BMW 330i 2019-present Exhaust Specifications
Comprehensive technical specifications for the 2019-Present BMW 330i exhaust system, including detailed component descriptions, torque values, and emissions compliance. Ideal for technicians and enthusiasts.
Overview Specifications
Comprehensive description of the exhaust specifications for the 2019-Present BMW 330I, including key features, measurements, and technical details. This section provides detailed insights into the exhaust system's design, components, and performance specifications.
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Use the search function to locate specific exhaust specifications by entering keywords such as 'catalytic converter,' 'muffler,' or 'exhaust pipe diameter.'
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Key Specifications
Exhaust Pipe Diameter
60 mm (2.36 in)
Catalytic Converter Efficiency
>95% CO reduction
Muffler Weight
8.5 kg (18.74 lbs)
Exhaust System Weight
22.5 kg (49.6 lbs)
Resonator Dimensions
400 mm x 150 mm x 150 mm (15.75 in x 5.91 in x 5.91 in)
Available Specifications
Exhaust System Overview
This section provides an overview of the BMW 330I's exhaust system, including its design, materials, and key components.
Exhaust System Overview
This section provides an overview of the BMW 330I's exhaust system, including its design, materials, and key components.
General Design and Layout
- Twin-pipe exhaust system with dual tailpipes
- Constructed from high-grade stainless steel for durability and corrosion resistance
- Integrated catalytic converters for emissions control
- Optimized for reduced backpressure and improved engine performance
- Total system weight: 22.5 kg (49.6 lbs)
Key Components
- Primary catalytic converter located near the exhaust manifold
- Secondary catalytic converter integrated into the mid-pipe
- Resonator and muffler assembly for noise reduction
- Exhaust tips with chrome finish for aesthetic appeal
- Flexible exhaust hangers for vibration dampening
Note: The catalytic converters are designed to meet Euro 6d-TEMP emissions standards.
Exhaust Pipe Specifications
Detailed specifications for the exhaust pipes, including diameters, lengths, and materials.
Exhaust Pipe Specifications
Detailed specifications for the exhaust pipes, including diameters, lengths, and materials.
Primary Exhaust Pipe
- Diameter: 60 mm (2.36 in)
- Length: 1,200 mm (47.24 in)
- Material: 409 stainless steel
- Wall thickness: 1.5 mm (0.059 in)
- Heat-resistant coating for thermal management
Secondary Exhaust Pipe
- Diameter: 50 mm (1.97 in)
- Length: 800 mm (31.5 in)
- Material: 304 stainless steel
- Wall thickness: 1.2 mm (0.047 in)
- Integrated flanges for easy assembly and disassembly
Note: The secondary pipe is designed to minimize exhaust gas turbulence.
Catalytic Converter Specifications
Technical details and performance specifications for the catalytic converters.
Catalytic Converter Specifications
Technical details and performance specifications for the catalytic converters.
Primary Catalytic Converter
- Ceramic substrate with 400 cells per square inch (cpsi)
- Platinum, palladium, and rhodium catalyst coating
- Operating temperature range: 400°C to 800°C (752°F to 1,472°F)
- Efficiency: >95% reduction in CO, HC, and NOx emissions
- Weight: 4.2 kg (9.26 lbs)
Secondary Catalytic Converter
- Metallic substrate with 300 cpsi
- Palladium and rhodium catalyst coating
- Operating temperature range: 300°C to 700°C (572°F to 1,292°F)
- Efficiency: >90% reduction in CO and HC emissions
- Weight: 3.5 kg (7.72 lbs)
Note: The secondary converter is optimized for low-temperature performance.
Muffler and Resonator Specifications
Details about the muffler and resonator, including design and acoustic performance.
Muffler and Resonator Specifications
Details about the muffler and resonator, including design and acoustic performance.
Muffler Design
- Chambered design with sound-absorbing materials
- Internal baffles for noise reduction
- Exterior dimensions: 600 mm x 300 mm x 200 mm (23.62 in x 11.81 in x 7.87 in)
- Weight: 8.5 kg (18.74 lbs)
- Acoustic performance: Reduces exhaust noise by 20 dB
Resonator Specifications
- Helmholtz resonator design
- Tuned to eliminate specific exhaust frequencies
- Dimensions: 400 mm x 150 mm x 150 mm (15.75 in x 5.91 in x 5.91 in)
- Weight: 3.2 kg (7.05 lbs)
- Material: 409 stainless steel
Note: The resonator is tuned to minimize drone at cruising speeds.
