Audi Audi A6 2004-2011 Suspension Specifications
Comprehensive technical guide for the 2004-2011 Audi A6 suspension system, including detailed specifications, alignment settings, torque values, and maintenance tips for front and rear suspension components.
Suspension Specifications Overview Specifications
This document provides a detailed overview of the suspension specifications for the 2004-2011 Audi A6. It includes technical details, components, adjustments, and key measurements to help users understand and maintain their vehicle's suspension system. Use this guide to identify components, understand suspension types, and perform basic adjustments. Refer to the sections below for in-depth information.
How to Use
To find specific information, use the search functionality by typing keywords such as 'spring rate,' 'shock absorber,' or 'ride height.' This will help you quickly locate relevant details within the document.
Navigate through the sections by selecting the major categories (e.g., Front Suspension, Rear Suspension). Within each section, use the subsections to find specific details. Start with the Quick Reference section for key specifications.
Key Specifications
Front Spring Rate
85-110 N/mm
Rear Spring Rate
80-100 N/mm
Anti-Roll Bar Diameter (Front)
24-26 mm
Anti-Roll Bar Diameter (Rear)
20-22 mm
Suspension Travel (Front/Rear)
70/60 mm
Available Specifications
Front Suspension
The front suspension of the 2004-2011 Audi A6 features a MacPherson strut design with lower wishbones. It is designed for precise handling and stability. This section details the components, adjustments, and technical specifications.
Front Suspension
The front suspension of the 2004-2011 Audi A6 features a MacPherson strut design with lower wishbones. It is designed for precise handling and stability. This section details the components, adjustments, and technical specifications.
Front Suspension Components
- MacPherson strut with coil spring
- Lower wishbone with ball joint
- Anti-roll bar with mounting links
- Steering knuckle with hub carrier
- Stabilizer bushings
Front Suspension Adjustments
- Camber adjustment via eccentric bolts
- Toe adjustment via steering knuckle
- Spring preload adjustment
- Anti-roll bar link length adjustment
- Strut damping settings (if equipped with adaptive suspension)
Rear Suspension
The rear suspension of the 2004-2011 Audi A6 utilizes a self-leveling trapezoidal-link axle design. This setup provides a balance of comfort and handling. This section covers the components, adjustments, and technical details.
Rear Suspension
The rear suspension of the 2004-2011 Audi A6 utilizes a self-leveling trapezoidal-link axle design. This setup provides a balance of comfort and handling. This section covers the components, adjustments, and technical details.
Rear Suspension Components
- Trapezoidal-link axle with torsion beam
- Gas-filled shock absorbers
- Coil springs with integrated helper springs
- Anti-roll bar with mounting brackets
- Trailing arms with bushings
Rear Suspension Adjustments
- Ride height adjustment via coil spring preload
- Toe adjustment via eccentric cam
- Camber adjustment via shim plates
- Anti-roll bar stiffness adjustment
- Shock absorber damping settings (if equipped with adaptive suspension)
Suspension Components and Materials
The suspension system of the 2004-2011 Audi A6 is constructed from high-strength materials to ensure durability and performance. This section details the materials and components used in the suspension system.
Suspension Components and Materials
The suspension system of the 2004-2011 Audi A6 is constructed from high-strength materials to ensure durability and performance. This section details the materials and components used in the suspension system.
Materials and Construction
- High-strength steel for wishbones and links
- Aluminum for strut housings and knuckles
- Polyurethane for bushings and mounts
- Steel for coil springs
- Gas-filled chambers for shock absorbers
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Component Specifications
Overview
- Type
- multi-link suspension
- Configuration
- front and rear independent
- Platform
- Audi A6 C6
- Material
- aluminum and steel components
- Location
- front and rear axles
- Wheelbase
- 108.7 inches (2759 mm)
Dimensions
- Spring Diameter
- 55 mm (2.17 in)
- Shock ABSorber Length
- 18.9 inches (480 mm)
- Stabilizer Bar Diameter Front
- 20 mm (0.79 in)
- Stabilizer Bar Diameter Rear
- 18 mm (0.71 in)
- Bushing Size
- 45 mm (1.77 in)
- Coil Spring Rate
- 100 N/mm (front), 90 N/mm (rear)
- Ride Height
- 5.3 inches (134 mm) front, 5.1 inches (130 mm) rear
Materials
- Control Arm
- forged aluminum alloy
- Knuckle
- cast aluminum alloy
- Subframe
- high-strength steel
- Stabilizer Bar
- spring steel
- Bushings
- polyurethane elastomer
Features
- Ride Quality
-
- multi-link rear suspension
- self-leveling suspension
- anti-dive and anti-squat geometry
- progressive-rate coil springs
- adaptive damping system
- Handling Characteristics
-
- variable assist power steering
- speed-dependent steering ratio
- rear wheel steering capability
- dynamic stability control integration
- torque vectoring
- Suspension Control
-
- electronic suspension control
- driver-selectable ride modes
- automatic ride height adjustment
- load-leveling capability
- integral steering system
- Safety integration
-
- crash-active suspension response
- roll-over protection integration
- deformation zones for impact absorption
- suspension failure monitoring
- emergency lowering system
- Comfort Enhancements
-
- acoustic insulation of suspension components
- ride comfort optimization
- road noise reduction
- vibration damping
- air suspension option
Safety Features
- Load Limiting
-
- suspension load limiters
- spring travel limiters
- shock absorber overload protection
- Impact Protection
-
- energy-absorbing deformation zones
- reinforced suspension mounting points
- crash-optimized suspension components
- Stability Control
-
- electronic stability program (ESP)
- traction control system (TCS)
- roll stability control
- cornering brake control (CBC)
Comfort Features
- Ride Quality Settings
-
- comfort mode
- auto mode
- dynamic mode
- individual mode
- off-road mode
- Noise Reduction
-
- sound-dampening bushings
