Audi Audi S8 2012-2018 Electrical Specifications
Audi Audi S8 2012-2018

Audi Audi S8 2012-2018 Electrical Specifications

Find detailed electrical specifications for the 2012-2018 Audi S8, including battery, alternator, wiring, and more. Essential for maintenance, repair, and upgrades.

Updated

Electrical Specifications Overview Specifications

This document provides a comprehensive overview of the electrical specifications for the 2012-2018 Audi S8. It includes detailed information on battery systems, electrical powertrain components, wiring, and key electrical features. Users can navigate through the sections to find specific technical details or use the quick reference section for key specifications. The document is designed to assist technicians, enthusiasts, and owners in understanding and maintaining the electrical systems of the vehicle.

How to Use

To search for specific information, use the search functionality by typing keywords such as 'battery', 'voltage', or 'powertrain' in the search bar. Results will highlight relevant sections and subsections.

Navigate through the document using the table of contents or section headers. Each major section contains subsections with detailed technical points. Use the quick reference section for fast access to key specifications.

Key Specifications

Battery Voltage

12V

Alternator Output

180A

Electric Motor Power

95 kW

Battery Capacity

70Ah

Charging Voltage

14.4V

Available Specifications

Battery and Charging System

This section details the specifications and characteristics of the battery and charging system in the 2012-2018 Audi S8. It includes information on battery type, capacity, voltage, and charging parameters.

Battery Specifications
  • Battery type: Lithium-Ion
  • Voltage: 12V
  • Capacity: 70Ah
  • Reserve capacity: 120 minutes
  • Cold cranking amps: 850 CCA
  • Battery weight: 25 kg
Charging System
  • Alternator type: High-efficiency alternator
  • Alternator output: 180A
  • Charging voltage: 14.4V
  • Charging current: 70A
  • Regulator type: Electronic voltage regulator
  • Overcharge protection: Yes

Electrical Powertrain

This section provides detailed information on the electrical components of the powertrain, including the electric motor, inverter, and high-voltage battery system.

Electric Motor
  • Motor type: Synchronous electric motor
  • Power output: 95 kW
  • Torque output: 350 Nm
  • Speed range: 0-12,000 rpm
  • Cooling system: Liquid-cooled
  • Efficiency: >90%
  • Weight: 60 kg
Inverter and Control Unit
  • Inverter type: IGBT-based inverter
  • Maximum current: 400A
  • Voltage range: 200-400V DC
  • Switching frequency: 10 kHz
  • Control unit: Integrated motor controller
  • Protection features: Overcurrent, undervoltage, and thermal protection

Wiring and Connectors

This section covers the specifications and standards for the wiring harness and electrical connectors used in the 2012-2018 Audi S8.

Wiring Harness
  • Material: Cross-linked polyethylene (XLPE)
  • Voltage rating: Up to 600V AC/DC
  • Temperature range: -40°C to 125°C
  • Shielding: Double-shielded for EMI protection
  • Weight: 50 kg
  • Length: 100 meters
Connectors
  • Type: Sealed waterproof connectors
  • Material: Nylon with gold-plated contacts
  • Current rating: Up to 30A
  • Voltage rating: Up to 300V AC/DC
  • Durability: 10,000 mating cycles
  • Sealing rating: IP67
  • Weight: 0.5 kg per connector

Component Specifications

Overview

Voltage
12V
Battery Type
Enhanced Flooded Battery (EFB)
Alternator Capacity
180 Amps
Battery Configuration
Dual Battery System
Electrical Platform
MLB (Modular Longitudinal Matrix)
System Control
CAN Bus

Dimensions

Battery Length
278 mm (10.94 in)
Battery Width
175 mm (6.89 in)
Battery Height
190 mm (7.48 in)
Alternator Weight
8.5 kg (18.74 lbs)
Starter Motor Weight
6.0 kg (13.23 lbs)
Battery Capacity
80 Ah / 20 Hr
Wiring Harness Length
100 meters (328.08 feet)
Alternator Size
170 mm x 130 mm x 160 mm (6.69 x 5.12 x 6.30 in)

Materials

Battery Terminals
Brass
Wiring Harness
Copper core with PVC insulation
Connectors
Nickel-plated brass
Alternator Housing
Aluminum alloy
Starter Motor Housing
Steel alloy

Features

Advanced Driver Assistance
  • Adaptive Cruise Control
  • Lane Departure Warning
  • Automatic Emergency Braking
  • Traffic Sign Recognition
Lighting System
  • LED Headlights
  • Dynamic Turn Signals
  • Ambient Interior Lighting
  • Automatic High Beam Control
infotainment
  • MMI Navigation Plus
  • Bang & Olufsen Sound System
  • Bluetooth Connectivity
  • Voice Command System
Safety Systems
  • Audi Pre-Sense Basic
  • Audi Pre-Sense City
  • Electronic Stability Control
  • Anti-lock Braking System
Convenience
  • Keyless Start
  • Remote Start
  • Electric Steering
  • Power Closing Doors

Safety Features

Emergency Systems
  • Emergency Call (eCall)
  • SOS Button
  • Collision Sensors
  • Post-Collision Battery Disconnect
Protection Systems
  • Airbag System
  • Seatbelt Pretensioners
  • Whiplash Protection
Security Features
  • Anti-theft Alarm System
  • Immobilizer
  • Keyless Entry

