Mercedes-Benz Mercedes SLK 2004-2010 Emissions & Sensors Specifications
Detailed technical specifications for the emissions sensors in the 2004-2010 Mercedes SLK. Includes sensor types, locations, functions, and compatibility for diagnostics, repair, and maintenance.
Overview Specifications
This document provides detailed specifications and technical information about the emissions sensors used in Mercedes SLK models from 2004 to 2010. 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 that cover sensor types, locations, diagnostic procedures, and key specifications. Use the search and navigation instructions to quickly find the information you need.
How to Use
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Navigate through the document using the table of contents or by scrolling through the sections. Each section is clearly labeled with a title and description to help you find the information you need efficiently.
Key Specifications
O2 Sensor Voltage Range
0.1-0.9 V
Operating Temperature
600-800 °C
Catalytic Converter Efficiency
≥ 90%
Sensor Response Time
< 100 ms
Replacement Interval
80,000-100,000 miles
Available Specifications
Sensor Types and Functions
This section provides an overview of the different types of emissions sensors used in the 2004-2010 Mercedes SLK, including their functions and roles in the vehicle's emissions control system.
Sensor Types and Functions
This section provides an overview of the different types of emissions sensors used in the 2004-2010 Mercedes SLK, including their functions and roles in the vehicle's emissions control system.
Oxygen (O2) Sensors
- Monitors oxygen levels in exhaust gases
- Provides feedback to the engine control unit (ECU)
- Helps optimize air-fuel mixture
- Typically located before and after the catalytic converter
- May have heated elements for faster operation
- Can fail due to contamination or wear
Catalytic Converter Sensors
- Monitors the efficiency of the catalytic converter
- Detects harmful emissions levels
- Sends data to the ECU for adjustments
- Located downstream of the catalytic converter
- Critical for passing emissions tests
- May trigger a check engine light if faulty
Sensor Locations
This section details the physical locations of emissions sensors in the 2004-2010 Mercedes SLK, helping technicians identify and access them for maintenance or replacement.
Sensor Locations
This section details the physical locations of emissions sensors in the 2004-2010 Mercedes SLK, helping technicians identify and access them for maintenance or replacement.
O2 Sensor Locations
- Pre-catalytic converter sensor located near the exhaust manifold
- Post-catalytic converter sensor located after the catalytic converter
- Sensors are accessible from underneath the vehicle
- May require removal of heat shields for access
- Wiring harnesses are routed along the exhaust system
- Sensors are threaded into the exhaust pipe
Catalytic Converter Sensor Location
- Located at the rear of the catalytic converter
- Accessible from the vehicle's undercarriage
- Mounted directly into the exhaust pipe
- Wiring harness connects to the ECU
- May require special tools for removal
- Position varies slightly by model year
Diagnostic Procedures
This section outlines the steps for diagnosing issues with emissions sensors in the 2004-2010 Mercedes SLK, including the use of diagnostic tools and error codes.
Diagnostic Procedures
This section outlines the steps for diagnosing issues with emissions sensors in the 2004-2010 Mercedes SLK, including the use of diagnostic tools and error codes.
Using Diagnostic Tools
- Connect an OBD-II scanner to the vehicle's port
- Retrieve error codes related to emissions sensors
- Interpret codes to identify faulty sensors
- Check sensor wiring and connectors for damage
- Perform live data monitoring to assess sensor performance
- Clear error codes after repairs are completed
Common Error Codes
- P0130 - O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)
- P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
- P0420 - Catalyst System Efficiency Below Threshold
- P0430 - Catalyst System Efficiency Below Threshold (Bank 2)
- P0135 - O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
- P0150 - O2 Sensor Circuit Malfunction (Bank 2 Sensor 1)
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Component Specifications
Overview
- Type
- Oxygen (O2) and NOx sensors
- Configuration
- Dual-sensor system
- Platform
- Integrated with ECU
- Material
- Ceramic and stainless steel
- Location
- Exhaust system pre and post-catalytic converter
Dimensions
- Length
- 4.5 inches / 114.3 mm
- Diameter
- 0.75 inches / 19.05 mm
- Thread Size
- M18 x 1.5
- Wire Length
- 24 inches / 609.6 mm
- Operating Temperature
- -40°C to 900°C / -40°F to 1652°F
- Voltage Range
- 0.1V to 1.0V
- Response Time
- 0.2 seconds
Materials
- Sensor Element
- Zirconia ceramic
- Housing
- Stainless steel 304
- Sealing
- PTFE gasket
- Wiring
- High-temperature silicone
Features
- Monitoring
-
- O2 levels
- NOx levels
- Exhaust gas temperature
- Catalytic converter efficiency
- Communication
-
- CAN bus integration
- Real-time data transmission
- Fault code generation
- Durability
-
- Corrosion-resistant housing
- Thermal shock resistance
- Vibration resistance
- Performance
-
- Fast response time
- High accuracy
- Wide operating range
- Safety
-
- Overheat protection
- Short-circuit protection
- Fail-safe mode
