Audi Audi A5 2016-present Emissions & Sensors Specifications
Audi Audi A5 2016-present

Audi Audi A5 2016-present Emissions & Sensors Specifications

Comprehensive technical specifications for the emissions sensors system in the 2016-Present Audi A5. Includes sensor types, diagnostic codes, maintenance, and troubleshooting guides.

Updated

Emissions Sensors Specifications Overview Specifications

This document provides a comprehensive overview of the emissions sensors specifications for the 2016-Present Audi A5. It includes detailed technical information, sensor types, and maintenance guidelines. Use this guide to understand the emissions control systems, sensor specifications, monitoring capabilities, and compliance standards. Navigate through the sections for specific details or refer to the quick reference for key specifications.

How to Use

To search, use the Ctrl+F function to find specific terms within the document. Enter keywords related to emissions sensors, such as 'O2 sensor' or 'particulate matter sensor', to locate relevant information quickly.

Navigate through the sections using the table of contents. Each major section is divided into subsections for easier access. Click on a section title to view its details, including technical specifications and maintenance guidelines.

Key Specifications

Oxygen Sensor Model

Bosch LSU 4.9

Temperature Sensor Model

NTK NTZ-CFS

Particulate Matter Sensor Model

Continental SDZ-DPF

Emissions Standard

Euro 6d-TEMP

Sensor Communication Protocol

CAN bus / LIN bus

Available Specifications

Emissions Control Systems

This section provides an overview of the emissions control systems in the 2016-Present Audi A5, including the role of emissions sensors in monitoring and reducing emissions. It explains how the sensors interact with the engine control module to optimize performance and minimize environmental impact.

Overview of Emissions Sensors
  • Emissions sensors monitor exhaust gases to ensure compliance with emissions standards.
  • They provide real-time data to the engine control module (ECM) for precise fuel injection and emissions control.
  • The system includes oxygen sensors, temperature sensors, and particulate matter sensors.
  • Sensors are strategically located throughout the exhaust system for accurate readings.
Types of Sensors Used
  • Oxygen (O2) sensors measure oxygen levels in the exhaust gases.
  • Temperature sensors monitor exhaust gas temperatures to prevent overheating.
  • Particulate matter (PM) sensors detect soot and particulate emissions in diesel models.
  • Each sensor communicates with the ECM via CAN bus or LIN bus protocols.
System Integration
  • Emissions sensors are integrated with the Audi A5's advanced engine management system.
  • The system adjusts fuel injection, turbo boost, and exhaust gas recirculation based on sensor data.
  • Faulty sensors trigger warning lights and store trouble codes in the ECM for diagnostics.
  • Regular software updates ensure optimal sensor performance and emissions compliance.

Sensor Specifications

This section provides detailed technical specifications for each type of emissions sensor used in the 2016-Present Audi A5. It includes model-specific information, operating ranges, and replacement guidelines.

Oxygen (O2) Sensor Specifications
  • Model: Bosch LSU 4.9 (wide-band O2 sensor).
  • Operating temperature: -40°C to 900°C.
  • Response time: <100 ms for accurate fuel-to-air ratio adjustments.
  • Voltage range: 0.1V to 0.9V for lean to rich mixtures.
  • Replacement interval: Every 100,000 miles or as needed.
Temperature Sensor Specifications
  • Model: NTK NTZ-CFS.
  • Operating temperature: -40°C to 1,000°C.
  • Response time: <50 ms for rapid temperature monitoring.
  • Voltage range: 0V to 5V for analog output.
  • Replacement interval: Every 150,000 miles or as needed.
Particulate Matter (PM) Sensor Specifications
  • Model: Continental SDZ-DPF.
  • Operating temperature: -40°C to 700°C.
  • Response time: <200 ms for real-time soot monitoring.
  • Output: Digital signal via CAN bus.
  • Replacement interval: Every 120,000 miles or as needed.

