Audi Audi A4 2009-2016 Suspension Specifications
Comprehensive technical documentation for the 2009-2016 Audi A4 suspension system, including front and rear suspension components, alignment settings, torque specifications, and maintenance procedures.
Suspension Specifications Overview Specifications
This document provides a comprehensive overview of the suspension specifications for the 2009-2016 Audi A4. It includes detailed technical information, key components, and maintenance guidelines. Use this guide to understand the suspension system, identify parts, and perform routine maintenance. Refer to the sections below for specific details and use the quick reference section for fast access to key specifications.
How to Use
To search for specific information, use the search functionality by typing keywords related to the suspension component or specification you are looking for. Ensure to use precise terms for accurate results.
Navigate through the sections by selecting the relevant category from the table of contents. Each section is organized hierarchically, starting with major components and drilling down into subsystems and technical details.
Key Specifications
Front Spring Rate
34 N/mm
Rear Spring Rate
28 N/mm
Front Stabilizer Bar Diameter
22 mm
Rear Stabilizer Bar Diameter
20 mm
Shock Absorber Replacement Interval
80,000 km
Available Specifications
Front Suspension
The front suspension of the 2009-2016 Audi A4 features a MacPherson strut design with lower control arms and stabilizer links. This section details the components, technical specifications, and maintenance requirements for the front suspension system.
Front Suspension
The front suspension of the 2009-2016 Audi A4 features a MacPherson strut design with lower control arms and stabilizer links. This section details the components, technical specifications, and maintenance requirements for the front suspension system.
Front Suspension Components
- MacPherson strut with coil spring
- Lower control arms with ball joints
- Stabilizer links with bushings
- Shock absorbers integrated into struts
- Anti-roll bar (stabilizer bar)
Front Suspension Technical Specifications
- Spring rate: 34 N/mm (front)
- Shock absorber damping rates: 180-220 N/mm
- Stabilizer bar diameter: 22 mm
- Camber angle: -1.0° to 0.0°
- Toe angle: 0.0° to 0.5°
Rear Suspension
The rear suspension of the 2009-2016 Audi A4 utilizes a multi-link setup with separate springs and dampers. This section provides details on the components, technical specifications, and maintenance requirements for the rear suspension system.
Rear Suspension
The rear suspension of the 2009-2016 Audi A4 utilizes a multi-link setup with separate springs and dampers. This section provides details on the components, technical specifications, and maintenance requirements for the rear suspension system.
Rear Suspension Components
- Multi-link suspension with separate spring and damper
- Upper and lower control arms
- Trailing arms with bushings
- Shock absorbers
- Anti-roll bar (stabilizer bar)
Rear Suspension Technical Specifications
- Spring rate: 28 N/mm (rear)
- Shock absorber damping rates: 160-200 N/mm
- Stabilizer bar diameter: 20 mm
- Camber angle: -1.0° to 0.0°
- Toe angle: 0.0° to 0.5°
Suspension Components
This section details the key components of the suspension system, including springs, dampers, and stabilizers. It also includes information on their specifications and maintenance intervals.
Suspension Components
This section details the key components of the suspension system, including springs, dampers, and stabilizers. It also includes information on their specifications and maintenance intervals.
Springs and Dampers
- Front spring rate: 34 N/mm
- Rear spring rate: 28 N/mm
- Shock absorber replacement interval: 80,000 km
- Spring replacement interval: 100,000 km
- Damper fluid replacement interval: 60,000 km
Stabilizers and Bushings
- Front stabilizer bar diameter: 22 mm
- Rear stabilizer bar diameter: 20 mm
- Stabilizer link replacement interval: 50,000 km
- Control arm bushing replacement interval: 70,000 km
- Ball joint replacement interval: 90,000 km
Adjustment and Customization
This section provides information on how to adjust and customize the suspension system for different driving conditions and preferences. It includes details on ride height adjustment, camber adjustment, and damping settings.
Adjustment and Customization
This section provides information on how to adjust and customize the suspension system for different driving conditions and preferences. It includes details on ride height adjustment, camber adjustment, and damping settings.
