 500 HP (373 kW)
- Torque Output
- 487 lb-ft (660 Nm) to 516 lb-ft (700 Nm)
- Engine Length
- 22.4 inches (569 mm)
- Engine Width
- 20.6 inches (523 mm)
- Engine Height
- 24.8 inches (630 mm)
- Dry Weight
- 463 lbs (210 kg)
- Oil Capacity
- 6.5 quarts (6.2 liters)
Materials
- Engine Block
- High-strength aluminum alloy
- Cylinder Head
- Aluminum alloy with integrated exhaust manifolds
- Crankshaft
- Forged steel
- Camshaft
- High-strength steel
- Pistons
- Aluminum alloy with steel reinforcement
- Valves
- Stainless steel (intake and exhaust)
Features
- Engine Management
-
- Bosch ME17.1.1 engine control unit
- Dual turbochargers with twin-scroll technology
- Direct fuel injection with 2,500 bar pressure
- Variable valve timing (VVT) system
- Cylinder on Demand (COD) technology
- Cooling System
-
- Dual-circuit cooling system
- Electric water pump
- Low-temperature coolant circuit
- High-temperature coolant circuit
- Thermostat with electronic control
- Fuel System
-
- High-pressure fuel pump (2,500 bar)
- Fuel injectors with multi-hole nozzles
- Fuel tank capacity: 23.8 gallons (90 liters)
- Fuel type: Premium unleaded gasoline (95 RON or higher)
- Exhaust System
-
- Dual exhaust system with active sound actuators
- Catalytic converters with particulate filters
- Variable exhaust valve system
- Active engine mounts for reduced vibration
- Sound insulation and damping materials
- Drivetrain Integration
-
- Quattro all-wheel drive system
- Tiptronic automatic transmission (8-speed)
- Dynamic torque distribution
- Adaptive transmission control
- Launch control function
Safety Features
- Engine Protection
-
- Automatic start/stop system with coasting function
- Engine immobilizer with anti-theft system
- Over-temperature protection system
- Pressure monitoring system for fuel and oil
- Crash System
-
- Engine cut-off in case of crash
- Fuel cutoff in emergency situations
- Automatic tensioning of seat belts
- Activation of crash sensors
- Thermal Management
-
- Coolant flow control during low-load conditions
- Thermal shielding for turbochargers
- Heat exchanger for efficient cooling
- Temperature monitoring system
- Emission Control
-
- Euro 6d-ISC-FCM emission standard compliance
- Selective catalytic reduction (SCR) system
- Diesel particulate filter (DPF)
- Exhaust gas recirculation (EGR) system
Comfort Features
- Noise Reduction
-
- Active noise cancellation system
- Sound-insulating engine cover
- Damped engine mounts
- Acoustic optimization of intake and exhaust systems
- Efficiency
-
- Start/Stop technology with energy recuperation
- Sail function for reduced fuel consumption
- Cylinder on Demand (COD) for partial load conditions
- Low-friction engine components
- Smooth Operation
-
- Dual-mass flywheel with dampening
- Hydraulic engine mounts
- Torque converter with lock-up clutch
- Adaptive transmission shift strategy
- integration
-
- Integration with Audi Drive Select (ADS)
- Adaptive cruise assist
- Predictive efficiency assist
- Engine speed adaptation for smooth gear shifts
Accessories
- Engine Accessories
-
- Engine cover with sound dampening material
- Oil dipstick with digital readout
- Fuel cap with locking mechanism
- Coolant expansion tank with level sensor
- Performance Upgrades
-
- Available engine tuning kits
- High-performance air filters
- Sport exhaust system options
- Lightweight engine components
- Maintenance Kits
-
- Oil change kit with synthetic oil
- Air filter replacement kit
- Spark plug replacement set
- Fuel injector cleaning kit
Maintenance
- Service interval
- Every 5,000 to 10,000 miles (8,000 to 16,000 km)
- Service Items
-
- Oil and filter change
- Tire pressure check and adjustment
- Brake fluid level check
- Battery health check
- Belts and hoses inspection
- Air filter inspection
- Spark plug replacement (every 30,000 miles)
- Cabin air filter replacement
- Exhaust system inspection
- Suspension and steering system check
- Maintenance Notes
-
- Use synthetic 5W-40 engine oil
- Replace air filter every 15,000 miles
- Inspect belts every 20,000 miles
- Replace brake fluid every 30,000 miles
- Check tire wear and balance every 6,000 miles
Warranty
- Basic Warranty
- Coverage: 4 years or 50,000 milesDetails: Bumper-to-bumper coverage with no deductible
- Powertrain Warranty
- Coverage: 4 years or 50,000 milesDetails: Coverage for engine, transmission, and drivetrain components
- Corrosion Warranty
- Coverage: 12 years or unlimited milesDetails: Perforation warranty for body panels
- Maintenance Warranty
- Coverage: First scheduled maintenance at 10,000 milesDetails: Complimentary maintenance for the first service interval
Production Details