Monitoring and Maintenance

This section outlines the monitoring capabilities and maintenance requirements for the emissions sensors in the 2016-Present Audi A5. It includes guidelines for sensor replacement, system resets, and troubleshooting common issues.

Real-Time Monitoring Capabilities
  • The Audi A5's ECM continuously monitors sensor performance and data accuracy.
  • Real-time data is displayed through the MMI infotainment system or optional digital instrument cluster.
  • Warnings are issued if sensor readings fall out of specified ranges.
  • The system stores fault codes for diagnostic purposes.
Maintenance and Replacement Guidelines
  • Inspect sensors every 30,000 miles for contamination or damage.
  • Clean sensors only if necessary, using Audi-approved cleaning solutions.
  • Replace sensors if damaged, contaminated, or faulty.
  • After replacement, reset the ECM using an Audi-approved diagnostic tool.

Compliance and Standards

This section covers the emissions compliance standards and certifications for the 2016-Present Audi A5. It explains how the emissions sensors contribute to meeting these standards and the consequences of non-compliance.

Emissions Compliance Overview
  • The Audi A5 complies with Euro 6d-TEMP and EPA Tier 3 Bin 125 standards.
  • Emissions sensors play a critical role in meeting these standards by ensuring precise emissions control.
  • Non-compliance can result in increased emissions, decreased performance, and potential fines.
  • Regular maintenance is essential to maintain compliance.
Certification and Standards
  • All emissions sensors are certified to OEM standards.
  • Sensors must meet or exceed factory specifications for accuracy and reliability.
  • Non-OEM sensors may void the vehicle warranty or cause non-compliance issues.
  • Always use Audi-approved replacement parts.

Component Specifications

Overview

Type
Lambda (Oxygen) Sensor
Configuration
Dual-wire heated
Platform
MQB (Modularer Querbaukasten)
Location
Exhaust system
Communication Protocol
CAN (Controller Area Network)
Fuel Type
Gasoline and Diesel

Dimensions

Length
110 mm
Width
22 mm
Height
40 mm
Mass
150 grams
Thread Size
M18 x 1.5
Electrical Connector Size
6-pin
Operating Temperature Range
-40°C to 900°C

Materials

Sensor Element
Ceramic with platinum tip
Housing
Stainless steel
Electrical Connectors
High-temperature resistant plastic
Wiring
Heat-resistant silicone insulation

Features

Measurement Capabilities
  • Oxygen concentration
  • Exhaust gas temperature
  • Heated element for faster response
  • Self-diagnostics
  • Fail-safe mode
Sensor Types
  • Pre-catalyst
  • Post-catalyst
Communication Protocols
  • CAN
  • LIN (Local Interconnect Network)
Environmental Resistance
  • Heat resistant
  • Waterproof
  • Vibration resistant
Diagnostic Features
  • Fault code generation
  • Real-time data output
  • Sensor health monitoring

Safety Features

Self Diagnostics
  • Internal fault detection
  • Signal plausibility checks
Fault indication
  • MIL (Malfunction Indicator Lamp) activation
  • Error code storage
Protection Features
  • Over-temperature protection
  • Short-circuit protection

Comfort Features

Real Time Monitoring
  • Exhaust gas composition
  • Emissions performance
Driver Feedback
  • Emissions system status
  • Maintenance alerts
integration With Other Systems
  • Engine control module
  • Catalytic converter monitoring

Accessories

installation Kit
  • Mounting bracket
  • Wiring harness
  • Connector
Tools Required
  • Torque wrench
  • OBD-II scanner
  • Multimeter
Optional Accessories
  • Extended wiring harness
  • Additional mounting hardware

Maintenance

Service interval
Every 60,000 miles or 5 years
Items
  • Sensor cleaning
  • Electrical connector inspection
  • Wiring harness check
  • Fault code clearing
  • Software calibration
Notes
Replace sensor if faulty or if resistance is out of specification.

