BMW 340i 2012-2018 Exhaust Specifications
Detailed guide covering the exhaust system specifications for the 2012-2018 BMW 340i, including components, materials, emissions, and performance metrics. Ideal for maintenance, repairs, and upgrades.
Exhaust System Specifications Specifications
This document provides a comprehensive overview of the exhaust system specifications for the 2012-2018 BMW 340i. It includes detailed technical information, components, performance metrics, and maintenance guidelines. Use this guide to understand the design, functionality, and servicing requirements of the exhaust system. Navigate through the sections to find specific details or use the quick reference section for key specifications.
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Key Specifications
Engine
3.0L N55 Twin-scroll Turbo I6
Horsepower
300 HP at 5,800 RPM
Torque
300 lb-ft at 1,300-4,500 RPM
Top Speed
155 mph (electronically limited)
Exhaust Type
Dual exhaust with twin tailpipes
Available Specifications
Exhaust System Overview
This section provides an overview of the BMW 340i exhaust system, including its design, materials, and key features. It covers the system's layout, emissions compliance, and acoustic performance.
Exhaust System Overview
This section provides an overview of the BMW 340i exhaust system, including its design, materials, and key features. It covers the system's layout, emissions compliance, and acoustic performance.
Key Features
- Dual exhaust system with twin tailpipes
- Stainless steel construction for durability
- Integrated catalytic converter for emissions control
- Acoustic tuning for optimized sound performance
- Weight-optimized design for improved efficiency
Emission Standards
- Complies with Euro 5 and Euro 6 standards
- Reduced emissions through advanced catalytic converter technology
- Meets global emissions regulations
- Designed for low environmental impact
Sound Characteristics
- Sport-tuned exhaust note for enhanced driving experience
- Noise level optimized for comfort and performance
- Minimal resonance and vibration
- Sound level: 74 dB at 4,000 RPM
Exhaust Components
This section details the individual components of the exhaust system, including technical specifications and materials used.
Exhaust Components
This section details the individual components of the exhaust system, including technical specifications and materials used.
Exhaust Manifold
- Made from high-temperature-resistant stainless steel
- Twin-scroll design for improved turbocharger efficiency
- Precision-welded joints for durability
- Weight: 12.5 kg
Catalytic Converter
- High-efficiency catalyst for reduced emissions
- Honeycomb substrate for optimal flow
- Oxygen sensor integration for precise monitoring
- Dimensions: 420 mm x 120 mm
Muffler
- Dual-chamber design for sound optimization
- Internal baffling for noise reduction
- Stainless steel mesh for durability
- Weight: 8.2 kg
Performance Metrics
This section outlines the performance characteristics of the exhaust system, including power output, torque, and sound levels.
Performance Metrics
This section outlines the performance characteristics of the exhaust system, including power output, torque, and sound levels.
Power Output
- Maximum horsepower: 300 HP at 5,800 RPM
- Peak torque: 300 lb-ft at 1,300-4,500 RPM
- Optimized backpressure for increased power
- Improved throttle response
Torque Curve
- Flat torque curve for consistent power delivery
- Torque peak maintained across mid-range RPM
- Enhanced low-end torque for acceleration
- Max torque: 300 lb-ft at 1,300-4,500 RPM
Sound Level
- Idle noise: 42 dB
- Cruising noise: 68 dB at 60 mph
- Maximum noise: 74 dB at 4,000 RPM
- Compliant with noise regulations
Maintenance and Service
This section provides guidelines for the maintenance and servicing of the exhaust system, including inspection intervals and common issues.
Maintenance and Service
This section provides guidelines for the maintenance and servicing of the exhaust system, including inspection intervals and common issues.