Ride Height Adjustment
- Factory ride height: 120 mm (front), 130 mm (rear)
- Maximum lowering: 30 mm (front and rear)
- Recommended lowering: 20 mm (front and rear)
- Ride height adjustment tools required
- Alignment required after adjustment
Camber and Toe Adjustment
- Camber adjustment range: -1.5° to +1.5°
- Toe adjustment range: -0.5° to +0.5°
- Camber adjustment tools required
- Toe adjustment tools required
- Alignment required after adjustment
Maintenance and Service
This section provides information on the maintenance and service requirements for the suspension system. It includes details on inspection intervals, replacement intervals, and service procedures.
Maintenance and Service
This section provides information on the maintenance and service requirements for the suspension system. It includes details on inspection intervals, replacement intervals, and service procedures.
Inspection and Replacement Intervals
- Suspension inspection interval: 30,000 km
- Shock absorber replacement interval: 80,000 km
- Spring replacement interval: 100,000 km
- Stabilizer link replacement interval: 50,000 km
- Control arm bushing replacement interval: 70,000 km
Service Procedures
- Inspect suspension components for wear and damage
- Replace worn or damaged components
- Check and adjust ride height and alignment
- Check and adjust damping settings
- Lubricate moving parts and bushings
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Component Specifications
Overview
- Type
- Independent Suspension
- Configuration
- MacPherson Strut (Front), Multilink (Rear)
- Platform
- MLB (Modular Longitudinal Matrix)
- Material
- Steel and Aluminum
- Location
- Front and Rear
Dimensions
- Suspension Travel Front
- 120 mm (4.72 in)
- Suspension Travel Rear
- 110 mm (4.33 in)
- Spring Rate Front
- 35 N/mm (2.0 lb/in)
- Spring Rate Rear
- 32 N/mm (1.8 lb/in)
- Shock ABSorber Diameter
- 36 mm (1.42 in)
- Stabilizer Bar Diameter Front
- 23 mm (0.91 in)
- Stabilizer Bar Diameter Rear
- 21 mm (0.83 in)
- Ride Height
- 120 mm (4.72 in) front, 110 mm (4.33 in) rear
Materials
- Front Knuckle
- Aluminum Alloy
- Control Arm
- High-Strength Steel
- Subframe
- Steel
- Spring
- High-Tensile Steel
- Damper
- Steel Body with Hydraulic Fluid
Features
- Ride Comfort
-
- Progressive Rate Springs
- Hydraulic Shock Absorbers
- Optimized Bushings for Reduced Noise
- Tuned Dampers for Smooth Ride
- Handling
-
- Anti-Dive Geometry
- Anti-Squat Geometry
- Stabilizer Bars for Reduced Roll
- Multilink Rear Suspension for Precision
- Adjustability
-
- Optional Adaptive Damping
- Manual Ride Height Adjustment
- Adjustable Stabilizer Bars (Aftermarket)
Safety Features
- Structural integrity
-
- Reinforced Subframe
- Crash-Optimized Design
- Energy-Absorbing Components
- Stability Control integration
-
- Electronic Stability Control (ESC)
- Anti-Roll Mitigation
- Load Transferring Optimization
- Emergency Handling
-
- Hydraulic Brake Assist
- Electronic Brakeforce Distribution
- Suspension Load Monitoring
Comfort Features
- Noise Reduction
-
- Isolated Subframe Mounts
- Hydraulic Bushings
- Acoustic Insulation
- Adjustability
-
- Available Dynamic Ride Control
- Optional Air Suspension
- Variable Damping Settings
- Ride Quality
-
- Tuned Suspension for Comfort
- Progressive Spring Rates
- Low-Friction Dampers
Accessories
- Upgrades
-
- Lowering Springs
- Coilover Kits
- Adjustable Stabilizer Bars
- Replacement Parts
-
- OEM-Grade Shock Absorbers
- High-Performance Bushings
- Stainless Steel Suspension Components
- Customization
-
- Air Suspension Kits
- Adjustable Ride Height Systems
- Performance-Tuned Springs
Maintenance
- Service interval
-
- Inspect shock absorbers every 30,000 miles
- Replace suspension bushings every 50,000 miles
- Check stabilizer bar links every 15,000 miles
- Inspect springs for sag every 40,000 miles
- Replace dampers every 80,000 miles
- Maintenance Notes
- Regular inspection recommended to maintain optimal performance and safety
Warranty
- Basic
- Miles: 48,000 milesYears: 4 yearsCoverage: Suspension components excluding wear items
- Powertrain
- Miles: 70,000 milesYears: 5 yearsCoverage: Suspension components related to powertrain
- Corrosion
- Miles: 12 yearsYears: Unlimited milesCoverage: Perforation of suspension components
- Accessories
- Miles: 48,000 milesYears: 4 yearsCoverage: Suspension accessories and electronic components
