Mercedes-Benz Mercedes C-Class 2000-2007 Emissions & Sensors Specifications
Explore detailed specifications for emissions sensors in 2000-2007 Mercedes C-Class vehicles. Learn about sensor types, placement, and compatibility for optimal emissions control and engine performance.
Overview Specifications
This document provides detailed specifications and technical information about the emissions sensors used in Mercedes-Benz C-Class vehicles manufactured between 2000 and 2007. 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 information.
How to Use
Use the search bar to enter keywords related to emissions sensors, such as 'O2 sensor' or 'catalytic converter'. The results will highlight relevant sections and subsections.
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Key Specifications
O2 Sensor Voltage Range
0.1-0.9 V
Catalytic Converter Efficiency
>90%
Exhaust Gas Temp Range
200-900°C
Sensor Replacement Interval
60,000-90,000 miles
Diagnostic Error Codes
P0420, P0430
Available Specifications
Oxygen (O2) Sensors
Oxygen sensors are critical components in the emissions control system, measuring the oxygen content in the exhaust gases. This section covers their types, locations, and functions in the 2000-2007 Mercedes C-Class.
Oxygen (O2) Sensors
Oxygen sensors are critical components in the emissions control system, measuring the oxygen content in the exhaust gases. This section covers their types, locations, and functions in the 2000-2007 Mercedes C-Class.
Types of O2 Sensors
- Zirconia-based sensors for precise oxygen level detection
- Wideband sensors for improved accuracy in fuel mixture control
- Upstream sensors located before the catalytic converter
- Downstream sensors located after the catalytic converter
Common Issues and Maintenance
- Symptoms of a failing O2 sensor include poor fuel economy and increased emissions
- Regular inspection every 60,000-90,000 miles is recommended
- Replacement requires specialized tools and diagnostic equipment
- Ensure compatibility with the vehicle's engine control unit (ECU)
Catalytic Converter Sensors
Catalytic converter sensors monitor the efficiency of the catalytic converter, ensuring compliance with emissions standards. This section explains their role and troubleshooting methods.
Catalytic Converter Sensors
Catalytic converter sensors monitor the efficiency of the catalytic converter, ensuring compliance with emissions standards. This section explains their role and troubleshooting methods.
Function and Importance
- Monitors the efficiency of the catalytic converter
- Detects excessive emissions and triggers warning lights
- Essential for passing emissions tests
- Works in conjunction with O2 sensors
Troubleshooting Tips
- Check for error codes related to catalytic converter efficiency
- Inspect for physical damage or clogging
- Verify proper functioning of upstream and downstream O2 sensors
- Replace the sensor if diagnostics confirm failure
Exhaust Gas Temperature Sensors
Exhaust gas temperature sensors prevent overheating and damage to the exhaust system. This section covers their operation and maintenance.
Exhaust Gas Temperature Sensors
Exhaust gas temperature sensors prevent overheating and damage to the exhaust system. This section covers their operation and maintenance.
Role in Emissions Control
- Monitors exhaust gas temperature to prevent overheating
- Protects the catalytic converter and other components
- Provides data to the ECU for optimal engine performance
- Critical for diesel engines with particulate filters
Maintenance and Replacement
- Inspect during routine emissions system checks
- Replace if readings are inconsistent or out of range
- Ensure proper calibration after replacement
- Use OEM parts for compatibility
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Component Specifications
Overview
- Type
- Oxygen (O2) Sensor
- Configuration
- Upstream and downstream placement
- Platform
- Mercedes-Benz C-Class (W203)
- Material
- Ceramic sensing element, stainless steel housing
- Location
- Integrated into exhaust system
Dimensions
- Length
- 3.5 inches / 89 mm
- Diameter
- 0.75 inches / 19 mm
- Thread Size
- M18 x 1.5
- Wire Length
- 24 inches / 610 mm
- Sensor Probe Length
- 1.5 inches / 38 mm
- Weight
- 0.22 lbs / 100 g
- Operating Temperature
- -40 to 900°F / -40 to 482°C
Materials
- Sensing Element
- Zirconium dioxide ceramic
- Housing
- Stainless steel
- Wiring
- High-temperature silicone-insulated copper
- Seals
- PTFE (Polytetrafluoroethylene)
Features
- Performance
-
- Real-time exhaust gas monitoring
- Wide operating temperature range
- Fast response time (less than 100ms)
- High accuracy (±1% of reading)
- Durability
-
- Corrosion-resistant housing
- Shock and vibration resistant
- Long service life (up to 100,000 miles)
- Compatibility
-
- Direct-fit for W203 platform
- OBD-II compliant
- Works with Mercedes-Benz ECU systems
- installation
-
- Threaded mounting design
- Integrated wiring harness
- No calibration required
- Environmental
-
- Low power consumption
- RoHS compliant
- Recyclable materials
Safety Features
- Electrical
-
- Short-circuit protection
- Overvoltage protection
- Thermal
-
- High-temperature insulation
- Heat-resistant seals
- Mechanical
-
- Vibration-resistant design
- Impact-resistant housing
Comfort Features
- Driveability
-
- Optimizes engine performance
- Reduces emissions for smoother operation
