Audi Audi S7 2012-2018 Exhaust Specifications
Comprehensive technical specifications for the 2012-2018 Audi S7 exhaust system, including detailed component information, torque values, and performance data.
Overview Specifications
Comprehensive description of the exhaust specifications for the 2012-2018 Audi S7, including key features, measurements, and technical details. This section covers the exhaust system's design, materials, performance characteristics, and maintenance requirements.
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. Each section is labeled with its respective component or system, such as 'Exhaust Manifold,' 'Catalytic Converter,' or 'Muffler Assembly.'
Key Specifications
Exhaust Manifold Torque
25 Nm
Catalytic Converter Diameter
120 mm
Muffler Weight
15.7 kg
Exhaust Pipe Diameter
60 mm
Operating Temperature Range
-40°C to 900°C
Available Specifications
Exhaust Manifold
Details about the exhaust manifold, including its design, materials, and connection points to the engine and catalytic converter.
Exhaust Manifold
Details about the exhaust manifold, including its design, materials, and connection points to the engine and catalytic converter.
Design and Construction
- Cast iron construction for durability and heat resistance
- Integrated heat shields to reduce underhood temperatures
- Four-into-one design for optimal exhaust gas flow
- Flange connection to the cylinder head with M10 bolts
- Operating temperature range: -40°C to 900°C
Performance Specifications
- Flow rate: 120 CFM at 0.5 psi pressure drop
- Internal diameter: 45 mm
- Wall thickness: 4 mm
- Weight: 8.5 kg
Note: Ensure proper torque specifications (25 Nm) when installing the manifold bolts to prevent leaks.
Catalytic Converter
Technical details about the catalytic converter, including its emissions control capabilities, materials, and integration with the exhaust system.
Catalytic Converter
Technical details about the catalytic converter, including its emissions control capabilities, materials, and integration with the exhaust system.
Emissions Control
- Three-way catalytic converter for CO, NOx, and HC reduction
- Ceramic honeycomb substrate with 400 cells per square inch
- Platinum, palladium, and rhodium coating for catalytic efficiency
- Oxygen sensor integration for real-time emissions monitoring
- Compliance with Euro 6 emissions standards
Physical Specifications
- Overall length: 400 mm
- Diameter: 120 mm
- Weight: 12.3 kg
- Operating temperature: 400°C to 800°C
Note: Avoid impact damage to the ceramic substrate, as it can lead to reduced efficiency.
Muffler Assembly
Information about the muffler assembly, including its noise reduction capabilities, materials, and mounting configuration.
Muffler Assembly
Information about the muffler assembly, including its noise reduction capabilities, materials, and mounting configuration.
Noise Reduction
- Chambered design for effective sound dampening
- Stainless steel construction for corrosion resistance
- Dual exhaust tips with a diameter of 90 mm
- Sound pressure level reduction: 20 dB at 3000 RPM
- Integrated resonator for mid-range frequency cancellation
Mounting and Dimensions
- Overall length: 800 mm
- Width: 300 mm
- Height: 200 mm
- Weight: 15.7 kg
- Rubber isolators for vibration damping
Note: Ensure proper alignment of the muffler during installation to avoid contact with the underbody.
Exhaust Pipes
Details about the exhaust pipes, including their routing, materials, and connection points.
Exhaust Pipes
Details about the exhaust pipes, including their routing, materials, and connection points.
Routing and Configuration
- Dual exhaust system with symmetrical routing
- Mandrel-bent pipes for smooth airflow
- Connection points: manifold to catalytic converter, catalytic converter to muffler
- Total system length: 3.2 meters
Material and Specifications
- 304 stainless steel construction
- Wall thickness: 1.5 mm
- Diameter: 60 mm
- Operating temperature range: -40°C to 700°C
Note: Inspect for cracks or corrosion during routine maintenance to ensure longevity.
