BMW 340i 2019-present Emissions & Sensors Specifications
Detailed technical specifications for emissions sensors in the 2019-Present BMW 340i (G20/G21). Includes sensor types, locations, and compatibility for maintenance, repair, and upgrades.
Emissions Sensors Specifications Overview Specifications
This document provides a comprehensive overview of the emissions sensors specifications for the 2019-Present BMW 340i. It includes detailed technical information, operational parameters, and maintenance guidelines. Use this document to understand the emissions control systems, sensor types, and their functions. Navigate through the sections to find specific information, and refer to the quick reference section for key specifications.
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To search for specific information, use the search functionality by typing keywords related to emissions sensors, such as 'lambda sensor' or 'exhaust gas temperature.' Results will highlight relevant sections.
Navigate through the document by selecting sections from the table of contents. Each section contains subsections with detailed technical specifications. Use the bookmarks panel for quick access to specific areas.
Key Specifications
Emissions Standard
Euro 6d
Fuel Type
Gasoline
Catalytic Converter Type
Three-way catalyst
Lambda Sensor Type
Heated wide-band
Exhaust Gas Temperature Range
0°C to 1,000°C
Available Specifications
Emissions Control Systems
This section provides an overview of the emissions control systems in the 2019-Present BMW 340i, including the components and their functions. It explains how the systems work together to reduce emissions and improve fuel efficiency.
Emissions Control Systems
This section provides an overview of the emissions control systems in the 2019-Present BMW 340i, including the components and their functions. It explains how the systems work together to reduce emissions and improve fuel efficiency.
Overview of Emissions Control Systems
- The BMW 340i features advanced emissions control systems to meet strict emissions standards.
- The system includes a combination of sensors, catalytic converters, and exhaust gas recirculation (EGR) components.
- The emissions control system is integrated with the engine management system for optimal performance.
- The system monitors and adjusts emissions in real-time to ensure compliance with regulations.
- The catalytic converter reduces harmful emissions by converting pollutants into less harmful gases.
Key Components
- Lambda sensors (oxygen sensors) monitor oxygen levels in the exhaust gases.
- Exhaust gas temperature sensors monitor temperatures to protect components from overheating.
- Catalytic converters reduce emissions of carbon monoxide, hydrocarbons, and nitrogen oxides.
- Exhaust gas recirculation (EGR) system reduces nitrogen oxide emissions.
- The engine control module (ECM) processes data from sensors to optimize emissions control.
Sensor Types and Functions
This section details the different types of emissions sensors used in the 2019-Present BMW 340i, their functions, and how they contribute to emissions control.
Sensor Types and Functions
This section details the different types of emissions sensors used in the 2019-Present BMW 340i, their functions, and how they contribute to emissions control.
Lambda (Oxygen) Sensors
- Measures oxygen levels in the exhaust gases to determine the air-fuel mixture.
- Provides data to the ECM to adjust fuel injection for optimal combustion.
- Typically located in the exhaust system before and after the catalytic converter.
- Heated lambda sensors reduce emissions by enabling faster operation after engine start.
- Faulty lambda sensors can cause decreased fuel efficiency and increased emissions.
Exhaust Gas Temperature Sensors
- Monitors exhaust gas temperatures to prevent overheating of components.
- Provides data to the ECM to adjust engine timing and fuel injection.
- Typically located near the catalytic converter or exhaust manifold.
- High temperature readings can indicate issues with the catalytic converter or engine performance.
- Faulty temperature sensors can lead to reduced engine performance and increased emissions.
Calibration and Maintenance
This section provides guidelines for the calibration and maintenance of emissions sensors in the 2019-Present BMW 340i. It includes recommendations for testing, replacement, and system resets.
Calibration and Maintenance
This section provides guidelines for the calibration and maintenance of emissions sensors in the 2019-Present BMW 340i. It includes recommendations for testing, replacement, and system resets.
Sensor Calibration
- Lambda sensors do not require calibration but may need to be cleaned or replaced if contaminated.
- Exhaust gas temperature sensors should be checked for proper operation during routine maintenance.
- The ECM automatically calibrates the emissions control system during driving.
- After replacing any emissions sensor, the ECM may require a reset or relearn procedure.
- Consult a qualified technician for sensor calibration and maintenance.
Maintenance Recommendations
- Inspect emissions sensors every 30,000 to 50,000 miles for signs of wear or damage.
- Replace lambda sensors if they show signs of contamination or wear.
- Check exhaust gas temperature sensors for proper operation during routine maintenance.
- Ensure the catalytic converter is functioning properly to avoid costly repairs.
- Follow the recommended maintenance schedule to ensure optimal emissions control.
Compliance and Standards
This section outlines the emissions standards and compliance information for the 2019-Present BMW 340i. It includes details on emissions certification and testing procedures.
