BMW 840i 2018-present Emissions & Sensors Specifications
BMW 840i 2018-present

BMW 840i 2018-present Emissions & Sensors Specifications

Find detailed emissions sensor specifications for the BMW 840i (G14/G15) models. Includes sensor types, locations, and compatibility for accurate diagnostics and maintenance.

Updated

Emissions Sensors Specifications Specifications

This document provides a comprehensive overview of the emissions sensors specifications for the 2018-Present BMW 840i. It includes detailed technical information, installation guidelines, and performance metrics. Use this document to understand the functionality, maintenance, and compliance standards of the emissions sensors system. Refer to the sections below for specific details and use the quick reference guide for key specifications.

How to Use

To search for specific information, use the Ctrl+F function (or Command+F on macOS) and enter keywords related to emissions sensors, such as 'O2 sensor' or 'NOx sensor'.

Navigate through the document by selecting sections from the table of contents. Each section includes subsections with detailed technical points. Use the 'quick reference' section for at-a-glance key specifications.

Key Specifications

Number of Emissions Sensors

6 sensors

O2 Sensor Voltage Range

0.1V to 0.9V

NOx Sensor Accuracy

±5 ppm

Temperature Sensor Range

0°C to 1000°C

Emissions Standard

Euro 6d-TEMP

Available Specifications

Types of Emissions Sensors

This section outlines the different types of emissions sensors used in the 2018-Present BMW 840i, including their functions and technical specifications.

Oxygen (O2) Sensors
  • Monitors oxygen levels in exhaust gases
  • Provides data for fuel injection system optimization
  • Typical voltage range: 0.1V to 0.9V
  • Located in exhaust system before and after catalytic converter
  • Replacement interval: Approximately 100,000 miles
Nitrogen Oxides (NOx) Sensors
  • Measures nitrogen oxide emissions
  • Used to control SCR (Selective Catalytic Reduction) system
  • Operating temperature range: -40°C to 900°C
  • Typical response time: <100ms
  • Requires periodic calibration
Temperature Sensors
  • Monitors exhaust gas temperature
  • Prevents overheating of emissions control components
  • Typical operating range: 0°C to 1000°C
  • Integrated with catalytic converter and SCR system
  • Requires no routine maintenance

Installation and Maintenance

This section provides guidelines for the installation, maintenance, and troubleshooting of emissions sensors in the 2018-Present BMW 840i.

Installation Guidelines
  • Ensure proper torque specifications for sensor mounting bolts
  • Use OEM-approved sensors for compatibility
  • Follow wiring harness routing instructions
  • Perform system reset after installation
  • Consult factory service manual for detailed procedures
Maintenance and Troubleshooting
  • Inspect sensors and wiring for damage or corrosion
  • Clean or replace sensors as needed
  • Use diagnostic tools to check sensor performance
  • Address fault codes promptly to avoid system damage
  • Refer to service manual for error code interpretation

Performance Metrics

This section details the performance metrics and specifications of the emissions sensors in the 2018-Present BMW 840i.

Sensor Accuracy and Response
  • O2 sensor accuracy: ±1% of full scale
  • NOx sensor accuracy: ±5 ppm
  • Temperature sensor accuracy: ±2°C
  • Response time for O2 sensor: <100ms
  • Response time for NOx sensor: <200ms
Operating Conditions
  • Maximum exhaust gas flow rate: 500 kg/h
  • Maximum backpressure: 50 mbar
  • Minimum operating voltage: 9V
  • Maximum operating voltage: 16V
  • IP67 environmental protection rating

Compliance and Standards

This section outlines the emissions standards and regulatory compliance for the sensors in the 2018-Present BMW 840i.

