Mercedes-Benz Mercedes C-Class 2014-2021 Emissions & Sensors Specifications
Discover detailed specifications for emissions sensors in the 2014-2021 Mercedes-Benz C-Class. Learn about sensor types, functionalities, and compatibility for maintenance, repair, and performance optimization.
Overview Specifications
This document provides detailed specifications and technical information about the emissions sensors used in the 2014-2021 Mercedes-Benz C-Class. It is designed to assist technicians, engineers, and enthusiasts in understanding the functionality, maintenance, and troubleshooting of these sensors. The document is organized into sections for easy navigation, with subsections detailing specific aspects of the emissions sensors. Use the search and navigation instructions to quickly find the information you need.
How to Use
Use the search bar to enter keywords related to the emissions sensors, such as 'O2 sensor' or 'NOx sensor'. The search results will highlight relevant sections and subsections for quick access.
Navigate through the document using the table of contents. Each major section is divided into subsections, which can be expanded to view detailed technical points. Use the quick reference section for a summary of key specifications.
Key Specifications
O2 Sensor Operating Temperature
600-800°C
NOx Sensor Response Time
< 2 seconds
PM Sensor Measurement Range
0-10 mg/m³
Sensor Lifespan (O2)
60,000-90,000 miles
Sensor Lifespan (NOx)
100,000 miles
Available Specifications
Oxygen (O2) Sensors
This section covers the oxygen sensors used in the 2014-2021 Mercedes-Benz C-Class. These sensors are critical for monitoring the oxygen levels in the exhaust gases, which helps the engine control unit (ECU) adjust the air-fuel mixture for optimal combustion and reduced emissions.
Oxygen (O2) Sensors
This section covers the oxygen sensors used in the 2014-2021 Mercedes-Benz C-Class. These sensors are critical for monitoring the oxygen levels in the exhaust gases, which helps the engine control unit (ECU) adjust the air-fuel mixture for optimal combustion and reduced emissions.
Location and Function
- Located in the exhaust system, upstream and downstream of the catalytic converter.
- Measures the oxygen content in the exhaust gases.
- Provides real-time feedback to the ECU for air-fuel ratio adjustments.
- Helps in detecting catalytic converter efficiency.
Maintenance and Troubleshooting
- Regularly check for contamination or damage.
- Replace sensors every 60,000-90,000 miles or as recommended.
- Common issues include slow response time and faulty readings.
- Use diagnostic tools to check for error codes related to O2 sensors.
Nitrogen Oxide (NOx) Sensors
This section provides information on the NOx sensors used in the 2014-2021 Mercedes-Benz C-Class. These sensors are essential for monitoring and controlling nitrogen oxide emissions, which are harmful pollutants.
Nitrogen Oxide (NOx) Sensors
This section provides information on the NOx sensors used in the 2014-2021 Mercedes-Benz C-Class. These sensors are essential for monitoring and controlling nitrogen oxide emissions, which are harmful pollutants.
Location and Function
- Located in the exhaust system, typically after the catalytic converter.
- Measures the concentration of nitrogen oxides in the exhaust gases.
- Provides data to the ECU for optimizing the exhaust gas recirculation (EGR) system.
- Helps in ensuring compliance with emission standards.
Maintenance and Troubleshooting
- Inspect for soot buildup or damage regularly.
- Replace sensors every 100,000 miles or as recommended.
- Common issues include sensor drift and signal loss.
- Use diagnostic tools to check for NOx sensor-related error codes.
Particulate Matter (PM) Sensors
This section details the particulate matter sensors used in the 2014-2021 Mercedes-Benz C-Class. These sensors are crucial for monitoring the levels of soot and other particulates in the exhaust gases, especially in diesel engines.
Particulate Matter (PM) Sensors
This section details the particulate matter sensors used in the 2014-2021 Mercedes-Benz C-Class. These sensors are crucial for monitoring the levels of soot and other particulates in the exhaust gases, especially in diesel engines.
Location and Function
- Located in the exhaust system, near the diesel particulate filter (DPF).
- Measures the concentration of particulate matter in the exhaust gases.
- Provides data to the ECU for DPF regeneration cycles.
- Helps in maintaining low particulate emissions.
Maintenance and Troubleshooting
- Regularly check for soot accumulation or damage.
- Replace sensors every 120,000 miles or as recommended.
- Common issues include clogging and signal interference.
- Use diagnostic tools to check for PM sensor-related error codes.
