Audi Audi A3 2013-2020 Exhaust Specifications
Audi Audi A3 2013-2020

Audi Audi A3 2013-2020 Exhaust Specifications

Detailed technical specifications and documentation for the 2013-2020 Audi A3 exhaust system. Learn about components, torque specs, maintenance, and repair procedures specific to the Audi A3.

Updated

Exhaust System Specifications Specifications

This document provides a comprehensive overview of the exhaust system specifications for the 2013-2020 Audi A3. It includes detailed technical information, key components, and reference data for service, repair, and maintenance. Use the search functionality to find specific details or navigate through the sections to explore the exhaust system's design, functionality, and performance metrics.

How to Use

To find specific information, use the search bar at the top of the document. Enter keywords such as 'muffler', 'catalytic converter', or 'exhaust pipe' to quickly locate relevant sections.

Navigate through the document by scrolling through the sections. Each major section is divided into subsections with detailed technical points. Use the table of contents or section headers to quickly jump to the desired part.

Key Specifications

Muffler Type

Dual-chamber muffler

Catalytic Converter Cell Density

400-600 cells per square inch

Tailpipe Diameter

90mm

Emissions Standard

Euro 5 and Euro 6 compliant

Exhaust System Material

Stainless steel and aluminized steel

Available Specifications

Exhaust System Overview

This section provides a general overview of the Audi A3 exhaust system, including its key components, materials, and design features. It serves as a starting point for understanding the system's layout and functionality.

Key Components
  • Muffler and tailpipe assembly
  • Catalytic converter
  • Exhaust manifold
  • Downpipe
  • Exhaust pipes and mounting brackets
Materials and Construction
  • Stainless steel used for durability and corrosion resistance
  • Aluminized steel for heat resistance
  • High-temperature-resistant coatings
  • Welded joints for strength and leaks prevention
Emissions Compliance
  • Designed to meet Euro 5 and Euro 6 emissions standards
  • Integrated catalytic converter for reduced emissions
  • Particulate filter (on diesel models)
  • EGR (Exhaust Gas Recirculation) system

Muffler and Tailpipe

This section details the specifications and features of the muffler and tailpipe components, including their design, materials, and performance characteristics.

Muffler Design and Features
  • Dual-chamber muffler design for reduced backpressure
  • Internal baffles for sound dampening
  • High-flow exhaust system for improved performance
  • Heat shields to protect surrounding components
Tailpipe Specifications
  • Dual exhaust outlets on select models
  • Chrome-plated tailpipe tips
  • 90mm diameter tailpipe on most models
  • Integrated exhaust valve for dynamic sound control

Catalytic Converter

This section provides detailed information about the catalytic converter, including its function, design, and specifications.

Function and Performance
  • Reduces harmful emissions (CO, HC, NOx)
  • High-efficiency catalyst for optimal performance
  • Integrated oxygen sensor for real-time monitoring
  • Durable construction for long service life
Design and Specifications
  • Monolithic honeycomb catalyst substrate
  • Ceramic or metallic core depending on model year
  • Heat-resistant shielding to prevent thermal damage
  • OEM-rated flow capacity for optimal engine performance

Exhaust Pipes and Mounts

This section covers the specifications and features of the exhaust pipes and mounting system, including materials, sizes, and installation details.

Exhaust Pipe Specifications
  • 2.5-inch diameter exhaust pipes on most models
  • Flexible sections to accommodate movement and heat expansion
  • Aluminized steel construction for durability
  • Mandrel-bent tubing for smooth flow
Mounting System
  • Rubber mounts for vibration isolation
  • Stainless steel hangers for corrosion resistance
  • Adjustable brackets for precise alignment
  • Heat-resistant bushings for long-term durability

After-Treatment System

This section provides information about the after-treatment system, including diesel particulate filters and selective catalytic reduction (SCR) components.

Diesel Particulate Filter (DPF)
  • Integrated into the exhaust system on diesel models
  • Cordierite or silicon carbide substrate
  • Regeneration cycle for filter cleaning
  • Sensors for monitoring particulate levels
Selective Catalytic Reduction (SCR)
  • Used on diesel models for NOx reduction
  • Incorporates urea injection system
  • Catalyst coated with base metals
  • Integrated control module for system management

Component Specifications

Overview

Type
dual exhaust system
Configuration
rear-mounted
Platform
Volkswagen Group A platform
Material
aluminized steel
Location
under rear axle

Dimensions

Exhaust Pipe Diameter
2.5 inches (63.5 mm)
Muffler Length
24 inches (610 mm)
Muffler Width
10 inches (254 mm)
Tailpipe Length
12 inches (305 mm)
Exhaust Tip Diameter
3 inches (76.2 mm)
Exhaust System Weight
45 lbs (20.4 kg)

Materials

Exhaust Pipes
aluminized steel
Muffler
stainless steel
Catalytic Converter
ceramic honeycomb with platinum coating
Exhaust Tip
chrome-plated stainless steel

Features

Performance Features
  • reduced backpressure
  • improved engine efficiency
  • enhanced exhaust flow
  • optimized for turbocharged engines
Durability Features
  • corrosion-resistant coating
  • high-temperature resistant materials
  • welded joints
  • durable mounting brackets
Sound Features
  • noise-reducing muffler design
  • low exhaust note
  • minimal resonance
  • sound-dampening insulation
Emissions Features
  • EPA compliant
  • Euro 5 emissions standard
  • catalytic converter efficiency
  • exhaust gas recirculation (EGR)