Service Intervals
- Inspect exhaust system every 15,000 miles
- Replace gaskets and seals as needed
- Check for corrosion or damage
- Clean catalytic converter every 30,000 miles
Common Issues
- Rust and corrosion over time
- Loose or damaged heat shields
- Clogged catalytic converter
- Worn-out gaskets and seals
Replacement Costs
- Exhaust manifold: $800-$1,200
- Catalytic converter: $1,500-$2,500
- Muffler: $400-$800
- Labor costs: $300-$600
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Component Specifications
Overview
- Type
- Dual Exhaust System
- Configuration
- Dual exhaust with round tips
- Platform
- F30
- Material
- Stainless Steel
- Location
- Rear-mounted
Dimensions
- Exhaust Pipe Diameter
- 2.5 in (63.5 mm)
- Muffler Size
- 18.5 in x 8.5 in x 4.5 in (470 mm x 216 mm x 114 mm)
- Catalytic Converter Size
- 14.5 in x 5.5 in (368 mm x 140 mm)
- Tailpipe Length
- 48 in (1219 mm)
- Tailpipe Tip Diameter
- 3.5 in (88.9 mm)
- Heat Shield Size
- 24 in x 6 in (610 mm x 152 mm)
- Overall Length
- 72 in (1829 mm)
Materials
- Exhaust Manifold
- Cast Iron
- Downpipe
- Stainless Steel
- Mid-Pipe
- Stainless Steel
- Muffler
- Stainless Steel
- Tailpipe
- Chrome-Plated Stainless Steel
Features
- Sound Reduction
-
- Straight-through design
- Chambered muffler
- Resonator
- Acoustic insulation
- Tailpipe diffuser
- Performance Enhancement
-
- High-flow catalytic converter
- Large diameter piping
- Minimal backpressure
- Free-flow muffler
- Dyno-tuned system
- Styling
-
- Polished chrome tips
- Dual exit design
- Oval-shaped tips
- UV-resistant finish
- Laser-etched BMW logo
- Emissions Control
-
- Catalytic converter
- Exhaust gas recirculation
- Secondary air injection
- Oxygen sensor integration
- EURO 5 compliance
- Durability
-
- Welded joints
- Double-layer heat shields
- Corrosion-resistant coating
- Flexible bellows
- Reinforced mounting points
- Heat Management
-
- Heat-resistant materials
- Thermal insulation
- Shielded components
- Temperature-controlled exhaust valve
- Cooling system integration
Safety Features
- Heat Protection
-
- Heat shields
- Thermal insulation
- Fire-resistant materials
- Emissions Safety
-
- Catalytic converter
- Exhaust gas recirculation
- Oxygen sensor
- Structural integrity
-
- Reinforced mounting points
- Flexible bellows
- Welded joints
Comfort Features
- Noise Reduction
-
- Acoustic insulation
- Chambered muffler
- Resonator
- Smooth Operation
-
- Free-flow design
- Minimal backpressure
- Dyno-tuned system
- Convenience
-
- Easy maintenance access
- Quick-release clamps
- Adjustable hanger brackets
- Aesthetic Appeal
-
- Polished chrome tips
- Dual exit design
- Laser-etched logo
Accessories
- Replacement Parts
-
- Exhaust gaskets
- Clamps
- Heat shields
- Tailpipe tips
- Upgrade Kits
-
- High-performance muffler
- Sport catalytic converters
- Exhaust tuning system
- Trim And Finish
-
- Chrome-plated tips
- Carbon fiber tips
- Titanium tips
Maintenance
- Service interval
- Every 15,000 miles or 12 months
- Service Items
-
- Inspect exhaust system for leaks
- Check exhaust mounts and hangers
- Replace exhaust gaskets if necessary
- Clean or replace spark arrestor
- Inspect catalytic converter efficiency
- Maintenance Notes
- Recommended to use OEM or equivalent parts. Exhaust system should be inspected annually or if unusual noises are detected.
