Mercedes-Benz Mercedes CLS 2010-2017 Emissions & Sensors Specifications
Explore detailed specifications for emissions sensors in the 2010-2017 Mercedes-Benz CLS. Learn about sensor types, locations, and functions for diagnostics, repairs, and performance optimization.
Overview Specifications
This document provides detailed specifications and technical information about the emissions sensors used in Mercedes-Benz CLS models from 2010 to 2017. It is designed to assist technicians, engineers, and enthusiasts in understanding the functionality, maintenance, and troubleshooting of these sensors. Use the search and navigation instructions to quickly locate specific details or browse through sections for comprehensive insights.
How to Use
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Scroll through the document or use the table of contents to jump to specific sections. Each section is organized into subsections with detailed technical points for easy reference.
Key Specifications
O2 Sensor Operating Temperature
600-800°C
NOx Sensor Response Time
< 2 seconds
PM Sensor Accuracy
±5%
Sensor Lifespan
100,000-150,000 miles
Replacement Cost
$200-$500 per sensor
Available Specifications
Oxygen (O2) Sensors
Oxygen sensors, also known as O2 sensors, are critical components in the emissions control system. They monitor the oxygen levels in the exhaust gases to ensure optimal fuel-air mixture and reduce harmful emissions. This section covers their types, locations, and maintenance requirements.
Oxygen (O2) Sensors
Oxygen sensors, also known as O2 sensors, are critical components in the emissions control system. They monitor the oxygen levels in the exhaust gases to ensure optimal fuel-air mixture and reduce harmful emissions. This section covers their types, locations, and maintenance requirements.
Types of O2 Sensors
- Wideband O2 sensors for precise air-fuel ratio measurement
- Narrowband O2 sensors for basic feedback
- Upstream sensors located before the catalytic converter
- Downstream sensors located after the catalytic converter
- Heated O2 sensors for faster warm-up times
- Zirconia and Titania sensor variants
Maintenance and Troubleshooting
- Regular inspection every 60,000 miles
- Check for contamination from oil or coolant leaks
- Diagnose using OBD-II codes for sensor malfunctions
- Replace sensors showing slow response times
- Ensure proper wiring and connections
- Use OEM or high-quality aftermarket replacements
Nitrogen Oxide (NOx) Sensors
NOx sensors are essential for monitoring and controlling nitrogen oxide emissions, particularly in diesel engines. This section explains their role, operation, and common issues encountered in Mercedes CLS models.
Nitrogen Oxide (NOx) Sensors
NOx sensors are essential for monitoring and controlling nitrogen oxide emissions, particularly in diesel engines. This section explains their role, operation, and common issues encountered in Mercedes CLS models.
Function and Operation
- Measure NOx levels in exhaust gases
- Provide feedback to the engine control unit (ECU)
- Enable selective catalytic reduction (SCR) systems
- Operate at high temperatures for accuracy
- Monitor both pre- and post-catalyst emissions
- Require periodic calibration
Common Issues and Solutions
- Sensor degradation due to soot buildup
- Faulty readings caused by exhaust leaks
- Diagnose using specific NOx-related OBD-II codes
- Replace sensors with OEM parts for compatibility
- Clean sensors during routine maintenance
- Check for software updates from Mercedes
Particulate Matter (PM) Sensors
Particulate matter sensors are used in diesel engines to monitor soot levels in the exhaust. This section covers their design, functionality, and maintenance practices.
Particulate Matter (PM) Sensors
Particulate matter sensors are used in diesel engines to monitor soot levels in the exhaust. This section covers their design, functionality, and maintenance practices.