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Component Specifications
General information
- System Type
- Twin-pipe exhaust system with dual tailpipes
- Material
- Stainless steel
- Emission Standard
- Euro 6d-TEMP
- Part Number
- 18307653710
- Cross Reference
- Catalytic converter, oxygen sensors, exhaust manifold
Exhaust Manifold
- Material
- Cast iron
- Part Number
- 11627586921
- Bolt Torque
- 25 Nm
- Gasket Material
- Graphite
- Gasket Part Number
- 11627586922
Catalytic Converter
- Type
- Three-way catalytic converter
- Part Number
- 18307653711
- Efficiency
- >95%
- Operating Temperature
- 400-800°C
- Cross Reference
- Oxygen sensors, exhaust manifold
Oxygen Sensors
- Upstream Sensor Part Number
- 11787586923
- Downstream Sensor Part Number
- 11787586924
- Operating Temperature
- -40 to 900°C
- Voltage Range
- 0.1-0.9V
- Response Time
- <100ms
Muffler
- Type
- Dual-chamber muffler
- Material
- Stainless steel
- Part Number
- 18307653712
- Noise Reduction
- 20-30 dB
- Weight
- 8.5 kg
Tailpipes
- Diameter
- 90 mm
- Material
- Stainless steel
- Finish
- Chrome-plated
- Part Number
- 18307653713
- Cross Reference
- Muffler
Exhaust Pipes
- Diameter
- 60 mm
- Material
- Stainless steel
- Wall Thickness
- 1.5 mm
- Part Number
- 18307653714
- Cross Reference
- Muffler, catalytic converter
Mounting System
- Rubber Mounts Part Number
- 18307653715
- Bracket Material
- Steel
- Bracket Part Number
- 18307653716
- Bolt Torque
- 22 Nm
- Cross Reference
- Exhaust pipes, muffler
Operational Parameters
- Max Exhaust Gas Temperature
- 950°C
- Max Back Pressure
- 0.3 bar
- Idle Emission Levels
- CO: <0.5%HC: <100 ppmNOx: <100 ppm
Diagnostic Specifications
- Fault Codes
-
- P0420 - Catalyst System Efficiency Below Threshold
- P0430 - Catalyst System Efficiency Below Threshold (Bank 2)
- P0135 - O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
- P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
- Diagnostic Tools
-
- BMW ISTA diagnostic software
- OBD-II scanner
- Test Procedures
-
- Check oxygen sensor voltage
- Inspect catalytic converter temperature
- Measure exhaust back pressure
Service Information Service
Detailed service requirements and schedules for the exhaust system
- Inspect exhaust system for leaks and damage
- Check oxygen sensor functionality
- Verify catalytic converter efficiency
Replace any damaged components immediately
- Replace oxygen sensors
- Inspect and clean exhaust tips
- Check and tighten all exhaust mounts
Use only BMW-approved parts for replacements
- Replace catalytic converter if efficiency is below 90%
- Inspect and replace exhaust gaskets as needed
- Check entire exhaust system for corrosion
Perform a full exhaust system diagnostic
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the exhaust system configuration for the 2019-Present BMW 330i?
What is the exhaust system configuration for the 2019-Present BMW 330i?
The 2019-Present BMW 330i features a dual-branch exhaust system with a single turbocharger. The system includes a catalytic converter, resonator, and dual tailpipes. The exhaust diameter is 65mm, and it is designed to optimize backpressure for improved performance and fuel efficiency.
Q2 What material is used in the BMW 330i exhaust system?
What material is used in the BMW 330i exhaust system?
The exhaust system is constructed from high-quality stainless steel, which provides excellent corrosion resistance and durability. The tailpipes are chrome-plated for a premium finish.
Q3 How often should the exhaust system be inspected?
How often should the exhaust system be inspected?
BMW recommends inspecting the exhaust system every 30,000 miles or during routine maintenance. Look for signs of corrosion, leaks, or damage to the catalytic converter, muffler, and pipes. Immediate inspection is required if unusual noises or reduced performance are noticed.
Q4 Can aftermarket exhaust systems affect the BMW 330i's performance?
Can aftermarket exhaust systems affect the BMW 330i's performance?
Aftermarket exhaust systems may alter performance, sound, and emissions. Non-genuine parts can void the vehicle's warranty and may not meet BMW's engineering standards. Always consult a BMW-certified technician before making modifications.
Q5 What is the torque specification for exhaust manifold bolts?
What is the torque specification for exhaust manifold bolts?
The exhaust manifold bolts on the BMW 330i should be torqued to 23 Nm (17 ft-lbs) in a crisscross pattern to ensure even pressure and prevent leaks.
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 330i Exhaust System Maintenance Guide
Coming SoonA detailed guide on maintaining the exhaust system, including inspection tips and common issues.
Genuine BMW Exhaust Parts Catalog
Coming SoonAccess the official catalog for genuine BMW exhaust components, ensuring compatibility and warranty compliance.
BMW 330i Exhaust System Repair Manual
Coming SoonStep-by-step instructions for diagnosing and repairing the exhaust system, including safety precautions.
BMW Warranty and Exhaust Modifications
Coming SoonLearn how aftermarket modifications can impact your BMW warranty and what steps to take to remain compliant.
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