Audi Audi S8 2019-present 4.0L Engine Engine Specifications
Audi Audi S8 2019-present

Audi Audi S8 2019-present 4.0L Engine Specifications

Detailed technical specifications for the 4.0L TFSI V8 engine in the 2019-Present Audi S8. Learn about engine performance, turbocharging, fuel injection, cooling, and emission systems.

Updated

Overview Specifications

Comprehensive description of the 4.0l-engine specifications for the 2019-Present Audi S8, including key features, measurements, and technical details

How to Use

Use the search bar to find specific 4.0l-engine specifications by entering keywords such as 'torque', 'horsepower', or 'engine displacement'.

Navigate through the 4.0l-engine documentation sections using the table of contents or by scrolling through the document. Each section is clearly labeled for easy access.

Key Specifications

Displacement

4.0 liters (3993 cc)

Compression Ratio

10.1:1

Bore x Stroke

84.5 mm x 89.0 mm

Oil Capacity

9.7 liters (10.3 quarts)

Engine Weight

220 kg (485 lbs)

Available Specifications

Engine Performance

Detailed information on the performance capabilities of the 4.0l-engine, including power output, torque, and acceleration.

Power Output
  • 563 horsepower (hp) at 6000 rpm
  • 590 lb-ft of torque at 2000-4500 rpm
  • Top speed electronically limited to 155 mph (250 km/h)
  • 0-60 mph acceleration in 3.8 seconds
Fuel Efficiency
  • Combined fuel economy: 18 mpg (13.1 L/100 km)
  • City fuel economy: 15 mpg (15.7 L/100 km)
  • Highway fuel economy: 24 mpg (9.8 L/100 km)
  • Fuel type: Premium unleaded (91 octane or higher)

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

Engine Design

Technical details on the design and construction of the 4.0l-engine, including materials, layout, and cooling systems.

Engine Layout
  • V8 configuration with twin-turbocharging
  • Aluminum alloy engine block and cylinder heads
  • DOHC (Double Overhead Camshaft) design
  • Direct fuel injection system
Cooling System
  • Liquid-cooled intercoolers for turbochargers
  • High-capacity radiator with electric cooling fans
  • Thermostatically controlled oil cooler
  • Coolant capacity: 12.5 liters (3.3 gallons)

Note: The cooling system is designed to maintain optimal engine temperature under high-performance conditions.

Emissions and Compliance

Information on the 4.0l-engine's emissions standards and compliance with environmental regulations.

Emissions Control
  • Meets Euro 6d-TEMP emissions standards
  • Equipped with dual catalytic converters
  • Particulate filter for reduced soot emissions
  • Low CO2 emissions: 238 g/km
Environmental Compliance
  • Compliant with ULEV (Ultra Low Emission Vehicle) standards
  • Start-stop system for reduced idle emissions
  • Regenerative braking system for improved efficiency
  • Eco mode for optimized fuel consumption

Note: The engine is designed to minimize environmental impact while maintaining high performance.

Engine Specifications

General

Engine Type
V8 TFSI
Displacement
3996 cc
Configuration
90-degree V8
Bore
84.5 mm
Stroke
89.0 mm
Compression Ratio
10.1:1
Fuel System
Direct injection
Fuel Type
Premium unleaded (95 RON)
Emission Standard
Euro 6d-TEMP

Performance

Max Power
563 hp @ 5800-6400 rpm
Max Torque
590 lb-ft @ 2000-4500 rpm
Redline
6800 rpm
0-60 Mph
3.8 seconds
Top Speed
155 mph (electronically limited)

Turbocharging

Turbo Type
Twin-scroll turbochargers
Boost Pressure
1.2 bar
intercooler Type
Air-to-water
Turbo Part Number
07L145702H

Lubrication

Oil Capacity
9.7 liters
Oil Type
VW 504 00 / 507 00
Oil Filter Part Number
06L115562B
Oil Change interval
10000 miles or 12 months

Cooling

Coolant Capacity
12.5 liters
Coolant Type
G13 (purple)
Thermostat Opening Temp
87°C
Radiator Part Number
4M0121251A

Ignition

Spark Plug Type
NGK PLFER7A8EG
Spark Plug Gap
0.7-0.8 mm
Ignition Coil Part Number
06E905115E
Ignition Timing
10° BTDC at idle

