Audi Audi A4 2005-2008 Drivetrain Specifications
Audi Audi A4 2005-2008

Audi Audi A4 2005-2008 Drivetrain Specifications

Detailed technical specifications and maintenance guide for the 2005-2008 Audi A4 drivetrain system. Includes engine, transmission, differential, and driveshaft details, torque specs, and repair procedures.

Updated

2005-2008 Audi A4 Drivetrain Specifications Specifications

This document provides detailed drivetrain specifications for the 2005-2008 Audi A4. It includes information on engines, transmissions, drivetrains, and performance metrics. Use this guide to understand the technical aspects of the vehicle's powertrain, compare different models, and assist in maintenance or upgrades. The document is organized into sections for easy navigation.

How to Use

To find specific information, use the search function with keywords like 'engine', 'transmission', or 'drivetrain'.

Navigate through the sections using the table of contents. Each section provides detailed specifications and technical points.

Key Specifications

Engine Options

2.0L Turbo I4, 3.2L V6

Transmission Options

6-Speed Manual, 6-Speed Tiptronic Auto

Drivetype

FWD, quattro AWD

Horsepower Range

140-255 HP

Torque Range

207-243 lb-ft

Top Speed

155 mph (electronically limited)

Available Specifications

Engine Specifications

This section details the engine options available for the 2005-2008 Audi A4, including displacement, horsepower, torque, and fuel systems.

Gasoline Engines
  • 2.0L Turbocharged Inline-4 (BWA/BWB/BWC)
  • 3.2L V6 (AYQ)
  • Horsepower: 200 HP @ 5,100-6,000 rpm (2.0T), 255 HP @ 6,500 rpm (3.2L V6)
  • Torque: 207 lb-ft @ 1,800-5,000 rpm (2.0T), 243 lb-ft @ 3,250 rpm (3.2L V6)
  • Fuel System: Direct Fuel Injection
Diesel Engines
  • 2.0L Turbocharged Inline-4 (BRD)
  • Horsepower: 140 HP @ 4,000 rpm
  • Torque: 236 lb-ft @ 1,750 rpm
  • Fuel System: Common Rail Direct Injection

Transmission Specifications

This section covers the transmission options, including manual, automatic, and S tronic dual-clutch transmissions.

Manual Transmission
  • 6-Speed Manual (02M)
  • Gear Ratios: 3.286 (1st), 1.913 (2nd), 1.158 (3rd), 0.850 (4th), 0.611 (5th), 0.464 (6th)
  • Final Drive Ratio: 3.20 (2.0T), 2.73 (3.2L V6)
  • Clutch Type: Hydraulically Actuated Diaphragm Spring
Automatic Transmission
  • 6-Speed Tiptronic Automatic (09E)
  • Gear Ratios: 3.786 (1st), 2.400 (2nd), 1.520 (3rd), 1.000 (4th), 0.778 (5th), 0.580 (6th)
  • Final Drive Ratio: 3.20 (2.0T), 2.73 (3.2L V6)
  • Features: Manual Shift Mode, Adaptive Shift Program

Drivetrain and Drivetype

This section explains the drivetrain layout, including front-wheel drive and quattro all-wheel drive systems.

Drivetrain Layout
  • Front-Wheel Drive (FWD) models feature a transverse engine layout
  • Quattro All-Wheel Drive models feature a longitudinal engine layout with center differential
  • Torque Distribution: 50:50 under normal conditions, variable torque distribution during slip
  • Center Differential: Mechanical, with optional torque vectoring
Quattro All-Wheel Drive
  • Permanent all-wheel drive with self-locking center differential
  • Wheel-by-wheel torque distribution capability
  • Enhanced traction and stability in all driving conditions
  • Standard on 3.2L V6 models, optional on 2.0T models

Performance and Capability

This section outlines the performance metrics and towing capabilities of the 2005-2008 Audi A4.

Acceleration and Top Speed
  • 0-60 mph: 6.3 seconds (3.2L V6 quattro), 6.5 seconds (2.0T quattro)
  • Top Speed: Electronically limited to 155 mph (250 km/h)
  • Standing Quarter Mile: 14.8 seconds @ 96 mph (3.2L V6 quattro)
Towing Capacity
  • Maximum Towing Capacity: 3,300 lbs (1,500 kg)
  • Recommended Towing Capacity: 2,200 lbs (1,000 kg)
  • Towing Hitch: Available as optional equipment

Additional Components

This section covers additional drivetrain components, including the differential, driveshafts, and exhaust system.

