Mercedes-Benz Mercedes B-Class 2011-2018 Exhaust Specifications
Mercedes-Benz Mercedes B-Class 2011-2018

Mercedes-Benz Mercedes B-Class 2011-2018 Exhaust Specifications

Explore detailed exhaust system specifications for the 2011-2018 Mercedes-Benz B-Class, including catalytic converters, mufflers, pipes, and sensors. Ideal for maintenance, repairs, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the exhaust systems used in Mercedes B-Class vehicles from 2011 to 2018. It is designed to assist mechanics, enthusiasts, and owners in understanding the components, materials, and performance characteristics of the exhaust system. Use the search and navigation instructions to quickly find relevant information.

How to Use

Use the search bar to enter keywords like 'catalytic converter' or 'muffler' to locate specific parts of the exhaust system. Results will highlight relevant sections and subsections.

Scroll through the sections to explore major topics. Click on subsection titles to expand and view detailed technical points. Use the quick reference table for key specifications.

Key Specifications

Exhaust Pipe Diameter

60-70 mm

Catalytic Converter Material

Stainless Steel

Muffler Weight

8-10 kg

Emission Standard Compliance

Euro 5/Euro 6

Recommended Inspection Interval

20,000 miles

Available Specifications

Exhaust System Components

This section covers the primary components of the Mercedes B-Class exhaust system, including the catalytic converter, muffler, pipes, and sensors. Learn about their functions, materials, and placement within the vehicle.

Catalytic Converter
  • Reduces harmful emissions by converting pollutants into less harmful gases
  • Made of stainless steel for durability and heat resistance
  • Located between the exhaust manifold and the muffler
  • Equipped with oxygen sensors for optimal performance
  • Complies with Euro 5 and Euro 6 emission standards
Muffler
  • Reduces exhaust noise using sound-dampening materials
  • Constructed from aluminized steel for corrosion resistance
  • Positioned at the rear of the vehicle
  • Features a dual exhaust tip design on certain models
  • Optimized for minimal backpressure
Exhaust Pipes
  • Made of high-grade stainless steel for longevity
  • Designed to minimize heat loss and improve efficiency
  • Includes flexible sections to accommodate engine movement
  • Available in varying diameters depending on the engine type
  • Rust-resistant coating for enhanced durability

Performance and Efficiency

Explore how the exhaust system contributes to the overall performance and fuel efficiency of the Mercedes B-Class. This section includes details on backpressure, airflow, and emission control.

Backpressure Management
  • Optimized pipe diameter to balance backpressure and airflow
  • Reduced backpressure improves engine efficiency
  • Tuned for specific engine outputs (petrol and diesel variants)
  • Enhances torque and horsepower delivery
  • Minimizes turbo lag in turbocharged models
Emission Control
  • Integrated catalytic converter for effective emission reduction
  • Oxygen sensors monitor and adjust air-fuel ratio
  • Supports AdBlue technology in diesel models
  • Meets stringent European emission standards
  • Regular maintenance ensures long-term compliance

Maintenance and Troubleshooting

This section provides guidance on maintaining the exhaust system and diagnosing common issues. Learn about inspection intervals, common problems, and replacement recommendations.

Inspection and Maintenance
  • Inspect exhaust system every 20,000 miles or annually
  • Check for rust, cracks, and loose connections
  • Replace worn-out gaskets and seals promptly
  • Clean oxygen sensors to ensure accurate readings
  • Use OEM parts for replacements to maintain performance
Common Issues
  • Rust and corrosion in high-moisture environments
  • Cracked or damaged catalytic converter
  • Excessive noise due to muffler failure
  • Check engine light triggered by faulty oxygen sensors
  • Leaks at pipe joints or connections

Component Specifications

Overview

Type
Stainless Steel Dual Exhaust System
Configuration
Dual rear exit
Platform
MFA (Modular Front Architecture)
Material
Stainless steel
Location
Underbody, rear section

Dimensions

Overall Length
72 inches (182.88 cm)
Pipe Diameter
2.5 inches (6.35 cm)
Muffler Length
24 inches (60.96 cm)
Muffler Width
8 inches (20.32 cm)
Muffler Height
6 inches (15.24 cm)
Tailpipe Diameter
3 inches (7.62 cm)
Tailpipe Length
12 inches (30.48 cm)

Materials

Exhaust Pipes
304 stainless steel
Muffler Body
409 stainless steel
Catalytic Converter
Ceramic substrate with stainless steel housing
Hangers
Rubber with steel reinforcement
Gaskets
Graphite and stainless steel

Features

Performance
  • Optimized flow design
  • Reduced back pressure
  • Enhanced engine sound tuning
  • Improved exhaust gas evacuation
Durability
  • Corrosion-resistant stainless steel
  • Heat-resistant coatings
  • Reinforced hangers
  • Vibration dampening
Emissions
  • Integrated catalytic converter
  • Oxygen sensor compatibility
  • Compliant with Euro 5 and Euro 6 standards
  • Low particulate emissions
Design
  • Dual exhaust tips with chrome finish
  • Aerodynamic shape
  • Compact muffler design
  • Seamless welding
installation
  • Direct bolt-on fitment
  • Precision-engineered hangers
  • Alignment marks for easy installation
  • Compatible with OEM mounting points

Safety Features

Heat Protection
  • Heat shields on critical components
  • Thermal insulation on underbody
Structural integrity
  • Reinforced welds
  • Crash-resistant design
Emissions Control
  • Catalytic converter with OBD-II compatibility
  • Leak detection system