Production Details
- Manufacturer
- Audi AG
- Manufacturing Process
-
- Robotically Welded Subframes
- Precision Machined Components
- Hydraulic Press Forming
- Laser Cut Suspension Parts
- Quality Control
- inspection: 100% component inspectionTesting: Dynamic and static load testingCertification: ISO 9001:2015 Certified
- Sustainability Practices
-
- Recycled Steel Usage
- Energy-Efficient Manufacturing
- Reduced Waste Production
- Production Metrics
- Units Per Day: 500 units/dayCycle Time: 30 minutes per unitDefect Rate: <1%Warranty Claim Rate: 0.5%
Service Information for Audi A4 Suspension Service
Maintenance and service requirements specific to the 2009-2016 Audi A4 suspension system
- Inspect shock absorbers for leaks or damage
- Check suspension bushings for wear
- Inspect stabilizer bar links for play
- Check spring pads for wear
- Inspect suspension components for corrosion
Recommended to perform during routine maintenance
- Replace suspension bushings if worn
- Inspect front control arms for ball joint wear
- Check rear suspension links for play
- Inspect spring rates for consistency
- Check damper performance
Special tools may be required for certain inspections
- Replace shock absorbers if necessary
- Inspect and replace stabilizer bars if worn
- Check subframe mounts for degradation
- Inspect coil springs for sag
- Check suspension fluid levels (if applicable)
Major service recommended to ensure optimal performance and safety
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of suspension system does the 2009-2016 Audi A4 use?
What type of suspension system does the 2009-2016 Audi A4 use?
The 2009-2016 Audi A4 features a multi-link front and rear suspension system. The front suspension uses a five-link design with aluminum control arms, while the rear suspension employs a trapezoidal-link setup. This configuration provides improved handling, stability, and ride comfort.
Q2 What is the recommended wheel alignment specification for the Audi A4 suspension?
What is the recommended wheel alignment specification for the Audi A4 suspension?
The recommended wheel alignment specifications for the 2009-2016 Audi A4 are as follows: Front Camber: -0°30' to -1°00', Front Toe: 0°05' to 0°15', Rear Camber: -1°30' to -2°00', Rear Toe: 0°10' to 0°20'. These values ensure optimal tire wear and handling performance.
Q3 How often should the suspension components be inspected?
How often should the suspension components be inspected?
Audi recommends inspecting the suspension components every 15,000 miles or during routine maintenance. Key components to check include control arms, bushings, shock absorbers, and springs for wear, damage, or corrosion.
Q4 What is the torque specification for the front suspension control arm bolts?
What is the torque specification for the front suspension control arm bolts?
The torque specification for the front suspension control arm bolts on the 2009-2016 Audi A4 is 81 lb-ft (110 Nm) for the upper control arm bolts and 74 lb-ft (100 Nm) for the lower control arm bolts. Always use a calibrated torque wrench for accuracy.
Q5 Can the Audi A4 suspension be upgraded for performance?
Can the Audi A4 suspension be upgraded for performance?
Yes, the Audi A4 suspension can be upgraded with aftermarket performance parts such as coilovers, sway bars, and adjustable control arms. However, ensure compatibility with your specific model and trim, and consult a professional for installation to avoid warranty issues.
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 Suspension Service Manual
Coming SoonOfficial Audi service manual detailing suspension maintenance, repair procedures, and specifications for the 2009-2016 A4.
Audi Genuine Parts Catalog
Coming SoonCatalog of genuine Audi suspension components, including control arms, bushings, and shock absorbers, ensuring proper fit and performance.
Audi A4 Suspension Upgrade Guide
Coming SoonComprehensive guide on upgrading the Audi A4 suspension with performance parts, including installation tips and compatibility information.
Audi Technical Service Bulletins (TSBs)
Coming SoonAccess to Audi TSBs related to suspension issues, recalls, and recommended fixes for the 2009-2016 A4.
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Technical Information
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