- Noise
-
- Minimal operational noise
- Dampens exhaust resonance
- Maintenance
-
- Easy access for replacement
- No special tools required
- Environmental
-
- Reduces harmful emissions
- Improves fuel efficiency
Accessories
- installation
-
- O2 sensor socket
- Anti-seize compound
- Wire loom clips
- Testing
-
- OBD-II scanner
- Multimeter
- Diagnostic software
- Replacement Parts
-
- Sensor gasket
- Wiring harness adapter
- Heat shield
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 mounting area
- Replace if response time exceeds 200ms
- Notes
- Avoid using silicone-based sealants near the sensor
Warranty
- Standard
- Miles: 50,000Years: 2Coverage: Manufacturing defects
- Extended
- Miles: 100,000Years: 5Coverage: Full replacement
- Labor
- Miles: 12,000Years: 1Coverage: Installation costs
- Terms
- Warranty void if sensor is damaged due to improper installation or exhaust system issues
Production Details
- Manufacturer
- Bosch Automotive
- Manufacturing Process
-
- Precision ceramic molding
- Laser welding
- Automated quality testing
- Quality Control
- Electrical Testing: 100% tested for voltage accuracyLeak Testing: Helium leak detectionDurability Testing: Simulated 150,000 miles of operation
- Sustainability Practices
-
- Recycled materials in housing
- Energy-efficient production
- Zero-waste packaging
- Production Metrics
-
- Annual output: 2 million units
- Defect rate: <0.1%
- Production time: 15 minutes per unit
Service Information for emissions_sensors Service
Maintenance and service requirements specific to the O2 sensor system
- Inspect sensor wiring for damage
- Check for exhaust leaks near sensor
- Test sensor response time
- Clean sensor mounting threads
- Verify ECU error codes
Early inspection can prevent performance issues
- Replace upstream O2 sensor
- Test downstream sensor performance
- Inspect wiring harness connectors
- Check for corrosion on sensor housing
- Verify fuel trim levels
Use anti-seize compound during replacement
- Replace both upstream and downstream sensors
- Perform full exhaust system inspection
- Test ECU sensor calibration
- Check for catalytic converter efficiency
- Verify emissions compliance
Consider replacing both sensors simultaneously for optimal performance
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Are the emissions sensors compatible with all 2000-2007 Mercedes C-Class models?
Are the emissions sensors compatible with all 2000-2007 Mercedes C-Class models?
The emissions sensors for the 2000-2007 Mercedes C-Class are compatible with most models within this range, including the C180, C200, C230, and C320. However, specific compatibility depends on the engine type and emissions system configuration. Always verify the part number and consult your vehicle’s technical specifications or a Mercedes-Benz dealer to ensure proper fitment.
Q2 What are the maintenance requirements for emissions sensors?
What are the maintenance requirements for emissions sensors?
Emissions sensors in the 2000-2007 Mercedes C-Class require regular inspection as part of routine maintenance. Check sensor functionality during annual emissions testing or when the Check Engine light appears. Replace sensors every 100,000 miles or sooner if performance issues arise. Ensure proper cleaning of surrounding components to prevent contamination.
Q3 How do I replace the emissions sensor in my 2000-2007 Mercedes C-Class?
How do I replace the emissions sensor in my 2000-2007 Mercedes C-Class?
To replace the emissions sensor, locate the sensor near the exhaust system. Disconnect the electrical connector and use a specialized oxygen sensor socket to remove the old sensor. Apply anti-seize compound to the threads of the new sensor, then carefully install and tighten it. Reconnect the electrical connector and clear any error codes using a diagnostic tool.
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 malfunctions, first check for visible damage or contamination. Use a diagnostic scanner to retrieve error codes. Common issues include wiring faults, sensor contamination, or exhaust leaks. Replace the sensor if necessary and ensure proper installation. If problems persist, consult a professional mechanic for a thorough diagnostic.
Q5 How can I optimize the performance of my emissions sensor?
How can I optimize the performance of my emissions sensor?
To optimize emissions sensor performance, ensure your vehicle’s engine is properly tuned, and use high-quality fuel. Regularly inspect and clean the sensor to prevent contamination. Avoid oil or coolant leaks that can damage the sensor. Follow the manufacturer’s maintenance schedule and replace the sensor at recommended intervals.
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 System Service Manual
Coming SoonThis manual provides detailed instructions for diagnosing, maintaining, and repairing the emissions system in 2000-2007 Mercedes C-Class models.
Technical Service Bulletin: Emissions Sensor Updates
Coming SoonThis bulletin outlines updates and improvements to emissions sensors for 2000-2007 Mercedes C-Class vehicles, including compatibility and installation notes.
Mercedes C-Class Parts and Accessories Catalog
Coming SoonThis catalog lists genuine emissions sensors and related components for 2000-2007 Mercedes C-Class models, including part numbers and descriptions.
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