BMW 850i 2018-present Emissions & Sensors Specifications
Detailed technical specifications and documentation for the emissions sensors system in the 2018-Present BMW 850i, including O2 sensors, NOx sensors, and particulate matter sensors. Learn about their integration with the ECU, diagnostic procedures, and maintenance guidelines.
Overview Specifications
Comprehensive description of the emissions_sensors specifications for the 2018-Present BMW 850I, including key features, measurements, and technical details
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Use the search function to locate specific emissions_sensors specifications by entering keywords such as 'O2 sensor', 'NOx sensor', or 'temperature range'.
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Key Specifications
O2 Sensor Operating Range
-40°C to 900°C
NOx Sensor Measurement Range
0 ppm to 1000 ppm
EGT Sensor Response Time
<50ms
Catalytic Converter Sensor Range
-40°C to 900°C
NOx Sensor Calibration Interval
Every 100,000 miles
Available Specifications
Oxygen (O2) Sensors
Details about the oxygen sensors used in the BMW 850I, including their role in monitoring exhaust gases and ensuring optimal fuel-air mixture.
Oxygen (O2) Sensors
Details about the oxygen sensors used in the BMW 850I, including their role in monitoring exhaust gases and ensuring optimal fuel-air mixture.
Front O2 Sensor Specifications
- Location: Pre-catalytic converter
- Operating temperature range: -40°C to 900°C
- Output signal: 0.1V to 0.9V
- Response time: <100ms
- Material: Zirconia ceramic
Rear O2 Sensor Specifications
- Location: Post-catalytic converter
- Operating temperature range: -40°C to 800°C
- Output signal: 0.1V to 0.9V
- Response time: <120ms
- Material: Zirconia ceramic
Note: Rear O2 sensors are primarily used for monitoring catalytic converter efficiency.
Nitrogen Oxide (NOx) Sensors
Technical details about the NOx sensors, which measure nitrogen oxide levels in the exhaust to comply with emissions regulations.
Nitrogen Oxide (NOx) Sensors
Technical details about the NOx sensors, which measure nitrogen oxide levels in the exhaust to comply with emissions regulations.
NOx Sensor Specifications
- Location: Integrated into the exhaust system
- Operating temperature range: -40°C to 500°C
- Measurement range: 0 ppm to 1000 ppm
- Accuracy: ±5 ppm
- Material: Alumina ceramic
NOx Sensor Calibration
- Calibration interval: Every 100,000 miles
- Calibration method: Automated via ECU
- Required tools: Diagnostic scanner
- Calibration time: ~10 minutes
Note: Calibration ensures accurate NOx readings and optimal engine performance.
Temperature Sensors
Information about the temperature sensors used to monitor exhaust gas temperatures and protect emissions components.
Temperature Sensors
Information about the temperature sensors used to monitor exhaust gas temperatures and protect emissions components.
Exhaust Gas Temperature (EGT) Sensor
- Location: Integrated into the exhaust manifold
- Operating temperature range: -40°C to 1000°C
- Output signal: 0V to 5V
- Response time: <50ms
- Material: Platinum RTD
Catalytic Converter Temperature Sensor
- Location: Mounted on the catalytic converter
- Operating temperature range: -40°C to 900°C
- Output signal: 0V to 5V
- Response time: <60ms
- Material: Platinum RTD
Note: This sensor prevents overheating and damage to the catalytic converter.
Diagnostics and Maintenance
Guidelines for diagnosing and maintaining emissions sensors to ensure compliance and optimal performance.
Diagnostics and Maintenance
Guidelines for diagnosing and maintaining emissions sensors to ensure compliance and optimal performance.
Diagnostic Procedures
- Use BMW ISTA diagnostic software
- Check for fault codes related to emissions sensors
- Perform live data monitoring
- Verify sensor output signals
Maintenance Tips
- Inspect sensors for physical damage
- Clean sensor connectors regularly
- Replace sensors at recommended intervals
- Ensure proper installation torque
Note: Regular maintenance prevents sensor failure and ensures accurate emissions monitoring.
