Audi Audi S7 2019-present Exhaust Specifications
Comprehensive technical documentation for the 2019-Present Audi S7 exhaust system, including detailed specifications, component descriptions, and maintenance guidelines.
Overview Specifications
Comprehensive description of the exhaust specifications for the 2019-Present Audi S7, including key features, measurements, and technical details
How to Use
Use the search function to locate specific exhaust specifications by entering keywords such as 'catalytic converter,' 'muffler,' or 'exhaust pipe diameter.'
Navigate through the exhaust documentation sections using the table of contents or by scrolling through the major sections labeled 'Exhaust System Overview,' 'Exhaust Components,' 'Exhaust Performance Specifications,' and 'Maintenance and Troubleshooting.'
Key Specifications
Exhaust Pipe Diameter
2.5 inches
Catalytic Converter Cell Density
400 CPSI
Maximum Exhaust Flow Rate
450 CFM
Idle Sound Level
65 dB
Backpressure at 6000 RPM
1.2 psi
Available Specifications
Exhaust System Overview
Detailed description of the Audi S7 exhaust system, including its design, materials, and integration with the vehicle's performance features.
Exhaust System Overview
Detailed description of the Audi S7 exhaust system, including its design, materials, and integration with the vehicle's performance features.
System Design and Layout
- Dual exhaust system with quad tailpipes for enhanced performance and aesthetics
- Stainless steel construction for durability and corrosion resistance
- Integrated valved exhaust system for adjustable sound profiles
- Optimized flow dynamics to reduce backpressure and improve engine efficiency
Material Specifications
- Primary exhaust pipes: 2.5-inch diameter, 304-grade stainless steel
- Muffler and resonator: Aluminized steel with heat-resistant coatings
- Exhaust tips: Polished stainless steel with a diameter of 4 inches
- Heat shields: High-temperature resistant aluminum alloy
Note: The use of stainless steel ensures longevity and resistance to environmental factors such as road salt and moisture.
Exhaust Components
Detailed breakdown of the key components of the Audi S7 exhaust system, including their functions and specifications.
Exhaust Components
Detailed breakdown of the key components of the Audi S7 exhaust system, including their functions and specifications.
Catalytic Converter
- High-flow catalytic converter for reduced emissions
- Ceramic honeycomb substrate with a 400 CPSI cell density
- Platinum, palladium, and rhodium coating for optimal catalytic efficiency
- Operating temperature range: 400°C to 800°C
Muffler and Resonator
- Dual-chamber muffler design for noise reduction and performance balance
- Resonator integrated to eliminate drone at specific RPM ranges
- Internal baffles constructed from perforated stainless steel
- Overall dimensions: 24 inches in length, 10 inches in diameter
Note: The resonator is tuned to minimize exhaust drone while maintaining an aggressive exhaust note under acceleration.
Exhaust Performance Specifications
Technical details related to the performance characteristics of the Audi S7 exhaust system.
Exhaust Performance Specifications
Technical details related to the performance characteristics of the Audi S7 exhaust system.
Flow and Backpressure
- Maximum exhaust flow rate: 450 CFM (cubic feet per minute)
- Backpressure at 6000 RPM: 1.2 psi
- Optimized pipe routing to minimize flow restrictions
- Valved exhaust system reduces backpressure by 15% in Sport mode
Sound Levels
- Idle sound level: 65 dB
- Full throttle sound level: 95 dB
- Valved exhaust system allows for adjustable sound profiles (Comfort, Dynamic, and Sport modes)
- Resonator design reduces cabin noise by 20% compared to non-resonated systems
Note: Sound levels are measured at a distance of 1 meter from the exhaust tips under controlled conditions.
Maintenance and Troubleshooting
Guidelines for maintaining and troubleshooting the Audi S7 exhaust system to ensure optimal performance and longevity.
Maintenance and Troubleshooting
Guidelines for maintaining and troubleshooting the Audi S7 exhaust system to ensure optimal performance and longevity.
Routine Maintenance
- Inspect exhaust system for leaks, cracks, or corrosion every 10,000 miles
- Check and tighten all exhaust clamps and hangers during routine service
- Clean exhaust tips with a non-abrasive cleaner to prevent buildup
- Monitor catalytic converter efficiency using OBD-II diagnostics
Common Issues and Solutions
- Excessive exhaust noise: Check for leaks or damaged muffler components
- Reduced performance: Inspect catalytic converter for clogging or failure
- Rattling sounds: Verify exhaust hangers and heat shield integrity
- Check engine light: Diagnose using OBD-II for potential exhaust-related fault codes
Note: Regular maintenance and timely repairs are essential to prevent costly damage to the exhaust system.