Design and Functionality
- Measure soot concentration in exhaust gases
- Integrate with diesel particulate filters (DPF)
- Provide data for DPF regeneration cycles
- Operate under high-temperature conditions
- Use advanced algorithms for accurate readings
- Require minimal calibration
Maintenance Tips
- Inspect during DPF maintenance intervals
- Clean sensors to prevent soot buildup
- Replace sensors showing erratic readings
- Ensure proper electrical connections
- Use diagnostic tools for performance checks
- Follow Mercedes service guidelines
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Component Specifications
Overview
- Type
- Oxygen (O2) and Nitrogen Oxide (NOx) sensors
- Configuration
- Dual-sensor system (upstream and downstream)
- Platform
- Integrated with Mercedes-Benz engine control unit (ECU)
- Material
- High-temperature ceramic and stainless steel
- Location
- Exhaust system (pre-catalytic and post-catalytic converter)
Dimensions
- Sensor Length
- 3.15 inches (80 mm)
- Sensor Diameter
- 0.79 inches (20 mm)
- Thread Size
- M18 x 1.5
- Cable Length
- 23.62 inches (600 mm)
- Operating Temperature
- -40°F to 1562°F (-40°C to 850°C)
- Weight
- 0.22 lbs (100 g)
- Voltage Range
- 0.1V to 0.9V
Materials
- Sensor Body
- Stainless steel
- Sensor Element
- Zirconium dioxide ceramic
- Protective Tube
- Aluminum oxide ceramic
- Cable insulation
- High-temperature silicone
- Connector
- Thermoplastic
Features
- Performance
-
- Real-time exhaust gas analysis
- Wide-range lambda detection
- High accuracy in lean and rich conditions
- Fast response time (<100 ms)
- Durability
-
- Resistant to thermal shock
- Corrosion-resistant housing
- Sealed against moisture and contaminants
- Long lifespan (up to 100,000 miles)
- integration
-
- CAN bus communication
- Self-diagnostic capabilities
- Adaptive learning for fuel trim
- Compatible with Mercedes-Benz STAR Diagnostic System
- Environmental
-
- Compliant with Euro 5 and Euro 6 standards
- Low power consumption
- Recyclable materials
- Reduced emissions output
Safety Features
- Electrical Safety
-
- Short-circuit protection
- Overvoltage protection
- Thermal Protection
-
- Heat-resistant shielding
- Automatic shutdown at critical temperatures
- Mechanical Safety
-
- Vibration-resistant design
- Impact-resistant housing
Comfort Features
- installation
-
- Plug-and-play design
- Tool-free connector
- Pre-calibrated for easy replacement
- Operation
-
- Quiet operation
- Minimal maintenance required
- No user intervention needed
Accessories
- Replacement Parts
-
- O2 sensor socket tool
- Anti-seize compound
- Replacement gaskets
- Diagnostic Tools
-
- STAR Diagnostic System
- OBD-II scanner
- Multimeter
- Cleaning Supplies
-
- Sensor-safe cleaner
- Compressed air
- Lint-free cloth
Maintenance
- Service interval
- Every 60,000 miles or 5 years
- Service Items
-
- Inspect sensor wiring
- Check for exhaust leaks
- Test sensor output voltage
- Clean sensor tip (if accessible)
- Replace if fault codes are present
- Maintenance Notes
- Avoid using silicone-based sealants near the sensor.
Warranty
- Standard Warranty
- Miles: 50,000Years: 4Coverage: Defects in materials and workmanship
- Extended Warranty
- Miles: 100,000Years: 7Coverage: Sensor failure due to normal wear
- Emissions Warranty
- Miles: 80,000Years: 8Coverage: Compliance with federal emissions standards
- Warranty Terms
- Excludes damage from improper installation or contamination.
Production Details
- Manufacturer
- Bosch GmbH
- Manufacturing Process
-
- Precision ceramic molding
- Laser welding
- Automated calibration
- Quality Control
- Testing: Thermal cycling, Vibration testing, Electrical performance validationCertifications: ISO 9001, ISO 14001, OEM standards compliance
- Sustainability Practices
-
- Use of recycled materials
- Energy-efficient production
- Waste reduction initiatives
- Production Metrics
- Annual Output: 2 million unitsDefect Rate: <0.1%Lead Time: 4 weeks
Service Information for emissions_sensors Service
Maintenance and service requirements specific to this component
- Inspect sensor wiring for damage
- Check for exhaust leaks near the sensor
- Test sensor output voltage using diagnostic tool
- Clean sensor tip with sensor-safe cleaner
Ensure the engine is cool before inspection.