Safety Features

Heat Protection
  • heat shields for undercarriage
  • insulated exhaust components
  • protected wiring harness
Gas Flow Safety
  • properly vented system
  • no leaks or cracks
  • secure connections
Mounting Safety
  • reinforced mounting points
  • sturdy hangers
  • secure clamps

Comfort Features

Noise Reduction
  • acoustic insulation
  • sound-absorbing materials
  • tuned exhaust system
Vibration Reduction
  • flexible couplers
  • vibration-dampening mounts
  • balanced system design
Ease Of Maintenance
  • accessible components
  • removable heat shields
  • easy-to-inspect joints
Durable Components
  • long-lasting materials
  • resistant to road debris
  • weather-sealed connections

Accessories

Exhaust Accessories
  • stainless steel exhaust tips
  • performance mufflers
  • exhaust system heat shields
  • exhaust pipe repair kits
Mounting Accessories
  • replacement exhaust hangers
  • exhaust mounting brackets
  • rubber exhaust isolators
Appearance Accessories
  • chrome exhaust tips
  • carbon fiber exhaust trim
  • exhaust system coatings

Maintenance

Service interval
every 15,000 miles or 12 months
Service Items
  • inspect exhaust system for leaks
  • check exhaust mounts and hangers
  • clean or replace spark arrestor
  • inspect catalytic converter efficiency
  • check exhaust gas recirculation system
Maintenance Notes
Recommended to use OEM or equivalent parts. Avoid using harsh chemicals for cleaning.

Warranty

Basic Warranty
Miles: 48,000 miles
Years: 4 years
Coverage: exhaust system components
Powertrain Warranty
Miles: 70,000 miles
Years: 5 years
Coverage: catalytic converter and muffler
Emissions Warranty
Miles: 80,000 miles
Years: 8 years
Coverage: catalytic converter and EGR system
Corrosion Warranty
Miles: unlimited
Years: 12 years
Coverage: corrosion perforation of exhaust components

Production Details

Manufacturer
Audi AG
Manufacturing Process
  • robotic welding
  • laser cutting
  • high-temperature coating application
  • precision assembly
Quality Control
inspection: 100% visual inspection
Testing: leak testing and backpressure testing
Certification: ISO 9001 certified
Sustainability Practices
  • recyclable materials used
  • low-emission manufacturing process
  • energy-efficient production
Production Metrics
Annual Production: 200,000 units
Production Cycle: 4 hours per unit
Quality Rating: 99.8% defect-free rate

Service Information for exhaust Service

Maintenance and service requirements specific to this component

15,000 miles
12 months
  • Inspect exhaust system for leaks
  • Check exhaust mounts and hangers
  • Clean or replace spark arrestor
  • Inspect catalytic converter efficiency
  • Check exhaust gas recirculation system

Perform visual inspection and basic cleaning if necessary.

30,000 miles
24 months
  • Replace exhaust system gaskets
  • Inspect and tighten exhaust clamps
  • Check for rust or corrosion
  • Test backpressure levels
  • Inspect muffler and tailpipe condition

Recommended to use torque wrench for clamp tightening.

60,000 miles
48 months
  • Inspect catalytic converter performance
  • Replace exhaust system heat shields if damaged
  • Check EGR system function
  • Inspect exhaust system welds
  • Perform emissions system test

Special tools may be required for emissions testing.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the diameter of the exhaust pipe for the 2013-2020 Audi A3?

The exhaust pipe diameter for the 2013-2020 Audi A3 varies by engine type. For the 2.0L TFSI engine, the diameter is 60mm, while the 1.8L TFSI engine uses a 55mm diameter. Always verify the specific engine configuration before ordering replacement parts.

Q2

What type of catalytic converter is used in the 2013-2020 Audi A3?

The 2013-2020 Audi A3 is equipped with a three-way catalytic converter with an integrated oxygen sensor. It is designed to reduce emissions of CO, NOx, and hydrocarbons, meeting Euro 6 emission standards. The converter is made of stainless steel for durability.

Q3

Can I install an aftermarket exhaust system without voiding the warranty?

Installing an aftermarket exhaust system may void your warranty if it is not approved by Audi or if it causes damage to other components. Always consult your dealer or warranty documentation before making modifications. Genuine Audi parts are recommended to maintain warranty coverage.

Q4

What is the recommended service interval for the exhaust system?

Audi recommends inspecting the exhaust system every 15,000 miles or 12 months, whichever comes first. This includes checking for leaks, corrosion, and proper mounting. Replace worn or damaged components immediately to avoid further issues.

Q5

How do I identify a failing oxygen sensor in the exhaust system?

A failing oxygen sensor may trigger the check engine light, cause poor fuel economy, or result in irregular engine performance. Diagnostic trouble codes (DTCs) such as P0130 or P0135 indicate sensor issues. Use an OBD-II scanner to confirm and replace the sensor as needed.

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 A3 Exhaust System Maintenance Guide

Coming Soon

Detailed guide on inspecting, maintaining, and replacing components of the Audi A3 exhaust system, including torque specifications and safety precautions.

OEM Exhaust Parts Catalog

Coming Soon

Official catalog of genuine Audi exhaust components, including part numbers, diagrams, and compatibility information for the 2013-2020 A3.

Exhaust System Troubleshooting Manual

Coming Soon

Step-by-step troubleshooting guide for common exhaust system issues, such as leaks, rattling, and emission-related problems.

Audi Warranty and Modification Policy

Coming Soon

Official documentation outlining Audi's warranty terms and conditions, including the impact of aftermarket modifications on warranty coverage.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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