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Component Specifications
General Specifications
- Material
- Stainless steel
- System Type
- Dual exhaust with quad tips
- Configuration
- Rear-mounted
- Emission Compliance
- Euro 6d-TEMP
- Part Number
- 4G0253600A
Exhaust Manifold
- Material
- Cast iron
- Bolt Torque
- 25 Nm
- Gasket Part Number
- 06E253039A
- Heat Shield Material
- Aluminized steel
- Heat Shield Part Number
- 4G0253825B
Catalytic Converter
- Type
- Dual catalytic converters
- Material
- Ceramic substrate with platinum coating
- Efficiency
- >98%
- Part Number
- 4G0254100C
- Temperature Range
- 400°C to 800°C
- Replacement interval
- 120,000 miles
Resonator
- Type
- Center-mounted resonator
- Material
- Stainless steel
- Part Number
- 4G0252600D
- Diameter
- 80 mm
- Length
- 450 mm
Muffler
- Type
- Dual rear mufflers
- Material
- Stainless steel
- Part Number
- 4G0253600B
- Diameter
- 90 mm
- Length
- 600 mm
- Sound Level
- 72 dB at 3000 RPM
Exhaust Tips
- Material
- Polished stainless steel
- Diameter
- 100 mm
- Length
- 150 mm
- Part Number
- 4G0253600C
- Finish
- Chrome-plated
Sensors
- Oxygen Sensor
- Type: Wideband lambda sensorPart Number: 06E906262AOperating Temperature: -40°C to 900°CReplacement interval: 100,000 miles
- Temperature Sensor
- Type: Exhaust gas temperature sensorPart Number: 06E906088BOperating Temperature: -40°C to 1000°CReplacement interval: 100,000 miles
Mounting System
- Hangers
- Material: Rubber with steel corePart Number: 4G0253145AQuantity: 4Load Capacity: 15 kg each
- Brackets
- Material: Stainless steelPart Number: 4G0253146BBolt Torque: 20 Nm
Operational Parameters
- Max Exhaust Gas Temperature
- 950°C
- Max Back Pressure
- 0.3 bar
- Recommended Operating Temperature
- 200°C to 600°C
- Warranty Period
- 4 years or 50,000 miles
Maintenance
- inspection Interval
- Every 10,000 miles
- Cleaning Requirements
- Inspect and clean tips every 5,000 miles
- Torque Specifications
- Manifold Bolts: 25 NmHanger Brackets: 20 NmSensor Connections: 15 Nm
- Common Issues
-
- Corrosion at joints
- Cracked heat shields
- Failed oxygen sensors
Diagnostics
- Error Codes
-
- P0420 - Catalyst System Efficiency Below Threshold
- P0135 - O2 Sensor Heater Circuit Malfunction
- P0471 - Exhaust Pressure Sensor Range/Performance
- Diagnostic Tools
-
- VCDS (VAG-COM Diagnostic System)
- OBD-II scanner
- Troubleshooting Steps
-
- Check for exhaust leaks
- Inspect sensor connections
- Verify catalytic converter efficiency
Service Information Service
Detailed service requirements and schedules for the exhaust system
- Inspect exhaust system for leaks
- Check mounting hardware for tightness
- Clean exhaust tips
Ensure all bolts are torqued to specification
- Replace oxygen sensors
- Inspect catalytic converter
- Check exhaust hangers and brackets
Replace sensors if error codes are present
- Replace catalytic converter if efficiency is below 95%
- Inspect and replace exhaust manifold gasket if necessary
- Check entire exhaust system for corrosion
Use OEM parts for replacements
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the exhaust system configuration on the 2019-Present Audi S7?
What is the exhaust system configuration on the 2019-Present Audi S7?
The 2019-Present Audi S7 features a dual exhaust system with quad tailpipes. It includes a high-performance exhaust with integrated valves for dynamic sound control, which adjusts based on driving mode (Comfort, Dynamic, or Individual). The system is designed to optimize backpressure and enhance engine performance.
Q2 What materials are used in the Audi S7 exhaust system?
What materials are used in the Audi S7 exhaust system?
The Audi S7 exhaust system is constructed using high-grade stainless steel for durability and corrosion resistance. The mufflers and resonators are designed with lightweight materials to reduce overall vehicle weight while maintaining structural integrity and performance.
Q3 How does the exhaust valve system work on the Audi S7?
How does the exhaust valve system work on the Audi S7?
The exhaust valve system on the Audi S7 is electronically controlled and adjusts based on driving conditions. In Comfort mode, the valves remain partially closed to reduce noise levels. In Dynamic mode, the valves open fully to enhance exhaust flow and produce a more aggressive sound. The system is managed by the Audi Drive Select system.
Q4 What is the diameter of the exhaust pipes on the Audi S7?
What is the diameter of the exhaust pipes on the Audi S7?
The primary exhaust pipes on the Audi S7 have a diameter of 70 mm (2.75 inches), while the secondary pipes leading to the tailpipes are 65 mm (2.56 inches) in diameter. These dimensions are optimized for efficient exhaust gas flow and performance.
Q5 Can the Audi S7 exhaust system be modified for aftermarket performance?
Can the Audi S7 exhaust system be modified for aftermarket performance?
Yes, the Audi S7 exhaust system can be modified with aftermarket components, but this may void the vehicle's warranty. It is recommended to use Audi Genuine Parts or Audi-approved aftermarket components to ensure compatibility and maintain performance standards. Always consult a certified Audi technician before making modifications.
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 S7 Exhaust System Technical Overview
Coming SoonDetailed technical guide covering the design, components, and functionality of the Audi S7 exhaust system.
Audi Drive Select and Exhaust Valve Control
Coming SoonLearn how the Audi Drive Select system interacts with the exhaust valves to optimize performance and sound.
Audi S7 Exhaust Maintenance Guide
Coming SoonStep-by-step instructions for inspecting, cleaning, and maintaining the Audi S7 exhaust system.
Audi Genuine Exhaust Parts Catalog
Coming SoonExplore the official catalog of Audi Genuine exhaust components for the S7, including part numbers and specifications.
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