Mercedes-Benz Mercedes SLC 2016-present

Mercedes-Benz Mercedes SLC 2016-present Emissions & Sensors Specifications

Explore detailed specifications for emissions sensors in 2016-Present Mercedes SLC models. This guide covers sensor types, locations, functions, and technical parameters essential for diagnostics and repair, ensuring optimal performance and compliance.

Updated Jan 24, 2025

Overview Specifications

This document provides detailed specifications and technical information about the emissions sensors in the 2016-Present Mercedes SLC. It includes sections on sensor types, functionality, maintenance, and troubleshooting. Use this guide to understand the emissions system, ensure compliance with environmental standards, and maintain optimal vehicle performance. The information is organized for easy navigation and quick reference.

How to Use

Use the search function to find specific terms or phrases related to emissions sensors. Enter keywords like 'O2 sensor' or 'catalytic converter' to locate relevant sections quickly.

Browse through the major sections using the table of contents. Each section is divided into subsections with detailed points. Click on a section title to expand and view its content.

Key Specifications

▲

O2 Sensor Lifespan

60,000-90,000 miles

■

NOx Sensor Calibration Interval

Every 50,000 miles

●

Particulate Matter Sensor Cleaning Interval

Every 30,000 miles

◆

Emission Standard Compliance

Euro 6 / Tier 3

★

Sensor Operating Temperature

-40°C to 900°C

Available Specifications

Sensor Types and Locations

This section covers the different types of emissions sensors used in the Mercedes SLC and their specific locations within the vehicle. Understanding these sensors helps in diagnosing issues and performing maintenance.

Oxygen Sensors

Located upstream and downstream of the catalytic converter.
Monitor oxygen levels in exhaust gases.
Provide feedback to the engine control unit (ECU).
Ensure optimal air-fuel ratio.
Typically have a lifespan of 60,000-90,000 miles.
Heated for faster response times.

NOx Sensors

Measure nitrogen oxide levels in exhaust.
Essential for selective catalytic reduction (SCR) systems.
Located downstream of the SCR catalyst.
Help reduce harmful emissions.
Require periodic calibration.
Sensitive to contamination.

Particulate Matter Sensors

Detect soot particles in diesel exhaust.
Located in the exhaust system.
Monitor diesel particulate filter (DPF) efficiency.
Trigger regeneration cycles when necessary.
Require cleaning during maintenance.
Essential for meeting Euro 6 standards.

Functionality and Integration

This section explains how emissions sensors integrate with the vehicle's engine management system and their role in maintaining emissions compliance.

Data Communication

Sensors transmit data via CAN bus.
Real-time monitoring of exhaust components.
Integration with the ECU for adaptive control.
Error codes stored in the OBD-II system.
Supports on-board diagnostics.
Enables emission system self-checks.

System Integration

Works with catalytic converters and DPFs.
Supports SCR and EGR systems.
Ensures compliance with emission standards.
Optimizes engine performance.
Reduces fuel consumption.
Minimizes environmental impact.

Maintenance and Troubleshooting

This section provides guidance on maintaining emissions sensors and diagnosing common issues to ensure long-term reliability and performance.

Routine Maintenance

Inspect sensors during regular service intervals.
Clean sensors to prevent contamination.
Check wiring and connectors for damage.
Replace sensors as per manufacturer guidelines.
Use OEM parts for replacements.
Reset ECU after sensor replacement.

Common Issues and Solutions

Fault codes indicating sensor malfunction.
Symptoms include poor fuel economy and increased emissions.
Check for exhaust leaks affecting sensor readings.
Replace faulty sensors promptly.
Ensure proper installation of new sensors.
Perform system recalibration if required.

Search Specifications

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Component Specifications

Overview

Type: Oxygen (O₂) and NOx sensors

Configuration: Dual-sensor system

Platform: CAN bus integration

Material: Zirconia ceramic sensing element

Location: Pre-catalytic converter and post-catalytic converter

Dimensions

Sensor Length: 78 mm (3.07 in)

Sensor Diameter: 18 mm (0.71 in)

Thread Size: M18 x 1.5

Cable Length: 450 mm (17.72 in)

Probe Length: 35 mm (1.38 in)

Operating Temperature: 200-850°C (392-1562°F)

Response Time: 0.2-0.3 seconds

Materials

Sensing Element: Zirconia ceramic with platinum electrodes

Housing: Stainless steel 304

Protective Tube: Stainless steel 316L

Cable insulation: FEP (Fluorinated Ethylene Propylene)

Sealing Gasket: Copper-plated steel

Features

Monitoring

Real-time O₂ concentration measurement
NOx level detection
Air-fuel ratio calculation
Catalyst efficiency monitoring

integration

CAN bus communication
On-board diagnostics (OBD-II)
ECU data exchange
Fault code storage