Warranty
- New Vehicle Warranty
- Miles: 50,000 milesYears: 4 yearsCoverage: Exhaust system components
- Emissions Warranty
- Miles: 150,000 milesYears: 15 yearsCoverage: Catalytic converter and emissions control devices
- Corrosion Perforation Warranty
- Miles: 12 yearsYears: Unlimited milesCoverage: Exhaust system corrosion
Production Details
- Manufacturer
- BMW Group
- Manufacturing Process
-
- Robotic welding
- Laser cutting
- CNC machining
- Hydroforming
- TIG welding
- Quality Control
- inspection: 100% leak testingTesting: Acoustic performance testingCertification: EURO 5 complianceDocumentation: Traceable part numbering
- Sustainability Practices
-
- Recyclable materials
- Low-emission manufacturing
- Energy-efficient processes
- Waste reduction programs
- Production Metrics
- Annual Production: Over 100,000 unitsCycle Time: Less than 2 hours per unitQuality Rating: 99.9% defect-free rateCustomer Satisfaction: 95% satisfaction rate
Service Information for Exhaust System Service
Maintenance and service requirements specific to the BMW 340i exhaust system
- Inspect exhaust system for leaks or damage
- Check exhaust mounts and hangers
- Clean or replace exhaust system gaskets
- Inspect catalytic converter efficiency
- Check for any unusual noises
Recommended for vehicles driven in normal conditions. More frequent inspections recommended for vehicles driven in harsh or high-performance conditions.
- Replace exhaust system gaskets
- Inspect and clean spark arrestor
- Check exhaust system clamps and brackets
- Inspect catalytic converter for signs of wear
- Check oxygen sensor function
Replace gaskets if any signs of degradation are found. Clean spark arrestor only if necessary.
- Inspect entire exhaust system for corrosion
- Replace exhaust system clamps and brackets if necessary
- Check exhaust system flexibility
- Inspect catalytic converter for efficiency
- Perform exhaust system backpressure test
Critical inspection interval. Any defects found should be addressed immediately to avoid system failure.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the exhaust system for the 2012-2018 BMW 340i?
What are the technical specifications of the exhaust system for the 2012-2018 BMW 340i?
The exhaust system for the 2012-2018 BMW 340i is designed to work with the N20 or N26 engine, featuring a dual-pipe setup with a rear muffler. It is compatible with both rear-wheel-drive and all-wheel-drive models. The system includes stainless steel construction for durability and reduced backpressure, improving performance and sound quality.
Q2 What maintenance is required for the exhaust system?
What maintenance is required for the exhaust system?
Regular inspection of the exhaust system is recommended every 15,000 to 30,000 miles. Check for signs of rust, leaks, or damage. Clean the exhaust tips periodically to prevent corrosion. Replace any damaged or corroded components promptly to maintain performance and avoid costly repairs.
Q3 How do I install or replace the exhaust system?
How do I install or replace the exhaust system?
Installation or replacement of the exhaust system should be done by a qualified mechanic or experienced DIYer. Raise the vehicle on a lift, remove the heat shields, and disconnect the oxygen sensors. Carefully remove the old exhaust system and install the new one, ensuring all connections are tight and properly aligned. Reconnect sensors and test the system for leaks.
Q4 How do I troubleshoot common issues with the exhaust system?
How do I troubleshoot common issues with the exhaust system?
Common issues include rattling noises, decreased performance, or check engine lights. Inspect for loose hangers or damaged mounts. Check for leaks near the manifold or joints. If the check engine light is on, use an OBD-II scanner to identify fault codes related to the exhaust system. Address any corrosion or blockages promptly.
Q5 How can I optimize the performance of my exhaust system?
How can I optimize the performance of my exhaust system?
For optimal performance, consider upgrading to a high-flow cat-back exhaust system or a performance mid-pipe. Ensure proper alignment and tight connections during installation. Pairing with a tune or ECU update can further enhance power and sound. Regular maintenance and inspections will also help maintain peak 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.
BMW 340i Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and technical specifications for the 2012-2018 BMW 340i.
Technical Bulletin: Exhaust System Update
Coming SoonOfficial BMW technical bulletin addressing updates and improvements for the exhaust system in 2012-2018 models.
BMW Performance Parts Catalog
Coming SoonCatalog of genuine and aftermarket performance parts for the BMW 340i, including exhaust components.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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