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Component Specifications
General Specifications
- Material
- Stainless Steel
- System Type
- Dual Exhaust
- Configuration
- Quad-Tip
- Emission Standard
- Euro 6
- Part Number
- 4G0253600A
Exhaust Manifold
- Material
- Cast Iron
- Bolt Torque
- 25 Nm
- Gasket Part Number
- 06E131547B
- Heat Shield Material
- Aluminum
- Heat Shield Thickness
- 1.5 mm
Catalytic Converter
- Type
- Three-Way Catalytic Converter
- Material
- Ceramic Substrate
- Cell Density
- 600 cells per square inch
- Part Number
- 4G0254100C
- Operating Temperature
- 400-800°C
- Efficiency
- >95%
Resonator
- Material
- Stainless Steel
- Diameter
- 100 mm
- Length
- 400 mm
- Part Number
- 4G0252600D
- Mounting Type
- Rubber Hangers
Muffler
- Material
- Stainless Steel
- Diameter
- 120 mm
- Length
- 600 mm
- Part Number
- 4G0253100E
- Sound Level
- 72 dB at 3000 RPM
- Mounting Type
- Rubber Hangers
Exhaust Pipes
- Material
- Stainless Steel
- Diameter
- 70 mm
- Wall Thickness
- 1.5 mm
- Flex Pipe Length
- 150 mm
- Flex Pipe Material
- Stainless Steel Braided
Oxygen Sensors
- Type
- Wideband Lambda Sensor
- Part Number
- 06E906262B
- Operating Temperature
- -40 to 900°C
- Voltage Range
- 0.1-5.0 V
- Response Time
- <100 ms
Exhaust Tips
- Material
- Polished Stainless Steel
- Diameter
- 90 mm
- Length
- 150 mm
- Finish
- Chrome
- Part Number
- 4G0253800F
Mounting System
- Hanger Material
- Rubber
- Hanger Quantity
- 6
- Bolt Torque
- 20 Nm
- Bracket Material
- Stainless Steel
- Bracket Thickness
- 2 mm
Emission Control
- System Type
- EGR with DPF
- Particulate Filter Part Number
- 4G0254100D
- Egr Cooler Part Number
- 06E131501H
- Operating Pressure
- 1.5 bar
- Temperature Range
- 200-600°C
Service Information Service
Detailed service requirements and schedules for the exhaust system
- Inspect exhaust system for leaks
- Check mounting hangers and brackets
- Inspect oxygen sensors for proper operation
Replace oxygen sensors if fault codes are present
- Inspect catalytic converter for damage
- Check exhaust tips for corrosion
- Inspect resonator and muffler for integrity
Replace any damaged components to maintain emission standards
- Replace oxygen sensors
- Inspect and clean particulate filter
- Check EGR system for proper operation
Perform emission system diagnostic scan
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the exhaust system configuration for the 2012-2018 Audi S7?
What is the exhaust system configuration for the 2012-2018 Audi S7?
The 2012-2018 Audi S7 features a dual exhaust system with quad tailpipes. It includes two catalytic converters, two resonators, and two mufflers. The system is designed to optimize exhaust flow and reduce backpressure, enhancing performance and sound quality.
Q2 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 2012-2018 Audi S7 have an outer diameter of 70 mm (2.75 inches). The tailpipes are 90 mm (3.54 inches) in diameter, providing a balanced flow and aesthetic appeal.
Q3 Does the Audi S7 exhaust system include a valved exhaust option?
Does the Audi S7 exhaust system include a valved exhaust option?
Yes, the Audi S7 is equipped with an optional sport exhaust system that includes electronically controlled exhaust valves. These valves adjust the exhaust note and flow based on driving mode, providing a quieter tone in Comfort mode and a more aggressive sound in Dynamic mode.
Q4 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 from high-quality stainless steel, which provides excellent corrosion resistance and durability. The tailpipes are finished with a polished chrome or black chrome coating, depending on the trim and options selected.
Q5 How often should the exhaust system be inspected?
How often should the exhaust system be inspected?
Audi recommends inspecting the exhaust system every 15,000 miles or during routine maintenance intervals. Check for signs of corrosion, leaks, or damage to the catalytic converters, mufflers, and hangers. Early detection of issues can prevent costly repairs.
Q6 Can aftermarket exhaust systems void the Audi S7 warranty?
Can aftermarket exhaust systems void the Audi S7 warranty?
Installing an aftermarket exhaust system may void the warranty if it causes damage to other components or is not compliant with Audi's specifications. Always consult your dealer or an authorized service center before making modifications to ensure warranty compliance.
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 Maintenance Guide
Coming SoonA detailed guide on maintaining and inspecting the exhaust system, including common issues and troubleshooting tips.
Audi Genuine Parts Catalog
Coming SoonAccess the official Audi parts catalog to find genuine exhaust components for the 2012-2018 S7.
Audi S7 Sport Exhaust System Overview
Coming SoonLearn about the optional sport exhaust system, including its features, benefits, and installation process.
Audi Warranty and Modification Policy
Coming SoonUnderstand how modifications, including exhaust system changes, can impact your vehicle's warranty coverage.
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Technical Information
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