- Perform full diagnostic scan for fault codes
- Verify sensor response time
- Check for contamination or fouling
- Replace sensor if performance is degraded
Use OEM replacement parts for optimal performance.
- Replace both upstream and downstream sensors
- Inspect and replace exhaust gaskets if necessary
- Perform post-replacement calibration
- Verify emissions compliance
Critical to ensure proper torque during installation.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Are the emissions sensors compatible with all 2010-2017 Mercedes CLS models?
Are the emissions sensors compatible with all 2010-2017 Mercedes CLS models?
The emissions sensors for the 2010-2017 Mercedes CLS are designed to be compatible with all variants within this model range, including the CLS 350, CLS 500, and CLS 63 AMG. These sensors are engineered to meet the specific emissions standards and engine configurations of each model. However, it is recommended to verify the exact part number and compatibility with your vehicle's VIN to ensure proper fitment and functionality.
Q2 What maintenance is required for emissions sensors in a Mercedes CLS?
What maintenance is required for emissions sensors in a Mercedes CLS?
Emissions sensors in the 2010-2017 Mercedes CLS require minimal maintenance but should be inspected during routine service intervals. Check for signs of wear, contamination, or damage every 30,000 miles. Ensure the sensors are clean and free from debris. If the vehicle's check engine light is triggered, a diagnostic scan should be performed to identify any sensor-related issues. Replacement is typically only necessary if the sensor fails or becomes unresponsive.
Q3 How do I replace the emissions sensors in a 2010-2017 Mercedes CLS?
How do I replace the emissions sensors in a 2010-2017 Mercedes CLS?
To replace the emissions sensors, first, locate the sensors near the exhaust system. Disconnect the battery to ensure safety. Use a wrench to remove the old sensor, being careful not to damage the threads. Install the new sensor by threading it in by hand to avoid cross-threading, then tighten it with a wrench. Reconnect the electrical connector and the battery. Finally, clear any error codes using an OBD-II scanner to ensure proper functionality.
Q4 What should I do if my emissions sensor is malfunctioning?
What should I do if my emissions sensor is malfunctioning?
If your emissions sensor is malfunctioning, start by using an OBD-II scanner to read the error codes. Common issues include faulty wiring, contamination, or sensor failure. Inspect the sensor and its connections for damage or corrosion. Clean the sensor if it is dirty. If the problem persists, replace the sensor. Ensure the replacement part matches the original specifications to avoid further issues.
Q5 How can I optimize the performance of my emissions sensors?
How can I optimize the performance of my emissions sensors?
To optimize emissions sensor performance, ensure your vehicle's engine is running efficiently. Regularly replace air filters, spark plugs, and fuel injectors as needed. Use high-quality fuel to reduce sensor contamination. Keep the exhaust system in good condition to prevent leaks or blockages. Periodically check the sensor's electrical connections and clean them if necessary. Following these steps will help maintain accurate sensor readings and improve overall vehicle performance.
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 CLS Emissions Sensor Service Manual
Coming SoonThis manual provides detailed instructions for diagnosing, maintaining, and replacing emissions sensors in 2010-2017 Mercedes CLS models.
Technical Service Bulletin: Emissions Sensor Updates
Coming SoonThis bulletin outlines updates and improvements to emissions sensors for 2010-2017 Mercedes CLS vehicles, including compatibility and installation notes.
Mercedes CLS Emissions Sensor Parts Catalog
Coming SoonA comprehensive catalog listing all emissions sensor parts and accessories for 2010-2017 Mercedes CLS models, including part numbers and compatibility details.
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