Compliance and Standards
This section outlines the emissions standards and compliance information for the 2019-Present BMW 340i. It includes details on emissions certification and testing procedures.
Emissions Certification
- The BMW 340i meets or exceeds all applicable emissions standards in its class.
- The vehicle is certified to meet Euro 6d emissions standards in Europe and EPA standards in the United States.
- Regular maintenance is required to ensure continued compliance with emissions standards.
- Failure to maintain the emissions control system may result in non-compliance.
- Consult local regulations for specific emissions requirements and testing procedures.
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Component Specifications
Overview
- Type
- Lambda (Oxygen) Sensor
- Configuration
- Broadband AFR (Air-Fuel Ratio) sensor
- Platform
- BMW G20/G21 340i
- Material
- Stainless Steel and Ceramic
- Location
- Exhaust system upstream and downstream of catalytic converter
- Manufacturer
- Bosch
Dimensions
- Length
- 4.72 inches (120 mm)
- Diameter
- 0.98 inches (25 mm)
- Thread Size
- M18 x 1.5
- Connector Length
- 8.66 inches (220 mm)
- Connector Width
- 1.18 inches (30 mm)
- Weight
- 0.44 lbs (200 g)
- Operating Temperature Range
- -40°F to 2500°F (-40°C to 1360°C)
Materials
- Housing
- Stainless Steel (resistant to corrosion and high temperatures)
- Sensing Element
- Ceramic with Platinum catalyst
- Electrical Connector
- High-temperature resistant plastic
- Wiring Harness
- Silicone-insulated copper wiring
- Mounting Thread
- Stainless Steel with anti-seize coating
Features
- Sensor Technology
-
- Broadband AFR measurement
- Heated element for faster light-off
- Integrated temperature compensation
- Self-diagnostics capability
- CAN bus communication
- Monitoring Capabilities
-
- Continuous AFR monitoring
- Catalytic converter efficiency
- Exhaust gas temperature
- Leak detection in exhaust system
- Fault code generation
- Durability Features
-
- Resistance to exhaust contaminants
- Waterproof and dustproof design
- Vibration-resistant mounting
- EMI/RFI shielding
- Long service life expectancy
- integration
-
- Compatibility with BMW engine management system
- Real-time data transmission
- Adaptive learning capability
- Interaction with ECU for fuel trim adjustment
- Integration with emissions control systems
- Diagnostics
-
- OBD-II compliant
- Fault code storage and retrieval
- Live data streaming capability
- Pre- and post-catalyst monitoring
- Sensor plausibility checks
Safety Features
- Fault Detection
-
- Sensor signal plausibility checks
- Internal error detection
- Open/short circuit detection
- Out-of-range voltage monitoring
- Over Temperature Protection
- Thermal monitoring and shutdown
- Failure Mode
- Fail-safe default operation
Comfort Features
- Smooth Engine Operation
-
- Optimized AFR for smooth idle
- Reduced emissions for cleaner operation
- Improved fuel efficiency
- Minimized engine knocking or pinging
- Enhanced drivability
- Quiet Operation
- Vibration-dampened design
- Reliable Starting
- Fast sensor warm-up time
Accessories
- installation Hardware
-
- Washer and gasket kit
- Anti-seize compound
- Thread sealant
- Connector grease
- Wiring And Connectors
-
- High-temperature wiring harness
- Weatherproof connector kit
- Crimp terminals
- Heat shrink tubing
- Diagnostic Tools
-
- OBD-II scan tool
- Sensor signal analyzer
- Live data logging kit
- Calibration tool
Maintenance
- Service interval
- Every 60,000 miles (96,560 km) or 5 years
- Maintenance Items
-
- Sensor cleaning inspection
- Connector and wiring check
- Thread and gasket inspection
- Fault code clearance
- Response time test
- Replacement interval
- As needed or when fault codes appear
- Notes
- Avoid using silicone-based cleaners or lubricants. Use only BMW-approved anti-seize compounds.
Warranty
- Parts Warranty
- Miles: 60,000 milesYears: 4 yearsCoverage: Parts and labor
- Corrosion Warranty
- Miles: Unlimited milesYears: 12 yearsCoverage: Perforation due to corrosion
- Emissions Warranty
- Miles: 150,000 milesYears: 15 yearsCoverage: Emissions-related components
- Extended Warranty
- Miles: Optional up to 100,000 milesYears: Optional up to 7 yearsCoverage: Parts and labor for repairs
Production Details
- Manufacturer info
- Name: BoschLocation: GermanyCertifications: ISO 9001, IATF 16949, ISO 14001
- Manufacturing Process
-
- Precision ceramic element fabrication
- High-temperature resistant coating application
- Automated sensor assembly
- Advanced calibration and testing
- Laser welding and sealing
- Quality Control
- inspection: 100% bench testingCertification: Individual sensor calibrationStandards: Compliance with SAE and ISO standards
- Sustainability Practices
-
- Recyclable materials used
- Energy-efficient manufacturing
- Low-emission production processes
- Compliance with global environmental regulations
- Production Metrics
- Annual Production: Over 1 million unitsFailure Rate: Less than 0.5%Mtbf: Mean time between failures exceeds 150,000 miles
Service Information for emissions_sensors Service
Maintenance and service requirements specific to this component
- Inspect sensor connectors and wiring
- Check for fault codes related to emissions sensors
- Verify sensor response time
- Clean sensor electrical connections
- Apply anti-seize to threads if needed
Recommended during regular maintenance intervals. Use BMW-approved tools and materials.
