Audi Audi A7 2018-present Exhaust Specifications
Comprehensive technical specifications for the 2018-Present Audi A7 exhaust system, including detailed diagrams, torque settings, and emission compliance details.
Exhaust System Specifications Specifications
This document provides detailed specifications and technical information about the exhaust system of the 2018-Present Audi A7. It is designed to assist technicians, enthusiasts, and owners in understanding the components, performance characteristics, and maintenance requirements of the vehicle's exhaust system. Use the sections below to navigate through the document and find specific information.
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Key Specifications
Exhaust System Type
Dual exhaust with twin tailpipes
Material
High-grade stainless steel
Pipe Diameter
2.5 inches (63.5 mm)
Emissions Standard
Euro 6 compliant
Sound Level
75 dB(A) at 4,000 RPM
Available Specifications
Overview
This section provides a general overview of the Audi A7's exhaust system, including its design, materials, and key features.
Overview
This section provides a general overview of the Audi A7's exhaust system, including its design, materials, and key features.
Exhaust System Design
- Dual exhaust system with twin tailpipes
- Made from high-grade stainless steel for durability and corrosion resistance
- Features a muffler with internal chambers to reduce noise
- Includes a resonator to enhance exhaust note quality
- Integrated catalytic converter for emissions control
- Adaptive exhaust valves for variable sound control
Materials and Construction
- Stainless steel construction for long lifespan
- Welded joints for strength and leak resistance
- High-temperature resistant materials used throughout
- Lightweight design to improve fuel efficiency
- Corrosion-resistant coating applied to all components
- Precision-engineered for optimal performance
Components
This section details the individual components of the exhaust system, including mufflers, catalytic converters, and tailpipes.
Components
This section details the individual components of the exhaust system, including mufflers, catalytic converters, and tailpipes.
Mufflers and Resonators
- Two mufflers with internal baffles for sound reduction
- Resonator chamber tuned for optimal exhaust note
- Mufflers are insulated to reduce heat transfer
- Resonator is positioned before the muffler for sound tuning
- Both mufflers and resonator are stainless steel
- Designed for minimal backpressure
Tailpipes and Tips
- Twin oval-shaped tailpipes
- Tailpipe tips made from polished stainless steel
- Tips are chrome-plated for a premium appearance
- Tailpipes are angled for aesthetic appeal
- Internal baffles in tailpipes for sound control
- Heat shields protect surrounding components
Performance
This section outlines the performance characteristics of the exhaust system, including flow rates, sound levels, and emissions compliance.
Performance
This section outlines the performance characteristics of the exhaust system, including flow rates, sound levels, and emissions compliance.
Flow Characteristics
- Free-flow design for maximum exhaust gas flow
- Optimized piping diameter for performance
- Smooth bends and transitions reduce turbulence
- Minimal backpressure for improved engine efficiency
- Engineered for consistent performance across RPM range
- Adaptive exhaust valves adjust flow dynamically
Sound Levels and Tuning
- Active sound control system
- Variable exhaust valve operation
- Refined exhaust note under normal driving
- Sportier sound during aggressive driving
- Sound levels comply with international regulations
- Customizable sound settings through Audi Drive Select
Emissions
This section covers the emissions-related aspects of the exhaust system, including catalytic converters and emissions control technologies.
Emissions
This section covers the emissions-related aspects of the exhaust system, including catalytic converters and emissions control technologies.
Emission Control Technologies
- High-efficiency catalytic converter
- Selective catalytic reduction (SCR) system
- Diesel particulate filter (DPF) for diesel models
- Exhaust gas recirculation (EGR) system
- Advanced emissions sensors and monitoring
- Compliant with Euro 6 and ULEV standards
Compliance and Certification
- Meets or exceeds all applicable emissions standards
- Certified for use in all 50 states in the US
- Compliant with EU emissions regulations
- Tested and validated for durability and performance
- Regular maintenance required to ensure compliance
- Emissions system covered under factory warranty
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Component Specifications
Overview
- Type
- Dual Exhaust System
- Configuration
- Rear Muffler with Dual Tips
- Platform
- MLB Evo
- Material
- Stainless Steel
- Location
- Dual Rear Exit
Dimensions
- Overall Length
- Approx. 150 inches (3810 mm)
- Muffler Dimensions
- 12 inches (305 mm) x 8 inches (203 mm) x 20 inches (508 mm)
- Tip Diameter
- 3.5 inches (88.9 mm)
- Catalytic Converter Size
- 6 inches (152 mm) diameter x 12 inches (305 mm) length
- Exhaust Pipe Diameter
- 2.5 inches (63.5 mm)
- System Weight
- Approx. 60 lbs (27 kg)
- Heat Shield Dimensions
- 20 inches (508 mm) x 12 inches (305 mm)
Materials
- Muffler
- High-grade stainless steel
- Exhaust Pipes
- Stainless steel with aluminized coating
- Catalytic Converter
- Ceramic honeycomb with platinum and palladium
- Exhaust Tips
- Polished stainless steel
- Heat Shield
- Carbon steel with heat-resistant coating
Features
- Noise Reduction
-
- Internal baffling
- Sound-dampening chambers
- Asymmetric muffler design
- Performance Enhancement
-
- Straight-through design
- Free-flowing catalytic converter
- Optimized pipe routing
- Durability
-
- Corrosion-resistant coatings
- Welded joints
- High-temperature resistant materials
- Emissions Control
-
- Catalytic converter
- Oxygen sensor integration
- Emissions reduction technology
- Visual Design
-
- Chrome-plated tips
- Sleek, integrated design
- Aerodynamic positioning
Safety Features
- Heat Management
-
- Heat shields
- Thermal insulation
- Temperature-resistant materials
- Structural integrity
- High-strength welds and joints
- Emissions Compliance
- Meets Euro 6 standards
- Corrosion Protection
- Aluminized and stainless steel components
Comfort Features
- Noise Reduction
-
- Acoustic insulation
- Balanced exhaust flow
- Frequency-tuned muffling
- Smooth Operation
-
- Even exhaust gas flow
- Low backpressure
- Linear power delivery
- Driver Experience
- Refined exhaust note
Accessories
- Performance Upgrades
-
- High-flow catalytic converter
- Sport muffler
- Exhaust tuning
- Styling Enhancements
-
- Black chrome tips
- Carbon fiber tips
- Custom tip designs
- Sound Modifications
-
- Active exhaust valves
- Exhaust sound tuning
- Resonance chambers
Maintenance
- Service interval
- Every 15,000 miles (24,140 km) or 12 months
- Items To Check
-
- Exhaust system leaks
- Muffler condition
- Catalytic converter efficiency
- Exhaust pipe integrity
- Heat shield condition
- Maintenance Notes
- Inspect exhaust system for damage or corrosion during regular service intervals.
