BMW M6 2012-2018 Emissions & Sensors Specifications
Detailed technical specifications and diagnostic information for the emissions sensors system in the 2012-2018 BMW M6, including O2 sensors, NOx sensors, and particulate matter sensors.
Overview Specifications
Comprehensive description of the emissions_sensors specifications for the 2012-2018 BMW M6, including key features, measurements, and technical details
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Key Specifications
O2 Sensor Voltage Range
0.1V to 0.9V
NOx Sensor Measurement Range
0-2000 ppm
EGT Sensor Operating Range
-40°C to 1000°C
MAF Sensor Measurement Range
0-500 kg/h
O2 Sensor Heater Resistance
6-10 ohms at 20°C
Available Specifications
Oxygen (O2) Sensors
Details about the oxygen sensors used in the 2012-2018 BMW M6, including their role in monitoring exhaust gas oxygen levels.
Oxygen (O2) Sensors
Details about the oxygen sensors used in the 2012-2018 BMW M6, including their role in monitoring exhaust gas oxygen levels.
Front O2 Sensor Specifications
- Located in the exhaust manifold, pre-catalytic converter
- Operating temperature range: -40°C to 900°C
- Output voltage range: 0.1V to 0.9V
- Response time: <100ms
- Heater resistance: 6-10 ohms at 20°C
Rear O2 Sensor Specifications
- Located post-catalytic converter
- Operating temperature range: -40°C to 800°C
- Output voltage range: 0.1V to 0.9V
- Response time: <120ms
- Heater resistance: 6-10 ohms at 20°C
Note: Rear O2 sensors are primarily used to monitor catalytic converter efficiency.
Nitrogen Oxide (NOx) Sensors
Technical details about the NOx sensors used to measure nitrogen oxide levels in the exhaust system.
Nitrogen Oxide (NOx) Sensors
Technical details about the NOx sensors used to measure nitrogen oxide levels in the exhaust system.
NOx Sensor Specifications
- Located in the exhaust system, post-catalytic converter
- Operating temperature range: -40°C to 950°C
- Measurement range: 0-2000 ppm NOx
- Accuracy: ±5% of reading
- Heater power consumption: 12W at 12V
NOx Sensor Diagnostics
- Integrated self-diagnostic capabilities
- Error codes stored in the ECU for NOx sensor faults
- Typical lifespan: 100,000 miles
- Replacement interval: As per fault codes or performance degradation
Note: NOx sensors are critical for compliance with emissions regulations.
Exhaust Gas Temperature (EGT) Sensors
Information about the EGT sensors used to monitor exhaust gas temperatures in the 2012-2018 BMW M6.
Exhaust Gas Temperature (EGT) Sensors
Information about the EGT sensors used to monitor exhaust gas temperatures in the 2012-2018 BMW M6.
EGT Sensor Specifications
- Located in the exhaust manifold and downpipe
- Operating temperature range: -40°C to 1000°C
- Output signal: 0-5V analog
- Response time: <200ms
- Accuracy: ±2% of reading
EGT Sensor Placement
- Pre-turbo EGT sensor monitors turbine inlet temperature
- Post-catalytic converter EGT sensor ensures catalytic converter efficiency
- Dual EGT sensors for turbocharged models
- Critical for preventing engine and turbocharger damage
Note: EGT sensors are essential for protecting high-performance components.
Mass Air Flow (MAF) Sensor
Details about the MAF sensor used to measure the volume and density of air entering the engine.
Mass Air Flow (MAF) Sensor
Details about the MAF sensor used to measure the volume and density of air entering the engine.
MAF Sensor Specifications
- Located in the intake air duct
- Operating temperature range: -40°C to 120°C
- Output signal: 0-5V analog
- Measurement range: 0-500 kg/h
- Accuracy: ±2% of reading
MAF Sensor Maintenance
- Regular cleaning recommended to prevent contamination
- Typical lifespan: 150,000 miles
- Replacement interval: As per fault codes or performance degradation
- Critical for accurate air-fuel ratio calculation
Note: A faulty MAF sensor can lead to poor engine performance and increased emissions.