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Component Specifications
Overview
- Type
- Oxygen (O2) and NOx sensors
- Configuration
- Dual-channel, upstream and downstream
- Platform
- Modular sensor design
- Material
- High-temperature ceramic
- Location
- Exhaust system, pre and post-catalytic converter
Dimensions
- Length
- 2.36 in (60 mm)
- Width
- 0.98 in (25 mm)
- Height
- 1.18 in (30 mm)
- Thread Diameter
- M18 x 1.5
- Cable Length
- 23.62 in (600 mm)
- Operating Temperature
- -40°F to 1472°F (-40°C to 800°C)
- Weight
- 0.22 lb (100 g)
Materials
- Sensor Body
- Stainless steel 304
- Sensing Element
- Zirconium dioxide ceramic
- Heater Element
- Platinum wire
- Cable insulation
- Silicone rubber
Features
- Performance
-
- Fast response time (< 100 ms)
- Wide operating temperature range
- High accuracy (±1.5% of reading)
- Compatibility
-
- OBD-II compliant
- CAN bus communication
- Direct fit for Mercedes C-Class
- Durability
-
- Corrosion-resistant housing
- Shock and vibration resistant
- Designed for 150,000+ miles
- installation
-
- Threaded mounting design
- Quick-connect electrical harness
- Pre-calibrated for plug-and-play
Safety Features
- Overheat Protection
- Automatic shutdown at 1472°F
- Electrical Safety
-
- Short-circuit protection
- Reverse polarity protection
- Environmental Protection
- Sealed against moisture and dust
Comfort Features
- Noise Reduction
- Minimal operational noise
- Maintenance Ease
-
- Tool-free access
- Self-diagnostic capability
- integration
- Seamless ECU communication
Accessories
- installation Tools
-
- O2 sensor socket
- Anti-seize compound
- Wire harness adapters
- Replacement Parts
-
- Sensor gaskets
- Protective caps
- Extension cables
- Diagnostic Equipment
-
- OBD-II scanner
- Multimeter
- Signal simulator
Maintenance
- Service interval
- Every 60,000 miles or 5 years
- Service Items
-
- Inspect sensor for contamination
- Check electrical connections
- Test sensor response time
- Verify ECU error codes
- Replace if performance degraded
- Maintenance Notes
- Avoid using silicone-based sealants near the sensor
Warranty
- Standard Warranty
- Miles: 50,000Years: 2Coverage: Manufacturing defects
- Extended Warranty
- Miles: 100,000Years: 4Coverage: Parts and labor
- Corrosion Warranty
- Miles: UnlimitedYears: 10Coverage: Sensor housing corrosion
- Warranty Terms
- Non-transferable, requires professional installation
Production Details
- Manufacturer
- Bosch GmbH
- Manufacturing Process
-
- Precision ceramic molding
- Automated assembly
- Laser welding
- Quality Control
- Testing: Thermal cycling, Vibration testing, Electrical performanceCertifications: ISO/TS 16949, ISO 14001
- Sustainability Practices
-
- Recyclable materials
- Low-emission production
- Energy-efficient manufacturing
- Production Metrics
- Units Per Year: 1,500,000Defect Rate: < 0.1%Lead Time: 4 weeks
Service Information for emissions_sensors Service
Maintenance and service requirements specific to emissions sensors
- Inspect sensor for physical damage
- Check electrical connections for corrosion
- Verify sensor response using diagnostic tool
- Clean sensor mounting threads
Avoid using impact tools during inspection
- Test sensor heater circuit resistance
- Verify signal voltage output
- Inspect exhaust system for leaks
- Check for contamination on sensor tip
Replace sensor if contamination is severe
- Perform full diagnostic scan
- Test sensor response under load
- Replace sensor if performance is degraded
- Inspect and replace wiring harness if needed
Use manufacturer-recommended replacement parts
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Are the emissions sensors compatible with all 2014-2021 Mercedes C-Class models?
Are the emissions sensors compatible with all 2014-2021 Mercedes C-Class models?
The emissions sensors are designed to be compatible with all 2014-2021 Mercedes C-Class models, including both gasoline and diesel variants. These sensors meet OEM specifications and are engineered to integrate seamlessly with the vehicle's onboard diagnostics (OBD) system. However, it is recommended to verify the specific part number and model year compatibility to ensure proper fit and functionality.
Q2 What maintenance is required for emissions sensors in the Mercedes C-Class?
What maintenance is required for emissions sensors in the Mercedes C-Class?
Regular maintenance of emissions sensors involves periodic inspection for contamination, damage, or wear. Cleaning the sensor tip during routine service intervals is recommended to prevent buildup of soot or oil deposits. Additionally, ensure the sensor's electrical connections remain secure and free of corrosion. Replacement is typically required every 60,000 to 100,000 miles, depending on driving conditions and sensor performance.
Q3 How do I install or replace emissions sensors in a Mercedes C-Class?
How do I install or replace emissions sensors in a Mercedes C-Class?
To install or replace emissions sensors, first, locate the sensor on the exhaust system. Disconnect the electrical connector and use an appropriate wrench to remove the old sensor. Apply anti-seize compound to the threads of the new sensor and install it by hand to avoid cross-threading. Tighten to the specified torque value, reconnect the electrical connector, and clear any diagnostic trouble codes using an OBD-II scanner.
Q4 What should I do if the emissions sensor triggers a warning light?
What should I do if the emissions sensor triggers a warning light?
If the emissions sensor triggers a warning light, start by using an OBD-II scanner to retrieve the specific trouble code. Common issues include sensor contamination, faulty wiring, or a failing sensor. Inspect the sensor for damage or buildup and clean or replace it if necessary. Check the wiring harness for breaks or corrosion. If the issue persists, consult a professional technician for further diagnosis.
Q5 How can I optimize the performance of emissions sensors?
How can I optimize the performance of emissions sensors?
To optimize emissions sensor performance, ensure the vehicle's engine is running efficiently by maintaining proper air-fuel ratios and regularly servicing the fuel and ignition systems. Avoid using low-quality fuel or additives that can contaminate the sensor. Keep the exhaust system free of leaks, which can cause inaccurate readings. Regularly monitor sensor data using diagnostic tools to detect early signs of degradation.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Mercedes C-Class Emissions Sensor Service Manual
Coming SoonThis manual provides detailed instructions for servicing and replacing emissions sensors in 2014-2021 Mercedes C-Class vehicles, including technical specifications and troubleshooting tips.
Technical Service Bulletin: Emissions Sensor Updates
Coming SoonThis bulletin outlines updates and improvements for emissions sensors in Mercedes C-Class models, including software enhancements and compatibility notes.
Mercedes C-Class Emissions Sensor Parts Catalog
Coming SoonA comprehensive catalog listing all emissions sensor parts for 2014-2021 Mercedes C-Class models, including part numbers and compatibility information.
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