Differential and Driveshafts
  • Front Differential: Open-type on FWD models, mechanical limited-slip on quattro models
  • Rear Differential: Open-type on FWD models, mechanical limited-slip on quattro models
  • Driveshafts: Equal-length on quattro models, with constant velocity joints
  • Differential Lock: Electronic differential lock (EDL) on quattro models
Exhaust System
  • Dual Exhaust System on 3.2L V6 models
  • Single Exhaust System on 2.0T models
  • Exhaust Note: Sport-tuned on S Line models
  • Emissions: EURO 4 compliant

Component Specifications

Overview

Type
All-wheel drive
Configuration
quattro system
Platform
Volkswagen Group B6
Engine Options
2.0L Turbo, 3.2L V6, 2.0L TDI, 3.0L TDI
Layout
Longitudinal front-engine, all-wheel drive
Model Years
2005-2008

Dimensions

Wheelbase
104.3 in (2651 mm)
Track Width Front
60.2 in (1529 mm)
Track Width Rear
60.0 in (1524 mm)
Ground Clearance
4.7 in (120 mm)
Approach Angle
18.4°
Departure Angle
17.6°
Axle Load Ratio Front
54.7%
Axle Load Ratio Rear
45.3%

Materials

Engine Block
Cast iron or aluminum alloy
Transmission Casing
Aluminum alloy
Driveshaft
High-strength steel
Axles
Forged steel
Differential Housing
Cast iron

Features

Engine Management
  • Direct fuel injection
  • Variable valve timing (VVT)
  • Turbocharger with intercooler
  • Exhaust gas recirculation (EGR)
  • Catalytic converter
Transmission
  • 6-speed manual
  • 6-speed automatic Tiptronic
  • Continuously variable transmission (CVT)
  • Manual mode with paddle shifters
Drivetrain
  • quattro all-wheel drive with torque distribution
  • Electronic Differential Lock (EDL)
  • Anti-slip regulation (ASR)
  • Self-locking center differential
Suspension
  • Four-link front suspension
  • Trailing arm rear suspension
  • Adaptive air suspension (optional)
  • Dynamic Ride Control (DRC)

Safety Features

Electronic Stability Control
  • Electronic Stability Program (ESP)
  • Traction control system (TCS)
  • Anti-slip regulation (ASR)
  • Emergency brake assist (EBA)
Braking System
  • Dual-circuit braking system
  • Anti-lock braking system (ABS)
  • Electronic brakeforce distribution (EBD)
  • Brake assist (BA)
Collision Protection
  • Front, side, and curtain airbags
  • Reinforced body structure
  • Crash-optimized front crumple zones
  • Side impact protection beams
Security
  • Immobilizer system
  • Anti-theft alarm system
  • Remote central locking
  • Keyless entry (optional)

Comfort Features

Noise insulation
  • Acoustic windshield
  • Sound-dampening materials
  • Sealed door and window systems
  • Active noise cancellation (optional)
Ride Quality
  • Adaptive suspension damping
  • Air suspension with height adjustment
  • Dynamic ride control
  • Comfort-oriented spring rates
Convenience
  • Automatic transmission with manual mode
  • Paddle shifters (optional)
  • Cruise control
  • Power steering with variable assist
Ergonomics
  • Adjustable steering wheel
  • Memory seats (optional)
  • Multi-function steering wheel
  • Climate control system

Accessories

Maintenance Kits
  • Oil change kit
  • Air filter replacement set
  • Cabin air filter
  • Spark plug set
Performance Upgrades
  • High-performance air filter
  • Cat-back exhaust system
  • Engine tuning software
  • Lightweight alloy wheels
Towing Equipment
  • Trailer hitch
  • Wiring harness
  • Ball mount
  • Tie-down straps

Maintenance

Service interval
Every 5,000 to 15,000 miles (8,000 to 24,000 km)
Service Items
  • Oil and filter change
  • Tire rotation
  • Brake pad inspection
  • Fluid level check
  • Air filter inspection
  • Spark plug replacement (at 30,000 miles)
  • Belts and hoses inspection
  • Suspension and steering inspection
Maintenance Notes
  • Check battery terminals and cables
  • Inspect drive belts for wear
  • Clean or replace cabin air filter
  • Check tire pressure and tread depth
  • Inspect exhaust system for leaks

