BMW 430i 2017-present Emissions & Sensors Specifications
Comprehensive technical specifications for the emissions sensors system in the 2017-Present BMW 430I, including O2 sensors, NOx sensors, and particulate matter sensors. Ideal for technicians and enthusiasts.
Overview Specifications
Comprehensive description of the emissions_sensors specifications for the 2017-Present BMW 430I, including key features, measurements, and technical details
How to Use
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 Voltage Range
0.1V to 0.9V
NOx Sensor Measurement Range
0-2000 ppm
EGT Sensor Accuracy
±2°C
MAF Sensor Measurement Range
0-500 kg/h
Catalytic Converter Temp Range
-40°C to 950°C
Available Specifications
Oxygen (O2) Sensors
Details about the oxygen sensors used in the BMW 430I, including their role in monitoring exhaust gas oxygen levels for optimal fuel efficiency and emissions control.
Oxygen (O2) Sensors
Details about the oxygen sensors used in the BMW 430I, including their role in monitoring exhaust gas oxygen levels for optimal fuel efficiency and emissions control.
Front O2 Sensor Specifications
- Located in the exhaust manifold, upstream of the 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 downstream of the catalytic converter
- Operating temperature range: -40°C to 850°C
- Output voltage range: 0.1V to 0.9V
- Response time: <120ms
- Heater resistance: 6-10 ohms at 20°C
Note: The rear O2 sensor is critical for monitoring catalytic converter efficiency.
Nitrogen Oxide (NOx) Sensors
Technical details about the NOx sensors used to measure and control nitrogen oxide emissions in the BMW 430I.
Nitrogen Oxide (NOx) Sensors
Technical details about the NOx sensors used to measure and control nitrogen oxide emissions in the BMW 430I.
NOx Sensor Specifications
- Located in the exhaust system, downstream of the SCR catalyst
- Operating temperature range: -40°C to 800°C
- Measurement range: 0-2000 ppm
- Accuracy: ±5% of measured value
- Heater power consumption: 12W at 12V
NOx Sensor Diagnostics
- Self-diagnostic capability for fault detection
- Communication protocol: CAN bus
- Fault codes stored in the ECU for troubleshooting
- Replacement interval: 100,000 miles or as needed
Note: Regular diagnostics are essential to ensure compliance with emissions standards.
Temperature Sensors
Information about the temperature sensors used to monitor exhaust gas and catalytic converter temperatures.
Temperature Sensors
Information about the temperature sensors used to monitor exhaust gas and catalytic converter temperatures.
Exhaust Gas Temperature (EGT) Sensor
- Located in the exhaust manifold
- Operating temperature range: -40°C to 1000°C
- Output signal: 0-5V analog
- Accuracy: ±2°C
- Response time: <200ms
Catalytic Converter Temperature Sensor
- Located on the catalytic converter housing
- Operating temperature range: -40°C to 950°C
- Output signal: 0-5V analog
- Accuracy: ±3°C
- Response time: <250ms
Note: Critical for preventing catalytic converter overheating.
Mass Air Flow (MAF) Sensor
Details about the MAF sensor, which measures the volume and density of air entering the engine for optimal combustion.
Mass Air Flow (MAF) Sensor
Details about the MAF sensor, which measures the volume and density of air entering the engine for optimal combustion.
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 measured value
MAF Sensor Maintenance
- Self-cleaning function to prevent contamination
- Replacement interval: 75,000 miles or as needed
- Diagnostic capability via OBD-II port
- Compatible with BMW ISTA diagnostic software
Note: Regular cleaning and inspection are recommended to maintain accuracy.
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Component Specifications
Oxygen Sensors
- Type
- Wideband zirconia oxygen sensor
- Location
-
- Upstream (pre-catalytic converter)
- Downstream (post-catalytic converter)
- Part Number
-
- 11787586945
- 11787586946
- Operating Temperature Range
- -40°C to 900°C
- Response Time
- less than 100 ms
- Voltage Output Range
- 0.1V to 4.9V
- Cross Reference
-
- DME (Digital Motor Electronics)
- Catalytic Converter
Nitrogen Oxide Sensors
- Type
- NOx sensor
- Location
- Downstream of SCR (Selective Catalytic Reduction) system
- Part Number
- 11748658923
- Operating Temperature Range
- -40°C to 500°C
- Measurement Range
- 0 ppm to 1000 ppm
- Accuracy
- ±5 ppm
- Cross Reference
-
- SCR System
- AdBlue Injector
Mass Air Flow Sensor
- Type
- Hot-film air mass sensor
- Location
- Intake air duct
- Part Number
- 13627586934
- Measurement Range
- 0 kg/h to 650 kg/h
- Accuracy
- ±2% of reading
- Operating Temperature Range
- -40°C to 120°C
- Cross Reference
-
- Intake Manifold
- Throttle Body
Exhaust Gas Temperature Sensors
- Type
- Thermocouple-based temperature sensor
- Location
-
- Upstream of catalytic converter
- Downstream of catalytic converter
- Part Number
-
- 11748658924
- 11748658925
- Measurement Range
- -40°C to 1000°C
- Accuracy
- ±5°C
- Response Time
- less than 2 seconds
- Cross Reference
-
- Catalytic Converter
- DME
Catalytic Converter Efficiency Sensors
- Type
- Oxygen sensor-based efficiency monitor
- Location
- Downstream of catalytic converter
- Part Number
- 11787586947