- Replace sensors if showing signs of degradation
- Inspect catalytic converter efficiency
- Check for exhaust leaks upstream of sensors
- Verify sensor heating element operation
- Perform emissions system test
Special tools required for sensor replacement. Follow proper torque specifications.
- Comprehensive emissions system overhaul
- Replace all oxygen sensors
- Inspect and replace catalytic converters if necessary
- Check ECU for software updates
- Perform full system diagnostics
Critical to address any emissions-related issues to avoid system damage. Use factory-trained technicians.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the emissions sensors in the 2019-Present BMW 340i?
What are the technical specifications of the emissions sensors in the 2019-Present BMW 340i?
The emissions sensors in the 2019-Present BMW 340i include oxygen sensors, NOx sensors, and a diesel particulate filter (DPF) sensor. These sensors are designed to meet Euro 6 emissions standards and are compatible with BMW's B58B30 engine. The oxygen sensors operate within a temperature range of -40°C to 900°C and provide precise fuel-to-air ratio measurements. The NOx sensors monitor nitrogen oxide emissions, ensuring compliance with emissions regulations. The DPF sensor measures soot levels in the exhaust system, optimizing particulate filter performance.
Q2 What are the maintenance requirements for the emissions sensors?
What are the maintenance requirements for the emissions sensors?
Regular maintenance of the emissions sensors in the 2019-Present BMW 340i is essential for optimal performance. The oxygen sensors should be inspected every 12,000 miles and replaced every 50,000 miles or as needed. The NOx sensors and DPF sensor should be checked every 30,000 miles. Additionally, the exhaust system should be inspected annually for damage or leaks. Use only genuine BMW replacement parts to ensure compatibility and performance. Follow the recommended maintenance schedule outlined in the owner's manual or service guide.
Q3 How do I install or replace the emissions sensors?
How do I install or replace the emissions sensors?
Replacing emissions sensors in the 2019-Present BMW 340i requires careful steps. Start by locating the sensor in the engine compartment or exhaust system. Disconnect the electrical connector and remove any mounting brackets or screws. Remove the old sensor and install the new one, ensuring it is properly seated and aligned. Reconnect the electrical connector and test the system using a BMW-specific OBD-II scanner to clear any fault codes. Refer to the service manual for specific torque specifications and installation guidelines. Always use a torque wrench to avoid damaging the sensor or threads.
Q4 How do I troubleshoot common issues with the emissions sensors?
How do I troubleshoot common issues with the emissions sensors?
Common issues with emissions sensors in the 2019-Present BMW 340i include faulty readings, contamination, or electrical connectivity problems. If a fault code appears, use an OBD-II scanner to identify the specific issue. Check for loose connections or corrosion on the sensor electrical connectors. Inspect the sensor for physical damage or contamination from exhaust gases. If the sensor is faulty, replace it with a genuine BMW part. After replacement, clear the fault codes and test the system to ensure proper function. Consult the troubleshooting guide in the service manual for detailed diagnostic steps.
Q5 How can I optimize the performance of the emissions sensors?
How can I optimize the performance of the emissions sensors?
To optimize the performance of the emissions sensors in the 2019-Present BMW 340i, ensure regular maintenance as outlined in the service manual. Keep the exhaust system clean and free of blockages. Use high-quality fuel that meets Euro 6 standards to minimize contamination. Avoid aggressive driving habits that can increase emissions and sensor wear. Periodically check and replace the air filter to ensure proper engine performance. For advanced tuning, consult a certified BMW technician to perform software updates or adjustments. Always follow BMW-recommended procedures to maintain emissions system integrity.
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 340i Service Manual (2019+)
Coming SoonComprehensive service manual covering technical specifications, maintenance schedules, and repair procedures for the emissions system in the 2019-Present BMW 340i.
BMW Technical Bulletin: Emissions System Update
Coming SoonTechnical bulletin detailing software updates and improvements for the emissions system in the 2019-Present BMW 340i.
BMW Emissions Sensors Parts Catalog
Coming SoonDetailed catalog of emissions sensors and related components for the 2019-Present BMW 340i, including part numbers and compatibility information.
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