Emissions Standards
  • Compliant with Euro 6d-TEMP standards
  • Meets EPA Tier 3 Bin 125 standards
  • Adheres to UN ECE R-83 regulations
  • Certified for use in all 50 states
  • Designed for global market compatibility

Component Specifications

Overview

Type
Exhaust Gas Recirculation (EGR) and Oxygen Sensors
Configuration
Dual-sensor setup for precise measurement
Platform
BMW G14/G15 (8 Series)
Material
Ceramic with platinum electrodes
Location
Pre- and post-catalytic converter

Dimensions

Length
4.5 inches (11.4 cm)
Diameter
0.75 inches (1.9 cm)
Sensing Element Length
2.2 inches (5.6 cm)
Operating Temperature Range
32°F to 212°F (-0°C to 100°C)
Response Time
<100 ms
Thread Size
M18 x 1.5
Housing Material Thickness
0.06 inches (1.5 mm)

Materials

Sensing Element
Platinum-based ceramic
Housing
Stainless steel (high-temperature resistant)
Connectors
Gold-plated contacts for corrosion resistance
Wiring
High-temperature resistant silicone insulation
Mounting Flange
Stainless steel

Features

Accuracy And Precision
  • High sensitivity for O2 level detection
  • Wide operating range
  • Self-diagnostics capability
  • Heated sensor for faster light-off
Connectivity
  • CAN bus communication
  • Real-time data transmission
  • Fault code generation
  • Compatible with BMW iDrive system
Durability
  • High-temperature resistance
  • Anti-corrosion coating
  • Vibration-resistant design
  • Water and dust ingress protection (IP67)
integration
  • Seamless integration with BMW engine control unit (ECU)
  • Adaptive learning capability
  • Fuel trim adjustment
  • Torque reduction integration

Safety Features

Fault Detection
  • OBD-II compliant
  • Limp mode activation
  • Error code storage
  • Sensor plausibility checks
Protection
  • Over-voltage protection
  • Reverse polarity protection
  • Thermal overload protection
Monitoring
  • Continuous O2 level monitoring
  • EGR flow monitoring
  • Catalytic converter efficiency monitoring

Comfort Features

Reduced Emissions
  • Lower emissions for cleaner operation
  • Improved fuel efficiency
  • Reduced engine noise
Smooth Operation
  • Optimized engine performance
  • Smooth acceleration
  • Reduced vibrations
Advanced Functionality
  • Support for start/stop functionality
  • Coasting mode compatibility
  • Eco mode optimization

Accessories

installation Kit
  • Mounting bracket
  • Wiring harness
  • Connectors
  • Gasket set
Diagnostic Tools
  • OBD-II scanner
  • BMW ISTA/D diagnostic software
  • Sensor calibration tool
  • Multimeter for troubleshooting
Replacement Parts
  • Oxygen sensor replacement kit
  • EGR valve replacement kit
  • Sensor cleaning solution
  • Wiring harness repair kit

Maintenance

Service interval
  • Miles: 5,000 miles, Months: 6 months, Items: Inspect sensor connections,Clean sensor elements,Check wiring harness,Verify sensor response, Note: Recommended during regular oil change service
  • Miles: 15,000 miles, Months: 12 months, Items: Replace oxygen sensors if faulty,Inspect EGR valve operation,Check catalytic converter efficiency,Update sensor calibration, Note: Replace sensors if performance degradation is detected
  • Miles: 30,000 miles, Months: 24 months, Items: Perform detailed sensor diagnostic test,Replace EGR valve if necessary,Clean or replace catalytic converter,Reset adaptive learning data, Note: Major service recommended by BMW guidelines
Maintenance Notes
  • Always use genuine BMW replacement parts
  • Use specialized tools for sensor calibration
  • Ensure proper torque specifications for sensor mounting
  • Clear fault codes after service

Warranty

Emissions Warranty
Miles: 80,000 miles
Years: 8 years
Coverage: Parts and labor
Parts And Labor
Miles: 50,000 miles
Years: 4 years
Coverage: Emissions-related components
Maintenance Warranty
Miles: 36,000 miles
Years: 3 years
Coverage: Scheduled maintenance
Roadside Assistance
Miles: Unlimited miles
Years: 4 years
Coverage: 24/7 support
Warranty Terms
  • Valid from date of vehicle delivery
  • Transferable to subsequent owners
  • Requires proper maintenance records
  • Excludes damage from tampering or misuse

