Audi Audi RS4 2018-present Suspension Specifications
Detailed technical specifications for the 2018-Present Audi RS4 suspension system, including front and rear configurations, shock absorbers, spring rates, anti-roll bars, and alignment settings. Ideal for technicians and enthusiasts.
Overview Specifications
Comprehensive description of the suspension specifications for the 2018-Present Audi RS4, including key features, measurements, and technical details. This section covers the advanced suspension system designed for high-performance handling and comfort.
How to Use
Use the search function to locate specific suspension components or specifications by entering keywords such as 'spring rate', 'damping force', or 'ride height'.
Navigate through the suspension documentation by selecting the relevant section from the table of contents. Each section is organized by major suspension components and their respective technical details.
Key Specifications
Front Spring Rate
35 N/mm
Rear Spring Rate
30 N/mm
Ride Height (Standard)
140 mm
Front Anti-Roll Bar Diameter
28 mm
Rear Anti-Roll Bar Diameter
22 mm
Available Specifications
Front Suspension
Details of the front suspension system, including the design, components, and technical specifications.
Front Suspension
Details of the front suspension system, including the design, components, and technical specifications.
MacPherson Strut Design
- Aluminum lower control arms for reduced weight
- Spring rate: 35 N/mm
- Damping force: 2200 N at 0.3 m/s
- Ride height: 140 mm (adjustable via Audi Drive Select)
Anti-Roll Bar
- Diameter: 28 mm
- Material: Hollow steel for weight reduction
- Stiffness: 15% increase over standard A4 model
- Mounting: Directly integrated into subframe
Note: The anti-roll bar is designed to minimize body roll during high-speed cornering.
Rear Suspension
Technical details of the rear suspension system, including multi-link design and performance enhancements.
Rear Suspension
Technical details of the rear suspension system, including multi-link design and performance enhancements.
Five-Link Independent Suspension
- Spring rate: 30 N/mm
- Damping force: 2000 N at 0.3 m/s
- Ride height: 140 mm (matches front suspension)
- Aluminum components for weight reduction
Rear Anti-Roll Bar
- Diameter: 22 mm
- Material: Hollow steel
- Stiffness: 10% increase over standard A4 model
- Integration: Linked to rear subframe
Note: The rear anti-roll bar works in conjunction with the front to ensure balanced handling.
Adaptive Air Suspension
Details of the optional adaptive air suspension system, including its functionality and technical specifications.
Adaptive Air Suspension
Details of the optional adaptive air suspension system, including its functionality and technical specifications.
Air Spring System
- Adjustable ride height range: 20 mm (lowered) to 40 mm (raised)
- Spring rate variability: 25-45 N/mm
- Damping force range: 1500-3000 N at 0.3 m/s
- Integrated with Audi Drive Select for dynamic adjustments
Dynamic Damping Control
- Adjustable damping in real-time
- Three modes: Comfort, Auto, Dynamic
- Response time: <50 ms for mode changes
- Integrated sensors monitor road conditions
Note: Dynamic Damping Control enhances both comfort and performance by adapting to driving conditions.
Wheel Alignment Specifications
Detailed wheel alignment settings for optimal handling and tire wear.
Wheel Alignment Specifications
Detailed wheel alignment settings for optimal handling and tire wear.
Front Wheel Alignment
- Camber: -0.8° to -1.2°
- Toe-in: 0.10° to 0.20°
- Caster: 7.5° to 8.0°
- Kingpin inclination: 12.5°
Rear Wheel Alignment
- Camber: -1.5° to -1.8°
- Toe-in: 0.15° to 0.25°
- Thrust angle: 0°
- Track width: 1580 mm
Note: Proper alignment is critical for maintaining handling precision and tire longevity.