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Component Specifications
Oxygen Sensors
- Part Number
- 11787586945
- Type
- Wideband zirconia oxygen sensor
- Location
-
- Upstream of catalytic converter
- Downstream of catalytic converter
- Operating Temperature
- 300°C to 850°C
- Voltage Range
- 0.1V to 0.9V
- Response Time
- Less than 100ms
- Tolerance
- ±2% of reading
Nitrogen Oxide Sensors
- Part Number
- 11747838572
- Type
- NOx sensor
- 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 500ms
Particulate Matter Sensors
- Part Number
- 11747838573
- Type
- PM sensor
- Location
- Downstream of DPF
- Operating Temperature
- 150°C to 600°C
- Measurement Range
- 0 mg/m³ to 50 mg/m³
- Accuracy
- ±0.5 mg/m³
- Response Time
- Less than 1 second
Exhaust Gas Temperature Sensors
- Part Number
- 11747838574
- Type
- Thermocouple-based EGT sensor
- Location
-
- Upstream of turbocharger
- Downstream of DPF
- Operating Temperature
- -40°C to 1000°C
- Accuracy
- ±2°C
- Response Time
- Less than 200ms
Mass Air Flow Sensor
- Part Number
- 13627838575
- Type
- Hot-film MAF sensor
- Location
- Intake air duct
- Measurement Range
- 0 kg/h to 1000 kg/h
- Accuracy
- ±2% of reading
- Operating Temperature
- -40°C to 120°C
- Response Time
- Less than 50ms
Catalytic Converter Efficiency Sensors
- Part Number
- 11747838576
- Type
- Oxygen storage capacity sensor
- Location
- Integrated into catalytic converter
- Operating Temperature
- 300°C to 800°C
- Measurement Range
- 0% to 100% efficiency
- Accuracy
- ±3%
- Response Time
- Less than 300ms
Ambient Air Temperature Sensor
- Part Number
- 65829238577
- Type
- NTC thermistor
- Location
- Front bumper area
- Operating Temperature
- -40°C to 85°C
- Accuracy
- ±1°C
- Response Time
- Less than 10 seconds
Fuel Tank Pressure Sensor
- Part Number
- 16147838578
- Type
- Piezoresistive pressure sensor
- Location
- Fuel tank
- Measurement Range
- -10 kPa to 50 kPa
- Accuracy
- ±0.5 kPa
- Operating Temperature
- -40°C to 120°C
- Response Time
- Less than 100ms
Evaporative Emissions System Sensor
- Part Number
- 16147838579
- Type
- Pressure sensor
- Location
- EVAP canister
- Measurement Range
- -5 kPa to 5 kPa
- Accuracy
- ±0.2 kPa
- Operating Temperature
- -40°C to 85°C
- Response Time
- Less than 50ms
Diagnostic Specifications
- Fault Codes
-
- P0130
- P0135
- P0141
- P0420
- P0430
- P2201
- Diagnostic Tool
- BMW ISTA/D
- Readiness Monitors
-
- Oxygen sensor
- Catalyst
- Evaporative system
- EGR system
- Test Conditions
-
- Engine at operating temperature
- Closed-loop fuel control active
- Tolerances
- Oxygen Sensor Voltage: 0.1V to 0.9VNOx Sensor Ppm: ±5 ppmPM Sensor Mg M3: ±0.5 mg/m³
Service Information Service
Detailed service requirements and schedules for emissions sensors
- Inspect oxygen sensors for contamination
- Check NOx sensor readings for accuracy
- Verify PM sensor functionality
- Inspect wiring and connectors for damage
Replace sensors if readings are outside specified tolerances
- Replace oxygen sensors as preventive maintenance
- Test NOx sensor response time
- Clean PM sensor probe
- Inspect EGT sensor for thermal degradation
Use only OEM parts for replacement
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the function of the NOx sensor in the 2012-2018 BMW M6 emissions system?
What is the function of the NOx sensor in the 2012-2018 BMW M6 emissions system?
The NOx (Nitrogen Oxide) sensor monitors the levels of nitrogen oxides in the exhaust gases. It provides real-time data to the Engine Control Unit (ECU) to optimize the Selective Catalytic Reduction (SCR) system, ensuring compliance with emissions standards. The sensor operates at a temperature range of 200°C to 850°C and has a response time of less than 1 second.
Q2 How often should the oxygen (O2) sensors be replaced in the BMW M6?
How often should the oxygen (O2) sensors be replaced in the BMW M6?
Oxygen sensors in the BMW M6 typically have a lifespan of 60,000 to 90,000 miles. However, this can vary based on driving conditions and fuel quality. Symptoms of a failing O2 sensor include poor fuel economy, rough idling, and increased emissions. Regular diagnostic checks are recommended to ensure optimal performance.
Q3 What is the voltage range for the lambda sensors in the BMW M6?
What is the voltage range for the lambda sensors in the BMW M6?
The lambda sensors (wideband O2 sensors) in the BMW M6 operate within a voltage range of 0.1V to 4.9V. A voltage below 0.1V indicates a lean mixture, while a voltage above 4.9V indicates a rich mixture. These sensors are critical for maintaining the air-fuel ratio at the stoichiometric level (14.7:1).
Q4 Can a faulty emissions sensor trigger a check engine light in the BMW M6?
Can a faulty emissions sensor trigger a check engine light in the BMW M6?
Yes, a faulty emissions sensor, such as the NOx, O2, or lambda sensor, can trigger the check engine light (CEL). The ECU continuously monitors these sensors for irregularities. If a sensor fails or provides out-of-range data, the ECU will log a fault code (e.g., P0135 for O2 sensor heater circuit malfunction) and illuminate the CEL.
Q5 What is the replacement procedure for the NOx sensor in the BMW M6?
What is the replacement procedure for the NOx sensor in the BMW M6?
Replacing the NOx sensor requires disconnecting the battery, removing the exhaust heat shield, and unplugging the sensor's electrical connector. The sensor is then unscrewed using a 22mm wrench. Installation involves torquing the new sensor to 50 Nm (37 lb-ft) and reconnecting all components. Post-replacement, the ECU may need to be reset using a diagnostic tool.
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 M6 Emissions System Overview
Coming SoonDetailed guide on the emissions control system, including sensor locations, functions, and diagnostic procedures.
NOx Sensor Replacement Guide
Coming SoonStep-by-step instructions for replacing the NOx sensor in the 2012-2018 BMW M6, including torque specifications and safety precautions.
O2 Sensor Diagnostic Codes
Coming SoonComprehensive list of fault codes related to O2 sensors, their meanings, and troubleshooting steps.
Lambda Sensor Calibration Procedure
Coming SoonTechnical guide on calibrating lambda sensors to ensure accurate air-fuel ratio measurements.
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