Comfort Features

Noise Reduction
  • Acoustic dampening in muffler
  • Resonator for sound tuning
Vibration Control
  • Rubber hangers with steel cores
  • Flexible joints
Thermal Management
  • Heat dissipation design
  • Insulated underbody components

Accessories

Performance Upgrades
  • High-flow catalytic converter
  • Sport muffler
  • Titanium exhaust tips
Maintenance Tools
  • Exhaust hanger removal tool
  • Oxygen sensor socket
  • Exhaust sealant
Protective Products
  • Heat-resistant paint
  • Exhaust wrap
  • Corrosion inhibitor spray

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Inspect for leaks
  • Check hangers and mounts
  • Clean exhaust tips
  • Inspect catalytic converter
  • Test oxygen sensors
Maintenance Notes
Avoid harsh chemicals on chrome tips. Regularly check for rust in high-humidity areas.

Warranty

Standard Warranty
Miles: 50,000
Years: 4
Coverage: Manufacturing defects
Corrosion Warranty
Miles: 100,000
Years: 7
Coverage: Perforation due to rust
Performance Warranty
Miles: 30,000
Years: 2
Coverage: Flow efficiency and sound quality
Warranty Terms
Valid only with proper maintenance and installation by certified technicians.

Production Details

Manufacturer
Mercedes-Benz AG
Manufacturing Process
  • Laser cutting of stainless steel
  • Robotic welding
  • Pressure testing
  • Acoustic tuning
Quality Control
Material inspection: X-ray and ultrasonic testing
Leak Testing: Pressure and smoke tests
Fitment Checks: 3D scanning and alignment verification
Sustainability Practices
  • Recycled stainless steel usage
  • Low-emission manufacturing
  • Waste reduction initiatives
Production Metrics
Annual Production: 150,000 units
Defect Rate: 0.02%
Energy Efficiency: 85%

Service Information for exhaust Service

Maintenance and service requirements specific to the exhaust system

30,000
24
  • Inspect exhaust system for leaks
  • Check hangers and mounts for wear
  • Clean exhaust tips
  • Inspect catalytic converter
  • Test oxygen sensors

Ensure proper torque on all bolts and clamps.

60,000
48
  • Replace exhaust gaskets
  • Inspect heat shields
  • Check for corrosion
  • Test exhaust back pressure
  • Verify emissions performance

Use OEM parts for replacements to maintain warranty.

100,000
84
  • Replace catalytic converter if needed
  • Inspect and replace hangers
  • Check entire exhaust alignment
  • Perform full emissions test
  • Replace oxygen sensors if required

Major service may require specialized tools and diagnostics.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is this exhaust system compatible with all 2011-2018 Mercedes B-Class models?

Yes, this exhaust system is designed to be compatible with all 2011-2018 Mercedes B-Class models, including both gasoline and diesel variants. It adheres to OEM specifications, ensuring proper fitment and performance. However, it is always recommended to verify your vehicle’s exact model and engine type before purchase to ensure compatibility. Specific details about compatibility can be found in the product documentation or by contacting the manufacturer directly.

Q2

What maintenance is required for the exhaust system?

Regular maintenance for the exhaust system includes inspecting for rust, cracks, or leaks every 10,000 miles or during routine service. Cleaning the exterior with a mild detergent and water can prevent corrosion. Ensure all mounting points and gaskets are secure. If you notice unusual noises, reduced performance, or increased emissions, have the system inspected by a professional. Proper maintenance ensures longevity and optimal performance of the exhaust system.

Q3

How do I install or replace the exhaust system?

To install or replace the exhaust system, first, safely elevate the vehicle and secure it on jack stands. Remove the old exhaust by detaching the clamps, hangers, and bolts. Clean the mating surfaces and install the new exhaust system, ensuring proper alignment. Secure all clamps and bolts tightly. Double-check for leaks by running the engine and inspecting the connections. For detailed instructions, refer to the vehicle’s service manual or seek professional assistance.

Q4

What should I do if my exhaust system is making unusual noises?

Unusual noises from the exhaust system, such as rattling or hissing, often indicate loose components, leaks, or damage. First, visually inspect the system for loose clamps, hangers, or holes. Tighten any loose parts or replace damaged components. If the issue persists, check the catalytic converter, muffler, or exhaust pipes for internal damage. Professional diagnostics may be required for complex issues. Addressing problems promptly prevents further damage and ensures safety.

Q5

How can I optimize the performance of my exhaust system?

To optimize performance, ensure the exhaust system is free of obstructions and leaks. Upgrade to a high-flow catalytic converter or performance muffler for improved airflow. Regularly clean and inspect the system to prevent corrosion. Proper tuning of the engine can also enhance exhaust efficiency. Avoid harsh driving conditions that may cause excessive heat or stress on the system. These steps can improve horsepower, fuel efficiency, and 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 B-Class Exhaust System Service Manual

Coming Soon

This manual provides detailed instructions for the installation, maintenance, and troubleshooting of the exhaust system for 2011-2018 Mercedes B-Class models.

Technical Service Bulletin: Exhaust System Updates

Coming Soon

This bulletin outlines recent updates and common issues related to the exhaust system for 2011-2018 Mercedes B-Class vehicles, along with recommended solutions.

Mercedes B-Class Exhaust Parts Catalog

Coming Soon

This catalog lists all available exhaust system components and accessories for 2011-2018 Mercedes B-Class models, including part numbers and compatibility details.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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