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Component Specifications
Front Suspension
- Type
- Five-link front suspension
- Spring Type
- Coil springs
- Shock ABSorber Type
- Adaptive air suspension
- Stabilizer Bar Diameter
- 25.4 mm
- Track Width
- 1587 mm
- Part Numbers
- Spring: 8W0411105AShock ABSorber: 8W0513029CStabilizer Bar: 8W0411311B
Rear Suspension
- Type
- Five-link rear suspension
- Spring Type
- Coil springs
- Shock ABSorber Type
- Adaptive air suspension
- Stabilizer Bar Diameter
- 22 mm
- Track Width
- 1575 mm
- Part Numbers
- Spring: 8W0511115AShock ABSorber: 8W0513029DStabilizer Bar: 8W0511311A
Adaptive Air Suspension
- System Type
- Audi Adaptive Air Suspension
- Compressor Power
- 400 W
- Pressure Range
- 8-16 bar
- Height Adjustment Range
- 25 mm
- Part Numbers
- Compressor: 8W0907161BControl Module: 8W0907373A
Wheel Alignment
- Front Camber
- -0.5° to -1.0°
- Rear Camber
- -1.5° to -2.0°
- Front Toe
- 0.10° to 0.20°
- Rear Toe
- 0.15° to 0.25°
- Caster Angle
- 7.0° to 7.5°
Suspension Bushings
- Material
- Hydro rubber
- Front Bushing Part Number
- 8W0407699A
- Rear Bushing Part Number
- 8W0507699B
- Durometer Hardness
- 70 Shore A
Suspension Mounts
- Front Mount Part Number
- 8W0412331A
- Rear Mount Part Number
- 8W0512331B
- Mount Material
- Reinforced rubber
- Load Capacity
- 1500 kg
Suspension Links
- Front Upper Link Part Number
- 8W0407698A
- Front Lower Link Part Number
- 8W0407697B
- Rear Upper Link Part Number
- 8W0507698A
- Rear Lower Link Part Number
- 8W0507697B
- Material
- Forged aluminum
Suspension Bolts
- Front Bolt Torque
- 120 Nm
- Rear Bolt Torque
- 140 Nm
- Bolt Material
- Class 10.9 steel
- Bolt Thread Size
- M12 x 1.5
Suspension Safety
- Maximum Load Front
- 1200 kg
- Maximum Load Rear
- 1300 kg
- Maximum Speed With Load
- 250 km/h
- Temperature Range
- -40°C to 120°C
Diagnostic Specifications
- Fault Codes
-
- C104A00
- C104B00
- C104C00
- Diagnostic Tool
- Audi VAS 5054A
- Sensor Check interval
- Every 15,000 km
- System Self Test
- Automatic on ignition
Service Information Service
Detailed service requirements and schedules
- Inspect suspension components for wear
- Check air suspension system for leaks
- Verify wheel alignment settings
Ensure all bolts are torqued to specification
- Replace suspension bushings if necessary
- Lubricate all suspension joints
- Check and replace shock absorbers if needed
Use only Audi-approved lubricants
- Inspect and replace suspension mounts
- Check adaptive air suspension compressor
- Perform full wheel alignment
Replace any worn or damaged components
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of suspension system does the 2018-Present Audi RS4 use?
What type of suspension system does the 2018-Present Audi RS4 use?
The 2018-Present Audi RS4 features a dynamic suspension system with adaptive air suspension. It includes Audi Drive Select, allowing drivers to adjust damping characteristics for comfort, dynamic, or auto modes. The front suspension uses a five-link design, while the rear employs a trapezoidal-link setup, ensuring precise handling and ride comfort.
Q2 What is the ground clearance of the Audi RS4 with adaptive air suspension?
What is the ground clearance of the Audi RS4 with adaptive air suspension?
The ground clearance of the Audi RS4 with adaptive air suspension ranges from 120 mm (4.72 inches) in dynamic mode to 145 mm (5.71 inches) in comfort mode. The system automatically adjusts ride height based on driving conditions and speed.
Q3 Can the suspension be manually adjusted for track use?
Can the suspension be manually adjusted for track use?
Yes, the Audi RS4's adaptive air suspension can be manually lowered by 10 mm (0.39 inches) in dynamic mode for improved handling during track use. This setting reduces body roll and enhances stability at high speeds.
Q4 What is the recommended tire pressure for optimal suspension performance?
What is the recommended tire pressure for optimal suspension performance?
For optimal suspension performance, Audi recommends a tire pressure of 2.4 bar (35 psi) for normal driving conditions. For high-speed driving or heavy loads, the pressure should be increased to 2.7 bar (39 psi) for the front tires and 2.9 bar (42 psi) for the rear tires.
Q5 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 12 months, whichever comes first. This includes checking the air springs, dampers, and bushings for wear and tear. Regular inspections ensure optimal performance 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 RS4 Suspension System Overview
Coming SoonDetailed technical overview of the adaptive air suspension system, including its components and functionality.
Audi Drive Select User Guide
Coming SoonComprehensive guide on using Audi Drive Select to customize suspension settings for different driving conditions.
Suspension Maintenance Checklist
Coming SoonStep-by-step checklist for inspecting and maintaining the Audi RS4 suspension system.
Track Preparation Guide for Audi RS4
Coming SoonDetailed instructions on preparing the Audi RS4 for track use, including suspension adjustments and tire pressure recommendations.
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