Warranty
- New Vehicle Warranty
- Miles: UnlimitedYears: 4Coverage: Bumper-to-bumper including exhaust system
- Powertrain Warranty
- Miles: 50,000Years: 4Coverage: Exhaust system components
- Emissions Warranty
- Miles: 80,000Years: 8Coverage: Catalytic converter and emissions control devices
- Corrosion Perforation Warranty
- Miles: UnlimitedYears: 12Coverage: Rust-through of body panels and exhaust components
Production Details
- Manufacturer
- Audi AG
- Manufacturing Process
-
- Robotic welding
- Laser cutting
- Hydroforming
- Catalytic converter coating
- Quality Control
- inspections: Leak testing, Dimensional checks, Material quality verificationCertifications: ISO 9001:2015 and IATF 16949:2016
- Sustainability Practices
-
- Recyclable materials
- Energy-efficient manufacturing
- Emissions reduction in production
- Production Metrics
- Annual Production: Over 10,000 unitsManufacturing Lead Time: Approx. 4 weeksSupplier Network: Global network of 100+ suppliers
Service Information for Exhaust System Service
Maintenance and service requirements specific to the Audi A7 exhaust system
- Inspect exhaust system for leaks
- Check muffler and catalytic converter condition
- Examine exhaust pipes for damage
- Verify heat shield integrity
- Test exhaust system for performance
Recommended during routine maintenance to ensure system integrity and performance.
- Clean or replace oxygen sensor
- Inspect exhaust system mounting points
- Check for rust or corrosion
- Test backpressure
- Evaluate exhaust note quality
Special attention to catalytic converter efficiency and exhaust gas flow.
- Replace catalytic converter if necessary
- Inspect and replace muffler if needed
- Check exhaust pipe flanges and gaskets
- Verify exhaust tip condition
- Perform comprehensive system leak test
Major service interval - critical for maintaining emissions compliance and performance.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the exhaust system configuration for the 2018-Present Audi A7?
What is the exhaust system configuration for the 2018-Present Audi A7?
The 2018-Present Audi A7 features a dual exhaust system with two tailpipes, each measuring 3.5 inches in diameter. The system includes a catalytic converter, muffler, and resonator, designed to optimize exhaust flow and reduce backpressure. The system is constructed from stainless steel for durability and corrosion resistance.
Q2 What is the recommended maintenance schedule for the Audi A7 exhaust system?
What is the recommended maintenance schedule for the Audi A7 exhaust system?
Audi recommends inspecting the exhaust system every 15,000 miles or 12 months, whichever comes first. Key checks include inspecting for leaks, corrosion, and ensuring all mounting points are secure. The catalytic converter should be checked for proper function, and the oxygen sensors should be tested for accuracy.
Q3 Can I replace the Audi A7 exhaust system with an aftermarket option?
Can I replace the Audi A7 exhaust system with an aftermarket option?
While aftermarket exhaust systems are available, Audi strongly recommends using genuine OEM parts to ensure compatibility and performance. Aftermarket systems may void the vehicle's warranty and could affect emissions compliance. Always consult with an authorized Audi service center before making modifications.
Q4 What are the torque specifications for the exhaust manifold bolts on the Audi A7?
What are the torque specifications for the exhaust manifold bolts on the Audi A7?
The exhaust manifold bolts on the 2018-Present Audi A7 should be torqued to 22 Nm (16 lb-ft) in a crisscross pattern to ensure even pressure distribution. Over-tightening can lead to gasket failure, while under-tightening may cause exhaust leaks.
Q5 How does the Audi A7 exhaust system handle emissions control?
How does the Audi A7 exhaust system handle emissions control?
The Audi A7 exhaust system includes a high-efficiency catalytic converter and dual oxygen sensors to monitor and control emissions. The system is designed to meet Euro 6 and EPA Tier 3 emissions standards, ensuring compliance with stringent environmental regulations.
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 A7 Exhaust System Service Manual
Coming SoonOfficial Audi service manual detailing the exhaust system components, maintenance procedures, and troubleshooting tips.
Audi Genuine Parts Catalog
Coming SoonCatalog of genuine Audi exhaust system components, including part numbers and compatibility information.
Audi A7 Emissions Compliance Guide
Coming SoonGuide explaining the emissions control systems in the Audi A7 and how to maintain compliance with environmental regulations.
Audi A7 Exhaust System Troubleshooting
Coming SoonStep-by-step guide to diagnosing and resolving common exhaust system issues in the Audi A7.
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