Performance

Wide operating temperature range
Fast response time
High accuracy (±1.5% of reading)
Long service life (up to 100,000 miles)

Protection

Waterproof housing
Chemical resistance
Thermal shock resistance
Vibration resistance

Safety Features

Fail Safe

Fault detection system
Warning light activation
Limp mode activation

Environmental

LEV III compliant
Low power consumption
Reduced emissions

Comfort Features

Operation

Silent operation
No maintenance required
Self-diagnosis capability

integration

Smooth engine performance
Optimal fuel efficiency
Reduced emissions

Accessories

installation

O₂ sensor socket wrench
Anti-seize compound
Thread chaser tool

Testing

Multimeter
OBD-II scanner
Sensor simulator

Maintenance

Service interval: 100,000 miles or 10 years

Service Items

Sensor condition inspection
Connector check
Mounting integrity verification
Signal quality analysis
Replacement if necessary

Notes: Avoid using silicone-based products near sensor

Warranty

Standard: Miles: 50,000
Years: 4
Coverage: Manufacturing defects

Emissions: Miles: 80,000
Years: 8
Coverage: Emissions-related components

Extended: Miles: 100,000
Years: 10
Coverage: Complete sensor replacement

Terms: Valid only with proper maintenance records

Production Details

Manufacturer: Bosch GmbH

Manufacturing Process

Ceramic element sintering
Precision machining
Laser welding
Quality testing

Quality Control: Temperature Testing: Full operational range
Durability Testing: Thermal cycling
Accuracy Verification: Calibration against standards

Sustainability

Recyclable materials
Low energy manufacturing
Reduced waste processes

Production Metrics: Annual Capacity: 5 million units
Defect Rate: 0.01%
Lead Time: 2 weeks

Service Information for emissions_sensors Service

Maintenance and service requirements specific to emissions sensors

30,000

Visual inspection of sensor and wiring
Check for fault codes
Verify signal strength
Inspect mounting integrity

First major check to ensure proper operation

60,000

Perform full diagnostic scan
Test sensor response time
Check for contamination
Verify heater circuit operation

Requires specialized diagnostic equipment

100,000

120

Consider sensor replacement
Perform complete emissions test
Check catalytic converter efficiency
Verify all related system parameters

Critical service interval for emissions compliance

Frequently Asked Questions

Find answers to common questions about torque specifications

Are the emissions sensors compatible with other Mercedes models?

The emissions sensors for the 2016-Present Mercedes SLC are specifically designed for this model. While some components may share compatibility with other Mercedes vehicles, it is essential to verify part numbers and specifications. The sensors are optimized for the SLC's engine management system, ensuring accurate emissions monitoring and compliance with environmental standards.

What maintenance is required for the emissions sensors?

Emissions sensors require regular inspection to ensure proper functionality. It is recommended to check the sensors during routine service intervals, typically every 10,000 miles. Maintenance includes cleaning the sensor probes, inspecting wiring for damage, and ensuring secure connections. Faulty sensors should be replaced promptly to maintain optimal performance and emissions compliance.

How do I replace the emissions sensors on a Mercedes SLC?

To replace the emissions sensors, first, locate the sensor(s) near the exhaust system. Disconnect the electrical connector and use a wrench to remove the sensor. Install the new sensor by threading it into place and tightening it to the specified torque. Reconnect the electrical connector and ensure proper seating. Clear any error codes using a diagnostic tool to confirm the replacement.

What should I do if the emissions sensor warning light comes on?

If the emissions sensor warning light activates, start by checking for loose or damaged wiring. Use a diagnostic tool to retrieve error codes and identify the specific issue. Common solutions include cleaning the sensor, replacing it if faulty, or addressing related engine problems. If the issue persists, consult a certified technician for further diagnostics.

How can I optimize the performance of the emissions sensors?

To optimize sensor performance, ensure the engine is running efficiently with regular maintenance. Use high-quality fuel and keep the exhaust system clean. Avoid excessive idling and maintain proper air-fuel ratios. Periodically inspect and calibrate the sensors as needed. These steps help ensure accurate emissions readings and prolong sensor lifespan.

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 SLC Emissions Sensor Service Manual

Coming Soon

This manual provides detailed instructions for servicing and maintaining emissions sensors, including diagnostic procedures and replacement guidelines.

Technical Service Bulletin for Emissions Sensor Updates

Coming Soon

This bulletin covers software updates and technical enhancements for emissions sensors to improve performance and compliance.

Mercedes SLC Emissions Sensor Parts Catalog

Coming Soon

This catalog lists all available emissions sensors and related components, including part numbers and compatibility information.

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