- insulated suspension mounts
- acoustic shielding
- vibration-isolating subframe
- Adjustability
-
- manual ride height adjustment
- electronic ride height adjustment
- cornering light function
- dynamic turning lights
- Convenience
-
- automatic ride height lowering at speed
- parking mode ride height
- trailer stabilization assist
- towing mode suspension settings
Accessories
- Suspension Kits
-
- lowering springs
- coilover suspension kits
- air suspension conversion
- sport suspension package
- off-road suspension lift
- Handling Enhancements
-
- anti-sway bar kits
- camber adjustment kits
- stabilizer bar links
- sport-tuned dampers
- adjustable control arms
- Protection
-
- suspension skid plates
- control arm guards
- steering rack protectors
- subframe reinforcement
- cv joint guards
Maintenance
- Service interval
- 15,000 miles (24,140 km) or 12 months
- Service Items
-
- inspect suspension components
- check shock absorbers
- replace stabilizer bar links
- lubricate bushings
- tighten suspension bolts
- Maintenance Notes
-
- use only approved lubricants
- replace worn components immediately
- follow torque specifications
- check ride height periodically
- perform alignment after suspension work
Warranty
- Basic
- Miles: 50,000 milesYears: 4 yearsCoverage: suspension components
- Extended
- Miles: 100,000 milesYears: 6 yearsCoverage: suspension system
- Powertrain
- Miles: 70,000 milesYears: 5 yearsCoverage: suspension-related powertrain components
- Corrosion
- Miles: unlimited milesYears: 12 yearsCoverage: perforation of suspension components
Production Details
- Manufacturer
- Audi AG
- Manufacturing Facility
- Neckarsulm, Germany
- Manufacturing Process
-
- robotic welding
- CNC machining
- aluminum forging
- steel stamping
- surface coating
- Quality Control
- inspection: 100% component inspectionTesting: dynamic and static load testingCertification: ISO/TS 16949 compliant
- Sustainability Practices
-
- recycled materials usage
- energy-efficient manufacturing
- waste reduction programs
- environmentally-friendly coatings
- Production Metrics
- Cycle Time: 120 seconds per componentThroughput: 500 units per dayDefect Rate: less than 1%Warranty Claim Rate: 0.5%
Service Information for Suspension Service
Maintenance and service requirements specific to the suspension system
- Inspect suspension components for wear or damage
- Check shock absorbers for leaks or damping issues
- Replace stabilizer bar links if worn
- Lubricate suspension bushings
- Check and tighten all suspension bolts
Perform wheel alignment if any suspension component is replaced
- Replace shock absorbers if showing signs of wear
- Inspect coil springs for sagging or damage
- Check stabilizer bars for bending or damage
- Inspect control arms for ball joint wear
- Check ride height and adjust if necessary
Use only OEM or equivalent parts for replacement
- Perform full suspension overhaul if necessary
- Replace all suspension bushings
- Inspect and replace subframe mounts
- Check and replace steering rack components
- Perform dynamic suspension testing
Special tools may be required for certain procedures
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of suspension system does the 2004-2011 Audi A6 use?
What type of suspension system does the 2004-2011 Audi A6 use?
The 2004-2011 Audi A6 features a multi-link front and rear suspension system. The front suspension uses a four-link design with upper and lower control arms, while the rear suspension employs a trapezoidal-link setup. This configuration provides superior handling, stability, and ride comfort.
Q2 What is the recommended ride height for the Audi A6 suspension?
What is the recommended ride height for the Audi A6 suspension?
The factory ride height for the 2004-2011 Audi A6 is approximately 150 mm (5.9 inches) from the ground to the bottom of the front bumper. However, this can vary slightly depending on the trim level and optional adaptive air suspension, which adjusts ride height dynamically.
Q3 How do I know if my Audi A6 suspension components need replacement?
How do I know if my Audi A6 suspension components need replacement?
Common signs of worn suspension components include uneven tire wear, excessive bouncing or swaying, knocking noises over bumps, and a noticeable drop in ride height. Inspect the control arms, bushings, shock absorbers, and springs for wear or damage. Use a torque wrench to ensure all bolts are tightened to factory specifications (e.g., front lower control arm bolt: 90 Nm + 90°).
Q4 Can I install aftermarket suspension components on my Audi A6?
Can I install aftermarket suspension components on my Audi A6?
While aftermarket suspension components are available, it is recommended to use genuine Audi parts or OEM-equivalent components. Aftermarket parts may affect ride quality, handling, and warranty coverage. Always ensure compatibility with your specific model and trim, as the 2004-2011 Audi A6 has variations in suspension design for different engines and drivetrains.
Q5 What is the torque specification for the Audi A6 suspension bolts?
What is the torque specification for the Audi A6 suspension bolts?
Torque specifications vary by component. For example, the front upper control arm bolt requires 50 Nm + 90°, while the rear lower control arm bolt requires 70 Nm + 90°. Always refer to the official Audi service manual for precise torque values and tightening sequences to ensure proper installation and safety.
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 A6 Suspension Service Manual
Coming SoonOfficial Audi service manual detailing suspension system maintenance, repair procedures, and torque specifications.
Audi Genuine Parts Catalog
Coming SoonCatalog of genuine Audi suspension components, including part numbers and compatibility information for the 2004-2011 A6.
Suspension Diagnostic Guide
Coming SoonStep-by-step guide to diagnosing common suspension issues, including noise, vibration, and handling problems.
Adaptive Air Suspension Overview
Coming SoonTechnical overview of the optional adaptive air suspension system, including operation, maintenance, and troubleshooting tips.
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Technical Information
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