Safety Features
- Electrical
-
- Insulated wiring
- Surge protection
- Mechanical
-
- Robust housing
- Secure mounting
- Operational
-
- Auto-calibration
- Error detection
Comfort Features
- installation
-
- Easy access
- Tool-free wiring harness
- Maintenance
-
- Self-diagnostic
- Modular design
- Operation
-
- Silent operation
- Low power consumption
Accessories
- Mounting
-
- Hex nut
- Anti-seize compound
- Gasket
- Wiring
-
- Connector kit
- Wire loom
- Heat shield
- Tools
-
- O2 sensor socket
- Torque wrench
- Multimeter
Maintenance
- Service interval
- Every 60,000 miles / 96,000 km
- Service Items
-
- Sensor inspection
- Wiring check
- Connector cleaning
- Performance test
- Replacement if faulty
- Maintenance Notes
- Use only OEM sensors for optimal performance
Warranty
- Standard
- Miles: 50,000Years: 2Coverage: Parts and labor
- Extended
- Miles: 100,000Years: 5Coverage: Parts only
- Emissions
- Miles: 80,000Years: 8Coverage: Federal emissions compliance
- Terms
- Warranty void if non-OEM parts are used
Production Details
- Manufacturer
- Bosch GmbH
- Manufacturing Process
-
- Ceramic element sintering
- Laser welding
- Automated assembly
- Quality Control
- Testing: Pressure testing, Thermal cycling, Electrical validationCertification: ISO 9001, ISO 14001
- Sustainability
-
- Recyclable materials
- Low-emission production
- Energy-efficient manufacturing
- Production Metrics
- Annual Output: 1.5 million unitsDefect Rate: 0.01%
Service Information for emissions_sensors Service
Maintenance and service requirements specific to emissions sensors
- Inspect sensor wiring
- Check connector integrity
- Test sensor response time
- Clean sensor surface
Avoid using harsh chemicals for cleaning
- Verify sensor output voltage
- Inspect for corrosion
- Check for exhaust leaks
- Replace gasket if necessary
Use anti-seize compound during reinstallation
- Replace sensor as preventive maintenance
- Test catalytic converter efficiency
- Check ECU sensor data
- Perform full system diagnostics
Ensure proper torque during sensor installation
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Are the emissions sensors compatible with all 2004-2010 Mercedes SLK models?
Are the emissions sensors compatible with all 2004-2010 Mercedes SLK models?
The emissions sensors for the 2004-2010 Mercedes SLK are designed to be compatible with all variants within this range, including the SLK200, SLK280, and SLK350. These sensors meet OEM specifications and are calibrated to work with the vehicle's onboard diagnostic (OBD) system. However, it is recommended to verify the specific part number and compatibility with your vehicle's VIN to ensure proper functionality.
Q2 What maintenance is required for emissions sensors in the 2004-2010 Mercedes SLK?
What maintenance is required for emissions sensors in the 2004-2010 Mercedes SLK?
Emissions sensors in the 2004-2010 Mercedes SLK require minimal maintenance. Regularly inspect the sensors during routine vehicle servicing to ensure they are free from dirt or debris. If the check engine light illuminates, have the sensors checked for faults. Replacement is typically only necessary if a sensor fails or provides inaccurate readings. Always use OEM or high-quality aftermarket sensors to maintain optimal performance.
Q3 How do I replace an emissions sensor in a 2004-2010 Mercedes SLK?
How do I replace an emissions sensor in a 2004-2010 Mercedes SLK?
To replace an emissions sensor, locate the faulty sensor, usually positioned along the exhaust system. Disconnect the electrical connector and use a wrench to remove the sensor. Clean the sensor port and install the new sensor, ensuring it is securely tightened. Reconnect the electrical connector and clear any error codes using an OBD scanner. Test the vehicle to confirm the replacement sensor is functioning correctly.
Q4 What should I do if my emissions sensor triggers a check engine light?
What should I do if my emissions sensor triggers a check engine light?
If the check engine light is triggered, use an OBD scanner to read the fault code. Common codes related to emissions sensors include P0135 (O2 sensor heater circuit malfunction) or P0420 (catalyst system efficiency below threshold). Inspect the sensor for damage or contamination. If the sensor is faulty, replace it. Ensure the wiring and connections are intact and free from corrosion.
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 the vehicle's engine is properly tuned and running efficiently. Use high-quality fuel and maintain the exhaust system to prevent leaks or blockages. Regularly inspect the sensors for contamination and replace them as needed. Keeping the vehicle's software updated can also improve sensor accuracy and overall emissions control.
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 SLK 2004-2010 Service Manual
Coming SoonDetailed service manual covering maintenance, repair, and troubleshooting for the 2004-2010 Mercedes SLK, including emissions system specifics.
Technical Service Bulletin: Emissions Sensor Updates
Coming SoonTSB outlining updates and fixes for emissions sensors in the 2004-2010 Mercedes SLK, including diagnostic procedures and replacement guidelines.
Mercedes SLK Parts Catalog 2004-2010
Coming SoonComprehensive parts catalog listing all components for the 2004-2010 Mercedes SLK, including emissions sensors and related parts.
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