- Operating Temperature Range
- -40°C to 900°C
- Voltage Output Range
- 0.1V to 4.9V
- Cross Reference
-
- Catalytic Converter
- DME
Evaporative Emissions System Sensor
- Type
- Pressure sensor
- Location
- Fuel tank
- Part Number
- 16137586948
- Measurement Range
- -10 kPa to +10 kPa
- Accuracy
- ±0.1 kPa
- Operating Temperature Range
- -40°C to 85°C
- Cross Reference
-
- Fuel Tank
- Charcoal Canister
Differential Pressure Sensor
- Type
- Piezoresistive pressure sensor
- Location
- Particulate filter (DPF)
- Part Number
- 11748658926
- Measurement Range
- 0 kPa to 50 kPa
- Accuracy
- ±0.5 kPa
- Operating Temperature Range
- -40°C to 150°C
- Cross Reference
-
- DPF
- DME
Ambient Air Pressure Sensor
- Type
- Barometric pressure sensor
- Location
- Engine control unit (ECU)
- Part Number
- 13627586935
- Measurement Range
- 50 kPa to 115 kPa
- Accuracy
- ±0.5 kPa
- Operating Temperature Range
- -40°C to 85°C
- Cross Reference
-
- ECU
- Intake System
Service Life
- Oxygen Sensors
- 100,000 miles or 10 years
- Nitrogen Oxide Sensors
- 150,000 miles or 15 years
- Mass Air Flow Sensor
- 150,000 miles or 15 years
- Exhaust Gas Temperature Sensors
- 200,000 miles or 20 years
- Evaporative Emissions System Sensor
- 100,000 miles or 10 years
- Differential Pressure Sensor
- 150,000 miles or 15 years
- Ambient Air Pressure Sensor
- 200,000 miles or 20 years
Diagnostic Specifications
- Oxygen Sensors
- Fault Codes: P0130, P0131, P0132, P0133Diagnostic Tool: BMW ISTATest Voltage Range: 0.1V to 4.9V
- Nitrogen Oxide Sensors
- Fault Codes: P2200, P2201, P2202Diagnostic Tool: BMW ISTATest Voltage Range: 0.5V to 4.5V
- Mass Air Flow Sensor
- Fault Codes: P0100, P0101, P0102Diagnostic Tool: BMW ISTATest Air Flow Range: 0 kg/h to 650 kg/h
Service Information Service
Detailed service requirements and schedules for emissions sensors
- Inspect oxygen sensors for contamination
- Check mass air flow sensor for debris
- Verify exhaust gas temperature sensor readings
Use BMW-approved diagnostic tools for testing
- Replace oxygen sensors if necessary
- Clean mass air flow sensor
- Inspect NOx sensor for proper operation
Follow BMW service guidelines for replacement
- Replace nitrogen oxide sensor if required
- Inspect differential pressure sensor
- Check evaporative emissions system sensor
Ensure all sensors are within specified tolerances
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the function of the NOx sensor in the 2017-Present BMW 430i?
What is the function of the NOx sensor in the 2017-Present BMW 430i?
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 temperatures up to 900°C and has a response time of less than 1 second.
Q2 How often should the oxygen (O2) sensors be replaced in the BMW 430i?
How often should the oxygen (O2) sensors be replaced in the BMW 430i?
BMW recommends inspecting the oxygen sensors every 60,000 miles and replacing them if necessary. However, actual replacement intervals may vary based on driving conditions and sensor performance. Faulty O2 sensors can trigger the Check Engine Light and reduce fuel efficiency by up to 15%.
Q3 What are the symptoms of a failing emissions sensor in the BMW 430i?
What are the symptoms of a failing emissions sensor in the BMW 430i?
Common symptoms include the Check Engine Light illuminating, reduced fuel efficiency, rough idling, and increased emissions. Diagnostic trouble codes (DTCs) such as P0135 (O2 Sensor Heater Circuit Malfunction) or P229F (NOx Sensor Circuit Range/Performance) may also be stored in the ECU.
Q4 Can I replace the emissions sensors myself, or should I consult a professional?
Can I replace the emissions sensors myself, or should I consult a professional?
While it is possible to replace emissions sensors yourself, it is recommended to consult a professional technician. Proper installation requires specialized tools, such as an O2 sensor socket, and knowledge of the vehicle's ECU programming. Incorrect installation can lead to further damage and void the vehicle's warranty.
Q5 What is the voltage range for the oxygen sensors in the BMW 430i?
What is the voltage range for the oxygen sensors in the BMW 430i?
The upstream (pre-catalytic converter) oxygen sensors typically operate within a voltage range of 0.1V to 0.9V, fluctuating rapidly under normal conditions. The downstream (post-catalytic converter) sensors have a more stable voltage range, usually between 0.4V and 0.6V, indicating proper catalytic converter function.
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 System Overview
Coming SoonDetailed guide on the emissions control system in the 2017-Present BMW 430i, including sensor locations and functions.
NOx Sensor Replacement Procedure
Coming SoonStep-by-step instructions for replacing the NOx sensor in the BMW 430i, including torque specifications and safety precautions.
O2 Sensor Diagnostic Codes
Coming SoonComprehensive list of diagnostic trouble codes (DTCs) related to oxygen sensors and their meanings for the BMW 430i.
Emissions System Maintenance Schedule
Coming SoonOfficial BMW maintenance schedule for emissions-related components, including inspection and replacement intervals.
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