- Manufacturer
- Name: Volkswagen GroupPlant: Audi Hungaria Zrt. (Győr, Hungary)Quality Control: Process: End-of-line testing with dyno checks, Certification: ISO 9001:2015 and IATF 16949:2016 certified
- Manufacturing Process
-
- Cylinder block and head machining
- Crankshaft and camshaft assembly
- Turbocharger assembly and balancing
- Engine block assembly and testing
- Painting and surface treatment
- Final assembly and quality control
- Sustainability Practices
-
- Use of recycled materials in production
- Energy-efficient manufacturing processes
- Water recycling and treatment systems
- Emission reduction technologies in plant operations
- Production Metrics
- Annual Production: Over 10,000 unitsEngine Life Expectancy: 200,000+ miles with proper maintenanceRecycle Rate: 95% of engine components recyclableWarranty Claim Rate: Less than 1% for engine-related issues
Service Information for 4.0l engine Service
Maintenance and service requirements specific to this component
- Oil and oil filter change
- Tire pressure check and adjustment
- Brake fluid level inspection
- Battery health check
- Air filter inspection
Inspect belts and hoses for cracks or damage
- Replace cabin air filter
- Inspect and rotate tires
- Check exhaust system for leaks
- Inspect suspension and steering components
- Check all fluid levels and top off as needed
Use synthetic 5W-40 engine oil for optimal performance
- Replace spark plugs
- Inspect and replace drive belts if necessary
- Flush and replace brake fluid
- Inspect fuel system for leaks
- Check engine mounts for wear
Perform detailed inspection of engine and drivetrain components
Common Questions
Find answers to common questions about torque specifications
Q1 What is the horsepower and torque output of the 4.0L V8 TFSI engine in the 2018-Present Audi A8?
What is the horsepower and torque output of the 4.0L V8 TFSI engine in the 2018-Present Audi A8?
The 4.0L V8 TFSI engine in the Audi A8 produces 453 horsepower at 5,500-6,000 RPM and 487 lb-ft of torque at 1,950-4,500 RPM. This engine features twin-scroll turbochargers and direct fuel injection for optimal performance.
Q2 What type of fuel does the 4.0L V8 TFSI engine require?
What type of fuel does the 4.0L V8 TFSI engine require?
The 4.0L V8 TFSI engine requires premium unleaded gasoline with an octane rating of 91 or higher. Using lower-octane fuel may result in reduced performance and potential engine damage.
Q3 What is the oil capacity and recommended oil type for the 4.0L V8 TFSI engine?
What is the oil capacity and recommended oil type for the 4.0L V8 TFSI engine?
The 4.0L V8 TFSI engine has an oil capacity of approximately 9.7 liters (10.3 quarts). Audi recommends using synthetic engine oil meeting the VW 502 00 or VW 504 00 specification, with a viscosity of 5W-40 or 0W-30, depending on operating conditions.
Q4 What is the recommended service interval for the 4.0L V8 TFSI engine?
What is the recommended service interval for the 4.0L V8 TFSI engine?
Audi recommends servicing the 4.0L V8 TFSI engine every 10,000 miles or 12 months, whichever comes first. This includes oil and filter changes, inspection of the timing belt, and checking the turbocharger system for proper operation.
Q5 Does the 4.0L V8 TFSI engine feature cylinder deactivation?
Does the 4.0L V8 TFSI engine feature cylinder deactivation?
Yes, the 4.0L V8 TFSI engine includes Audi's Cylinder on Demand (COD) technology. Under light load conditions, the system deactivates four cylinders to improve fuel efficiency, reducing fuel consumption by up to 5%.
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 4.0L V8 TFSI Engine Technical Overview
Coming SoonDetailed technical specifications and operational details of the 4.0L V8 TFSI engine, including performance metrics and advanced features.
Audi A8 Maintenance Schedule
Coming SoonOfficial maintenance schedule for the 2018-Present Audi A8, including service intervals and recommended procedures for the 4.0L V8 TFSI engine.
Audi Genuine Parts Catalog
Coming SoonAccess the official catalog of genuine Audi parts for the 4.0L V8 TFSI engine, ensuring optimal performance and warranty compliance.
Audi Warranty and Service Information
Coming SoonComprehensive guide to Audi's warranty coverage and service requirements for the 4.0L V8 TFSI engine, including implications of using non-genuine parts.
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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.
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- If you're unsure about any procedure, consult a qualified professional mechanic.
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