Production Details

Manufacturer
Continental AG or Bosch
Manufacturing Process
  • Precision ceramic element manufacturing
  • Advanced welding techniques
  • Automated assembly line production
  • Stringent quality control measures
Quality Control
Visual inspection: 100% visual inspection
Electrical Testing: Full electrical performance testing
Environmental Testing: Thermal and vibration testing
Certifications: ISO 9001 and IATF 16949 certified
Sustainability Practices
  • Recyclable materials used in production
  • Energy-efficient manufacturing processes
  • Eco-friendly packaging
  • Compliance with global emissions standards
Production Metrics
Annual Production: Over 1 million units annually
Mtbf: Mean Time Between Failures: >100,000 hours

Service Information for emissions_sensors Service

Maintenance and service requirements specific to this component

5,000 miles
6 months
  • Inspect sensor electrical connections
  • Clean sensor elements if necessary
  • Check wiring harness for damage
  • Verify sensor response using diagnostic tools

Perform during routine oil service

15,000 miles
12 months
  • Replace oxygen sensors if performance has degraded
  • Inspect EGR valve operation
  • Check catalytic converter efficiency
  • Update sensor calibration software

Use BMW-approved diagnostic tools

30,000 miles
24 months
  • Perform detailed sensor diagnostic test
  • Replace EGR valve if necessary
  • Clean or replace catalytic converter
  • Reset adaptive learning data

Requires specialized tools and training

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the technical specifications of the emissions sensors in the 2018-Present BMW 840i?

The emissions sensors in the 2018-Present BMW 840i include oxygen sensors (O2 sensors) and air-fuel ratio sensors. These sensors are designed to monitor exhaust gas composition and ensure optimal engine performance and emissions control. The O2 sensors are wide-band type, providing precise readings for better fuel efficiency and reduced emissions. Compatibility with the N63 and N63TU engines ensures seamless integration with the vehicle's powertrain.

Q2

What maintenance is required for the emissions sensors in the 2018-Present BMW 840i?

Regular maintenance for emissions sensors includes visual inspections for damage or contamination, cleaning or replacing sensors as needed, and ensuring proper electrical connections. It is recommended to replace oxygen sensors every 50,000 to 80,000 miles or as specified in the service manual. Additionally, using high-quality fuel and avoiding contaminants can help maintain sensor accuracy and longevity.

Q3

How do I install or replace an emissions sensor in the 2018-Present BMW 840i?

To replace an emissions sensor, locate the sensor in the exhaust system, disconnect the electrical connector, and remove the sensor using a wrench or socket. Install the new sensor by reversing the steps, ensuring it is properly seated and connected. Refer to the service manual for specific instructions and torque specifications. It is recommended to use a scan tool to clear any fault codes after replacement.

Q4

How do I troubleshoot common issues with the emissions sensors in the 2018-Present BMW 840i?

Common issues with emissions sensors include faulty readings, contamination, or electrical connectivity problems. Use a scan tool to check for error codes (e.g., P0130-P0159). Inspect sensors for physical damage or soot buildup and clean or replace them as needed. Check wiring and connections for damage or corrosion. If issues persist, consult a professional technician for further diagnosis and repair.

Q5

How can I optimize the performance of the emissions sensors in the 2018-Present BMW 840i?

Optimize emissions sensor performance by ensuring proper installation, using high-quality replacement parts, and maintaining regular maintenance schedules. Avoid using fuel additives that may contaminate sensors. Regularly check and clear fault codes using a scan tool. Consider updating the vehicle's software to ensure compatibility with the latest sensor technologies and emissions standards.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

BMW 840i Service Manual (2018-Present)

Coming Soon

Comprehensive service manual detailing emissions sensor specifications, maintenance, and replacement procedures.

Technical Bulletin: Emissions Sensor Updates

Coming Soon

Technical bulletin outlining updates and improvements for emissions sensors in the 2018-Present BMW 840i.

BMW Parts Catalog: Emissions Sensors

Coming Soon

Catalog of genuine BMW emissions sensors and accessories for the 2018-Present 840i.

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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