Warranty

Parts Warranty
Miles: 60000
Years: 5
Coverage: Parts only
Labor Warranty
Miles: 60000
Years: 5
Coverage: Labor included
Emissions Warranty
Miles: 150000
Years: 15
Coverage: Emissions-related components
Extended Warranty
Miles: 120000
Years: 10
Coverage: Extended coverage available

Production Details

Manufacturer
Bosch
Manufacturing Process
  • Ceramic element fabrication
  • Sensor assembly
  • Electrical connector attachment
  • Calibration and testing
Quality Control
inspection: 100% bench testing
Certifications: ISO/TS 16949, ISO 14001
Standards: Compliant with EU and EPA regulations
Sustainability Practices
  • Recyclable materials
  • Energy-efficient manufacturing
  • Reduced emissions during production
Production Metrics
Annual Production: 1,000,000 units
Failure Rate: <1%
MTBF: 200,000 miles

Service Information for Emissions Sensors Service

Maintenance and service requirements specific to emissions sensors

30,000
24
  • Inspect sensor connectors and wiring
  • Check sensor resistance
  • Clear any fault codes
  • Test sensor response

Part of routine maintenance; no parts replacement typically needed unless faults are found.

60,000
48
  • Clean sensor elements
  • Inspect catalytic converter efficiency
  • Check exhaust system for leaks
  • Update sensor calibration if necessary

Recommended to use OEM-approved cleaning solutions and tools.

100,000
72
  • Replace oxygen sensors if worn out
  • Inspect and replace wiring harness if damaged
  • Check exhaust system integrity
  • Perform emissions system test

Major service; sensor replacement may be required based on condition.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What types of emissions sensors are used in the 2016-Present Audi A5?

The 2016-Present Audi A5 is equipped with multiple emissions sensors, including the Oxygen (O2) sensor, NOx sensor, and Particulate Matter (PM) sensor. These sensors monitor exhaust gases to ensure compliance with Euro 6 emissions standards. The O2 sensor measures oxygen levels in the exhaust, the NOx sensor detects nitrogen oxides, and the PM sensor monitors soot particles in diesel models.

Q2

How often should emissions sensors be inspected or replaced?

Emissions sensors should be inspected during routine maintenance, typically every 30,000 miles or as specified in the Audi maintenance schedule. Replacement intervals vary by sensor type: O2 sensors generally last 60,000-90,000 miles, while NOx and PM sensors may require replacement sooner if fault codes are detected. Always use genuine Audi parts for replacements.

Q3

What are the symptoms of a failing emissions sensor?

Common symptoms include the illumination of the Check Engine Light (CEL), reduced fuel efficiency, rough idling, and increased emissions. Fault codes such as P0135 (O2 sensor heater circuit malfunction) or P2201 (NOx sensor circuit range/performance) may also appear. Diagnostic tools should be used to confirm sensor issues.

Q4

Can I replace emissions sensors myself, or should I consult a professional?

While some experienced DIYers may replace emissions sensors, it is recommended to consult a certified Audi technician. Proper installation requires specialized tools, such as an OBD-II scanner for diagnostics and a torque wrench for precise installation. Incorrect installation can lead to further damage or void the vehicle's warranty.

Q5

What is the voltage range for the O2 sensor in the Audi A5?

The O2 sensor in the Audi A5 operates within a voltage range of 0.1V (lean mixture) to 0.9V (rich mixture). A properly functioning sensor should fluctuate between these values under normal driving conditions. Consistent readings outside this range may indicate a faulty sensor.

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 Emissions System Overview

Coming Soon

Detailed guide on the emissions control system in the 2016-Present Audi A5, including sensor locations and functions.

O2 Sensor Replacement Guide

Coming Soon

Step-by-step instructions for replacing the O2 sensor in the Audi A5, including torque specifications and safety precautions.

NOx Sensor Diagnostics and Troubleshooting

Coming Soon

Technical resource for diagnosing and troubleshooting NOx sensor issues in the Audi A5, including common fault codes and solutions.

Audi Genuine Parts Catalog

Coming Soon

Official catalog for sourcing genuine Audi emissions sensors and related components.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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