Warranty

Basic Warranty
Miles: 50000
Years: 4
Coverage: Bumper-to-bumper
Notes: Includes all parts and labor for defects in materials and workmanship
Powertrain Warranty
Miles: 70000
Years: 5
Coverage: Engine, transmission, drivetrain
Notes: Covers major powertrain components
Corrosion Warranty
Miles: 120000
Years: 12
Coverage: Perforation due to corrosion
Notes: Rust-through protection
Maintenance Warranty
Miles: 30000
Years: 3
Coverage: Scheduled maintenance
Notes: Covers regular maintenance services

Production Details

Manufacturer
Audi AG
Manufacturing Location
Ingolstadt, Germany
Manufacturing Process
  • Robotized welding
  • Laser cutting
  • Hydroforming
  • Aluminum casting
  • Precision machining
Quality Control
inspection: Dimensional checks, Material integrity tests, Functional tests, Leak testing, End-of-line testing
Certifications: ISO 9001, ISO 14001, IATF 16949
Sustainability Practices
  • Recycled materials usage
  • Energy-efficient manufacturing
  • Emission reduction technologies
  • Waste reduction programs
Production Metrics
Annual Production: Approximately 200,000 units
Cycle Time: 22 hours per unit
Defect Rate: <1%
Warranty Claim Rate: Low

Service Information for Drivetrain Service

Maintenance and service requirements specific to the drivetrain component

5,000
6
  • Oil and filter change
  • Tire rotation
  • Brake pad inspection
  • Fluid level check
  • Air filter inspection

Regular maintenance to ensure optimal performance and longevity

15,000
12
  • Spark plug replacement
  • Drive belt inspection
  • Suspension and steering inspection
  • Exhaust system check
  • Battery terminal cleaning

Intermediate service to monitor wear and tear

30,000
24
  • Timing belt replacement (if applicable)
  • Transmission fluid change
  • Differential fluid change
  • Transfer case fluid check
  • Driveshaft inspection

Major service to replace critical components and fluids

60,000
48
  • Engine mounts replacement
  • Suspension bushings inspection
  • CV joint inspection
  • Brake rotor resurfacing
  • Fuel system cleaning

Comprehensive service to maintain drivetrain health

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of drivetrain does the 2005-2008 Audi A4 use?

The 2005-2008 Audi A4 is available with either front-wheel drive (FWD) or quattro all-wheel drive (AWD) systems. The quattro system uses a Torsen T-2 center differential to distribute torque between the front and rear axles, with a default split of 50:50 under normal conditions.

Q2

What is the torque capacity of the 2005-2008 Audi A4 drivetrain?

The torque capacity of the drivetrain varies by engine and transmission. For example, the 2.0T FSI engine paired with a 6-speed manual transmission can handle up to 258 lb-ft of torque, while the 3.2L V6 engine with a 6-speed automatic can handle up to 243 lb-ft. The quattro system is designed to handle these torque levels efficiently.

Q3

How often should the drivetrain components be inspected?

Audi recommends inspecting the drivetrain components, including the driveshaft, differential, and axles, every 40,000 miles or as part of the scheduled maintenance. Regular inspections help identify wear and tear, such as worn CV joints or leaking differential seals, before they lead to major failures.

Q4

What type of fluid is used in the differentials of the 2005-2008 Audi A4?

The front and rear differentials in the 2005-2008 Audi A4 require synthetic gear oil with a viscosity of SAE 75W-90. For the quattro system, the Torsen center differential uses the same fluid. Always use Audi-approved fluids to ensure compatibility and performance.

Q5

Can the drivetrain be upgraded for higher performance?

Yes, the drivetrain can be upgraded with aftermarket components such as reinforced driveshafts, limited-slip differentials, and upgraded axles. However, any modifications should be performed by a qualified technician to ensure proper installation and compatibility with the vehicle's existing systems.

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 A4 Drivetrain Maintenance Guide

Coming Soon

A detailed guide on maintaining the drivetrain components, including fluid changes, inspections, and common issues.

Quattro All-Wheel Drive System Overview

Coming Soon

An in-depth explanation of the quattro system, including its operation, benefits, and maintenance requirements.

Drivetrain Fluid Specifications

Coming Soon

A comprehensive list of recommended fluids for the drivetrain components, including differentials and transfer cases.

Drivetrain Upgrade Options

Coming Soon

Explore aftermarket upgrades for the drivetrain, including performance differentials and reinforced components.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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