Comfort Features

Climate Control
  • 4-Zone Automatic Climate Control
  • Air Quality Sensor
  • Pollutant Sensors
  • Rear Seat Climate Control
Seating
  • Heated Front Seats
  • Ventilated Front Seats
  • Massage Function
  • Memory Seats
Convenience Features
  • Power Steering
  • Power Windows
  • Power Sunroof
  • Rain Sensor
infotainment Features
  • Touchscreen Display
  • Navigation System
  • USB Ports
  • Auxiliary Input

Accessories

Charging
  • Cigarette Lighter
  • USB Charging Ports
  • 12V Power Outlet
  • Auxiliary Charging Socket
Lighting Accessories
  • LED Reading Lights
  • Footwell Lighting
  • Door Sill Lighting
  • Trunk Lighting
Convenience Accessories
  • Sunglasses Holder
  • Storage Pockets
  • Cargo Net
  • Carpet Floor Mats

Maintenance

Service interval
  • First Service: 5,000 miles / 6 months
  • Second Service: 15,000 miles / 12 months
  • Major Service: 30,000 miles / 24 months
Items
  • Battery Check
  • Alternator Belt Inspection
  • Starter Motor Test
  • Wiring Harness Inspection
  • Software Update
Notes
  • Use OEM specified battery type
  • Check electrical connections for corrosion
  • Inspect wiring harness for damage
  • Update software to latest version

Warranty

Basic Warranty
Miles: 50000
Years: 4
Coverage: Bumper-to-Bumper
Battery Warranty
Miles: 100000
Years: 8
Coverage: Battery and Electrical Components
Corrosion Warranty
Miles: 120000
Years: 12
Coverage: Perforation
Accessories Warranty
Miles: 50000
Years: 4
Coverage: Accessories and Entertainment

Production Details

Manufacturer
Audi AG
Manufacturing Process
  • Robotic Welding
  • Laser Cutting
  • Computer-Controlled Assembly
  • Quality Assurance Testing
Quality Control
Process Monitoring: Real-time monitoring of production line
inspection Points: Battery Terminal Integrity, Wiring Harness Continuity, Alternator Output Test, Starter Motor Performance
Sustainability Practices
  • Recycling of materials
  • Energy-efficient manufacturing
  • Reduced water consumption
  • Emission control measures
Production Metrics
Units Per Day: 500
Cycle Time: 20 minutes
Yield Rate: 98.5%
Defect Rate: 1.5%

Service Information for electrical Service

Maintenance and service requirements specific to this component

5,000
6
  • Battery Terminal Cleaning
  • Alternator Belt Inspection
  • Starter Motor Test
  • Wiring Harness Inspection
  • Software Update

Inspect electrical connections for corrosion and clean if necessary

15,000
12
  • Battery Check and Charge Test
  • Alternator Output Test
  • Starter Motor Solenoid Test
  • Fuse Box Inspection
  • Relay Testing

Replace battery if capacity falls below 75%

30,000
24
  • Major Electrical System Overhaul
  • Replace Alternator Belt
  • Starter Motor Replacement if necessary
  • Complete Wiring Harness Check
  • System Performance Testing

Critical to use Audi approved replacement parts

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the technical specifications of the electrical system in the 2012-2018 Audi S8?

The 2012-2018 Audi S8 features a 12V electrical system with a maintenance-free battery (70Ah, 760A cold crank amps). The alternator is rated at 180A, and the vehicle is equipped with advanced electrical components, including a CAN (Controller Area Network) bus system for efficient communication between modules. Compatibility with aftermarket accessories requires adherence to Audi's specified standards to avoid system malfunctions.

Q2

What are the recommended maintenance requirements for the electrical system?

Regular maintenance for the electrical system includes checking the battery terminals for corrosion, ensuring the alternator belt is properly tensioned, and verifying the battery charge level. Every 5 years or 60,000 miles, the battery should be tested and replaced if necessary. Additionally, the entire electrical system should be inspected for any signs of wear or damage during routine service intervals.

Q3

How do I replace the battery in my 2012-2018 Audi S8?

To replace the battery, first disconnect the negative (black) cable, followed by the positive (red) cable. Remove the battery hold-down clamp and bracket, then lift the battery out of the compartment. Install the new battery, ensuring it is properly secured with the bracket and clamp. Reconnect the positive cable first, followed by the negative cable. Finally, reset the vehicle's electrical system using an OBD-II scanner or consult a professional if necessary.

Q4

What are common electrical issues and how can I troubleshoot them?

Common electrical issues include dead batteries, faulty alternators, and malfunctioning sensors. To troubleshoot, start by checking the battery voltage (should be 12.4V-12.7V when off). If the battery is good, test the alternator output (should be 13.5V-14.5V when running). Use an OBD-II scanner to identify any fault codes. Inspect all electrical connections for corrosion or damage. If unresolved, consult a qualified Audi technician.

Q5

How can I optimize the electrical system's performance?

To optimize performance, ensure all electrical connections are clean and secure. Avoid excessive aftermarket electrical loads without proper wiring upgrades. Regularly update the vehicle's software using Audi's recommended procedures. Use high-performance batteries and alternators that meet or exceed Audi's specifications. Monitor the electrical system's health through regular diagnostics and address any issues promptly.

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 S8 Electrical System Service Manual

Coming Soon

Comprehensive guide covering electrical system diagnostics, maintenance, and repair procedures.

Technical Bulletin: Electrical System Updates

Coming Soon

Official updates and technical bulletins for the 2012-2018 Audi S8 electrical system.

Audi S8 Parts Catalog

Coming Soon

Detailed catalog of genuine Audi parts for the electrical system, including batteries, alternators, and wiring.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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