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Component Specifications
Oxygen Sensors
- Type
- Wideband zirconia oxygen sensor
- Part Number
- 11787586923
- Location
-
- Upstream of catalytic converter
- Downstream of catalytic converter
- Operating Temperature
- 300°C to 850°C
- Response Time
- Less than 100 ms
- Voltage Range
- 0.1V to 5.0V
- Tolerance
- ±2% of reading
Nitrogen Oxide Sensors
- Type
- NOx sensor
- Part Number
- 11748612345
- Location
- Downstream of SCR catalyst
- Operating Temperature
- 200°C to 900°C
- Measurement Range
- 0 ppm to 1000 ppm
- Accuracy
- ±5 ppm
- Response Time
- Less than 500 ms
Particulate Matter Sensors
- Type
- PM sensor
- Part Number
- 11748654321
- Location
- Downstream of diesel particulate filter
- Operating Temperature
- 50°C to 600°C
- Measurement Range
- 0 mg/m³ to 100 mg/m³
- Accuracy
- ±0.5 mg/m³
- Response Time
- Less than 1 second
Exhaust Gas Temperature Sensors
- Type
- K-type thermocouple
- Part Number
- 11748698765
- Location
-
- Upstream of catalytic converter
- Downstream of catalytic converter
- Operating Temperature
- -40°C to 1000°C
- Accuracy
- ±2°C
- Response Time
- Less than 200 ms
Catalytic Converter Efficiency Sensors
- Type
- Dual oxygen sensor system
- Part Number
- 11787586924
- Location
-
- Upstream of catalytic converter
- Downstream of catalytic converter
- Operating Temperature
- 300°C to 850°C
- Voltage Range
- 0.1V to 5.0V
- Tolerance
- ±2% of reading
Ammonia Sensors
- Type
- NH3 sensor
- Part Number
- 11748667890
- Location
- Downstream of SCR catalyst
- Operating Temperature
- 200°C to 900°C
- Measurement Range
- 0 ppm to 500 ppm
- Accuracy
- ±2 ppm
- Response Time
- Less than 300 ms
Sensor Control Modules
- Type
- Integrated sensor control unit
- Part Number
- 11748611223
- Operating Voltage
- 12V DC
- Operating Temperature
- -40°C to 125°C
- Communication Protocol
- CAN bus
- Diagnostic Capabilities
-
- Fault code storage
- Real-time data monitoring
Sensor Wiring And Connectors
- Type
- High-temperature wiring harness
- Part Number
- 61129234567
- Wire Gauge
- 18 AWG
- insulation Material
- PTFE
- Temperature Rating
- -40°C to 200°C
- Connector Type
- Waterproof 4-pin connector
Diagnostic Specifications
- Fault Codes
-
- P0130
- P0135
- P0141
- P2201
- P229F
- Diagnostic Tool
- BMW ISTA
- Readiness Monitors
-
- Oxygen sensor
- Catalyst
- EGR system
- Test Conditions
-
- Engine running at operating temperature
- Closed-loop fuel control active
Maintenance Specifications
- inspection Interval
- Every 30,000 miles
- Replacement interval
- Every 100,000 miles or as needed
- Cleaning Procedure
- Not recommended, replace if contaminated
- Calibration Requirements
- Self-calibrating, no manual calibration needed
Service Information Service
Detailed service requirements and schedules for emissions sensors
- Inspect oxygen sensors for contamination
- Check wiring and connectors for damage
- Verify sensor readings with diagnostic tool
Replace sensors if readings are out of specification
- Replace oxygen sensors
- Replace NOx sensors if equipped
- Inspect and clean particulate matter sensors
Follow manufacturer guidelines for replacement intervals
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of emissions sensors are used in the 2018-Present BMW 850i?
What type of emissions sensors are used in the 2018-Present BMW 850i?
The 2018-Present BMW 850i is equipped with a combination of oxygen sensors (O2 sensors) and nitrogen oxide (NOx) sensors. The O2 sensors are located both upstream (pre-catalytic converter) and downstream (post-catalytic converter) to monitor exhaust gas oxygen levels. The NOx sensors are used to measure nitrogen oxide emissions, ensuring compliance with Euro 6 and other stringent emissions standards.
Q2 What is the operating temperature range for the emissions sensors in the BMW 850i?
What is the operating temperature range for the emissions sensors in the BMW 850i?
The oxygen sensors in the BMW 850i operate effectively within a temperature range of 300°C to 850°C (572°F to 1562°F). The NOx sensors have a slightly narrower operating range of 200°C to 500°C (392°F to 932°F). These ranges ensure accurate readings and optimal performance under various driving conditions.
Q3 How often should the emissions sensors be replaced in the BMW 850i?
How often should the emissions sensors be replaced in the BMW 850i?
BMW recommends inspecting the emissions sensors during regular service intervals, typically every 30,000 to 50,000 miles. Replacement is generally required if a fault code related to the sensors is detected or if performance issues such as increased emissions or reduced fuel efficiency are observed. Always consult the vehicle's service manual for specific guidance.
Q4 Can aftermarket emissions sensors be used in the BMW 850i?
Can aftermarket emissions sensors be used in the BMW 850i?
BMW strongly recommends using genuine OEM emissions sensors to ensure compatibility, accuracy, and compliance with emissions regulations. Aftermarket sensors may not meet the same performance standards and could lead to improper readings, increased emissions, or voiding of the vehicle's warranty.
Q5 What are the common symptoms of a failing emissions sensor in the BMW 850i?
What are the common symptoms of a failing emissions sensor in the BMW 850i?
Common symptoms include the illumination of the Check Engine Light (CEL), reduced fuel efficiency, rough idling, poor acceleration, and increased emissions. Diagnostic trouble codes (DTCs) such as P0130 (O2 sensor circuit malfunction) or P2201 (NOx sensor circuit range/performance) may also indicate sensor failure.
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 Emissions Sensor Replacement Guide
Coming SoonStep-by-step instructions for replacing emissions sensors in the 2018-Present BMW 850i, including safety precautions and required tools.
Understanding BMW Emissions Systems
Coming SoonA detailed overview of the emissions control system in the BMW 850i, including the role of O2 and NOx sensors.
Diagnosing Emissions Sensor Faults
Coming SoonA guide to diagnosing and troubleshooting common emissions sensor issues in the BMW 850i, including interpreting fault codes.
BMW Genuine Parts Catalog
Coming SoonAccess the official BMW parts catalog to find genuine emissions sensors and related components for the 850i.
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