Valvetrain

Valve Configuration
DOHC, 4 valves per cylinder
Camshaft Type
Hydraulic roller
Valve Clearance
Hydraulic (self-adjusting)
Timing Belt Part Number
07L109119A

Fuel injection

injector Type
High-pressure direct injection
injector Part Number
06E906036C
Fuel Pressure
200 bar
Fuel Filter Part Number
4M0201511A

Exhaust

Exhaust System Type
Dual exhaust with active valves
Catalytic Converter Part Number
4M0254101B
Exhaust Manifold Part Number
07L128201A
Emission Control
Dual lambda sensors, particulate filter

Maintenance

Timing Chain Interval
Lifetime (inspection at 100,000 miles)
Spark Plug interval
60000 miles
Fuel Filter interval
40000 miles
Air Filter interval
30000 miles
Coolant Flush interval
60000 miles or 5 years

Diagnostics

Obd2 Port Location
Under dashboard, driver's side
Common Fault Codes
  • P0300
  • P0171
  • P0299
Diagnostic Tool
VCDS or Audi-specific scan tool
Sensor References
Crankshaft Position Sensor: 06E906433C
Camshaft Position Sensor: 06E906433B
Knock Sensor: 06E905161A

Service Information Service

Detailed service requirements and schedules for the 4.0L V8 TFSI engine

10000
12
  • Oil and filter change
  • Inspect brake system
  • Check tire pressure and condition
  • Inspect exhaust system

Use only Audi-approved fluids and parts

30000
36
  • Replace air filter
  • Inspect timing chain
  • Check coolant level and condition
  • Inspect spark plugs

Timing chain inspection is critical for long-term reliability

60000
72
  • Replace spark plugs
  • Replace fuel filter
  • Flush and replace coolant
  • Inspect turbocharger system

Follow Audi's torque specifications for all components

Common Questions

Find answers to common questions about torque specifications

Q1

What is the horsepower and torque output of the 4.0L TFSI engine in the 2019-Present Audi S8?

The 4.0L TFSI V8 engine in the Audi S8 produces 563 horsepower at 6,000 RPM and 590 lb-ft of torque between 2,000 and 4,500 RPM. This engine features twin-scroll turbochargers and a mild-hybrid system for enhanced performance and efficiency.

Q2

What type of fuel system does the 4.0L TFSI engine use?

The 4.0L TFSI engine utilizes a direct fuel injection system with Audi's FSI (Fuel Stratified Injection) technology. This system optimizes fuel delivery for improved combustion efficiency, power output, and reduced emissions.

Q3

What is the recommended oil type and capacity for the 4.0L TFSI engine?

Audi recommends using VW 508 00/509 00 approved synthetic 0W-20 engine oil for the 4.0L TFSI engine. The oil capacity is approximately 9.7 liters (10.2 quarts) when performing a complete oil change, including the oil filter replacement.

Q4

Does the 4.0L TFSI engine feature cylinder deactivation?

Yes, the 4.0L TFSI engine includes Audi's Cylinder on Demand (COD) system. This technology deactivates four cylinders under light load conditions to improve fuel efficiency, seamlessly reactivating them when additional power is required.

Q5

What is the service interval for the 4.0L TFSI engine?

Audi recommends a flexible service interval for the 4.0L TFSI engine, typically every 10,000 miles or 12 months, whichever comes first. However, this can vary based on driving conditions and vehicle usage. Always refer to the onboard service indicator or consult an authorized Audi service center.

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 TFSI Engine Technical Overview

Coming Soon

Detailed technical specifications and operational insights for the 4.0L TFSI engine, including performance metrics and system functionalities.

Audi S8 Owner's Manual

Coming Soon

Official owner's manual for the 2019-Present Audi S8, covering maintenance schedules, engine care, and operational guidelines.

Audi Genuine Parts Catalog

Coming Soon

Access the official catalog for genuine Audi parts, including engine components, to ensure optimal performance and warranty compliance.

Audi Service and Maintenance Guide

Coming Soon

Comprehensive guide to servicing the 4.0L TFSI engine, including recommended procedures, tools, and safety precautions.

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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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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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